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Use cache for http.client in tsdb package. (#6833)

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* datasource: move caching closer to datasource struct

* tsdb: use cached version of datasource http transport

closes #6825
This commit is contained in:
Carl Bergquist 2016-12-07 11:10:42 +01:00 committed by Torkel Ödegaard
parent 24172fca01
commit 2c7adccf12
20 changed files with 385 additions and 363 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

75
pkg/api/dataproxy.go
View File

@ -1,13 +1,9 @@
package api
import (
"crypto/tls"
"crypto/x509"
"net"
"net/http"
"net/http/httputil"
"net/url"
"sync"
"time"
"github.com/grafana/grafana/pkg/api/cloudwatch"
@ -19,75 +15,6 @@ import (
"github.com/grafana/grafana/pkg/util"
)
type proxyTransportCache struct {
cache map[int64]cachedTransport
sync.Mutex
}
type cachedTransport struct {
updated time.Time
*http.Transport
}
var ptc = proxyTransportCache{
cache: make(map[int64]cachedTransport),
}
func DataProxyTransport(ds *m.DataSource) (*http.Transport, error) {
ptc.Lock()
defer ptc.Unlock()
if t, present := ptc.cache[ds.Id]; present && ds.Updated.Equal(t.updated) {
return t.Transport, nil
}
transport := &http.Transport{
TLSClientConfig: &tls.Config{
InsecureSkipVerify: true,
},
Proxy: http.ProxyFromEnvironment,
Dial: (&net.Dialer{
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
}).Dial,
TLSHandshakeTimeout: 10 * time.Second,
}
var tlsAuth, tlsAuthWithCACert bool
if ds.JsonData != nil {
tlsAuth = ds.JsonData.Get("tlsAuth").MustBool(false)
tlsAuthWithCACert = ds.JsonData.Get("tlsAuthWithCACert").MustBool(false)
}
if tlsAuth {
transport.TLSClientConfig.InsecureSkipVerify = false
decrypted := ds.SecureJsonData.Decrypt()
if tlsAuthWithCACert && len(decrypted["tlsCACert"]) > 0 {
caPool := x509.NewCertPool()
ok := caPool.AppendCertsFromPEM([]byte(decrypted["tlsCACert"]))
if ok {
transport.TLSClientConfig.RootCAs = caPool
}
}
cert, err := tls.X509KeyPair([]byte(decrypted["tlsClientCert"]), []byte(decrypted["tlsClientKey"]))
if err != nil {
return nil, err
}
transport.TLSClientConfig.Certificates = []tls.Certificate{cert}
}
ptc.cache[ds.Id] = cachedTransport{
Transport: transport,
updated: ds.Updated,
}
return transport, nil
}
func NewReverseProxy(ds *m.DataSource, proxyPath string, targetUrl *url.URL) *httputil.ReverseProxy {
director := func(req *http.Request) {
req.URL.Scheme = targetUrl.Scheme
@ -189,7 +116,7 @@ func ProxyDataSourceRequest(c *middleware.Context) {
}
proxy := NewReverseProxy(ds, proxyPath, targetUrl)
proxy.Transport, err = DataProxyTransport(ds)
proxy.Transport, err = ds.GetHttpTransport()
if err != nil {
c.JsonApiErr(400, "Unable to load TLS certificate", err)
return

