CloudWatch: Datasource improvements (#20268)

* CloudWatch: Datasource improvements

* Add statistic as template variale

* Add wildcard to list of values

* Template variable intercept dimension key

* Return row specific errors when transformation error occured

* Add meta feedback

* Make it possible to retrieve values without known metrics

* Add curated dashboard for EC2

* Fix broken tests

* Use correct dashboard name

* Display alert in case multi template var is being used for some certain props in the cloudwatch query

* Minor fixes after feedback

* Update dashboard json

* Update snapshot test

* Make sure region default is intercepted in cloudwatch link

* Update dashboards

* Include ec2 dashboard in ds

* Do not include ec2 dashboard in beta1

* Display actual region

public/app/plugins/datasource/cloudwatch/components/Alias.test.tsx

@@ -0,0 +1,10 @@
+import React from 'react';
+import renderer from 'react-test-renderer';
+import { Alias } from './Alias';
+
+describe('Alias', () => {
+  it('should render component', () => {
+    const tree = renderer.create(<Alias value={'legend'} onChange={() => {}} />).toJSON();
+    expect(tree).toMatchSnapshot();
+  });
+});

public/app/plugins/datasource/cloudwatch/components/Alias.tsx

@@ -0,0 +1,21 @@
+import React, { FunctionComponent, useState } from 'react';
+import { debounce } from 'lodash';
+import { Input } from '@grafana/ui';
+
+export interface Props {
+  onChange: (alias: any) => void;
+  value: string;
+}
+
+export const Alias: FunctionComponent<Props> = ({ value = '', onChange }) => {
+  const [alias, setAlias] = useState(value);
+
+  const propagateOnChange = debounce(onChange, 1500);
+
+  onChange = (e: any) => {
+    setAlias(e.target.value);
+    propagateOnChange(e.target.value);
+  };
+
+  return <Input type="text" className="gf-form-input width-16" value={alias} onChange={onChange} />;
+};

public/app/plugins/datasource/cloudwatch/components/ConfigEditor.test.tsx

@@ -0,0 +1,106 @@
+import React from 'react';
+import { shallow } from 'enzyme';
+import ConfigEditor, { Props } from './ConfigEditor';
+
+jest.mock('app/features/plugins/datasource_srv', () => ({
+  getDatasourceSrv: () => ({
+    loadDatasource: jest.fn().mockImplementation(() =>
+      Promise.resolve({
+        getRegions: jest.fn().mockReturnValue([
+          {
+            label: 'ap-east-1',
+            value: 'ap-east-1',
+          },
+        ]),
+      })
+    ),
+  }),
+}));
+
+const setup = (propOverrides?: object) => {
+  const props: Props = {
+    options: {
+      id: 1,
+      orgId: 1,
+      typeLogoUrl: '',
+      name: 'CloudWatch',
+      access: 'proxy',
+      url: '',
+      database: '',
+      type: 'cloudwatch',
+      user: '',
+      password: '',
+      basicAuth: false,
+      basicAuthPassword: '',
+      basicAuthUser: '',
+      isDefault: true,
+      readOnly: false,
+      withCredentials: false,
+      secureJsonFields: {
+        accessKey: false,
+        secretKey: false,
+      },
+      jsonData: {
+        assumeRoleArn: '',
+        database: '',
+        customMetricsNamespaces: '',
+        authType: 'keys',
+        defaultRegion: 'us-east-2',
+        timeField: '@timestamp',
+      },
+      secureJsonData: {
+        secretKey: '',
+        accessKey: '',
+      },
+    },
+    onOptionsChange: jest.fn(),
+  };
+
+  Object.assign(props, propOverrides);
+
+  return shallow(<ConfigEditor {...props} />);
+};
+
+describe('Render', () => {
+  it('should render component', () => {
+    const wrapper = setup();
+
+    expect(wrapper).toMatchSnapshot();
+  });
+
+  it('should disable access key id field', () => {
+    const wrapper = setup({
+      secureJsonFields: {
+        secretKey: true,
+      },
+    });
+    expect(wrapper).toMatchSnapshot();
+  });
+
+  it('should should show credentials profile name field', () => {
+    const wrapper = setup({
+      jsonData: {
+        authType: 'credentials',
+      },
+    });
+    expect(wrapper).toMatchSnapshot();
+  });
+
+  it('should should show access key and secret access key fields', () => {
+    const wrapper = setup({
+      jsonData: {
+        authType: 'keys',
+      },
+    });
+    expect(wrapper).toMatchSnapshot();
+  });
+
+  it('should should show arn role field', () => {
+    const wrapper = setup({
+      jsonData: {
+        authType: 'arn',
+      },
+    });
+    expect(wrapper).toMatchSnapshot();
+  });
+});

public/app/plugins/datasource/cloudwatch/components/ConfigEditor.tsx

@@ -0,0 +1,390 @@
+import React, { PureComponent, ChangeEvent } from 'react';
+import { FormLabel, Select, Input, Button } from '@grafana/ui';
+import { DataSourcePluginOptionsEditorProps, DataSourceSettings } from '@grafana/data';
+import { SelectableValue } from '@grafana/data';
+import { getDatasourceSrv } from 'app/features/plugins/datasource_srv';
+import CloudWatchDatasource from '../datasource';
+import { CloudWatchJsonData, CloudWatchSecureJsonData } from '../types';
+
+export type Props = DataSourcePluginOptionsEditorProps<CloudWatchJsonData>;
+
+type CloudwatchSettings = DataSourceSettings<CloudWatchJsonData, CloudWatchSecureJsonData>;
+
+export interface State {
+  config: CloudwatchSettings;
+  authProviderOptions: SelectableValue[];
+  regions: SelectableValue[];
+}
+
+export class ConfigEditor extends PureComponent<Props, State> {
+  constructor(props: Props) {
+    super(props);
+
+    const { options } = this.props;
+
+    this.state = {
+      config: ConfigEditor.defaults(options),
+      authProviderOptions: [
+        { label: 'Access & secret key', value: 'keys' },
+        { label: 'Credentials file', value: 'credentials' },
+        { label: 'ARN', value: 'arn' },
+      ],
+      regions: [],
+    };
+
+    this.updateDatasource(this.state.config);
+  }
+
+  static getDerivedStateFromProps(props: Props, state: State) {
+    return {
+      ...state,
+      config: ConfigEditor.defaults(props.options),
+    };
+  }
+
+  static defaults = (options: any) => {
+    options.jsonData.authType = options.jsonData.authType || 'credentials';
+    options.jsonData.timeField = options.jsonData.timeField || '@timestamp';
+
+    if (!options.hasOwnProperty('secureJsonData')) {
+      options.secureJsonData = {};
+    }
+
+    if (!options.hasOwnProperty('jsonData')) {
+      options.jsonData = {};
+    }
+
+    if (!options.hasOwnProperty('secureJsonFields')) {
+      options.secureJsonFields = {};
+    }
+
+    return options;
+  };
+
+  async componentDidMount() {
+    this.loadRegions();
+  }
+
+  loadRegions() {
+    getDatasourceSrv()
+      .loadDatasource(this.state.config.name)
+      .then((ds: CloudWatchDatasource) => {
+        return ds.getRegions();
+      })
+      .then(
+        (regions: any) => {
+          this.setState({
+            regions: regions.map((region: any) => {
+              return {
+                value: region.value,
+                label: region.text,
+              };
+            }),
+          });
+        },
+        (err: any) => {
+          const regions = [
+            'ap-east-1',
+            'ap-northeast-1',
+            'ap-northeast-2',
+            'ap-northeast-3',
+            'ap-south-1',
+            'ap-southeast-1',
+            'ap-southeast-2',
+            'ca-central-1',
+            'cn-north-1',
+            'cn-northwest-1',
+            'eu-central-1',
+            'eu-north-1',
+            'eu-west-1',
+            'eu-west-2',
+            'eu-west-3',
+            'me-south-1',
+            'sa-east-1',
+            'us-east-1',
+            'us-east-2',
+            'us-gov-east-1',
+            'us-gov-west-1',
+            'us-iso-east-1',
+            'us-isob-east-1',
+            'us-west-1',
+            'us-west-2',
+          ];
+
+          this.setState({
+            regions: regions.map((region: string) => {
+              return {
+                value: region,
+                label: region,
+              };
+            }),
+          });
+
+          // expected to fail when creating new datasource
+          // console.error('failed to get latest regions', err);
+        }
+      );
+  }
+
+  updateDatasource = async (config: any) => {
+    for (const j in config.jsonData) {
+      if (config.jsonData[j].length === 0) {
+        delete config.jsonData[j];
+      }
+    }
+
+    for (const k in config.secureJsonData) {
+      if (config.secureJsonData[k].length === 0) {
+        delete config.secureJsonData[k];
+      }
+    }
+
+    this.props.onOptionsChange({
+      ...config,
+    });
+  };
+
+  onAuthProviderChange = (authType: SelectableValue<string>) => {
+    this.updateDatasource({
+      ...this.state.config,
+      jsonData: {
+        ...this.state.config.jsonData,
+        authType: authType.value,
+      },
+    });
+  };
+
+  onRegionChange = (defaultRegion: SelectableValue<string>) => {
+    this.updateDatasource({
+      ...this.state.config,
+      jsonData: {
+        ...this.state.config.jsonData,
+        defaultRegion: defaultRegion.value,
+      },
+    });
+  };
+
+  onResetAccessKey = () => {
+    this.updateDatasource({
+      ...this.state.config,
+      secureJsonFields: {
+        ...this.state.config.secureJsonFields,
+        accessKey: false,
+      },
+    });
+  };
+
+  onAccessKeyChange = (accessKey: string) => {
+    this.updateDatasource({
+      ...this.state.config,
+      secureJsonData: {
+        ...this.state.config.secureJsonData,
+        accessKey,
+      },
+    });
+  };
+
+  onResetSecretKey = () => {
+    this.updateDatasource({
+      ...this.state.config,
+      secureJsonFields: {
+        ...this.state.config.secureJsonFields,
+        secretKey: false,
+      },
+    });
+  };
+
+  onSecretKeyChange = (secretKey: string) => {
+    this.updateDatasource({
+      ...this.state.config,
+      secureJsonData: {
+        ...this.state.config.secureJsonData,
+        secretKey,
+      },
+    });
+  };
+
+  onCredentialProfileNameChange = (database: string) => {
+    this.updateDatasource({
+      ...this.state.config,
+      database,
+    });
+  };
+
+  onArnAssumeRoleChange = (assumeRoleArn: string) => {
+    this.updateDatasource({
+      ...this.state.config,
+      jsonData: {
+        ...this.state.config.jsonData,
+        assumeRoleArn,
+      },
+    });
+  };
+
+  onCustomMetricsNamespacesChange = (customMetricsNamespaces: string) => {
+    this.updateDatasource({
+      ...this.state.config,
+      jsonData: {
+        ...this.state.config.jsonData,
+        customMetricsNamespaces,
+      },
+    });
+  };
+
+  render() {
+    const { config, authProviderOptions, regions } = this.state;
+
+    return (
+      <>
+        <h3 className="page-heading">CloudWatch Details</h3>
+        <div className="gf-form-group">
+          <div className="gf-form-inline">
+            <div className="gf-form">
+              <FormLabel className="width-14">Auth Provider</FormLabel>
+              <Select
+                className="width-30"
+                value={authProviderOptions.find(authProvider => authProvider.value === config.jsonData.authType)}
+                options={authProviderOptions}
+                defaultValue={config.jsonData.authType}
+                onChange={this.onAuthProviderChange}
+              />
+            </div>
+          </div>
+          {config.jsonData.authType === 'credentials' && (
+            <div className="gf-form-inline">
+              <div className="gf-form">
+                <FormLabel
+                  className="width-14"
+                  tooltip="Credentials profile name, as specified in ~/.aws/credentials, leave blank for default."
+                >
+                  Credentials Profile Name
+                </FormLabel>
+                <div className="width-30">
+                  <Input
+                    className="width-30"
+                    placeholder="default"
+                    value={config.jsonData.database}
+                    onChange={(event: ChangeEvent<HTMLInputElement>) =>
+                      this.onCredentialProfileNameChange(event.target.value)
+                    }
+                  />
+                </div>
+              </div>
+            </div>
+          )}
+          {config.jsonData.authType === 'keys' && (
+            <div>
+              {config.secureJsonFields.accessKey ? (
+                <div className="gf-form-inline">
+                  <div className="gf-form">
+                    <FormLabel className="width-14">Access Key ID</FormLabel>
+                    <Input className="width-25" placeholder="Configured" disabled={true} />
+                  </div>
+                  <div className="gf-form">
+                    <div className="max-width-30 gf-form-inline">
+                      <Button variant="secondary" type="button" onClick={this.onResetAccessKey}>
+                        Reset
+                      </Button>
+                    </div>
+                  </div>
+                </div>
+              ) : (
+                <div className="gf-form-inline">
+                  <div className="gf-form">
+                    <FormLabel className="width-14">Access Key ID</FormLabel>
+                    <div className="width-30">
+                      <Input
+                        className="width-30"
+                        value={config.secureJsonData.accessKey || ''}
+                        onChange={(event: ChangeEvent<HTMLInputElement>) => this.onAccessKeyChange(event.target.value)}
+                      />
+                    </div>
+                  </div>
+                </div>
+              )}
+              {config.secureJsonFields.secretKey ? (
+                <div className="gf-form-inline">
+                  <div className="gf-form">
+                    <FormLabel className="width-14">Secret Access Key</FormLabel>
+                    <Input className="width-25" placeholder="Configured" disabled={true} />
+                  </div>
+                  <div className="gf-form">
+                    <div className="max-width-30 gf-form-inline">
+                      <Button variant="secondary" type="button" onClick={this.onResetSecretKey}>
+                        Reset
+                      </Button>
+                    </div>
+                  </div>
+                </div>
+              ) : (
+                <div className="gf-form-inline">
+                  <div className="gf-form">
+                    <FormLabel className="width-14">Secret Access Key</FormLabel>
+                    <div className="width-30">
+                      <Input
+                        className="width-30"
+                        value={config.secureJsonData.secretKey || ''}
+                        onChange={(event: ChangeEvent<HTMLInputElement>) => this.onSecretKeyChange(event.target.value)}
+                      />
+                    </div>
+                  </div>
+                </div>
+              )}
+            </div>
+          )}
+          {config.jsonData.authType === 'arn' && (
+            <div className="gf-form-inline">
+              <div className="gf-form">
+                <FormLabel className="width-14" tooltip="ARN of Assume Role">
+                  Assume Role ARN
+                </FormLabel>
+                <div className="width-30">
+                  <Input
+                    className="width-30"
+                    placeholder="arn:aws:iam:*"
+                    value={config.jsonData.assumeRoleArn || ''}
+                    onChange={(event: ChangeEvent<HTMLInputElement>) => this.onArnAssumeRoleChange(event.target.value)}
+                  />
+                </div>
+              </div>
+            </div>
+          )}
+          <div className="gf-form-inline">
+            <div className="gf-form">
+              <FormLabel
+                className="width-14"
+                tooltip="Specify the region, such as for US West (Oregon) use ` us-west-2 ` as the region."
+              >
+                Default Region
+              </FormLabel>
+              <Select
+                className="width-30"
+                value={regions.find(region => region.value === config.jsonData.defaultRegion)}
+                options={regions}
+                defaultValue={config.jsonData.defaultRegion}
+                onChange={this.onRegionChange}
+              />
+            </div>
+          </div>
+          <div className="gf-form-inline">
+            <div className="gf-form">
+              <FormLabel className="width-14" tooltip="Namespaces of Custom Metrics.">
+                Custom Metrics
+              </FormLabel>
+              <Input
+                className="width-30"
+                placeholder="Namespace1,Namespace2"
+                value={config.jsonData.customMetricsNamespaces || ''}
+                onChange={(event: ChangeEvent<HTMLInputElement>) =>
+                  this.onCustomMetricsNamespacesChange(event.target.value)
+                }
+              />
+            </div>
+          </div>
+        </div>
+      </>
+    );
+  }
+}
+
+export default ConfigEditor;

