mirror of
https://github.com/grafana/grafana.git
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108 lines
3.1 KiB
Go
108 lines
3.1 KiB
Go
package api
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import (
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"encoding/json"
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"errors"
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"fmt"
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"io/ioutil"
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"time"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/service/cloudwatch"
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"github.com/grafana/grafana/pkg/middleware"
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)
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func ProxyCloudWatchDataSourceRequest(c *middleware.Context) {
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body, _ := ioutil.ReadAll(c.Req.Request.Body)
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reqInfo := &struct {
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Region string `json:"region"`
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Service string `json:"service"`
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Action string `json:"action"`
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}{}
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json.Unmarshal([]byte(body), reqInfo)
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svc := cloudwatch.New(&aws.Config{Region: aws.String(reqInfo.Region)})
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switch reqInfo.Action {
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case "GetMetricStatistics":
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reqParam := &struct {
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Parameters struct {
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Namespace string `json:"Namespace"`
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MetricName string `json:"MetricName"`
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Dimensions []map[string]string `json:"Dimensions"`
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Statistics []string `json:"Statistics"`
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StartTime int64 `json:"StartTime"`
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EndTime int64 `json:"EndTime"`
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Period int64 `json:"Period"`
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} `json:"parameters"`
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}{}
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json.Unmarshal([]byte(body), reqParam)
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statistics := make([]*string, 0)
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for k := range reqParam.Parameters.Statistics {
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statistics = append(statistics, &reqParam.Parameters.Statistics[k])
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}
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dimensions := make([]*cloudwatch.Dimension, 0)
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for _, d := range reqParam.Parameters.Dimensions {
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dimensions = append(dimensions, &cloudwatch.Dimension{
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Name: aws.String(d["Name"]),
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Value: aws.String(d["Value"]),
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})
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}
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params := &cloudwatch.GetMetricStatisticsInput{
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Namespace: aws.String(reqParam.Parameters.Namespace),
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MetricName: aws.String(reqParam.Parameters.MetricName),
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Dimensions: dimensions,
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Statistics: statistics,
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StartTime: aws.Time(time.Unix(reqParam.Parameters.StartTime, 0)),
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EndTime: aws.Time(time.Unix(reqParam.Parameters.EndTime, 0)),
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Period: aws.Int64(reqParam.Parameters.Period),
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}
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resp, err := svc.GetMetricStatistics(params)
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if err != nil {
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c.JsonApiErr(500, "Unable to call AWS API", err)
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return
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}
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respJson, _ := json.Marshal(resp)
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fmt.Fprint(c.RW(), string(respJson))
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case "ListMetrics":
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reqParam := &struct {
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Parameters struct {
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Namespace string `json:"Namespace"`
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MetricName string `json:"MetricName"`
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Dimensions []map[string]string `json:"Dimensions"`
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} `json:"parameters"`
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}{}
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json.Unmarshal([]byte(body), reqParam)
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dimensions := make([]*cloudwatch.DimensionFilter, 0)
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for _, d := range reqParam.Parameters.Dimensions {
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dimensions = append(dimensions, &cloudwatch.DimensionFilter{
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Name: aws.String(d["Name"]),
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Value: aws.String(d["Value"]),
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})
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}
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params := &cloudwatch.ListMetricsInput{
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Namespace: aws.String(reqParam.Parameters.Namespace),
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MetricName: aws.String(reqParam.Parameters.MetricName),
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Dimensions: dimensions,
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}
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resp, err := svc.ListMetrics(params)
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if err != nil {
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c.JsonApiErr(500, "Unable to call AWS API", err)
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return
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}
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respJson, _ := json.Marshal(resp)
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fmt.Fprint(c.RW(), string(respJson))
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default:
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c.JsonApiErr(500, "Unexpected CloudWatch action", errors.New(reqInfo.Action))
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}
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}
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