153
pkg/api/dataproxy_test.go
View File

@ -4,24 +4,18 @@ import (
"net/http"
"net/url"
"testing"
"time"
. "github.com/smartystreets/goconvey/convey"
"github.com/grafana/grafana/pkg/components/simplejson"
m "github.com/grafana/grafana/pkg/models"
"github.com/grafana/grafana/pkg/setting"
"github.com/grafana/grafana/pkg/util"
)
func TestDataSourceProxy(t *testing.T) {
Convey("When getting graphite datasource proxy", t, func() {
clearCache()
ds := m.DataSource{Url: "htttp://graphite:8080", Type: m.DS_GRAPHITE}
targetUrl, err := url.Parse(ds.Url)
proxy := NewReverseProxy(&ds, "/render", targetUrl)
proxy.Transport, err = DataProxyTransport(&ds)
proxy.Transport, err = ds.GetHttpTransport()
So(err, ShouldBeNil)
transport, ok := proxy.Transport.(*http.Transport)
@ -40,7 +34,6 @@ func TestDataSourceProxy(t *testing.T) {
})
Convey("When getting influxdb datasource proxy", t, func() {
clearCache()
ds := m.DataSource{
Type: m.DS_INFLUXDB_08,
Url: "http://influxdb:8083",
@ -67,148 +60,4 @@ func TestDataSourceProxy(t *testing.T) {
So(queryVals["p"][0], ShouldEqual, "password")
})
})
Convey("When caching a datasource proxy", t, func() {
clearCache()
ds := m.DataSource{
Id: 1,
Url: "http://k8s:8001",
Type: "Kubernetes",
}
t1, err := DataProxyTransport(&ds)
So(err, ShouldBeNil)
t2, err := DataProxyTransport(&ds)
So(err, ShouldBeNil)
Convey("Should be using the cached proxy", func() {
So(t2, ShouldEqual, t1)
})
})
Convey("When getting kubernetes datasource proxy", t, func() {
clearCache()
setting.SecretKey = "password"
json := simplejson.New()
json.Set("tlsAuth", true)
json.Set("tlsAuthWithCACert", true)
t := time.Now()
ds := m.DataSource{
Url: "http://k8s:8001",
Type: "Kubernetes",
Updated: t.Add(-2 * time.Minute),
}
transport, err := DataProxyTransport(&ds)
So(err, ShouldBeNil)
Convey("Should have no cert", func() {
So(transport.TLSClientConfig.InsecureSkipVerify, ShouldEqual, true)
})
ds.JsonData = json
ds.SecureJsonData = map[string][]byte{
"tlsCACert": util.Encrypt([]byte(caCert), "password"),
"tlsClientCert": util.Encrypt([]byte(clientCert), "password"),
"tlsClientKey": util.Encrypt([]byte(clientKey), "password"),
}
ds.Updated = t.Add(-1 * time.Minute)
transport, err = DataProxyTransport(&ds)
So(err, ShouldBeNil)
Convey("Should add cert", func() {
So(transport.TLSClientConfig.InsecureSkipVerify, ShouldEqual, false)
So(len(transport.TLSClientConfig.Certificates), ShouldEqual, 1)
})
ds.JsonData = nil
ds.SecureJsonData = map[string][]byte{}
ds.Updated = t
transport, err = DataProxyTransport(&ds)
So(err, ShouldBeNil)
Convey("Should remove cert", func() {
So(transport.TLSClientConfig.InsecureSkipVerify, ShouldEqual, true)
So(len(transport.TLSClientConfig.Certificates), ShouldEqual, 0)
})
})
}
func clearCache() {
ptc.Lock()
defer ptc.Unlock()
ptc.cache = make(map[int64]cachedTransport)