public/app/plugins/datasource/cloudwatch/components/Dimensions.test.tsx

@@ -0,0 +1,50 @@
+import React from 'react';
+import { mount, shallow } from 'enzyme';
+import { Dimensions } from './';
+import { SelectableStrings } from '../types';
+
+describe('Dimensions', () => {
+  it('renders', () => {
+    mount(
+      <Dimensions
+        dimensions={{}}
+        onChange={dimensions => console.log(dimensions)}
+        loadKeys={() => Promise.resolve<SelectableStrings>([])}
+        loadValues={() => Promise.resolve<SelectableStrings>([])}
+      />
+    );
+  });
+
+  describe('and no dimension were passed to the component', () => {
+    it('initially displays just an add button', () => {
+      const wrapper = shallow(
+        <Dimensions
+          dimensions={{}}
+          onChange={() => {}}
+          loadKeys={() => Promise.resolve<SelectableStrings>([])}
+          loadValues={() => Promise.resolve<SelectableStrings>([])}
+        />
+      );
+
+      expect(wrapper.html()).toEqual(
+        `<div class="gf-form"><a class="gf-form-label query-part"><i class="fa fa-plus"></i></a></div>`
+      );
+    });
+  });
+
+  describe('and one dimension key along with a value were passed to the component', () => {
+    it('initially displays the dimension key, value and an add button', () => {
+      const wrapper = shallow(
+        <Dimensions
+          dimensions={{ somekey: 'somevalue' }}
+          onChange={() => {}}
+          loadKeys={() => Promise.resolve<SelectableStrings>([])}
+          loadValues={() => Promise.resolve<SelectableStrings>([])}
+        />
+      );
+      expect(wrapper.html()).toEqual(
+        `<div class="gf-form"><a class="gf-form-label query-part">somekey</a></div><label class="gf-form-label query-segment-operator">=</label><div class="gf-form"><a class="gf-form-label query-part">somevalue</a></div><div class="gf-form"><a class="gf-form-label query-part"><i class="fa fa-plus"></i></a></div>`
+      );
+    });
+  });
+});

public/app/plugins/datasource/cloudwatch/components/Dimensions.tsx

@@ -0,0 +1,80 @@
+import React, { FunctionComponent, Fragment, useState, useEffect } from 'react';
+import isEqual from 'lodash/isEqual';
+import { SelectableValue } from '@grafana/data';
+import { SegmentAsync } from '@grafana/ui';
+import { SelectableStrings } from '../types';
+
+export interface Props {
+  dimensions: { [key: string]: string | string[] };
+  onChange: (dimensions: { [key: string]: string }) => void;
+  loadValues: (key: string) => Promise<SelectableStrings>;
+  loadKeys: () => Promise<SelectableStrings>;
+}
+
+const removeText = '-- remove dimension --';
+const removeOption: SelectableValue<string> = { label: removeText, value: removeText };
+
+// The idea of this component is that is should only trigger the onChange event in the case
+// there is a complete dimension object. E.g, when a new key is added is doesn't have a value.
+// That should not trigger onChange.
+export const Dimensions: FunctionComponent<Props> = ({ dimensions, loadValues, loadKeys, onChange }) => {
+  const [data, setData] = useState(dimensions);
+
+  useEffect(() => {
+    const completeDimensions = Object.entries(data).reduce(
+      (res, [key, value]) => (value ? { ...res, [key]: value } : res),
+      {}
+    );
+    if (!isEqual(completeDimensions, dimensions)) {
+      onChange(completeDimensions);
+    }
+  }, [data]);
+
+  const excludeUsedKeys = (options: SelectableStrings) => {
+    return options.filter(({ value }) => !Object.keys(data).includes(value));
+  };
+
+  return (
+    <>
+      {Object.entries(data).map(([key, value], index) => (
+        <Fragment key={index}>
+          <SegmentAsync
+            allowCustomValue
+            value={key}
+            loadOptions={() => loadKeys().then(keys => [removeOption, ...excludeUsedKeys(keys)])}
+            onChange={newKey => {
+              const { [key]: value, ...newDimensions } = data;
+              if (newKey === removeText) {
+                setData({ ...newDimensions });
+              } else {
+                setData({ ...newDimensions, [newKey]: '' });
+              }
+            }}
+          />
+          <label className="gf-form-label query-segment-operator">=</label>
+          <SegmentAsync
+            allowCustomValue
+            value={value || 'select dimension value'}
+            loadOptions={() => loadValues(key)}
+            onChange={newValue => setData({ ...data, [key]: newValue })}
+          />
+          {Object.values(data).length > 1 && index + 1 !== Object.values(data).length && (
+            <label className="gf-form-label query-keyword">AND</label>
+          )}
+        </Fragment>
+      ))}
+      {Object.values(data).every(v => v) && (
+        <SegmentAsync
+          allowCustomValue
+          Component={
+            <a className="gf-form-label query-part">
+              <i className="fa fa-plus" />
+            </a>
+          }
+          loadOptions={() => loadKeys().then(excludeUsedKeys)}
+          onChange={(newKey: string) => setData({ ...data, [newKey]: '' })}
+        />
+      )}
+    </>
+  );
+};

public/app/plugins/datasource/cloudwatch/components/Forms.tsx

@@ -0,0 +1,28 @@
+import React, { InputHTMLAttributes, FunctionComponent } from 'react';
+import { FormLabel } from '@grafana/ui';
+
+export interface Props extends InputHTMLAttributes<HTMLInputElement> {
+  label: string;
+  tooltip?: string;
+  children?: React.ReactNode;
+}
+
+export const QueryField: FunctionComponent<Partial<Props>> = ({ label, tooltip, children }) => (
+  <>
+    <FormLabel width={8} className="query-keyword" tooltip={tooltip}>
+      {label}
+    </FormLabel>
+    {children}
+  </>
+);
+
+export const QueryInlineField: FunctionComponent<Props> = ({ ...props }) => {
+  return (
+    <div className={'gf-form-inline'}>
+      <QueryField {...props} />
+      <div className="gf-form gf-form--grow">
+        <div className="gf-form-label gf-form-label--grow" />
+      </div>
+    </div>
+  );
+};

public/app/plugins/datasource/cloudwatch/components/QueryEditor.test.tsx

@@ -0,0 +1,102 @@
+import React from 'react';
+import renderer from 'react-test-renderer';
+import { mount } from 'enzyme';
+import { DataSourceInstanceSettings } from '@grafana/data';
+import { TemplateSrv } from 'app/features/templating/template_srv';
+import { CustomVariable } from 'app/features/templating/all';
+import { QueryEditor, Props } from './QueryEditor';
+import CloudWatchDatasource from '../datasource';
+
+const setup = () => {
+  const instanceSettings = {
+    jsonData: { defaultRegion: 'us-east-1' },
+  } as DataSourceInstanceSettings;
+
+  const templateSrv = new TemplateSrv();
+  templateSrv.init([
+    new CustomVariable(
+      {
+        name: 'var3',
+        options: [
+          { selected: true, value: 'var3-foo' },
+          { selected: false, value: 'var3-bar' },
+          { selected: true, value: 'var3-baz' },
+        ],
+        current: {
+          value: ['var3-foo', 'var3-baz'],
+        },
+        multi: true,
+      },
+      {} as any
+    ),
+  ]);
+
+  const datasource = new CloudWatchDatasource(instanceSettings, {} as any, {} as any, templateSrv as any, {} as any);
+  datasource.metricFindQuery = async param => [{ value: 'test', label: 'test' }];
+
+  const props: Props = {
+    query: {
+      refId: '',
+      id: '',
+      region: 'us-east-1',
+      namespace: 'ec2',
+      metricName: 'CPUUtilization',
+      dimensions: { somekey: 'somevalue' },
+      statistics: new Array<string>(),
+      period: '',
+      expression: '',
+      alias: '',
+      highResolution: false,
+      matchExact: true,
+    },
+    datasource,
+    onChange: jest.fn(),
+    onRunQuery: jest.fn(),
+  };
+
+  return props;
+};
+
+describe('QueryEditor', () => {
+  it('should render component', () => {
+    const props = setup();
+    const tree = renderer.create(<QueryEditor {...props} />).toJSON();
+    expect(tree).toMatchSnapshot();
+  });
+
+  describe('should use correct default values', () => {
+    it('when region is null is display default in the label', () => {
+      const props = setup();
+      props.query.region = null;
+      const wrapper = mount(<QueryEditor {...props} />);
+      expect(
+        wrapper
+          .find('.gf-form-inline')
+          .first()
+          .find('.gf-form-label.query-part')
+          .first()
+          .text()
+      ).toEqual('default');
+    });
+
+    it('should init props correctly', () => {
+      const props = setup();
+      props.query.namespace = null;
+      props.query.metricName = null;
+      props.query.expression = null;
+      props.query.dimensions = null;
+      props.query.region = null;
+      props.query.statistics = null;
+      const wrapper = mount(<QueryEditor {...props} />);
+      const {
+        query: { namespace, region, metricName, dimensions, statistics, expression },
+      } = wrapper.props();
+      expect(namespace).toEqual('');
+      expect(metricName).toEqual('');
+      expect(expression).toEqual('');
+      expect(region).toEqual('default');
+      expect(statistics).toEqual(['Average']);
+      expect(dimensions).toEqual({});
+    });
+  });
+});

public/app/plugins/datasource/cloudwatch/components/QueryEditor.tsx

@@ -0,0 +1,277 @@
+import React, { PureComponent, ChangeEvent } from 'react';
+import { SelectableValue, QueryEditorProps } from '@grafana/data';
+import { Input, Segment, SegmentAsync, ValidationEvents, EventsWithValidation, Switch } from '@grafana/ui';
+import { CloudWatchQuery } from '../types';
+import CloudWatchDatasource from '../datasource';
+import { SelectableStrings } from '../types';
+import { Stats, Dimensions, QueryInlineField, QueryField, Alias } from './';
+
+export type Props = QueryEditorProps<CloudWatchDatasource, CloudWatchQuery>;
+
+interface State {
+  regions: SelectableStrings;
+  namespaces: SelectableStrings;
+  metricNames: SelectableStrings;
+  variableOptionGroup: SelectableValue<string>;
+  showMeta: boolean;
+}
+
+const idValidationEvents: ValidationEvents = {
+  [EventsWithValidation.onBlur]: [
+    {
+      rule: value => new RegExp(/^$|^[a-z][a-zA-Z0-9_]*$/).test(value),
+      errorMessage: 'Invalid format. Only alphanumeric characters and underscores are allowed',
+    },
+  ],
+};
+
+export class QueryEditor extends PureComponent<Props, State> {
+  state: State = { regions: [], namespaces: [], metricNames: [], variableOptionGroup: {}, showMeta: false };
+
+  componentWillMount() {
+    const { query } = this.props;
+
+    if (!query.namespace) {
+      query.namespace = '';
+    }
+
+    if (!query.metricName) {
+      query.metricName = '';
+    }
+
+    if (!query.expression) {
+      query.expression = '';
+    }
+
+    if (!query.dimensions) {
+      query.dimensions = {};
+    }
+
+    if (!query.region) {
+      query.region = 'default';
+    }
+
+    if (!query.statistics || !query.statistics.length) {
+      query.statistics = ['Average'];
+    }
+
+    if (!query.hasOwnProperty('highResolution')) {
+      query.highResolution = false;
+    }
+
+    if (!query.hasOwnProperty('matchExact')) {
+      query.matchExact = true;
+    }
+  }
+
+  componentDidMount() {
+    const { datasource } = this.props;
+    const variableOptionGroup = {
+      label: 'Template Variables',
+      options: this.props.datasource.variables.map(this.toOption),
+    };
+    Promise.all([datasource.metricFindQuery('regions()'), datasource.metricFindQuery('namespaces()')]).then(
+      ([regions, namespaces]) => {
+        this.setState({
+          ...this.state,
+          regions: [...regions, variableOptionGroup],
+          namespaces: [...namespaces, variableOptionGroup],
+          variableOptionGroup,
+        });
+      }
+    );
+  }
+
+  loadMetricNames = async () => {
+    const { namespace, region } = this.props.query;
+    return this.props.datasource.metricFindQuery(`metrics(${namespace},${region})`).then(this.appendTemplateVariables);
+  };
+
+  appendTemplateVariables = (values: SelectableValue[]) => [
+    ...values,
+    { label: 'Template Variables', options: this.props.datasource.variables.map(this.toOption) },
+  ];
+
+  toOption = (value: any) => ({ label: value, value });
+
+  onChange(query: CloudWatchQuery) {
+    const { onChange, onRunQuery } = this.props;
+    onChange(query);
+    onRunQuery();
+  }
+
+  render() {
+    const { query, datasource, onChange, onRunQuery, data } = this.props;
+    const { regions, namespaces, variableOptionGroup: variableOptionGroup, showMeta } = this.state;
+    const metaDataExist = data && Object.values(data).length && data.state === 'Done';
+    return (
+      <>
+        <QueryInlineField label="Region">
+          <Segment
+            value={query.region || 'Select region'}
+            options={regions}
+            allowCustomValue
+            onChange={region => this.onChange({ ...query, region })}
+          />
+        </QueryInlineField>
+
+        {query.expression.length === 0 && (
+          <>
+            <QueryInlineField label="Namespace">
+              <Segment
+                value={query.namespace || 'Select namespace'}
+                allowCustomValue
+                options={namespaces}
+                onChange={namespace => this.onChange({ ...query, namespace })}
+              />
+            </QueryInlineField>
+
+            <QueryInlineField label="Metric Name">
+              <SegmentAsync
+                value={query.metricName || 'Select metric name'}
+                allowCustomValue
+                loadOptions={this.loadMetricNames}
+                onChange={metricName => this.onChange({ ...query, metricName })}
+              />
+            </QueryInlineField>
+
+            <QueryInlineField label="Stats">
+              <Stats
+                stats={datasource.standardStatistics.map(this.toOption)}
+                values={query.statistics}
+                onChange={statistics => this.onChange({ ...query, statistics })}
+                variableOptionGroup={variableOptionGroup}
+              />
+            </QueryInlineField>
+
+            <QueryInlineField label="Dimensions">
+              <Dimensions
+                dimensions={query.dimensions}
+                onChange={dimensions => this.onChange({ ...query, dimensions })}
+                loadKeys={() =>
+                  datasource.getDimensionKeys(query.namespace, query.region).then(this.appendTemplateVariables)
+                }
+                loadValues={newKey => {
+                  const { [newKey]: value, ...newDimensions } = query.dimensions;
+                  return datasource
+                    .getDimensionValues(query.region, query.namespace, query.metricName, newKey, newDimensions)
+                    .then(this.appendTemplateVariables);
+                }}
+              />
+            </QueryInlineField>
+          </>
+        )}
+        {query.statistics.length <= 1 && (
+          <div className="gf-form-inline">
+            <div className="gf-form">
+              <QueryField
+                className="query-keyword"
+                label="Id"
+                tooltip="Id can include numbers, letters, and underscore, and must start with a lowercase letter."
+              >
+                <Input
+                  className="gf-form-input width-8"
+                  onBlur={onRunQuery}
+                  onChange={(event: ChangeEvent<HTMLInputElement>) => onChange({ ...query, id: event.target.value })}
+                  validationEvents={idValidationEvents}
+                  value={query.id || ''}
+                />
+              </QueryField>
+            </div>
+            <div className="gf-form gf-form--grow">
+              <QueryField
+                className="gf-form--grow"
+                label="Expression"
+                tooltip="Optionally you can add an expression here. Please note that if a math expression that is referencing other queries is being used, it will not be possible to create an alert rule based on this query"
+              >
+                <Input
+                  className="gf-form-input"
+                  onBlur={onRunQuery}
+                  value={query.expression || ''}
+                  onChange={(event: ChangeEvent<HTMLInputElement>) =>
+                    onChange({ ...query, expression: event.target.value })
+                  }
+                />
+              </QueryField>
+            </div>
+          </div>
+        )}
+        <div className="gf-form-inline">
+          <div className="gf-form">
+            <QueryField
+              className="query-keyword"
+              label="Min Period"
+              tooltip="Minimum interval between points in seconds"
+            >
+              <Input
+                className="gf-form-input width-8"
+                value={query.period || ''}
+                placeholder="auto"
+                onBlur={onRunQuery}
+                onChange={(event: ChangeEvent<HTMLInputElement>) => onChange({ ...query, period: event.target.value })}
+              />
+            </QueryField>
+          </div>
+          <div className="gf-form">
+            <QueryField
+              className="query-keyword"
+              label="Alias"
+              tooltip="Alias replacement variables: {{metric}}, {{stat}}, {{namespace}}, {{region}}, {{period}}, {{label}}, {{YOUR_DIMENSION_NAME}}"
+            >
+              <Alias value={query.alias} onChange={(value: string) => this.onChange({ ...query, alias: value })} />
+            </QueryField>
+            <Switch
+              label="HighRes"
+              labelClass="query-keyword"
+              checked={query.highResolution}
+              onChange={() => this.onChange({ ...query, highResolution: !query.highResolution })}
+            />
+            <Switch
+              label="Match Exact"
+              labelClass="query-keyword"
+              tooltip="Only show metrics that exactly match all defined dimension names."
+              checked={query.matchExact}
+              onChange={() => this.onChange({ ...query, matchExact: !query.matchExact })}
+            />
+            <label className="gf-form-label">
+              <a
+                onClick={() =>
+                  metaDataExist &&
+                  this.setState({
+                    ...this.state,
+                    showMeta: !showMeta,
+                  })
+                }
+              >
+                <i className={`fa fa-caret-${showMeta ? 'down' : 'right'}`} /> {showMeta ? 'Hide' : 'Show'} Query
+                Preview
+              </a>
+            </label>
+          </div>
+          <div className="gf-form gf-form--grow">
+            <div className="gf-form-label gf-form-label--grow" />
+          </div>
+          {showMeta && metaDataExist && (
+            <table className="filter-table form-inline">
+              <thead>
+                <tr>
+                  <th>Metric Data Query ID</th>
+                  <th>Metric Data Query Expression</th>
+                  <th />
+                </tr>
+              </thead>
+              <tbody>
+                {data.series[0].meta.gmdMeta.map(({ ID, Expression }: any) => (
+                  <tr key={ID}>
+                    <td>{ID}</td>
+                    <td>{Expression}</td>
+                  </tr>
+                ))}
+              </tbody>
+            </table>
+          )}
+        </div>
+      </>
+    );
+  }
+}

public/app/plugins/datasource/cloudwatch/components/Stats.test.tsx

@@ -0,0 +1,21 @@
+import React from 'react';
+import renderer from 'react-test-renderer';
+import { Stats } from './Stats';
+
+const toOption = (value: any) => ({ label: value, value });
+
+describe('Stats', () => {
+  it('should render component', () => {
+    const tree = renderer
+      .create(
+        <Stats
+          values={['Average', 'Minimum']}
+          variableOptionGroup={{ label: 'templateVar', value: 'templateVar' }}
+          onChange={() => {}}
+          stats={['Average', 'Maximum', 'Minimum', 'Sum', 'SampleCount'].map(toOption)}
+        />
+      )
+      .toJSON();
+    expect(tree).toMatchSnapshot();
+  });
+});

public/app/plugins/datasource/cloudwatch/components/Stats.tsx

@@ -0,0 +1,47 @@
+import React, { FunctionComponent } from 'react';
+import { SelectableStrings } from '../types';
+import { SelectableValue } from '@grafana/data';
+import { Segment } from '@grafana/ui';
+
+export interface Props {
+  values: string[];
+  onChange: (values: string[]) => void;
+  variableOptionGroup: SelectableValue<string>;
+  stats: SelectableStrings;
+}
+
+const removeText = '-- remove stat --';
+const removeOption: SelectableValue<string> = { label: removeText, value: removeText };
+
+export const Stats: FunctionComponent<Props> = ({ stats, values, onChange, variableOptionGroup }) => (
+  <>
+    {values &&
+      values.map((value, index) => (
+        <Segment
+          allowCustomValue
+          key={value + index}
+          value={value}
+          options={[removeOption, ...stats, variableOptionGroup]}
+          onChange={value =>
+            onChange(
+              value === removeText
+                ? values.filter((_, i) => i !== index)
+                : values.map((v, i) => (i === index ? value : v))
+            )
+          }
+        />
+      ))}
+    {values.length !== stats.length && (
+      <Segment
+        Component={
+          <a className="gf-form-label query-part">
+            <i className="fa fa-plus" />
+          </a>
+        }
+        allowCustomValue
+        onChange={(value: string) => onChange([...values, value])}
+        options={[...stats.filter(({ value }) => !values.includes(value)), variableOptionGroup]}
+      />
+    )}
+  </>
+);

public/app/plugins/datasource/cloudwatch/components/ThrottlingErrorMessage.tsx

@@ -0,0 +1,27 @@
+import React, { FunctionComponent } from 'react';
+
+export interface Props {
+  region: string;
+}
+
+export const ThrottlingErrorMessage: FunctionComponent<Props> = ({ region }) => (
+  <p>
+    Please visit the&nbsp;
+    <a
+      target="_blank"
+      className="text-link"
+      href={`https://${region}.console.aws.amazon.com/servicequotas/home?region=${region}#!/services/monitoring/quotas/L-5E141212`}
+    >
+      AWS Service Quotas console
+    </a>
+    &nbsp;to request a quota increase or see our&nbsp;
+    <a
+      target="_blank"
+      className="text-link"
+      href={`https://grafana.com/docs/features/datasources/cloudwatch/#service-quotas`}
+    >
+      documentation
+    </a>
+    &nbsp;to learn more.
+  </p>
+);

public/app/plugins/datasource/cloudwatch/components/__snapshots__/Alias.test.tsx.snap

@@ -0,0 +1,18 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Alias should render component 1`] = `
+<div
+  style={
+    Object {
+      "flexGrow": 1,
+    }
+  }
+>
+  <input
+    className="gf-form-input gf-form-input width-16"
+    onChange={[Function]}
+    type="text"
+    value="legend"
+  />
+</div>
+`;

public/app/plugins/datasource/cloudwatch/components/__snapshots__/ConfigEditor.test.tsx.snap

@@ -0,0 +1,901 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Render should disable access key id field 1`] = `
+<Fragment>
+  <h3
+    className="page-heading"
+  >
+    CloudWatch Details
+  </h3>
+  <div
+    className="gf-form-group"
+  >
+    <div
+      className="gf-form-inline"
+    >
+      <div
+        className="gf-form"
+      >
+        <Component
+          className="width-14"
+        >
+          Auth Provider
+        </Component>
+        <Select
+          allowCustomValue={false}
+          autoFocus={false}
+          backspaceRemovesValue={true}
+          className="width-30"
+          components={
+            Object {
+              "Group": [Function],
+              "IndicatorsContainer": [Function],
+              "MenuList": [Function],
+              "Option": [Function],
+              "SingleValue": [Function],
+            }
+          }
+          defaultValue="keys"
+          isClearable={false}
+          isDisabled={false}
+          isLoading={false}
+          isMulti={false}
+          isSearchable={true}
+          maxMenuHeight={300}
+          onChange={[Function]}
+          openMenuOnFocus={false}
+          options={
+            Array [
+              Object {
+                "label": "Access & secret key",
+                "value": "keys",
+              },
+              Object {
+                "label": "Credentials file",
+                "value": "credentials",
+              },
+              Object {
+                "label": "ARN",
+                "value": "arn",
+              },
+            ]
+          }
+          tabSelectsValue={true}
+          value={
+            Object {
+              "label": "Access & secret key",
+              "value": "keys",
+            }
+          }
+        />
+      </div>
+    </div>
+    <div>
+      <div
+        className="gf-form-inline"
+      >
+        <div
+          className="gf-form"
+        >
+          <Component
+            className="width-14"
+          >
+            Access Key ID
+          </Component>
+          <div
+            className="width-30"
+          >
+            <Input
+              className="width-30"
+              onChange={[Function]}
+              value=""
+            />
+          </div>
+        </div>
+      </div>
+      <div
+        className="gf-form-inline"
+      >
+        <div
+          className="gf-form"
+        >
+          <Component
+            className="width-14"
+          >
+            Secret Access Key
+          </Component>
+          <div
+            className="width-30"
+          >
+            <Input
+              className="width-30"
+              onChange={[Function]}
+              value=""
+            />
+          </div>
+        </div>
+      </div>
+    </div>
+    <div
+      className="gf-form-inline"
+    >
+      <div
+        className="gf-form"
+      >
+        <Component
+          className="width-14"
+          tooltip="Specify the region, such as for US West (Oregon) use \` us-west-2 \` as the region."
+        >
+          Default Region
+        </Component>
+        <Select
+          allowCustomValue={false}
+          autoFocus={false}
+          backspaceRemovesValue={true}
+          className="width-30"
+          components={
+            Object {
+              "Group": [Function],
+              "IndicatorsContainer": [Function],
+              "MenuList": [Function],
+              "Option": [Function],
+              "SingleValue": [Function],
+            }
+          }
+          defaultValue="us-east-2"
+          isClearable={false}
+          isDisabled={false}
+          isLoading={false}
+          isMulti={false}
+          isSearchable={true}
+          maxMenuHeight={300}
+          onChange={[Function]}
+          openMenuOnFocus={false}
+          options={Array []}
+          tabSelectsValue={true}
+        />
+      </div>
+    </div>
+    <div
+      className="gf-form-inline"
+    >
+      <div
+        className="gf-form"
+      >
+        <Component
+          className="width-14"
+          tooltip="Namespaces of Custom Metrics."
+        >
+          Custom Metrics
+        </Component>
+        <Input
+          className="width-30"
+          onChange={[Function]}
+          placeholder="Namespace1,Namespace2"
+          value=""
+        />
+      </div>
+    </div>
+  </div>
+</Fragment>
+`;
+
+exports[`Render should render component 1`] = `
+<Fragment>
+  <h3
+    className="page-heading"
+  >
+    CloudWatch Details
+  </h3>
+  <div
+    className="gf-form-group"
+  >
+    <div
+      className="gf-form-inline"
+    >
+      <div
+        className="gf-form"
+      >
+        <Component
+          className="width-14"
+        >
+          Auth Provider
+        </Component>
+        <Select
+          allowCustomValue={false}
+          autoFocus={false}
+          backspaceRemovesValue={true}
+          className="width-30"
+          components={
+            Object {
+              "Group": [Function],
+              "IndicatorsContainer": [Function],
+              "MenuList": [Function],
+              "Option": [Function],
+              "SingleValue": [Function],
+            }
+          }
+          defaultValue="keys"
+          isClearable={false}
+          isDisabled={false}
+          isLoading={false}
+          isMulti={false}
+          isSearchable={true}
+          maxMenuHeight={300}
+          onChange={[Function]}
+          openMenuOnFocus={false}
+          options={
+            Array [
+              Object {
+                "label": "Access & secret key",
+                "value": "keys",
+              },
+              Object {
+                "label": "Credentials file",
+                "value": "credentials",
+              },
+              Object {
+                "label": "ARN",
+                "value": "arn",
+              },
+            ]
+          }
+          tabSelectsValue={true}
+          value={
+            Object {
+              "label": "Access & secret key",
+              "value": "keys",
+            }
+          }
+        />
+      </div>
+    </div>
+    <div>
+      <div
+        className="gf-form-inline"
+      >
+        <div
+          className="gf-form"
+        >
+          <Component
+            className="width-14"
+          >
+            Access Key ID
+          </Component>
+          <div
+            className="width-30"
+          >
+            <Input
+              className="width-30"
+              onChange={[Function]}
+              value=""
+            />
+          </div>
+        </div>
+      </div>
+      <div
+        className="gf-form-inline"
+      >
+        <div
+          className="gf-form"
+        >
+          <Component
+            className="width-14"
+          >
+            Secret Access Key
+          </Component>
+          <div
+            className="width-30"
+          >
+            <Input
+              className="width-30"
+              onChange={[Function]}
+              value=""
+            />
+          </div>
+        </div>
+      </div>
+    </div>
+    <div
+      className="gf-form-inline"
+    >
+      <div
+        className="gf-form"
+      >
+        <Component
+          className="width-14"
+          tooltip="Specify the region, such as for US West (Oregon) use \` us-west-2 \` as the region."
+        >
+          Default Region
+        </Component>
+        <Select
+          allowCustomValue={false}
+          autoFocus={false}
+          backspaceRemovesValue={true}
+          className="width-30"
+          components={
+            Object {
+              "Group": [Function],
+              "IndicatorsContainer": [Function],
+              "MenuList": [Function],
+              "Option": [Function],
+              "SingleValue": [Function],
+            }
+          }
+          defaultValue="us-east-2"
+          isClearable={false}
+          isDisabled={false}
+          isLoading={false}
+          isMulti={false}
+          isSearchable={true}
+          maxMenuHeight={300}
+          onChange={[Function]}
+          openMenuOnFocus={false}
+          options={Array []}
+          tabSelectsValue={true}
+        />
+      </div>
+    </div>
+    <div
+      className="gf-form-inline"
+    >
+      <div
+        className="gf-form"
+      >
+        <Component
+          className="width-14"
+          tooltip="Namespaces of Custom Metrics."
+        >
+          Custom Metrics
+        </Component>
+        <Input
+          className="width-30"
+          onChange={[Function]}
+          placeholder="Namespace1,Namespace2"
+          value=""
+        />
+      </div>
+    </div>
+  </div>
+</Fragment>
+`;
+
+exports[`Render should should show access key and secret access key fields 1`] = `
+<Fragment>
+  <h3
+    className="page-heading"
+  >
+    CloudWatch Details
+  </h3>
+  <div
+    className="gf-form-group"
+  >
+    <div
+      className="gf-form-inline"
+    >
+      <div
+        className="gf-form"
+      >
+        <Component
+          className="width-14"
+        >
+          Auth Provider
+        </Component>
+        <Select
+          allowCustomValue={false}
+          autoFocus={false}
+          backspaceRemovesValue={true}
+          className="width-30"
+          components={
+            Object {
+              "Group": [Function],
+              "IndicatorsContainer": [Function],
+              "MenuList": [Function],
+              "Option": [Function],
+              "SingleValue": [Function],
+            }
+          }
+          defaultValue="keys"
+          isClearable={false}
+          isDisabled={false}
+          isLoading={false}
+          isMulti={false}
+          isSearchable={true}
+          maxMenuHeight={300}
+          onChange={[Function]}
+          openMenuOnFocus={false}
+          options={
+            Array [
+              Object {
+                "label": "Access & secret key",
+                "value": "keys",
+              },
+              Object {
+                "label": "Credentials file",
+                "value": "credentials",
+              },
+              Object {
+                "label": "ARN",
+                "value": "arn",
+              },
+            ]
+          }
+          tabSelectsValue={true}
+          value={
+            Object {
+              "label": "Access & secret key",
+              "value": "keys",
+            }
+          }
+        />
+      </div>
+    </div>
+    <div>
+      <div
+        className="gf-form-inline"
+      >
+        <div
+          className="gf-form"
+        >
+          <Component
+            className="width-14"
+          >
+            Access Key ID
+          </Component>
+          <div
+            className="width-30"
+          >
+            <Input
+              className="width-30"
+              onChange={[Function]}
+              value=""
+            />
+          </div>
+        </div>
+      </div>
+      <div
+        className="gf-form-inline"
+      >
+        <div
+          className="gf-form"
+        >
+          <Component
+            className="width-14"
+          >
+            Secret Access Key
+          </Component>
+          <div
+            className="width-30"
+          >
+            <Input
+              className="width-30"
+              onChange={[Function]}
+              value=""
+            />
+          </div>
+        </div>
+      </div>
+    </div>
+    <div
+      className="gf-form-inline"
+    >
+      <div
+        className="gf-form"
+      >
+        <Component
+          className="width-14"
+          tooltip="Specify the region, such as for US West (Oregon) use \` us-west-2 \` as the region."
+        >
+          Default Region
+        </Component>
+        <Select
+          allowCustomValue={false}
+          autoFocus={false}
+          backspaceRemovesValue={true}
+          className="width-30"
+          components={
+            Object {
+              "Group": [Function],
+              "IndicatorsContainer": [Function],
+              "MenuList": [Function],
+              "Option": [Function],
+              "SingleValue": [Function],
+            }
+          }
+          defaultValue="us-east-2"
+          isClearable={false}
+          isDisabled={false}
+          isLoading={false}
+          isMulti={false}
+          isSearchable={true}
+          maxMenuHeight={300}
+          onChange={[Function]}
+          openMenuOnFocus={false}
+          options={Array []}
+          tabSelectsValue={true}
+        />
+      </div>
+    </div>
+    <div
+      className="gf-form-inline"
+    >
+      <div
+        className="gf-form"
+      >
+        <Component
+          className="width-14"
+          tooltip="Namespaces of Custom Metrics."
+        >
+          Custom Metrics
+        </Component>
+        <Input
+          className="width-30"
+          onChange={[Function]}
+          placeholder="Namespace1,Namespace2"
+          value=""
+        />
+      </div>
+    </div>
+  </div>
+</Fragment>
+`;
+
+exports[`Render should should show arn role field 1`] = `
+<Fragment>
+  <h3
+    className="page-heading"
+  >
+    CloudWatch Details
+  </h3>
+  <div
+    className="gf-form-group"
+  >
+    <div
+      className="gf-form-inline"
+    >
+      <div
+        className="gf-form"
+      >
+        <Component
+          className="width-14"
+        >
+          Auth Provider
+        </Component>
+        <Select
+          allowCustomValue={false}
+          autoFocus={false}
+          backspaceRemovesValue={true}
+          className="width-30"
+          components={
+            Object {
+              "Group": [Function],
+              "IndicatorsContainer": [Function],
+              "MenuList": [Function],
+              "Option": [Function],
+              "SingleValue": [Function],
+            }
+          }
+          defaultValue="keys"
+          isClearable={false}
+          isDisabled={false}
+          isLoading={false}
+          isMulti={false}
+          isSearchable={true}
+          maxMenuHeight={300}
+          onChange={[Function]}
+          openMenuOnFocus={false}
+          options={
+            Array [
+              Object {
+                "label": "Access & secret key",
+                "value": "keys",
+              },
+              Object {
+                "label": "Credentials file",
+                "value": "credentials",
+              },
+              Object {
+                "label": "ARN",
+                "value": "arn",
+              },
+            ]
+          }
+          tabSelectsValue={true}
+          value={
+            Object {
+              "label": "Access & secret key",
+              "value": "keys",
+            }
+          }
+        />
+      </div>
+    </div>
+    <div>
+      <div
+        className="gf-form-inline"
+      >
+        <div
+          className="gf-form"
+        >
+          <Component
+            className="width-14"
+          >
+            Access Key ID
+          </Component>
+          <div
+            className="width-30"
+          >
+            <Input
+              className="width-30"
+              onChange={[Function]}
+              value=""
+            />
+          </div>
+        </div>
+      </div>
+      <div
+        className="gf-form-inline"
+      >
+        <div
+          className="gf-form"
+        >
+          <Component
+            className="width-14"
+          >
+            Secret Access Key
+          </Component>
+          <div
+            className="width-30"
+          >
+            <Input
+              className="width-30"
+              onChange={[Function]}
+              value=""
+            />
+          </div>
+        </div>
+      </div>
+    </div>
+    <div
+      className="gf-form-inline"
+    >
+      <div
+        className="gf-form"
+      >
+        <Component
+          className="width-14"
+          tooltip="Specify the region, such as for US West (Oregon) use \` us-west-2 \` as the region."
+        >
+          Default Region
+        </Component>
+        <Select
+          allowCustomValue={false}
+          autoFocus={false}
+          backspaceRemovesValue={true}
+          className="width-30"
+          components={
+            Object {
+              "Group": [Function],
+              "IndicatorsContainer": [Function],
+              "MenuList": [Function],
+              "Option": [Function],
+              "SingleValue": [Function],
+            }
+          }
+          defaultValue="us-east-2"
+          isClearable={false}
+          isDisabled={false}
+          isLoading={false}
+          isMulti={false}
+          isSearchable={true}
+          maxMenuHeight={300}
+          onChange={[Function]}
+          openMenuOnFocus={false}
+          options={Array []}
+          tabSelectsValue={true}
+        />
+      </div>
+    </div>
+    <div
+      className="gf-form-inline"
+    >
+      <div
+        className="gf-form"
+      >
+        <Component
+          className="width-14"
+          tooltip="Namespaces of Custom Metrics."
+        >
+          Custom Metrics
+        </Component>
+        <Input
+          className="width-30"
+          onChange={[Function]}
+          placeholder="Namespace1,Namespace2"
+          value=""
+        />
+      </div>
+    </div>
+  </div>
+</Fragment>
+`;
+
+exports[`Render should should show credentials profile name field 1`] = `
+<Fragment>
+  <h3
+    className="page-heading"
+  >
+    CloudWatch Details
+  </h3>
+  <div
+    className="gf-form-group"
+  >
+    <div
+      className="gf-form-inline"
+    >
+      <div
+        className="gf-form"
+      >
+        <Component
+          className="width-14"
+        >
+          Auth Provider
+        </Component>
+        <Select
+          allowCustomValue={false}
+          autoFocus={false}
+          backspaceRemovesValue={true}
+          className="width-30"
+          components={
+            Object {
+              "Group": [Function],
+              "IndicatorsContainer": [Function],
+              "MenuList": [Function],
+              "Option": [Function],
+              "SingleValue": [Function],
+            }
+          }
+          defaultValue="keys"
+          isClearable={false}
+          isDisabled={false}
+          isLoading={false}
+          isMulti={false}
+          isSearchable={true}
+          maxMenuHeight={300}
+          onChange={[Function]}
+          openMenuOnFocus={false}
+          options={
+            Array [
+              Object {
+                "label": "Access & secret key",
+                "value": "keys",
+              },
+              Object {
+                "label": "Credentials file",
+                "value": "credentials",
+              },
+              Object {
+                "label": "ARN",
+                "value": "arn",
+              },
+            ]
+          }
+          tabSelectsValue={true}
+          value={
+            Object {
+              "label": "Access & secret key",
+              "value": "keys",
+            }
+          }
+        />
+      </div>
+    </div>
+    <div>
+      <div
+        className="gf-form-inline"
+      >
+        <div
+          className="gf-form"
+        >
+          <Component
+            className="width-14"
+          >
+            Access Key ID
+          </Component>
+          <div
+            className="width-30"
+          >
+            <Input
+              className="width-30"
+              onChange={[Function]}
+              value=""
+            />
+          </div>
+        </div>
+      </div>
+      <div
+        className="gf-form-inline"
+      >
+        <div
+          className="gf-form"
+        >
+          <Component
+            className="width-14"
+          >
+            Secret Access Key
+          </Component>
+          <div
+            className="width-30"
+          >
+            <Input
+              className="width-30"
+              onChange={[Function]}
+              value=""
+            />
+          </div>
+        </div>
+      </div>
+    </div>
+    <div
+      className="gf-form-inline"
+    >
+      <div
+        className="gf-form"
+      >
+        <Component
+          className="width-14"
+          tooltip="Specify the region, such as for US West (Oregon) use \` us-west-2 \` as the region."
+        >
+          Default Region
+        </Component>
+        <Select
+          allowCustomValue={false}
+          autoFocus={false}
+          backspaceRemovesValue={true}
+          className="width-30"
+          components={
+            Object {
+              "Group": [Function],
+              "IndicatorsContainer": [Function],
+              "MenuList": [Function],
+              "Option": [Function],
+              "SingleValue": [Function],
+            }
+          }
+          defaultValue="us-east-2"
+          isClearable={false}
+          isDisabled={false}
+          isLoading={false}
+          isMulti={false}
+          isSearchable={true}
+          maxMenuHeight={300}
+          onChange={[Function]}
+          openMenuOnFocus={false}
+          options={Array []}
+          tabSelectsValue={true}
+        />
+      </div>
+    </div>
+    <div
+      className="gf-form-inline"
+    >
+      <div
+        className="gf-form"
+      >
+        <Component
+          className="width-14"
+          tooltip="Namespaces of Custom Metrics."
+        >
+          Custom Metrics
+        </Component>
+        <Input
+          className="width-30"
+          onChange={[Function]}
+          placeholder="Namespace1,Namespace2"
+          value=""
+        />
+      </div>
+    </div>
+  </div>
+</Fragment>
+`;