}
const caCert string = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`
const clientCert string = `-----BEGIN CERTIFICATE-----
MIICsjCCAZoCCQCcd8sOfstQLzANBgkqhkiG9w0BAQsFADAXMRUwEwYDVQQDDAxj
YS1rOHMtc3RobG0wHhcNMTYxMTAyMDkyNTE1WhcNMTcxMTAyMDkyNTE1WjAfMR0w
GwYDVQQDDBRhZG0tZGFuaWVsLWs4cy1zdGhsbTCCASIwDQYJKoZIhvcNAQEBBQAD
ggEPADCCAQoCggEBAOMliaWyNEUJKM37vWCl5bGub3lMicyRAqGQyY/qxD9yKKM2
FbucVcmWmg5vvTqQVl5rlQ+c7GI8OD6ptmFl8a26coEki7bFr8bkpSyBSEc5p27b
Z0ORFSqBHWHQbr9PkxPLYW6T3gZYUtRYv3OQgGxLXlvUh85n/mQfuR3N1FgmShHo
GtAFi/ht6leXa0Ms+jNSDLCmXpJm1GIEqgyKX7K3+g3vzo9coYqXq4XTa8Efs2v8
SCwqWfBC3rHfgs/5DLB8WT4Kul8QzxkytzcaBQfRfzhSV6bkgm7oTzt2/1eRRsf4
YnXzLE9YkCC9sAn+Owzqf+TYC1KRluWDfqqBTJUCAwEAATANBgkqhkiG9w0BAQsF
AAOCAQEAdMsZg6edWGC+xngizn0uamrUg1ViaDqUsz0vpzY5NWLA4MsBc4EtxWRP
ueQvjUimZ3U3+AX0YWNLIrH1FCVos2jdij/xkTUmHcwzr8rQy+B17cFi+a8jtpgw
AU6WWoaAIEhhbWQfth/Diz3mivl1ARB+YqiWca2mjRPLTPcKJEURDVddQ423el0Q
4JNxS5icu7T2zYTYHAo/cT9zVdLZl0xuLxYm3asK1IONJ/evxyVZima3il6MPvhe
58Hwz+m+HdqHxi24b/1J/VKYbISG4huOQCdLzeNXgvwFlGPUmHSnnKo1/KbQDAR5
llG/Sw5+FquFuChaA6l5KWy7F3bQyA==
-----END CERTIFICATE-----`
const clientKey string = `-----BEGIN RSA PRIVATE KEY-----
MIIEpQIBAAKCAQEA4yWJpbI0RQkozfu9YKXlsa5veUyJzJECoZDJj+rEP3IoozYV
u5xVyZaaDm+9OpBWXmuVD5zsYjw4Pqm2YWXxrbpygSSLtsWvxuSlLIFIRzmnbttn
Q5EVKoEdYdBuv0+TE8thbpPeBlhS1Fi/c5CAbEteW9SHzmf+ZB+5Hc3UWCZKEega
0AWL+G3qV5drQyz6M1IMsKZekmbUYgSqDIpfsrf6De/Oj1yhiperhdNrwR+za/xI
LCpZ8ELesd+Cz/kMsHxZPgq6XxDPGTK3NxoFB9F/OFJXpuSCbuhPO3b/V5FGx/hi
dfMsT1iQIL2wCf47DOp/5NgLUpGW5YN+qoFMlQIDAQABAoIBAQCzy4u312XeW1Cs
Mx6EuOwmh59/ESFmBkZh4rxZKYgrfE5EWlQ7i5SwG4BX+wR6rbNfy6JSmHDXlTkk
CKvvToVNcW6fYHEivDnVojhIERFIJ4+rhQmpBtcNLOQ3/4cZ8X/GxE6b+3lb5l+x
64mnjPLKRaIr5/+TVuebEy0xNTJmjnJ7yiB2HRz7uXEQaVSk/P7KAkkyl/9J3/LM
8N9AX1w6qDaNQZ4/P0++1H4SQenosM/b/GqGTomarEk/GE0NcB9rzmR9VCXa7FRh
WV5jyt9vUrwIEiK/6nUnOkGO8Ei3kB7Y+e+2m6WdaNoU5RAfqXmXa0Q/a0lLRruf
vTMo2WrBAoGBAPRaK4cx76Q+3SJ/wfznaPsMM06OSR8A3ctKdV+ip/lyKtb1W8Pz
k8MYQDH7GwPtSu5QD8doL00pPjugZL/ba7X9nAsI+pinyEErfnB9y7ORNEjIYYzs
DiqDKup7ANgw1gZvznWvb9Ge0WUSXvWS0pFkgootQAf+RmnnbWGH6l6RAoGBAO35
aGUrLro5u9RD24uSXNU3NmojINIQFK5dHAT3yl0BBYstL43AEsye9lX95uMPTvOQ
Cqcn42Hjp/bSe3n0ObyOZeXVrWcDFAfE0wwB1BkvL1lpgnFO9+VQORlH4w3Ppnpo
jcPkR2TFeDaAYtvckhxe/Bk3OnuFmnsQ3VzM75fFAoGBAI6PvS2XeNU+yA3EtA01
hg5SQ+zlHswz2TMuMeSmJZJnhY78f5mHlwIQOAPxGQXlf/4iP9J7en1uPpzTK3S0
M9duK4hUqMA/w5oiIhbHjf0qDnMYVbG+V1V+SZ+cPBXmCDihKreGr5qBKnHpkfV8
v9WL6o1rcRw4wiQvnaV1gsvBAoGBALtzVTczr6gDKCAIn5wuWy+cQSGTsBunjRLX
xuVm5iEiV+KMYkPvAx/pKzMLP96lRVR3ptyKgAKwl7LFk3u50+zh4gQLr35QH2wL
Lw7rNc3srAhrItPsFzqrWX6/cGuFoKYVS239l/sZzRppQPXcpb7xVvTp2whHcir0
Wtnpl+TdAoGAGqKqo2KU3JoY3IuTDUk1dsNAm8jd9EWDh+s1x4aG4N79mwcss5GD
FF8MbFPneK7xQd8L6HisKUDAUi2NOyynM81LAftPkvN6ZuUVeFDfCL4vCA0HUXLD
+VrOhtUZkNNJlLMiVRJuQKUOGlg8PpObqYbstQAf/0/yFJMRHG82Tcg=
-----END RSA PRIVATE KEY-----`