public/app/plugins/datasource/cloudwatch/components/__snapshots__/QueryEditor.test.tsx.snap

@@ -0,0 +1,396 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`QueryEditor should render component 1`] = `
+Array [
+  <div
+    className="gf-form-inline"
+  >
+    <label
+      className="gf-form-label width-8 query-keyword"
+    >
+      Region
+    </label>
+    <div
+      className="gf-form"
+      onClick={[Function]}
+    >
+      <a
+        className="gf-form-label query-part"
+      >
+        us-east-1
+      </a>
+    </div>
+    <div
+      className="gf-form gf-form--grow"
+    >
+      <div
+        className="gf-form-label gf-form-label--grow"
+      />
+    </div>
+  </div>,
+  <div
+    className="gf-form-inline"
+  >
+    <label
+      className="gf-form-label width-8 query-keyword"
+    >
+      Namespace
+    </label>
+    <div
+      className="gf-form"
+      onClick={[Function]}
+    >
+      <a
+        className="gf-form-label query-part"
+      >
+        ec2
+      </a>
+    </div>
+    <div
+      className="gf-form gf-form--grow"
+    >
+      <div
+        className="gf-form-label gf-form-label--grow"
+      />
+    </div>
+  </div>,
+  <div
+    className="gf-form-inline"
+  >
+    <label
+      className="gf-form-label width-8 query-keyword"
+    >
+      Metric Name
+    </label>
+    <div
+      className="gf-form"
+      onClick={[Function]}
+    >
+      <a
+        className="gf-form-label query-part"
+      >
+        CPUUtilization
+      </a>
+    </div>
+    <div
+      className="gf-form gf-form--grow"
+    >
+      <div
+        className="gf-form-label gf-form-label--grow"
+      />
+    </div>
+  </div>,
+  <div
+    className="gf-form-inline"
+  >
+    <label
+      className="gf-form-label width-8 query-keyword"
+    >
+      Stats
+    </label>
+    <div
+      className="gf-form"
+      onClick={[Function]}
+    >
+      <a
+        className="gf-form-label query-part"
+      >
+        Average
+      </a>
+    </div>
+    <div
+      className="gf-form"
+      onClick={[Function]}
+    >
+      <a
+        className="gf-form-label query-part"
+      >
+        <i
+          className="fa fa-plus"
+        />
+      </a>
+    </div>
+    <div
+      className="gf-form gf-form--grow"
+    >
+      <div
+        className="gf-form-label gf-form-label--grow"
+      />
+    </div>
+  </div>,
+  <div
+    className="gf-form-inline"
+  >
+    <label
+      className="gf-form-label width-8 query-keyword"
+    >
+      Dimensions
+    </label>
+    <div
+      className="gf-form"
+      onClick={[Function]}
+    >
+      <a
+        className="gf-form-label query-part"
+      >
+        somekey
+      </a>
+    </div>
+    <label
+      className="gf-form-label query-segment-operator"
+    >
+      =
+    </label>
+    <div
+      className="gf-form"
+      onClick={[Function]}
+    >
+      <a
+        className="gf-form-label query-part"
+      >
+        somevalue
+      </a>
+    </div>
+    <div
+      className="gf-form"
+      onClick={[Function]}
+    >
+      <a
+        className="gf-form-label query-part"
+      >
+        <i
+          className="fa fa-plus"
+        />
+      </a>
+    </div>
+    <div
+      className="gf-form gf-form--grow"
+    >
+      <div
+        className="gf-form-label gf-form-label--grow"
+      />
+    </div>
+  </div>,
+  <div
+    className="gf-form-inline"
+  >
+    <div
+      className="gf-form"
+    >
+      <label
+        className="gf-form-label width-8 query-keyword"
+      >
+        Id
+        <div
+          className="gf-form-help-icon gf-form-help-icon--right-normal"
+          onMouseEnter={[Function]}
+          onMouseLeave={[Function]}
+        >
+          <i
+            className="fa fa-info-circle"
+          />
+        </div>
+      </label>
+      <div
+        style={
+          Object {
+            "flexGrow": 1,
+          }
+        }
+      >
+        <input
+          className="gf-form-input gf-form-input width-8"
+          onBlur={[Function]}
+          onChange={[Function]}
+          value=""
+        />
+      </div>
+    </div>
+    <div
+      className="gf-form gf-form--grow"
+    >
+      <label
+        className="gf-form-label width-8 query-keyword"
+      >
+        Expression
+        <div
+          className="gf-form-help-icon gf-form-help-icon--right-normal"
+          onMouseEnter={[Function]}
+          onMouseLeave={[Function]}
+        >
+          <i
+            className="fa fa-info-circle"
+          />
+        </div>
+      </label>
+      <div
+        style={
+          Object {
+            "flexGrow": 1,
+          }
+        }
+      >
+        <input
+          className="gf-form-input gf-form-input"
+          onBlur={[MockFunction]}
+          onChange={[Function]}
+          value=""
+        />
+      </div>
+    </div>
+  </div>,
+  <div
+    className="gf-form-inline"
+  >
+    <div
+      className="gf-form"
+    >
+      <label
+        className="gf-form-label width-8 query-keyword"
+      >
+        Min Period
+        <div
+          className="gf-form-help-icon gf-form-help-icon--right-normal"
+          onMouseEnter={[Function]}
+          onMouseLeave={[Function]}
+        >
+          <i
+            className="fa fa-info-circle"
+          />
+        </div>
+      </label>
+      <div
+        style={
+          Object {
+            "flexGrow": 1,
+          }
+        }
+      >
+        <input
+          className="gf-form-input gf-form-input width-8"
+          onBlur={[MockFunction]}
+          onChange={[Function]}
+          placeholder="auto"
+          value=""
+        />
+      </div>
+    </div>
+    <div
+      className="gf-form"
+    >
+      <label
+        className="gf-form-label width-8 query-keyword"
+      >
+        Alias
+        <div
+          className="gf-form-help-icon gf-form-help-icon--right-normal"
+          onMouseEnter={[Function]}
+          onMouseLeave={[Function]}
+        >
+          <i
+            className="fa fa-info-circle"
+          />
+        </div>
+      </label>
+      <div
+        style={
+          Object {
+            "flexGrow": 1,
+          }
+        }
+      >
+        <input
+          className="gf-form-input gf-form-input width-16"
+          onChange={[Function]}
+          type="text"
+          value=""
+        />
+      </div>
+      <div
+        className="gf-form-switch-container-react"
+      >
+        <label
+          className="gf-form gf-form-switch-container "
+          htmlFor="1"
+        >
+          <div
+            className="gf-form-label query-keyword  pointer"
+          >
+            HighRes
+          </div>
+          <div
+            className="gf-form-switch  "
+          >
+            <input
+              checked={false}
+              id="1"
+              onChange={[Function]}
+              type="checkbox"
+            />
+            <span
+              className="gf-form-switch__slider"
+            />
+          </div>
+        </label>
+      </div>
+      <div
+        className="gf-form-switch-container-react"
+      >
+        <label
+          className="gf-form gf-form-switch-container "
+          htmlFor="2"
+        >
+          <div
+            className="gf-form-label query-keyword  pointer"
+          >
+            Match Exact
+            <div
+              className="gf-form-help-icon gf-form-help-icon--right-normal"
+              onMouseEnter={[Function]}
+              onMouseLeave={[Function]}
+            >
+              <i
+                className="fa fa-info-circle"
+              />
+            </div>
+          </div>
+          <div
+            className="gf-form-switch  "
+          >
+            <input
+              checked={true}
+              id="2"
+              onChange={[Function]}
+              type="checkbox"
+            />
+            <span
+              className="gf-form-switch__slider"
+            />
+          </div>
+        </label>
+      </div>
+      <label
+        className="gf-form-label"
+      >
+        <a
+          onClick={[Function]}
+        >
+          <i
+            className="fa fa-caret-right"
+          />
+           
+          Show
+           Query Preview
+        </a>
+      </label>
+    </div>
+    <div
+      className="gf-form gf-form--grow"
+    >
+      <div
+        className="gf-form-label gf-form-label--grow"
+      />
+    </div>
+  </div>,
+]
+`;

public/app/plugins/datasource/cloudwatch/components/__snapshots__/Stats.test.tsx.snap

@@ -0,0 +1,38 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Stats should render component 1`] = `
+Array [
+  <div
+    className="gf-form"
+    onClick={[Function]}
+  >
+    <a
+      className="gf-form-label query-part"
+    >
+      Average
+    </a>
+  </div>,
+  <div
+    className="gf-form"
+    onClick={[Function]}
+  >
+    <a
+      className="gf-form-label query-part"
+    >
+      Minimum
+    </a>
+  </div>,
+  <div
+    className="gf-form"
+    onClick={[Function]}
+  >
+    <a
+      className="gf-form-label query-part"
+    >
+      <i
+        className="fa fa-plus"
+      />
+    </a>
+  </div>,
+]
+`;

public/app/plugins/datasource/cloudwatch/components/index.ts

@@ -0,0 +1,4 @@
+export { Stats } from './Stats';
+export { Dimensions } from './Dimensions';
+export { QueryInlineField, QueryField } from './Forms';
+export { Alias } from './Alias';

public/app/plugins/datasource/cloudwatch/config_ctrl.ts

@@ -1,89 +0,0 @@
-import _ from 'lodash';
-import DatasourceSrv from 'app/features/plugins/datasource_srv';
-import CloudWatchDatasource from './datasource';
-export class CloudWatchConfigCtrl {
-  static templateUrl = 'partials/config.html';
-  current: any;
-  datasourceSrv: any;
-
-  accessKeyExist = false;
-  secretKeyExist = false;
-
-  /** @ngInject */
-  constructor($scope: any, datasourceSrv: DatasourceSrv) {
-    this.current.jsonData.timeField = this.current.jsonData.timeField || '@timestamp';
-    this.current.jsonData.authType = this.current.jsonData.authType || 'credentials';
-
-    this.accessKeyExist = this.current.secureJsonFields.accessKey;
-    this.secretKeyExist = this.current.secureJsonFields.secretKey;
-    this.datasourceSrv = datasourceSrv;
-    this.getRegions();
-  }
-
-  resetAccessKey() {
-    this.accessKeyExist = false;
-  }
-
-  resetSecretKey() {
-    this.secretKeyExist = false;
-  }
-
-  authTypes = [
-    { name: 'Access & secret key', value: 'keys' },
-    { name: 'Credentials file', value: 'credentials' },
-    { name: 'ARN', value: 'arn' },
-  ];
-
-  indexPatternTypes: any = [
-    { name: 'No pattern', value: undefined },
-    { name: 'Hourly', value: 'Hourly', example: '[logstash-]YYYY.MM.DD.HH' },
-    { name: 'Daily', value: 'Daily', example: '[logstash-]YYYY.MM.DD' },
-    { name: 'Weekly', value: 'Weekly', example: '[logstash-]GGGG.WW' },
-    { name: 'Monthly', value: 'Monthly', example: '[logstash-]YYYY.MM' },
-    { name: 'Yearly', value: 'Yearly', example: '[logstash-]YYYY' },
-  ];
-
-  regions = [
-    'ap-east-1',
-    'ap-northeast-1',
-    'ap-northeast-2',
-    'ap-northeast-3',
-    'ap-south-1',
-    'ap-southeast-1',
-    'ap-southeast-2',
-    'ca-central-1',
-    'cn-north-1',
-    'cn-northwest-1',
-    'eu-central-1',
-    'eu-north-1',
-    'eu-west-1',
-    'eu-west-2',
-    'eu-west-3',
-    'me-south-1',
-    'sa-east-1',
-    'us-east-1',
-    'us-east-2',
-    'us-gov-east-1',
-    'us-gov-west-1',
-    'us-iso-east-1',
-    'us-isob-east-1',
-    'us-west-1',
-    'us-west-2',
-  ];
-
-  getRegions() {
-    this.datasourceSrv
-      .loadDatasource(this.current.name)
-      .then((ds: CloudWatchDatasource) => {
-        return ds.getRegions();
-      })
-      .then(
-        (regions: any) => {
-          this.regions = _.map(regions, 'value');
-        },
-        (err: any) => {
-          console.error('failed to get latest regions');
-        }
-      );
-  }
-}