3
pkg/api/datasources.go
View File

@ -5,10 +5,9 @@ import (
"github.com/grafana/grafana/pkg/api/dtos"
"github.com/grafana/grafana/pkg/bus"
"github.com/grafana/grafana/pkg/plugins"
//"github.com/grafana/grafana/pkg/log"
"github.com/grafana/grafana/pkg/middleware"
m "github.com/grafana/grafana/pkg/models"
"github.com/grafana/grafana/pkg/plugins"
"github.com/grafana/grafana/pkg/util"
)

7
pkg/api/metrics.go
View File

@ -8,6 +8,7 @@ import (
"github.com/grafana/grafana/pkg/api/dtos"
"github.com/grafana/grafana/pkg/metrics"
"github.com/grafana/grafana/pkg/middleware"
"github.com/grafana/grafana/pkg/models"
"github.com/grafana/grafana/pkg/tsdb"
"github.com/grafana/grafana/pkg/tsdb/testdata"
"github.com/grafana/grafana/pkg/util"
@ -25,9 +26,9 @@ func QueryMetrics(c *middleware.Context, reqDto dtos.MetricRequest) Response {
MaxDataPoints: query.Get("maxDataPoints").MustInt64(100),
IntervalMs: query.Get("intervalMs").MustInt64(1000),
Model: query,
DataSource: &tsdb.DataSourceInfo{
Name: "Grafana TestDataDB",
PluginId: "grafana-testdata-datasource",
DataSource: &models.DataSource{
Name: "Grafana TestDataDB",
Type: "grafana-testdata-datasource",
},
})
}

95
pkg/models/datasource_cache.go Normal file
View File

@ -0,0 +1,95 @@
package models
import (
"crypto/tls"
"crypto/x509"
"net"
"net/http"
"sync"
"time"
)
type proxyTransportCache struct {
cache map[int64]cachedTransport
sync.Mutex
}
type cachedTransport struct {
updated time.Time
*http.Transport
}
var ptc = proxyTransportCache{
cache: make(map[int64]cachedTransport),
}
func (ds *DataSource) GetHttpClient() (*http.Client, error) {
transport, err := ds.GetHttpTransport()
if err != nil {
return nil, err
}
return &http.Client{
Timeout: time.Duration(30 * time.Second),
Transport: transport,
}, nil
}
func (ds *DataSource) GetHttpTransport() (*http.Transport, error) {
ptc.Lock()
defer ptc.Unlock()
if t, present := ptc.cache[ds.Id]; present && ds.Updated.Equal(t.updated) {
return t.Transport, nil
}
transport := &http.Transport{
TLSClientConfig: &tls.Config{
InsecureSkipVerify: true,
},
Proxy: http.ProxyFromEnvironment,
Dial: (&net.Dialer{
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
}).Dial,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
MaxIdleConns: 100,
IdleConnTimeout: 90 * time.Second,
}
var tlsAuth, tlsAuthWithCACert bool
if ds.JsonData != nil {
tlsAuth = ds.JsonData.Get("tlsAuth").MustBool(false)
tlsAuthWithCACert = ds.JsonData.Get("tlsAuthWithCACert").MustBool(false)
}
if tlsAuth {
transport.TLSClientConfig.InsecureSkipVerify = false
decrypted := ds.SecureJsonData.Decrypt()
if tlsAuthWithCACert && len(decrypted["tlsCACert"]) > 0 {
caPool := x509.NewCertPool()
ok := caPool.AppendCertsFromPEM([]byte(decrypted["tlsCACert"]))
if ok {
transport.TLSClientConfig.RootCAs = caPool
}
}
cert, err := tls.X509KeyPair([]byte(decrypted["tlsClientCert"]), []byte(decrypted["tlsClientKey"]))
if err != nil {
return nil, err
}
transport.TLSClientConfig.Certificates = []tls.Certificate{cert}
}
ptc.cache[ds.Id] = cachedTransport{
Transport: transport,
updated: ds.Updated,
}
return transport, nil
}

157
pkg/models/datasource_cache_test.go Normal file
View File

@ -0,0 +1,157 @@
package models
import (
"testing"
"time"
. "github.com/smartystreets/goconvey/convey"
"github.com/grafana/grafana/pkg/components/simplejson"
"github.com/grafana/grafana/pkg/setting"
"github.com/grafana/grafana/pkg/util"
)
func TestDataSourceCache(t *testing.T) {
Convey("When caching a datasource proxy", t, func() {
clearCache()
ds := DataSource{
Id: 1,
Url: "http://k8s:8001",
Type: "Kubernetes",
}
t1, err := ds.GetHttpTransport()
So(err, ShouldBeNil)
t2, err := ds.GetHttpTransport()
So(err, ShouldBeNil)
Convey("Should be using the cached proxy", func() {
So(t2, ShouldEqual, t1)
})
})
Convey("When getting kubernetes datasource proxy", t, func() {
clearCache()
setting.SecretKey = "password"
json := simplejson.New()
json.Set("tlsAuth", true)
json.Set("tlsAuthWithCACert", true)
t := time.Now()
ds := DataSource{
Url: "http://k8s:8001",
Type: "Kubernetes",
Updated: t.Add(-2 * time.Minute),
}
transport, err := ds.GetHttpTransport()
So(err, ShouldBeNil)
Convey("Should have no cert", func() {
So(transport.TLSClientConfig.InsecureSkipVerify, ShouldEqual, true)
})
ds.JsonData = json
ds.SecureJsonData = map[string][]byte{
"tlsCACert": util.Encrypt([]byte(caCert), "password"),
"tlsClientCert": util.Encrypt([]byte(clientCert), "password"),
"tlsClientKey": util.Encrypt([]byte(clientKey), "password"),
}
ds.Updated = t.Add(-1 * time.Minute)
transport, err = ds.GetHttpTransport()
So(err, ShouldBeNil)
Convey("Should add cert", func() {
So(transport.TLSClientConfig.InsecureSkipVerify, ShouldEqual, false)
So(len(transport.TLSClientConfig.Certificates), ShouldEqual, 1)
})
ds.JsonData = nil
ds.SecureJsonData = map[string][]byte{}
ds.Updated = t
transport, err = ds.GetHttpTransport()
So(err, ShouldBeNil)
Convey("Should remove cert", func() {
So(transport.TLSClientConfig.InsecureSkipVerify, ShouldEqual, true)
So(len(transport.TLSClientConfig.Certificates), ShouldEqual, 0)
})
})
}
func clearCache() {
ptc.Lock()
defer ptc.Unlock()
ptc.cache = make(map[int64]cachedTransport)
}
const caCert string = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`
const clientCert string = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`
const clientKey string = `-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----`

18
pkg/services/alerting/conditions/query.go
View File

@ -119,21 +119,9 @@ func (c *QueryCondition) getRequestForAlertRule(datasource *m.DataSource, timeRa
TimeRange: timeRange,
Queries: []*tsdb.Query{
{
RefId: "A",
Model: c.Query.Model,
DataSource: &tsdb.DataSourceInfo{
Id: datasource.Id,
Name: datasource.Name,
PluginId: datasource.Type,
Url: datasource.Url,
User: datasource.User,
Password: datasource.Password,
Database: datasource.Database,
BasicAuth: datasource.BasicAuth,
BasicAuthUser: datasource.BasicAuthUser,
BasicAuthPassword: datasource.BasicAuthPassword,
JsonData: datasource.JsonData,
},
RefId: "A",
Model: c.Query.Model,
DataSource: datasource,
},
},
}

11
pkg/tsdb/batch.go
View File

@ -1,9 +1,6 @@
package tsdb
import (
"context"
"errors"
)
import "context"
type Batch struct {
DataSourceId int64
@ -24,12 +21,12 @@ func newBatch(dsId int64, queries QuerySlice) *Batch {
}
func (bg *Batch) process(ctx context.Context, queryContext *QueryContext) {
executor := getExecutorFor(bg.Queries[0].DataSource)
executor, err := getExecutorFor(bg.Queries[0].DataSource)
if executor == nil {
if err != nil {
bg.Done = true
result := &BatchResult{
Error: errors.New("Could not find executor for data source type: " + bg.Queries[0].DataSource.PluginId),
Error: err,
QueryResults: make(map[string]*QueryResult),
}
for _, query := range bg.Queries {