public/app/plugins/datasource/cloudwatch/dashboards/Lambda.json

@@ -0,0 +1,545 @@
+{
+  "__inputs": [
+    {
+      "name": "DS_CLOUDWATCH",
+      "label": "CloudWatch",
+      "description": "",
+      "type": "datasource",
+      "pluginId": "cloudwatch",
+      "pluginName": "CloudWatch"
+    }
+  ],
+  "__requires": [
+    {
+      "type": "datasource",
+      "id": "cloudwatch",
+      "name": "CloudWatch",
+      "version": "1.0.0"
+    },
+    {
+      "type": "grafana",
+      "id": "grafana",
+      "name": "Grafana",
+      "version": "6.6.0-pre"
+    },
+    {
+      "type": "panel",
+      "id": "graph",
+      "name": "Graph",
+      "version": ""
+    }
+  ],
+  "annotations": {
+    "list": [
+      {
+        "builtIn": 1,
+        "datasource": "-- Grafana --",
+        "enable": true,
+        "hide": true,
+        "iconColor": "rgba(0, 211, 255, 1)",
+        "name": "Annotations & Alerts",
+        "type": "dashboard"
+      }
+    ]
+  },
+  "editable": true,
+  "gnetId": null,
+  "graphTooltip": 0,
+  "id": null,
+  "iteration": 1573631164529,
+  "links": [],
+  "panels": [
+    {
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
+      "datasource": "$datasource",
+      "fill": 1,
+      "fillGradient": 0,
+      "gridPos": {
+        "h": 9,
+        "w": 12,
+        "x": 0,
+        "y": 0
+      },
+      "hiddenSeries": false,
+      "id": 2,
+      "legend": {
+        "alignAsTable": false,
+        "avg": false,
+        "current": false,
+        "max": false,
+        "min": false,
+        "show": true,
+        "total": false,
+        "values": false
+      },
+      "lines": true,
+      "linewidth": 1,
+      "nullPointMode": "null",
+      "options": {
+        "dataLinks": []
+      },
+      "percentage": false,
+      "pointradius": 2,
+      "points": false,
+      "renderer": "flot",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
+      "targets": [
+        {
+          "dimensions": {
+            "FunctionName": "$function"
+          },
+          "expression": "",
+          "highResolution": false,
+          "matchExact": true,
+          "metricName": "Invocations",
+          "namespace": "AWS/Lambda",
+          "refId": "A",
+          "region": "$region",
+          "statistics": ["$statistic"]
+        }
+      ],
+      "thresholds": [],
+      "timeFrom": null,
+      "timeRegions": [],
+      "timeShift": null,
+      "title": "Invocations $statistic",
+      "tooltip": {
+        "shared": true,
+        "sort": 0,
+        "value_type": "individual"
+      },
+      "type": "graph",
+      "xaxis": {
+        "buckets": null,
+        "mode": "time",
+        "name": null,
+        "show": true,
+        "values": []
+      },
+      "yaxes": [
+        {
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        },
+        {
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        }
+      ],
+      "yaxis": {
+        "align": false,
+        "alignLevel": null
+      }
+    },
+    {
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
+      "datasource": "$datasource",
+      "fill": 1,
+      "fillGradient": 0,
+      "gridPos": {
+        "h": 9,
+        "w": 12,
+        "x": 12,
+        "y": 0
+      },
+      "hiddenSeries": false,
+      "id": 3,
+      "legend": {
+        "alignAsTable": false,
+        "avg": false,
+        "current": false,
+        "max": false,
+        "min": false,
+        "show": true,
+        "total": false,
+        "values": false
+      },
+      "lines": true,
+      "linewidth": 1,
+      "nullPointMode": "null",
+      "options": {
+        "dataLinks": []
+      },
+      "percentage": false,
+      "pointradius": 2,
+      "points": false,
+      "renderer": "flot",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
+      "targets": [
+        {
+          "dimensions": {
+            "FunctionName": "$function"
+          },
+          "expression": "",
+          "highResolution": false,
+          "matchExact": true,
+          "metricName": "Duration",
+          "namespace": "AWS/Lambda",
+          "refId": "A",
+          "region": "$region",
+          "statistics": ["Average"]
+        }
+      ],
+      "thresholds": [],
+      "timeFrom": null,
+      "timeRegions": [],
+      "timeShift": null,
+      "title": "Duration Average",
+      "tooltip": {
+        "shared": true,
+        "sort": 0,
+        "value_type": "individual"
+      },
+      "type": "graph",
+      "xaxis": {
+        "buckets": null,
+        "mode": "time",
+        "name": null,
+        "show": true,
+        "values": []
+      },
+      "yaxes": [
+        {
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        },
+        {
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        }
+      ],
+      "yaxis": {
+        "align": false,
+        "alignLevel": null
+      }
+    },
+    {
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
+      "datasource": "$datasource",
+      "fill": 1,
+      "fillGradient": 0,
+      "gridPos": {
+        "h": 9,
+        "w": 12,
+        "x": 0,
+        "y": 9
+      },
+      "hiddenSeries": false,
+      "id": 4,
+      "legend": {
+        "alignAsTable": false,
+        "avg": false,
+        "current": false,
+        "max": false,
+        "min": false,
+        "show": true,
+        "total": false,
+        "values": false
+      },
+      "lines": true,
+      "linewidth": 1,
+      "nullPointMode": "null",
+      "options": {
+        "dataLinks": []
+      },
+      "percentage": false,
+      "pointradius": 2,
+      "points": false,
+      "renderer": "flot",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
+      "targets": [
+        {
+          "dimensions": {
+            "FunctionName": "$function"
+          },
+          "expression": "",
+          "highResolution": false,
+          "matchExact": true,
+          "metricName": "Errors",
+          "namespace": "AWS/Lambda",
+          "refId": "A",
+          "region": "$region",
+          "statistics": ["Average"]
+        }
+      ],
+      "thresholds": [],
+      "timeFrom": null,
+      "timeRegions": [],
+      "timeShift": null,
+      "title": "Errors $statistic",
+      "tooltip": {
+        "shared": true,
+        "sort": 0,
+        "value_type": "individual"
+      },
+      "type": "graph",
+      "xaxis": {
+        "buckets": null,
+        "mode": "time",
+        "name": null,
+        "show": true,
+        "values": []
+      },
+      "yaxes": [
+        {
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        },
+        {
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        }
+      ],
+      "yaxis": {
+        "align": false,
+        "alignLevel": null
+      }
+    },
+    {
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
+      "datasource": "$datasource",
+      "fill": 1,
+      "fillGradient": 0,
+      "gridPos": {
+        "h": 9,
+        "w": 12,
+        "x": 12,
+        "y": 9
+      },
+      "hiddenSeries": false,
+      "id": 5,
+      "legend": {
+        "alignAsTable": false,
+        "avg": false,
+        "current": false,
+        "max": false,
+        "min": false,
+        "show": true,
+        "total": false,
+        "values": false
+      },
+      "lines": true,
+      "linewidth": 1,
+      "nullPointMode": "null",
+      "options": {
+        "dataLinks": []
+      },
+      "percentage": false,
+      "pointradius": 2,
+      "points": false,
+      "renderer": "flot",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
+      "targets": [
+        {
+          "dimensions": {
+            "FunctionName": "$function"
+          },
+          "expression": "",
+          "highResolution": false,
+          "matchExact": true,
+          "metricName": "Throttles",
+          "namespace": "AWS/Lambda",
+          "refId": "A",
+          "region": "$region",
+          "statistics": ["Average"]
+        }
+      ],
+      "thresholds": [],
+      "timeFrom": null,
+      "timeRegions": [],
+      "timeShift": null,
+      "title": "Throttles $statistic",
+      "tooltip": {
+        "shared": true,
+        "sort": 0,
+        "value_type": "individual"
+      },
+      "type": "graph",
+      "xaxis": {
+        "buckets": null,
+        "mode": "time",
+        "name": null,
+        "show": true,
+        "values": []
+      },
+      "yaxes": [
+        {
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        },
+        {
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        }
+      ],
+      "yaxis": {
+        "align": false,
+        "alignLevel": null
+      }
+    }
+  ],
+  "schemaVersion": 21,
+  "style": "dark",
+  "tags": [],
+  "templating": {
+    "list": [
+      {
+        "current": {
+          "selected": true,
+          "text": "CloudWatch",
+          "value": "CloudWatch"
+        },
+        "hide": 0,
+        "includeAll": false,
+        "label": "Datasource",
+        "multi": false,
+        "name": "datasource",
+        "options": [],
+        "query": "cloudwatch",
+        "refresh": 1,
+        "regex": "",
+        "skipUrlSync": false,
+        "type": "datasource"
+      },
+      {
+        "allValue": null,
+        "current": {
+          "text": "default",
+          "value": "default"
+        },
+        "datasource": "${DS_CLOUDWATCH}",
+        "definition": "regions()",
+        "hide": 0,
+        "includeAll": false,
+        "label": "Region",
+        "multi": false,
+        "name": "region",
+        "options": [],
+        "query": "regions()",
+        "refresh": 1,
+        "regex": "",
+        "skipUrlSync": false,
+        "sort": 0,
+        "tagValuesQuery": "",
+        "tags": [],
+        "tagsQuery": "",
+        "type": "query",
+        "useTags": false
+      },
+      {
+        "allValue": null,
+        "current": {},
+        "datasource": "${DS_CLOUDWATCH}",
+        "definition": "statistics()",
+        "hide": 0,
+        "includeAll": false,
+        "label": "Statistic",
+        "multi": false,
+        "name": "statistic",
+        "options": [],
+        "query": "statistics()",
+        "refresh": 1,
+        "regex": "",
+        "skipUrlSync": false,
+        "sort": 0,
+        "tagValuesQuery": "",
+        "tags": [],
+        "tagsQuery": "",
+        "type": "query",
+        "useTags": false
+      },
+      {
+        "allValue": null,
+        "current": {
+          "text": "*",
+          "value": ["*"]
+        },
+        "datasource": "${DS_CLOUDWATCH}",
+        "definition": "dimension_values($region, AWS/Lambda, , FunctionName)",
+        "hide": 0,
+        "includeAll": true,
+        "label": "FunctionName",
+        "multi": true,
+        "name": "function",
+        "options": [],
+        "query": "dimension_values($region, AWS/Lambda, , FunctionName)",
+        "refresh": 1,
+        "regex": "",
+        "skipUrlSync": false,
+        "sort": 0,
+        "tagValuesQuery": "",
+        "tags": [],
+        "tagsQuery": "",
+        "type": "query",
+        "useTags": false
+      }
+    ]
+  },
+  "time": {
+    "from": "now-6h",
+    "to": "now"
+  },
+  "timepicker": {
+    "refresh_intervals": ["5s", "10s", "30s", "1m", "5m", "15m", "30m", "1h", "2h", "1d"]
+  },
+  "timezone": "",
+  "title": "Lambda",
+  "uid": "VgpJGb1Zg",
+  "version": 6
+}

public/app/plugins/datasource/cloudwatch/datasource.ts

@@ -1,5 +1,11 @@
+import React from 'react';
 import angular, { IQService } from 'angular';
 import _ from 'lodash';
+import { notifyApp } from 'app/core/actions';
+import { createErrorNotification } from 'app/core/copy/appNotification';
+import { AppNotificationTimeout } from 'app/types';
+import { store } from 'app/store/store';
+import kbn from 'app/core/utils/kbn';
 import {
   dateMath,
   ScopedVars,
@@ -9,22 +15,39 @@ import {
   DataQueryRequest,
   DataSourceInstanceSettings,
 } from '@grafana/data';
-import kbn from 'app/core/utils/kbn';
-import { CloudWatchQuery } from './types';
 import { BackendSrv } from 'app/core/services/backend_srv';
 import { TemplateSrv } from 'app/features/templating/template_srv';
 import { TimeSrv } from 'app/features/dashboard/services/TimeSrv';
-// import * as moment from 'moment';
+import { ThrottlingErrorMessage } from './components/ThrottlingErrorMessage';
+import memoizedDebounce from './memoizedDebounce';
+import { CloudWatchQuery, CloudWatchJsonData } from './types';
 
-export default class CloudWatchDatasource extends DataSourceApi<CloudWatchQuery> {
+const displayAlert = (datasourceName: string, region: string) =>
+  store.dispatch(
+    notifyApp(
+      createErrorNotification(
+        `CloudWatch request limit reached in ${region} for data source ${datasourceName}`,
+        '',
+        React.createElement(ThrottlingErrorMessage, { region }, null)
+      )
+    )
+  );
+
+const displayCustomError = (title: string, message: string) =>
+  store.dispatch(notifyApp(createErrorNotification(title, message)));
+
+export default class CloudWatchDatasource extends DataSourceApi<CloudWatchQuery, CloudWatchJsonData> {
   type: any;
   proxyUrl: any;
   defaultRegion: any;
   standardStatistics: any;
+  datasourceName: string;
+  debouncedAlert: (datasourceName: string, region: string) => void;
+  debouncedCustomAlert: (title: string, message: string) => void;
 
   /** @ngInject */
   constructor(
-    private instanceSettings: DataSourceInstanceSettings,
+    instanceSettings: DataSourceInstanceSettings<CloudWatchJsonData>,
     private $q: IQService,
     private backendSrv: BackendSrv,
     private templateSrv: TemplateSrv,
@@ -34,13 +57,14 @@ export default class CloudWatchDatasource extends DataSourceApi<CloudWatchQuery>
     this.type = 'cloudwatch';
     this.proxyUrl = instanceSettings.url;
     this.defaultRegion = instanceSettings.jsonData.defaultRegion;
-    this.instanceSettings = instanceSettings;
+    this.datasourceName = instanceSettings.name;
     this.standardStatistics = ['Average', 'Maximum', 'Minimum', 'Sum', 'SampleCount'];
+    this.debouncedAlert = memoizedDebounce(displayAlert, AppNotificationTimeout.Error);
+    this.debouncedCustomAlert = memoizedDebounce(displayCustomError, AppNotificationTimeout.Error);
   }
 
   query(options: DataQueryRequest<CloudWatchQuery>) {
     options = angular.copy(options);
-    options.targets = this.expandTemplateVariable(options.targets, options.scopedVars, this.templateSrv);
 
     const queries = _.filter(options.targets, item => {
       return (
@@ -49,16 +73,14 @@ export default class CloudWatchDatasource extends DataSourceApi<CloudWatchQuery>
           item.expression.length > 0)
       );
     }).map(item => {
-      item.region = this.templateSrv.replace(this.getActualRegion(item.region), options.scopedVars);
-      item.namespace = this.templateSrv.replace(item.namespace, options.scopedVars);
-      item.metricName = this.templateSrv.replace(item.metricName, options.scopedVars);
+      item.region = this.replace(this.getActualRegion(item.region), options.scopedVars, true, 'region');
+      item.namespace = this.replace(item.namespace, options.scopedVars, true, 'namespace');
+      item.metricName = this.replace(item.metricName, options.scopedVars, true, 'metric name');
       item.dimensions = this.convertDimensionFormat(item.dimensions, options.scopedVars);
-      item.statistics = item.statistics.map(s => {
-        return this.templateSrv.replace(s, options.scopedVars);
-      });
+      item.statistics = item.statistics.map(stat => this.replace(stat, options.scopedVars, true, 'statistics'));
       item.period = String(this.getPeriod(item, options)); // use string format for period in graph query, and alerting
-      item.id = this.templateSrv.replace(item.id, options.scopedVars);
-      item.expression = this.templateSrv.replace(item.expression, options.scopedVars);
+      item.id = this.replace(item.id, options.scopedVars, true, 'id');
+      item.expression = this.replace(item.expression, options.scopedVars, true, 'expression');
 
       // valid ExtendedStatistics is like p90.00, check the pattern
       const hasInvalidStatistics = item.statistics.some(s => {
@@ -79,7 +101,7 @@ export default class CloudWatchDatasource extends DataSourceApi<CloudWatchQuery>
           refId: item.refId,
           intervalMs: options.intervalMs,
           maxDataPoints: options.maxDataPoints,
-          datasourceId: this.instanceSettings.id,
+          datasourceId: this.id,
           type: 'timeSeriesQuery',
         },
         item
@@ -102,6 +124,10 @@ export default class CloudWatchDatasource extends DataSourceApi<CloudWatchQuery>
     return this.performTimeSeriesQuery(request, options.range);
   }
 
+  get variables() {
+    return this.templateSrv.variables.map(v => `$${v.name}`);
+  }
+
   getPeriod(target: any, options: any, now?: number) {
     const start = this.convertToCloudWatchTime(options.range.from, false);
     const end = this.convertToCloudWatchTime(options.range.to, true);
@@ -149,30 +175,50 @@ export default class CloudWatchDatasource extends DataSourceApi<CloudWatchQuery>
   }
 
   buildCloudwatchConsoleUrl(
-    { region, namespace, metricName, dimensions, statistics, period }: CloudWatchQuery,
+    { region, namespace, metricName, dimensions, statistics, period, expression }: CloudWatchQuery,
     start: string,
     end: string,
-    title: string
+    title: string,
+    gmdMeta: Array<{ Expression: string }>
   ) {
-    const conf = {
+    region = this.getActualRegion(region);
+    let conf = {
       view: 'timeSeries',
       stacked: false,
       title,
       start,
       end,
       region,
-      metrics: [
-        ...statistics.map(stat => [
-          namespace,
-          metricName,
-          ...Object.entries(dimensions).reduce((acc, [key, value]) => [...acc, key, value], []),
-          {
-            stat,
-            period,
-          },
-        ]),
-      ],
-    };
+    } as any;
+
+    const isSearchExpression =
+      gmdMeta && gmdMeta.length && gmdMeta.every(({ Expression: expression }) => /SEARCH().*/.test(expression));
+    const isMathExpression = !isSearchExpression && expression;
+
+    if (isMathExpression) {
+      return '';
+    }
+
+    if (isSearchExpression) {
+      const metrics: any =
+        gmdMeta && gmdMeta.length ? gmdMeta.map(({ Expression: expression }) => ({ expression })) : [{ expression }];
+      conf = { ...conf, metrics };
+    } else {
+      conf = {
+        ...conf,
+        metrics: [
+          ...statistics.map(stat => [
+            namespace,
+            metricName,
+            ...Object.entries(dimensions).reduce((acc, [key, value]) => [...acc, key, value[0]], []),
+            {
+              stat,
+              period,
+            },
+          ]),
+        ],
+      };
+    }
 
     return `https://${region}.console.aws.amazon.com/cloudwatch/deeplink.js?region=${region}#metricsV2:graph=${encodeURIComponent(
       JSON.stringify(conf)
@@ -180,44 +226,70 @@ export default class CloudWatchDatasource extends DataSourceApi<CloudWatchQuery>
   }
 
   performTimeSeriesQuery(request: any, { from, to }: TimeRange) {
-    return this.awsRequest('/api/tsdb/query', request).then((res: any) => {
-      if (!res.results) {
-        return { data: [] };
-      }
-      const dataFrames = Object.values(request.queries).reduce((acc: any, queryRequest: any) => {
-        const queryResult = res.results[queryRequest.refId];
-        if (!queryResult) {
-          return acc;
+    return this.awsRequest('/api/tsdb/query', request)
+      .then((res: any) => {
+        if (!res.results) {
+          return { data: [] };
+        }
+        return Object.values(request.queries).reduce(
+          ({ data, error }: any, queryRequest: any) => {
+            const queryResult = res.results[queryRequest.refId];
+            if (!queryResult) {
+              return { data, error };
+            }
+
+            const link = this.buildCloudwatchConsoleUrl(
+              queryRequest,
+              from.toISOString(),
+              to.toISOString(),
+              queryRequest.refId,
+              queryResult.meta.gmdMeta
+            );
+
+            return {
+              error: error || queryResult.error ? { message: queryResult.error } : null,
+              data: [
+                ...data,
+                ...queryResult.series.map(({ name, points }: any) => {
+                  const dataFrame = toDataFrame({
+                    target: name,
+                    datapoints: points,
+                    refId: queryRequest.refId,
+                    meta: queryResult.meta,
+                  });
+                  if (link) {
+                    for (const field of dataFrame.fields) {
+                      field.config.links = [
+                        {
+                          url: link,
+                          title: 'View in CloudWatch console',
+                          targetBlank: true,
+                        },
+                      ];
+                    }
+                  }
+                  return dataFrame;
+                }),
+              ],
+            };
+          },
+          { data: [], error: null }
+        );
+      })
+      .catch((err: any = { data: { error: '' } }) => {
+        if (/^Throttling:.*/.test(err.data.message)) {
+          const failedRedIds = Object.keys(err.data.results);
+          const regionsAffected = Object.values(request.queries).reduce(
+            (res: string[], { refId, region }: CloudWatchQuery) =>
+              !failedRedIds.includes(refId) || res.includes(region) ? res : [...res, region],
+            []
+          ) as string[];
+
+          regionsAffected.forEach(region => this.debouncedAlert(this.datasourceName, this.getActualRegion(region)));
         }
 
-        const link = this.buildCloudwatchConsoleUrl(
-          queryRequest,
-          from.toISOString(),
-          to.toISOString(),
-          `query${queryRequest.refId}`
-        );
-
-        return [
-          ...acc,
-          ...queryResult.series.map(({ name, points, meta }: any) => {
-            const series = { target: name, datapoints: points };
-            const dataFrame = toDataFrame(meta && meta.unit ? { ...series, unit: meta.unit } : series);
-            for (const field of dataFrame.fields) {
-              field.config.links = [
-                {
-                  url: link,
-                  title: 'View in CloudWatch console',
-                  targetBlank: true,
-                },
-              ];
-            }
-            return dataFrame;
-          }),
-        ];
-      }, []);
-
-      return { data: dataFrames };
-    });
+        throw err;
+      });
   }
 
   transformSuggestDataFromTable(suggestData: any) {
@@ -225,6 +297,7 @@ export default class CloudWatchDatasource extends DataSourceApi<CloudWatchQuery>
       return {
         text: v[0],
         value: v[1],
+        label: v[1],
       };
     });
   }
@@ -240,7 +313,7 @@ export default class CloudWatchDatasource extends DataSourceApi<CloudWatchQuery>
             refId: 'metricFindQuery',
             intervalMs: 1, // dummy
             maxDataPoints: 1, // dummy
-            datasourceId: this.instanceSettings.id,
+            datasourceId: this.id,
             type: 'metricFindQuery',
             subtype: subtype,
           },
@@ -260,34 +333,48 @@ export default class CloudWatchDatasource extends DataSourceApi<CloudWatchQuery>
     return this.doMetricQueryRequest('namespaces', null);
   }
 
-  getMetrics(namespace: string, region: string) {
+  async getMetrics(namespace: string, region: string) {
+    if (!namespace || !region) {
+      return [];
+    }
+
     return this.doMetricQueryRequest('metrics', {
       region: this.templateSrv.replace(this.getActualRegion(region)),
       namespace: this.templateSrv.replace(namespace),
     });
   }
 
-  getDimensionKeys(namespace: string, region: string) {
+  async getDimensionKeys(namespace: string, region: string) {
+    if (!namespace) {
+      return [];
+    }
+
     return this.doMetricQueryRequest('dimension_keys', {
       region: this.templateSrv.replace(this.getActualRegion(region)),
       namespace: this.templateSrv.replace(namespace),
     });
   }
 
-  getDimensionValues(
+  async getDimensionValues(
     region: string,
     namespace: string,
     metricName: string,
     dimensionKey: string,
     filterDimensions: {}
   ) {
-    return this.doMetricQueryRequest('dimension_values', {
+    if (!namespace || !metricName) {
+      return [];
+    }
+
+    const values = await this.doMetricQueryRequest('dimension_values', {
       region: this.templateSrv.replace(this.getActualRegion(region)),
       namespace: this.templateSrv.replace(namespace),
-      metricName: this.templateSrv.replace(metricName),
+      metricName: this.templateSrv.replace(metricName.trim()),
       dimensionKey: this.templateSrv.replace(dimensionKey),
       dimensions: this.convertDimensionFormat(filterDimensions, {}),
     });
+
+    return values.length ? [{ value: '*', text: '*', label: '*' }, ...values] : values;
   }
 
   getEbsVolumeIds(region: string, instanceId: string) {
@@ -313,7 +400,7 @@ export default class CloudWatchDatasource extends DataSourceApi<CloudWatchQuery>
     });
   }
 
-  metricFindQuery(query: string) {
+  async metricFindQuery(query: string) {
     let region;
     let namespace;
     let metricName;
@@ -382,6 +469,11 @@ export default class CloudWatchDatasource extends DataSourceApi<CloudWatchQuery>
       return this.getResourceARNs(region, resourceType, tagsJSON);
     }
 
+    const statsQuery = query.match(/^statistics\(\)/);
+    if (statsQuery) {
+      return this.standardStatistics.map((s: string) => ({ value: s, label: s, text: s }));
+    }
+
     return this.$q.when([]);
   }
 
@@ -414,7 +506,7 @@ export default class CloudWatchDatasource extends DataSourceApi<CloudWatchQuery>
             refId: 'annotationQuery',
             intervalMs: 1, // dummy
             maxDataPoints: 1, // dummy
-            datasourceId: this.instanceSettings.id,
+            datasourceId: this.id,
             type: 'annotationQuery',
           },
           parameters
@@ -445,7 +537,7 @@ export default class CloudWatchDatasource extends DataSourceApi<CloudWatchQuery>
   }
 
   testDatasource() {
-    /* use billing metrics for test */
+    // use billing metrics for test
     const region = this.defaultRegion;
     const namespace = 'AWS/Billing';
     const metricName = 'EstimatedCharges';
@@ -479,68 +571,6 @@ export default class CloudWatchDatasource extends DataSourceApi<CloudWatchQuery>
     return region;
   }
 
-  getExpandedVariables(target: any, dimensionKey: any, variable: any, templateSrv: TemplateSrv) {
-    /* if the all checkbox is marked we should add all values to the targets */
-    const allSelected: any = _.find(variable.options, { selected: true, text: 'All' });
-    const selectedVariables = _.filter(variable.options, v => {
-      if (allSelected) {
-        return v.text !== 'All';
-      } else {
-        return v.selected;
-      }
-    });
-    const currentVariables = !_.isArray(variable.current.value)
-      ? [variable.current]
-      : variable.current.value.map((v: any) => {
-          return {
-            text: v,
-            value: v,
-          };
-        });
-    const useSelectedVariables =
-      selectedVariables.some((s: any) => {
-        return s.value === currentVariables[0].value;
-      }) || currentVariables[0].value === '$__all';
-    return (useSelectedVariables ? selectedVariables : currentVariables).map((v: any) => {
-      const t = angular.copy(target);
-      const scopedVar: any = {};
-      scopedVar[variable.name] = v;
-      t.refId = target.refId + '_' + v.value;
-      t.dimensions[dimensionKey] = templateSrv.replace(t.dimensions[dimensionKey], scopedVar);
-      if (variable.multi && target.id) {
-        t.id = target.id + window.btoa(v.value).replace(/=/g, '0'); // generate unique id
-      } else {
-        t.id = target.id;
-      }
-      return t;
-    });
-  }
-
-  expandTemplateVariable(targets: any, scopedVars: ScopedVars, templateSrv: TemplateSrv) {
-    // Datasource and template srv logic uber-complected. This should be cleaned up.
-    return _.chain(targets)
-      .map(target => {
-        if (target.id && target.id.length > 0 && target.expression && target.expression.length > 0) {
-          return [target];
-        }
-
-        const variableIndex = _.keyBy(templateSrv.variables, 'name');
-        const dimensionKey = _.findKey(target.dimensions, v => {
-          const variableName = templateSrv.getVariableName(v);
-          return templateSrv.variableExists(v) && !_.has(scopedVars, variableName) && variableIndex[variableName].multi;
-        });
-
-        if (dimensionKey) {
-          const multiVariable = variableIndex[templateSrv.getVariableName(target.dimensions[dimensionKey])];
-          return this.getExpandedVariables(target, dimensionKey, multiVariable, templateSrv);
-        } else {
-          return [target];
-        }
-      })
-      .flatten()
-      .value();
-  }
-
   convertToCloudWatchTime(date: any, roundUp: any) {
     if (_.isString(date)) {
       date = dateMath.parse(date, roundUp);
@@ -548,11 +578,38 @@ export default class CloudWatchDatasource extends DataSourceApi<CloudWatchQuery>
     return Math.round(date.valueOf() / 1000);
   }
 
-  convertDimensionFormat(dimensions: any, scopedVars: ScopedVars) {
-    const convertedDimensions: any = {};
-    _.each(dimensions, (value, key) => {
-      convertedDimensions[this.templateSrv.replace(key, scopedVars)] = this.templateSrv.replace(value, scopedVars);
-    });
-    return convertedDimensions;
+  convertDimensionFormat(dimensions: { [key: string]: string | string[] }, scopedVars: ScopedVars) {
+    return Object.entries(dimensions).reduce((result, [key, value]) => {
+      key = this.replace(key, scopedVars, true, 'dimension keys');
+
+      if (Array.isArray(value)) {
+        return { ...result, [key]: value };
+      }
+
+      const valueVar = this.templateSrv.variables.find(({ name }) => name === this.templateSrv.getVariableName(value));
+      if (valueVar) {
+        if (valueVar.multi) {
+          const values = this.templateSrv.replace(value, scopedVars, 'pipe').split('|');
+          return { ...result, [key]: values };
+        }
+        return { ...result, [key]: [this.templateSrv.replace(value, scopedVars)] };
+      }
+
+      return { ...result, [key]: [value] };
+    }, {});
+  }
+
+  replace(target: string, scopedVars: ScopedVars, displayErrorIfIsMultiTemplateVariable?: boolean, fieldName?: string) {
+    if (displayErrorIfIsMultiTemplateVariable) {
+      const variable = this.templateSrv.variables.find(({ name }) => name === this.templateSrv.getVariableName(target));
+      if (variable && variable.multi) {
+        this.debouncedCustomAlert(
+          'CloudWatch templating error',
+          `Multi template variables are not supported for ${fieldName || target}`
+        );
+      }
+    }
+
+    return this.templateSrv.replace(target, scopedVars);
   }
 }

public/app/plugins/datasource/cloudwatch/memoizedDebounce.ts

@@ -0,0 +1,13 @@
+import { debounce, memoize } from 'lodash';
+
+export default (func: (...args: any[]) => void, wait = 7000) => {
+  const mem = memoize(
+    (...args) =>
+      debounce(func, wait, {
+        leading: true,
+      }),
+    (...args) => JSON.stringify(args)
+  );
+
+  return (...args: any[]) => mem(...args)(...args);
+};

public/app/plugins/datasource/cloudwatch/module.ts

@@ -1,16 +0,0 @@
-import './query_parameter_ctrl';
-
-import CloudWatchDatasource from './datasource';
-import { CloudWatchQueryCtrl } from './query_ctrl';
-import { CloudWatchConfigCtrl } from './config_ctrl';
-
-class CloudWatchAnnotationsQueryCtrl {
-  static templateUrl = 'partials/annotations.editor.html';
-}
-
-export {
-  CloudWatchDatasource as Datasource,
-  CloudWatchQueryCtrl as QueryCtrl,
-  CloudWatchConfigCtrl as ConfigCtrl,
-  CloudWatchAnnotationsQueryCtrl as AnnotationsQueryCtrl,
-};

public/app/plugins/datasource/cloudwatch/module.tsx

@@ -0,0 +1,16 @@
+import { DataSourcePlugin } from '@grafana/data';
+import { ConfigEditor } from './components/ConfigEditor';
+import { QueryEditor } from './components/QueryEditor';
+import CloudWatchDatasource from './datasource';
+import { CloudWatchJsonData, CloudWatchQuery } from './types';
+
+class CloudWatchAnnotationsQueryCtrl {
+  static templateUrl = 'partials/annotations.editor.html';
+}
+
+export const plugin = new DataSourcePlugin<CloudWatchDatasource, CloudWatchQuery, CloudWatchJsonData>(
+  CloudWatchDatasource
+)
+  .setConfigEditor(ConfigEditor)
+  .setQueryEditor(QueryEditor)
+  .setAnnotationQueryCtrl(CloudWatchAnnotationsQueryCtrl);