22
pkg/tsdb/executor.go
View File

@ -1,6 +1,11 @@
package tsdb
import "context"
import (
"context"
"fmt"
"github.com/grafana/grafana/pkg/models"
)
type Executor interface {
Execute(ctx context.Context, queries QuerySlice, query *QueryContext) *BatchResult
@ -8,17 +13,22 @@ type Executor interface {
var registry map[string]GetExecutorFn
type GetExecutorFn func(dsInfo *DataSourceInfo) Executor
type GetExecutorFn func(dsInfo *models.DataSource) (Executor, error)
func init() {
registry = make(map[string]GetExecutorFn)
}
func getExecutorFor(dsInfo *DataSourceInfo) Executor {
if fn, exists := registry[dsInfo.PluginId]; exists {
return fn(dsInfo)
func getExecutorFor(dsInfo *models.DataSource) (Executor, error) {
if fn, exists := registry[dsInfo.Type]; exists {
executor, err := fn(dsInfo)
if err != nil {
return nil, err
}
return executor, nil
}
return nil
return nil, fmt.Errorf("Could not find executor for data source type: %s", dsInfo.Type)
}
func RegisterExecutor(pluginId string, fn GetExecutorFn) {

10
pkg/tsdb/fake_test.go
View File

@ -1,6 +1,10 @@
package tsdb
import "context"
import (
"context"
"github.com/grafana/grafana/pkg/models"
)
type FakeExecutor struct {
results map[string]*QueryResult
@ -9,11 +13,11 @@ type FakeExecutor struct {
type ResultsFn func(context *QueryContext) *QueryResult
func NewFakeExecutor(dsInfo *DataSourceInfo) *FakeExecutor {
func NewFakeExecutor(dsInfo *models.DataSource) (*FakeExecutor, error) {
return &FakeExecutor{
results: make(map[string]*QueryResult),
resultsFn: make(map[string]ResultsFn),
}
}, nil
}
func (e *FakeExecutor) Execute(ctx context.Context, queries QuerySlice, context *QueryContext) *BatchResult {

24
pkg/tsdb/graphite/graphite.go
View File

@ -14,28 +14,36 @@ import (
"golang.org/x/net/context/ctxhttp"
"github.com/grafana/grafana/pkg/log"
"github.com/grafana/grafana/pkg/models"
"github.com/grafana/grafana/pkg/setting"
"github.com/grafana/grafana/pkg/tsdb"
)
type GraphiteExecutor struct {
*tsdb.DataSourceInfo
*models.DataSource
HttpClient *http.Client
}
func NewGraphiteExecutor(dsInfo *tsdb.DataSourceInfo) tsdb.Executor {
return &GraphiteExecutor{dsInfo}
func NewGraphiteExecutor(datasource *models.DataSource) (tsdb.Executor, error) {
httpClient, err := datasource.GetHttpClient()
if err != nil {
return nil, err
}
return &GraphiteExecutor{
DataSource: datasource,
HttpClient: httpClient,
}, nil
}
var (
glog log.Logger
HttpClient *http.Client
glog log.Logger
)
func init() {
glog = log.New("tsdb.graphite")
tsdb.RegisterExecutor("graphite", NewGraphiteExecutor)
HttpClient = tsdb.GetDefaultClient()
}
func (e *GraphiteExecutor) Execute(ctx context.Context, queries tsdb.QuerySlice, context *tsdb.QueryContext) *tsdb.BatchResult {
@ -66,7 +74,7 @@ func (e *GraphiteExecutor) Execute(ctx context.Context, queries tsdb.QuerySlice,
return result
}
res, err := ctxhttp.Do(ctx, HttpClient, req)
res, err := ctxhttp.Do(ctx, e.HttpClient, req)
if err != nil {
result.Error = err
return result

29
pkg/tsdb/http.go
View File

@ -1,29 +0,0 @@
package tsdb
import (
"crypto/tls"
"net"
"net/http"
"time"
)
func GetDefaultClient() *http.Client {
tr := &http.Transport{
Proxy: http.ProxyFromEnvironment,
DialContext: (&net.Dialer{
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
}).DialContext,
MaxIdleConns: 100,
IdleConnTimeout: 90 * time.Second,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
}
return &http.Client{
Timeout: time.Duration(30 * time.Second),
Transport: tr,
}
}