public/app/plugins/datasource/cloudwatch/partials/config.html

@@ -1,55 +0,0 @@
-<h3 class="page-heading">CloudWatch details</h3>
-
-<div class="gf-form-group max-width-30">
-  <div class="gf-form gf-form-select-wrapper">
-    <label class="gf-form-label width-13">Auth Provider</label>
-    <select class="gf-form-input gf-max-width-13" ng-model="ctrl.current.jsonData.authType" ng-options="f.value as f.name for f in ctrl.authTypes"></select>
-  </div>
-
-  <div class="gf-form" ng-show='ctrl.current.jsonData.authType == "credentials"'>
-    <label class="gf-form-label width-13">Credentials profile name</label>
-    <input type="text" class="gf-form-input max-width-18 gf-form-input--has-help-icon" ng-model='ctrl.current.database' placeholder="default"></input>
-    <info-popover mode="right-absolute">
-      Credentials profile name, as specified in ~/.aws/credentials, leave blank for default
-    </info-popover>
-  </div>
-
-  <div class="gf-form" ng-show='ctrl.current.jsonData.authType == "keys"'>
-    <label class="gf-form-label width-13">Access key ID </label>
-    <label class="gf-form-label width-13" ng-show="ctrl.accessKeyExist">Configured</label>
-    <a class="btn btn-secondary gf-form-btn" type="submit" ng-click="ctrl.resetAccessKey()" ng-show="ctrl.accessKeyExist">Reset</a>
-    <input type="text" class="gf-form-input max-width-18" ng-hide="ctrl.accessKeyExist" ng-model='ctrl.current.secureJsonData.accessKey'></input>
-  </div>
-
-  <div class="gf-form" ng-show='ctrl.current.jsonData.authType == "keys"'>
-    <label class="gf-form-label width-13">Secret access key</label>
-    <label class="gf-form-label width-13" ng-show="ctrl.secretKeyExist">Configured</label>
-    <a class="btn btn-secondary gf-form-btn" type="submit" ng-click="ctrl.resetSecretKey()" ng-show="ctrl.secretKeyExist">Reset</a>
-    <input type="text" class="gf-form-input max-width-18" ng-hide="ctrl.secretKeyExist" ng-model='ctrl.current.secureJsonData.secretKey'></input>
-  </div>
-
-  <div class="gf-form" ng-show='ctrl.current.jsonData.authType == "arn"'>
-    <label class="gf-form-label width-13">Assume Role ARN</label>
-    <input type="text" class="gf-form-input max-width-18 gf-form-input--has-help-icon" ng-model='ctrl.current.jsonData.assumeRoleArn' placeholder="arn:aws:iam:*"></input>
-    <info-popover mode="right-absolute">
-      ARN of Assume Role
-    </info-popover>
-  </div>
-
-  <div class="gf-form">
-    <label class="gf-form-label width-13">Default Region</label>
-    <div class="gf-form-select-wrapper max-width-18 gf-form-select-wrapper--has-help-icon">
-      <select class="gf-form-input" ng-model="ctrl.current.jsonData.defaultRegion" ng-options="region for region in ctrl.regions"></select>
-      <info-popover mode="right-absolute">
-        Specify the region, such as for US West (Oregon) use ` us-west-2 ` as the region.
-      </info-popover>
-    </div>
-  </div>
-  <div class="gf-form">
-    <label class="gf-form-label width-13">Custom Metrics</label>
-    <input type="text" class="gf-form-input max-width-18 gf-form-input--has-help-icon" ng-model='ctrl.current.jsonData.customMetricsNamespaces' placeholder="Namespace1,Namespace2"></input>
-    <info-popover mode="right-absolute">
-      Namespaces of Custom Metrics
-    </info-popover>
-  </div>
-</div>

public/app/plugins/datasource/cloudwatch/partials/query.editor.html

@@ -1,4 +0,0 @@
-<query-editor-row query-ctrl="ctrl" can-collapse="false">
-	<cloudwatch-query-parameter target="ctrl.target" datasource="ctrl.datasource" on-change="ctrl.refresh()"></cloudwatch-query-parameter>
-</query-editor-row>
-

public/app/plugins/datasource/cloudwatch/partials/query.parameter.html

@@ -1,92 +1,143 @@
 <div class="gf-form-inline">
-        <div class="gf-form">
-                <label class="gf-form-label query-keyword width-8">Region</label>
-                <metric-segment segment="regionSegment" get-options="getRegions()" on-change="regionChanged()"></metric-segment>
-        </div>
+  <div class="gf-form">
+    <label class="gf-form-label query-keyword width-8">Region</label>
+    <metric-segment segment="regionSegment" get-options="getRegions()" on-change="regionChanged()"></metric-segment>
+  </div>
 
-        <div class="gf-form gf-form--grow">
-                <div class="gf-form-label gf-form-label--grow"></div>
-        </div>
+  <div class="gf-form gf-form--grow">
+    <div class="gf-form-label gf-form-label--grow"></div>
+  </div>
 </div>
 
 <div class="gf-form-inline" ng-if="target.expression.length === 0">
-	<div class="gf-form">
-		<label class="gf-form-label query-keyword width-8">Metric</label>
+  <div class="gf-form">
+    <label class="gf-form-label query-keyword width-8">Metric</label>
 
-		<metric-segment segment="namespaceSegment" get-options="getNamespaces()" on-change="namespaceChanged()"></metric-segment>
-		<metric-segment segment="metricSegment" get-options="getMetrics()" on-change="metricChanged()"></metric-segment>
-	</div>
+    <metric-segment
+      segment="namespaceSegment"
+      get-options="getNamespaces()"
+      on-change="namespaceChanged()"
+    ></metric-segment>
+    <metric-segment segment="metricSegment" get-options="getMetrics()" on-change="metricChanged()"></metric-segment>
+  </div>
 
-	<div class="gf-form">
-		<label class="gf-form-label query-keyword">Stats</label>
-	</div>
+  <div class="gf-form">
+    <label class="gf-form-label query-keyword">Stats</label>
+  </div>
 
-	<div class="gf-form" ng-repeat="segment in statSegments">
-		<metric-segment segment="segment" get-options="getStatSegments(segment, $index)" on-change="statSegmentChanged(segment, $index)"></metric-segment>
-	</div>
+  <div class="gf-form" ng-repeat="segment in statSegments">
+    <metric-segment
+      segment="segment"
+      get-options="getStatSegments(segment, $index)"
+      on-change="statSegmentChanged(segment, $index)"
+    ></metric-segment>
+  </div>
 
-	<div class="gf-form gf-form--grow">
-		<div class="gf-form-label gf-form-label--grow"></div>
-	</div>
+  <div class="gf-form gf-form--grow">
+    <div class="gf-form-label gf-form-label--grow"></div>
+  </div>
 </div>
 
 <div class="gf-form-inline" ng-if="target.expression.length === 0">
-	<div class="gf-form">
-		<label class="gf-form-label query-keyword width-8">Dimensions</label>
-		<metric-segment ng-repeat="segment in dimSegments" segment="segment" get-options="getDimSegments(segment, $index)" on-change="dimSegmentChanged(segment, $index)"></metric-segment>
-	</div>
+  <div class="gf-form">
+    <label class="gf-form-label query-keyword width-8">Dimensions</label>
+    <metric-segment
+      ng-repeat="segment in dimSegments"
+      segment="segment"
+      get-options="getDimSegments(segment, $index)"
+      on-change="dimSegmentChanged(segment, $index)"
+    ></metric-segment>
+  </div>
 
-	<div class="gf-form gf-form--grow">
-		<div class="gf-form-label gf-form-label--grow"></div>
-	</div>
+  <div class="gf-form gf-form--grow">
+    <div class="gf-form-label gf-form-label--grow"></div>
+  </div>
 </div>
 
 <div class="gf-form-inline" ng-if="target.statistics.length === 1">
-	<div class="gf-form">
-		<label class=" gf-form-label query-keyword width-8 ">
-			Id
-			<info-popover mode="right-normal ">Id can include numbers, letters, and underscore, and must start with a lowercase letter.</info-popover>
-		</label>
-		<input type="text " class="gf-form-input " ng-model="target.id " spellcheck='false' ng-pattern='/^[a-z][a-zA-Z0-9_]*$/' ng-model-onblur ng-change="onChange() ">
-	</div>
-	<div class="gf-form max-width-30 ">
-		<label class="gf-form-label query-keyword width-7 ">Expression</label>
-		<input type="text " class="gf-form-input " ng-model="target.expression
-	 " spellcheck='false' ng-model-onblur ng-change="onChange() ">
-	</div>
+  <div class="gf-form">
+    <label class=" gf-form-label query-keyword width-8 ">
+      Id
+      <info-popover mode="right-normal "
+        >Id can include numbers, letters, and underscore, and must start with a lowercase letter.</info-popover
+      >
+    </label>
+    <input
+      type="text "
+      class="gf-form-input "
+      ng-model="target.id "
+      spellcheck="false"
+      ng-pattern="/^[a-z][a-zA-Z0-9_]*$/"
+      ng-model-onblur
+      ng-change="onChange() "
+    />
+  </div>
+  <div class="gf-form max-width-30 ">
+    <label class="gf-form-label query-keyword width-7 ">Expression</label>
+    <input
+      type="text "
+      class="gf-form-input "
+      ng-model="target.expression
+ "
+      spellcheck="false"
+      ng-model-onblur
+      ng-change="onChange() "
+    />
+  </div>
 </div>
 
 <div class="gf-form-inline ">
-	<div class="gf-form ">
-		<label class="gf-form-label query-keyword width-8 ">
-			Min period
-			<info-popover mode="right-normal ">Minimum interval between points in seconds</info-popover>
-		</label>
-		<input type="text " class="gf-form-input " ng-model="target.period " spellcheck='false' placeholder="auto
-	 " ng-model-onblur ng-change="onChange() " />
-	</div>
-	<div class="gf-form max-width-30 ">
-		<label class="gf-form-label query-keyword width-7 ">Alias</label>
-		<input type="text " class="gf-form-input " ng-model="target.alias " spellcheck='false' ng-model-onblur ng-change="onChange() ">
-		<info-popover mode="right-absolute ">
-			Alias replacement variables:
-			<ul ng-non-bindable>
-				<li>{{metric}}</li>
-				<li>{{stat}}</li>
-				<li>{{namespace}}</li>
-				<li>{{region}}</li>
-				<li>{{period}}</li>
-				<li>{{label}}</li>
-				<li>{{YOUR_DIMENSION_NAME}}</li>
-			</ul>
-		</info-popover>
-	</div>
-	<div class="gf-form ">
-		<gf-form-switch class="gf-form " label="HighRes " label-class="width-5 " checked="target.highResolution " on-change="onChange() ">
-		</gf-form-switch>
-	</div>
+  <div class="gf-form ">
+    <label class="gf-form-label query-keyword width-8 ">
+      Min period
+      <info-popover mode="right-normal ">Minimum interval between points in seconds</info-popover>
+    </label>
+    <input
+      type="text "
+      class="gf-form-input "
+      ng-model="target.period "
+      spellcheck="false"
+      placeholder="auto
+ "
+      ng-model-onblur
+      ng-change="onChange() "
+    />
+  </div>
+  <div class="gf-form max-width-30 ">
+    <label class="gf-form-label query-keyword width-7 ">Alias</label>
+    <input
+      type="text "
+      class="gf-form-input "
+      ng-model="target.alias "
+      spellcheck="false"
+      ng-model-onblur
+      ng-change="onChange() "
+    />
+    <info-popover mode="right-absolute ">
+      Alias replacement variables:
+      <ul ng-non-bindable>
+        <li>{{ metric }}</li>
+        <li>{{ stat }}</li>
+        <li>{{ namespace }}</li>
+        <li>{{ region }}</li>
+        <li>{{ period }}</li>
+        <li>{{ label }}</li>
+        <li>{{ YOUR_DIMENSION_NAME }}</li>
+      </ul>
+    </info-popover>
+  </div>
+  <div class="gf-form ">
+    <gf-form-switch
+      class="gf-form "
+      label="HighRes "
+      label-class="width-5 "
+      checked="target.highResolution "
+      on-change="onChange()"
+    >
+    </gf-form-switch>
+  </div>
 
-	<div class="gf-form gf-form--grow ">
-		<div class="gf-form-label gf-form-label--grow "></div>
-	</div>
+  <div class="gf-form gf-form--grow ">
+    <div class="gf-form-label gf-form-label--grow "></div>
+  </div>
 </div>

public/app/plugins/datasource/cloudwatch/plugin.json

@@ -7,7 +7,6 @@
   "metrics": true,
   "alerting": true,
   "annotations": true,
-
   "info": {
     "description": "Data source for Amazon AWS monitoring service",
     "author": {

public/app/plugins/datasource/cloudwatch/query_ctrl.ts

@@ -1,15 +0,0 @@
-import './query_parameter_ctrl';
-import { QueryCtrl } from 'app/plugins/sdk';
-import { auto } from 'angular';
-
-export class CloudWatchQueryCtrl extends QueryCtrl {
-  static templateUrl = 'partials/query.editor.html';
-
-  aliasSyntax: string;
-
-  /** @ngInject */
-  constructor($scope: any, $injector: auto.IInjectorService) {
-    super($scope, $injector);
-    this.aliasSyntax = '{{metric}} {{stat}} {{namespace}} {{region}} {{<dimension name>}}';
-  }
-}

public/app/plugins/datasource/cloudwatch/specs/datasource.test.ts

@@ -1,5 +1,6 @@
 import '../datasource';
 import CloudWatchDatasource from '../datasource';
+import * as redux from 'app/store/store';
 import { dateMath } from '@grafana/data';
 import { TemplateSrv } from 'app/features/templating/template_srv';
 import { CustomVariable } from 'app/features/templating/all';
@@ -12,6 +13,7 @@ import { TimeSrv } from 'app/features/dashboard/services/TimeSrv';
 describe('CloudWatchDatasource', () => {
   const instanceSettings = {
     jsonData: { defaultRegion: 'us-east-1' },
+    name: 'TestDatasource',
   } as DataSourceInstanceSettings;
 