26
pkg/tsdb/influxdb/influxdb.go
View File

@ -11,34 +11,40 @@ import (
"golang.org/x/net/context/ctxhttp"
"github.com/grafana/grafana/pkg/log"
"github.com/grafana/grafana/pkg/models"
"github.com/grafana/grafana/pkg/setting"
"github.com/grafana/grafana/pkg/tsdb"
)
type InfluxDBExecutor struct {
*tsdb.DataSourceInfo
*models.DataSource
QueryParser *InfluxdbQueryParser
ResponseParser *ResponseParser
HttpClient *http.Client
}
func NewInfluxDBExecutor(dsInfo *tsdb.DataSourceInfo) tsdb.Executor {
func NewInfluxDBExecutor(datasource *models.DataSource) (tsdb.Executor, error) {
httpClient, err := datasource.GetHttpClient()
if err != nil {
return nil, err
}
return &InfluxDBExecutor{
DataSourceInfo: dsInfo,
DataSource: datasource,
QueryParser: &InfluxdbQueryParser{},
ResponseParser: &ResponseParser{},
}
HttpClient: httpClient,
}, nil
}
var (
glog log.Logger
HttpClient *http.Client
glog log.Logger
)
func init() {
glog = log.New("tsdb.influxdb")
tsdb.RegisterExecutor("influxdb", NewInfluxDBExecutor)
HttpClient = tsdb.GetDefaultClient()
}
func (e *InfluxDBExecutor) Execute(ctx context.Context, queries tsdb.QuerySlice, context *tsdb.QueryContext) *tsdb.BatchResult {
@ -63,7 +69,7 @@ func (e *InfluxDBExecutor) Execute(ctx context.Context, queries tsdb.QuerySlice,
return result.WithError(err)
}
resp, err := ctxhttp.Do(ctx, HttpClient, req)
resp, err := ctxhttp.Do(ctx, e.HttpClient, req)
if err != nil {
return result.WithError(err)
}
@ -95,7 +101,7 @@ func (e *InfluxDBExecutor) Execute(ctx context.Context, queries tsdb.QuerySlice,
func (e *InfluxDBExecutor) getQuery(queries tsdb.QuerySlice, context *tsdb.QueryContext) (*Query, error) {
for _, v := range queries {
query, err := e.QueryParser.Parse(v.Model, e.DataSourceInfo)
query, err := e.QueryParser.Parse(v.Model, e.DataSource)
if err != nil {
return nil, err
}

4
pkg/tsdb/influxdb/model_parser.go
View File

@ -4,12 +4,12 @@ import (
"strconv"
"github.com/grafana/grafana/pkg/components/simplejson"
"github.com/grafana/grafana/pkg/tsdb"
"github.com/grafana/grafana/pkg/models"
)
type InfluxdbQueryParser struct{}
func (qp *InfluxdbQueryParser) Parse(model *simplejson.Json, dsInfo *tsdb.DataSourceInfo) (*Query, error) {
func (qp *InfluxdbQueryParser) Parse(model *simplejson.Json, dsInfo *models.DataSource) (*Query, error) {
policy := model.Get("policy").MustString("default")
rawQuery := model.Get("query").MustString("")
useRawQuery := model.Get("rawQuery").MustBool(false)

4
pkg/tsdb/influxdb/model_parser_test.go
View File

@ -4,7 +4,7 @@ import (
"testing"
"github.com/grafana/grafana/pkg/components/simplejson"
"github.com/grafana/grafana/pkg/tsdb"
"github.com/grafana/grafana/pkg/models"
. "github.com/smartystreets/goconvey/convey"
)
@ -12,7 +12,7 @@ func TestInfluxdbQueryParser(t *testing.T) {
Convey("Influxdb query parser", t, func() {
parser := &InfluxdbQueryParser{}
dsInfo := &tsdb.DataSourceInfo{
dsInfo := &models.DataSource{
JsonData: simplejson.New(),
}

17
pkg/tsdb/models.go
View File

@ -2,6 +2,7 @@ package tsdb
import (
"github.com/grafana/grafana/pkg/components/simplejson"
"github.com/grafana/grafana/pkg/models"
"gopkg.in/guregu/null.v3"
)
@ -9,7 +10,7 @@ type Query struct {
RefId string
Model *simplejson.Json
Depends []string
DataSource *DataSourceInfo
DataSource *models.DataSource
Results []*TimeSeries
Exclude bool
MaxDataPoints int64
@ -28,20 +29,6 @@ type Response struct {
Results map[string]*QueryResult `json:"results"`
}
type DataSourceInfo struct {
Id int64
Name string
PluginId string
Url string
Password string
User string
Database string
BasicAuth bool
BasicAuthUser string
BasicAuthPassword string
JsonData *simplejson.Json
}
type BatchTiming struct {
TimeElapsed int64
}