   const templateSrv = new TemplateSrv();
@@ -45,6 +47,7 @@ describe('CloudWatchDatasource', () => {
       rangeRaw: { from: 1483228800, to: 1483232400 },
       targets: [
         {
+          expression: '',
           refId: 'A',
           region: 'us-east-1',
           namespace: 'AWS/EC2',
@@ -90,7 +93,7 @@ describe('CloudWatchDatasource', () => {
         const params = requestParams.queries[0];
         expect(params.namespace).toBe(query.targets[0].namespace);
         expect(params.metricName).toBe(query.targets[0].metricName);
-        expect(params.dimensions['InstanceId']).toBe('i-12345678');
+        expect(params.dimensions['InstanceId']).toStrictEqual(['i-12345678']);
         expect(params.statistics).toEqual(query.targets[0].statistics);
         expect(params.period).toBe(query.targets[0].period);
         done();
@@ -164,6 +167,142 @@ describe('CloudWatchDatasource', () => {
         done();
       });
     });
+
+    describe('a correct cloudwatch url should be built for each time series in the response', () => {
+      beforeEach(() => {
+        ctx.backendSrv.datasourceRequest = jest.fn(params => {
+          requestParams = params.data;
+          return Promise.resolve({ data: response });
+        });
+      });
+
+      it('should be built correctly if theres one search expressions returned in meta for a given query row', done => {
+        response.results['A'].meta.gmdMeta = [{ Expression: `REMOVE_EMPTY(SEARCH('some expression'))` }];
+        ctx.ds.query(query).then((result: any) => {
+          expect(result.data[0].name).toBe(response.results.A.series[0].name);
+          expect(result.data[0].fields[0].config.links[0].title).toBe('View in CloudWatch console');
+          expect(decodeURIComponent(result.data[0].fields[0].config.links[0].url)).toContain(
+            `region=us-east-1#metricsV2:graph={"view":"timeSeries","stacked":false,"title":"A","start":"2016-12-31T15:00:00.000Z","end":"2016-12-31T16:00:00.000Z","region":"us-east-1","metrics":[{"expression":"REMOVE_EMPTY(SEARCH(\'some expression\'))"}]}`
+          );
+          done();
+        });
+      });
+
+      it('should be built correctly if theres two search expressions returned in meta for a given query row', done => {
+        response.results['A'].meta.gmdMeta = [
+          { Expression: `REMOVE_EMPTY(SEARCH('first expression'))` },
+          { Expression: `REMOVE_EMPTY(SEARCH('second expression'))` },
+        ];
+        ctx.ds.query(query).then((result: any) => {
+          expect(result.data[0].name).toBe(response.results.A.series[0].name);
+          expect(result.data[0].fields[0].config.links[0].title).toBe('View in CloudWatch console');
+          expect(decodeURIComponent(result.data[0].fields[0].config.links[0].url)).toContain(
+            `region=us-east-1#metricsV2:graph={"view":"timeSeries","stacked":false,"title":"A","start":"2016-12-31T15:00:00.000Z","end":"2016-12-31T16:00:00.000Z","region":"us-east-1","metrics":[{"expression":"REMOVE_EMPTY(SEARCH(\'first expression\'))"},{"expression":"REMOVE_EMPTY(SEARCH(\'second expression\'))"}]}`
+          );
+          done();
+        });
+      });
+
+      it('should be built correctly if the query is a metric stat query', done => {
+        response.results['A'].meta.gmdMeta = [];
+        ctx.ds.query(query).then((result: any) => {
+          expect(result.data[0].name).toBe(response.results.A.series[0].name);
+          expect(result.data[0].fields[0].config.links[0].title).toBe('View in CloudWatch console');
+          expect(decodeURIComponent(result.data[0].fields[0].config.links[0].url)).toContain(
+            `region=us-east-1#metricsV2:graph={\"view\":\"timeSeries\",\"stacked\":false,\"title\":\"A\",\"start\":\"2016-12-31T15:00:00.000Z\",\"end\":\"2016-12-31T16:00:00.000Z\",\"region\":\"us-east-1\",\"metrics\":[[\"AWS/EC2\",\"CPUUtilization\",\"InstanceId\",\"i-12345678\",{\"stat\":\"Average\",\"period\":\"300\"}]]}`
+          );
+          done();
+        });
+      });
+
+      it('should not be added at all if query is a math expression', done => {
+        query.targets[0].expression = 'a * 2';
+        response.results['A'].meta.searchExpressions = [];
+        ctx.ds.query(query).then((result: any) => {
+          expect(result.data[0].fields[0].config.links).toBeUndefined();
+          done();
+        });
+      });
+    });
+
+    describe('and throttling exception is thrown', () => {
+      const partialQuery = {
+        namespace: 'AWS/EC2',
+        metricName: 'CPUUtilization',
+        dimensions: {
+          InstanceId: 'i-12345678',
+        },
+        statistics: ['Average'],
+        period: '300',
+        expression: '',
+      };
+
+      const query = {
+        range: defaultTimeRange,
+        rangeRaw: { from: 1483228800, to: 1483232400 },
+        targets: [
+          { ...partialQuery, refId: 'A', region: 'us-east-1' },
+          { ...partialQuery, refId: 'B', region: 'us-east-2' },
+          { ...partialQuery, refId: 'C', region: 'us-east-1' },
+          { ...partialQuery, refId: 'D', region: 'us-east-2' },
+          { ...partialQuery, refId: 'E', region: 'eu-north-1' },
+        ],
+      };
+
+      const backendErrorResponse = {
+        data: {
+          message: 'Throttling: exception',
+          results: {
+            A: {
+              error: 'Throttling: exception',
+              refId: 'A',
+              meta: {},
+            },
+            B: {
+              error: 'Throttling: exception',
+              refId: 'B',
+              meta: {},
+            },
+            C: {
+              error: 'Throttling: exception',
+              refId: 'C',
+              meta: {},
+            },
+            D: {
+              error: 'Throttling: exception',
+              refId: 'D',
+              meta: {},
+            },
+            E: {
+              error: 'Throttling: exception',
+              refId: 'E',
+              meta: {},
+            },
+          },
+        },
+      };
+
+      beforeEach(() => {
+        redux.setStore({
+          dispatch: jest.fn(),
+        });
+
+        ctx.backendSrv.datasourceRequest = jest.fn(() => {
+          return Promise.reject(backendErrorResponse);
+        });
+      });
+
+      it('should display one alert error message per region+datasource combination', done => {
+        const memoizedDebounceSpy = jest.spyOn(ctx.ds, 'debouncedAlert');
+        ctx.ds.query(query).catch(() => {
+          expect(memoizedDebounceSpy).toHaveBeenCalledWith('TestDatasource', 'us-east-1');
+          expect(memoizedDebounceSpy).toHaveBeenCalledWith('TestDatasource', 'us-east-2');
+          expect(memoizedDebounceSpy).toHaveBeenCalledWith('TestDatasource', 'eu-north-1');
+          expect(memoizedDebounceSpy).toBeCalledTimes(3);
+          done();
+        });
+      });
+    });
   });
 
   describe('When query region is "default"', () => {
@@ -308,6 +447,21 @@ describe('CloudWatchDatasource', () => {
           },
           {} as any
         ),
+        new CustomVariable(
+          {
+            name: 'var4',
+            options: [
+              { selected: true, value: 'var4-foo' },
+              { selected: false, value: 'var4-bar' },
+              { selected: true, value: 'var4-baz' },
+            ],
+            current: {
+              value: ['var4-foo', 'var4-baz'],
+            },
+            multi: true,
+          },
+          {} as any
+        ),
       ]);
 
       ctx.backendSrv.datasourceRequest = jest.fn(params => {
@@ -336,12 +490,12 @@ describe('CloudWatchDatasource', () => {
       };
 
       ctx.ds.query(query).then(() => {
-        expect(requestParams.queries[0].dimensions['dim2']).toBe('var2-foo');
+        expect(requestParams.queries[0].dimensions['dim2']).toStrictEqual(['var2-foo']);
         done();
       });
     });
 
-    it('should generate the correct query for multilple template variables', done => {
+    it('should generate the correct query in the case of one multilple template variables', done => {
       const query = {
         range: defaultTimeRange,
         rangeRaw: { from: 1483228800, to: 1483232400 },
@@ -367,12 +521,38 @@ describe('CloudWatchDatasource', () => {
       };
 
       ctx.ds.query(query).then(() => {
-        expect(requestParams.queries[0].dimensions['dim1']).toBe('var1-foo');
-        expect(requestParams.queries[0].dimensions['dim2']).toBe('var2-foo');
-        expect(requestParams.queries[0].dimensions['dim3']).toBe('var3-foo');
-        expect(requestParams.queries[1].dimensions['dim1']).toBe('var1-foo');
-        expect(requestParams.queries[1].dimensions['dim2']).toBe('var2-foo');
-        expect(requestParams.queries[1].dimensions['dim3']).toBe('var3-baz');
+        expect(requestParams.queries[0].dimensions['dim1']).toStrictEqual(['var1-foo']);
+        expect(requestParams.queries[0].dimensions['dim2']).toStrictEqual(['var2-foo']);
+        expect(requestParams.queries[0].dimensions['dim3']).toStrictEqual(['var3-foo', 'var3-baz']);
+        done();
+      });
+    });
+
+    it('should generate the correct query in the case of multilple multi template variables', done => {
+      const query = {
+        range: defaultTimeRange,
+        rangeRaw: { from: 1483228800, to: 1483232400 },
+        targets: [
+          {
+            refId: 'A',
+            region: 'us-east-1',
+            namespace: 'TestNamespace',
+            metricName: 'TestMetricName',
+            dimensions: {
+              dim1: '[[var1]]',
+              dim3: '[[var3]]',
+              dim4: '[[var4]]',
+            },
+            statistics: ['Average'],
+            period: 300,
+          },
+        ],
+      };
+
+      ctx.ds.query(query).then(() => {
+        expect(requestParams.queries[0].dimensions['dim1']).toStrictEqual(['var1-foo']);
+        expect(requestParams.queries[0].dimensions['dim3']).toStrictEqual(['var3-foo', 'var3-baz']);
+        expect(requestParams.queries[0].dimensions['dim4']).toStrictEqual(['var4-foo', 'var4-baz']);
         done();
       });
     });
@@ -402,67 +582,9 @@ describe('CloudWatchDatasource', () => {
       };
 
       ctx.ds.query(query).then(() => {
-        expect(requestParams.queries[0].dimensions['dim1']).toBe('var1-foo');
-        expect(requestParams.queries[0].dimensions['dim2']).toBe('var2-foo');
-        expect(requestParams.queries[0].dimensions['dim3']).toBe('var3-foo');
-        expect(requestParams.queries[1].dimensions['dim1']).toBe('var1-foo');
-        expect(requestParams.queries[1].dimensions['dim2']).toBe('var2-foo');
-        expect(requestParams.queries[1].dimensions['dim3']).toBe('var3-baz');
-        done();
-      });
-    });
-
-    it('should generate the correct query for multilple template variables with expression', done => {
-      const query: any = {
-        range: defaultTimeRange,
-        rangeRaw: { from: 1483228800, to: 1483232400 },
-        targets: [
-          {
-            refId: 'A',
-            id: 'id1',
-            region: 'us-east-1',
-            namespace: 'TestNamespace',
-            metricName: 'TestMetricName',
-            dimensions: {
-              dim1: '[[var1]]',
-              dim2: '[[var2]]',
-              dim3: '[[var3]]',
-            },
-            statistics: ['Average'],
-            period: 300,
-            expression: '',
-          },
-          {
-            refId: 'B',
-            id: 'id2',
-            expression: 'METRICS("id1") * 2',
-            dimensions: {
-              // garbage data for fail test
-              dim1: '[[var1]]',
-              dim2: '[[var2]]',
-              dim3: '[[var3]]',
-            },
-            statistics: [], // dummy
-          },
-        ],
-        scopedVars: {
-          var1: { selected: true, value: 'var1-foo' },
-          var2: { selected: true, value: 'var2-foo' },
-        },
-      };
-
-      ctx.ds.query(query).then(() => {
-        expect(requestParams.queries.length).toBe(3);
-        expect(requestParams.queries[0].id).toMatch(/^id1.*/);
-        expect(requestParams.queries[0].dimensions['dim1']).toBe('var1-foo');
-        expect(requestParams.queries[0].dimensions['dim2']).toBe('var2-foo');
-        expect(requestParams.queries[0].dimensions['dim3']).toBe('var3-foo');
-        expect(requestParams.queries[1].id).toMatch(/^id1.*/);
-        expect(requestParams.queries[1].dimensions['dim1']).toBe('var1-foo');
-        expect(requestParams.queries[1].dimensions['dim2']).toBe('var2-foo');
-        expect(requestParams.queries[1].dimensions['dim3']).toBe('var3-baz');
-        expect(requestParams.queries[2].id).toMatch(/^id2.*/);
-        expect(requestParams.queries[2].expression).toBe('METRICS("id1") * 2');
+        expect(requestParams.queries[0].dimensions['dim1']).toStrictEqual(['var1-foo']);
+        expect(requestParams.queries[0].dimensions['dim2']).toStrictEqual(['var2-foo']);
+        expect(requestParams.queries[0].dimensions['dim3']).toStrictEqual(['var3-foo', 'var3-baz']);
         done();
       });
     });
@@ -471,9 +593,9 @@ describe('CloudWatchDatasource', () => {
   function describeMetricFindQuery(query: any, func: any) {
     describe('metricFindQuery ' + query, () => {
       const scenario: any = {};
-      scenario.setup = (setupCallback: any) => {
-        beforeEach(() => {
-          setupCallback();
+      scenario.setup = async (setupCallback: any) => {
+        beforeEach(async () => {
+          await setupCallback();
           ctx.backendSrv.datasourceRequest = jest.fn(args => {
             scenario.request = args.data;
             return Promise.resolve({ data: scenario.requestResponse });
@@ -488,8 +610,8 @@ describe('CloudWatchDatasource', () => {
     });
   }
 
-  describeMetricFindQuery('regions()', (scenario: any) => {
-    scenario.setup(() => {
+  describeMetricFindQuery('regions()', async (scenario: any) => {
+    await scenario.setup(() => {
       scenario.requestResponse = {
         results: {
           metricFindQuery: {
@@ -506,8 +628,8 @@ describe('CloudWatchDatasource', () => {
     });
   });
 
-  describeMetricFindQuery('namespaces()', (scenario: any) => {
-    scenario.setup(() => {
+  describeMetricFindQuery('namespaces()', async (scenario: any) => {
+    await scenario.setup(() => {
       scenario.requestResponse = {
         results: {
           metricFindQuery: {
@@ -524,8 +646,8 @@ describe('CloudWatchDatasource', () => {
     });
   });
 
-  describeMetricFindQuery('metrics(AWS/EC2)', (scenario: any) => {
-    scenario.setup(() => {
+  describeMetricFindQuery('metrics(AWS/EC2, us-east-2)', async (scenario: any) => {
+    await scenario.setup(() => {
       scenario.requestResponse = {
         results: {
           metricFindQuery: {
@@ -542,8 +664,8 @@ describe('CloudWatchDatasource', () => {
     });
   });
 
-  describeMetricFindQuery('dimension_keys(AWS/EC2)', (scenario: any) => {
-    scenario.setup(() => {
+  describeMetricFindQuery('dimension_keys(AWS/EC2)', async (scenario: any) => {
+    await scenario.setup(() => {
       scenario.requestResponse = {
         results: {
           metricFindQuery: {
@@ -554,14 +676,15 @@ describe('CloudWatchDatasource', () => {
     });
 
     it('should call __GetDimensions and return result', () => {
+      console.log({ a: scenario.requestResponse.results });
       expect(scenario.result[0].text).toBe('InstanceId');
       expect(scenario.request.queries[0].type).toBe('metricFindQuery');
       expect(scenario.request.queries[0].subtype).toBe('dimension_keys');
     });
   });
 
-  describeMetricFindQuery('dimension_values(us-east-1,AWS/EC2,CPUUtilization,InstanceId)', (scenario: any) => {
-    scenario.setup(() => {
+  describeMetricFindQuery('dimension_values(us-east-1,AWS/EC2,CPUUtilization,InstanceId)', async (scenario: any) => {
+    await scenario.setup(() => {
       scenario.requestResponse = {
         results: {
           metricFindQuery: {
@@ -578,8 +701,8 @@ describe('CloudWatchDatasource', () => {
     });
   });
 
-  describeMetricFindQuery('dimension_values(default,AWS/EC2,CPUUtilization,InstanceId)', (scenario: any) => {
-    scenario.setup(() => {
+  describeMetricFindQuery('dimension_values(default,AWS/EC2,CPUUtilization,InstanceId)', async (scenario: any) => {
+    await scenario.setup(() => {
       scenario.requestResponse = {
         results: {
           metricFindQuery: {
@@ -596,32 +719,35 @@ describe('CloudWatchDatasource', () => {
     });
   });
 
-  describeMetricFindQuery('resource_arns(default,ec2:instance,{"environment":["production"]})', (scenario: any) => {
-    scenario.setup(() => {
-      scenario.requestResponse = {
-        results: {
-          metricFindQuery: {
-            tables: [
-              {
-                rows: [
-                  [
-                    'arn:aws:ec2:us-east-1:123456789012:instance/i-12345678901234567',
-                    'arn:aws:ec2:us-east-1:123456789012:instance/i-76543210987654321',
+  describeMetricFindQuery(
+    'resource_arns(default,ec2:instance,{"environment":["production"]})',
+    async (scenario: any) => {
+      await scenario.setup(() => {
+        scenario.requestResponse = {
+          results: {
+            metricFindQuery: {
+              tables: [
+                {
+                  rows: [
+                    [
+                      'arn:aws:ec2:us-east-1:123456789012:instance/i-12345678901234567',
+                      'arn:aws:ec2:us-east-1:123456789012:instance/i-76543210987654321',
+                    ],
                   ],
-                ],
-              },
-            ],
+                },
+              ],
+            },
           },
-        },
-      };
-    });
+        };
+      });
 
-    it('should call __ListMetrics and return result', () => {
-      expect(scenario.result[0].text).toContain('arn:aws:ec2:us-east-1:123456789012:instance/i-12345678901234567');
-      expect(scenario.request.queries[0].type).toBe('metricFindQuery');
-      expect(scenario.request.queries[0].subtype).toBe('resource_arns');
-    });
-  });
+      it('should call __ListMetrics and return result', () => {
+        expect(scenario.result[0].text).toContain('arn:aws:ec2:us-east-1:123456789012:instance/i-12345678901234567');
+        expect(scenario.request.queries[0].type).toBe('metricFindQuery');
+        expect(scenario.request.queries[0].subtype).toBe('resource_arns');
+      });
+    }
+  );
 
   it('should caclculate the correct period', () => {
     const hourSec = 60 * 60;

public/app/plugins/datasource/cloudwatch/types.ts

@@ -1,12 +1,29 @@
-import { DataQuery } from '@grafana/data';
+import { DataQuery, SelectableValue, DataSourceJsonData } from '@grafana/data';
 
 export interface CloudWatchQuery extends DataQuery {
   id: string;
   region: string;
   namespace: string;
   metricName: string;
-  dimensions: { [key: string]: string };
+  dimensions: { [key: string]: string | string[] };
   statistics: string[];
   period: string;
   expression: string;
+  alias: string;
+  highResolution: boolean;
+  matchExact: boolean;
+}
+
+export type SelectableStrings = Array<SelectableValue<string>>;
+
+export interface CloudWatchJsonData extends DataSourceJsonData {
+  timeField?: string;
+  assumeRoleArn?: string;
+  database?: string;
+  customMetricsNamespaces?: string;
+}
+
+export interface CloudWatchSecureJsonData {
+  accessKey: string;
+  secretKey: string;
 }