24
pkg/tsdb/opentsdb/opentsdb.go
View File

@ -17,28 +17,36 @@ import (
"gopkg.in/guregu/null.v3"
"github.com/grafana/grafana/pkg/log"
"github.com/grafana/grafana/pkg/models"
"github.com/grafana/grafana/pkg/setting"
"github.com/grafana/grafana/pkg/tsdb"
)
type OpenTsdbExecutor struct {
*tsdb.DataSourceInfo
*models.DataSource
httpClient *http.Client
}
func NewOpenTsdbExecutor(dsInfo *tsdb.DataSourceInfo) tsdb.Executor {
return &OpenTsdbExecutor{dsInfo}
func NewOpenTsdbExecutor(datasource *models.DataSource) (tsdb.Executor, error) {
httpClient, err := datasource.GetHttpClient()
if err != nil {
return nil, err
}
return &OpenTsdbExecutor{
DataSource: datasource,
httpClient: httpClient,
}, nil
}
var (
plog log.Logger
HttpClient *http.Client
plog log.Logger
)
func init() {
plog = log.New("tsdb.opentsdb")
tsdb.RegisterExecutor("opentsdb", NewOpenTsdbExecutor)
HttpClient = tsdb.GetDefaultClient()
}
func (e *OpenTsdbExecutor) Execute(ctx context.Context, queries tsdb.QuerySlice, queryContext *tsdb.QueryContext) *tsdb.BatchResult {
@ -64,7 +72,7 @@ func (e *OpenTsdbExecutor) Execute(ctx context.Context, queries tsdb.QuerySlice,
return result
}
res, err := ctxhttp.Do(ctx, HttpClient, req)
res, err := ctxhttp.Do(ctx, e.httpClient, req)
if err != nil {
result.Error = err
return result

21
pkg/tsdb/prometheus/prometheus.go
View File

@ -9,18 +9,30 @@ import (
"gopkg.in/guregu/null.v3"
"net/http"
"github.com/grafana/grafana/pkg/log"
"github.com/grafana/grafana/pkg/models"
"github.com/grafana/grafana/pkg/tsdb"
"github.com/prometheus/client_golang/api/prometheus"
pmodel "github.com/prometheus/common/model"
)
type PrometheusExecutor struct {
*tsdb.DataSourceInfo
*models.DataSource
Transport *http.Transport
}
func NewPrometheusExecutor(dsInfo *tsdb.DataSourceInfo) tsdb.Executor {
return &PrometheusExecutor{dsInfo}
func NewPrometheusExecutor(dsInfo *models.DataSource) (tsdb.Executor, error) {
transport, err := dsInfo.GetHttpTransport()
if err != nil {
return nil, err
}
return &PrometheusExecutor{
DataSource: dsInfo,
Transport: transport,
}, nil
}
var (
@ -36,7 +48,8 @@ func init() {
func (e *PrometheusExecutor) getClient() (prometheus.QueryAPI, error) {
cfg := prometheus.Config{
Address: e.DataSourceInfo.Url,
Address: e.DataSource.Url,
Transport: e.Transport,
}
client, err := prometheus.New(cfg)

11
pkg/tsdb/testdata/testdata.go vendored
View File

@ -4,19 +4,20 @@ import (
"context"
"github.com/grafana/grafana/pkg/log"
"github.com/grafana/grafana/pkg/models"
"github.com/grafana/grafana/pkg/tsdb"
)
type TestDataExecutor struct {
*tsdb.DataSourceInfo
*models.DataSource
log log.Logger
}
func NewTestDataExecutor(dsInfo *tsdb.DataSourceInfo) tsdb.Executor {
func NewTestDataExecutor(dsInfo *models.DataSource) (tsdb.Executor, error) {
return &TestDataExecutor{
DataSourceInfo: dsInfo,
log: log.New("tsdb.testdata"),
}
DataSource: dsInfo,
log: log.New("tsdb.testdata"),
}, nil
}
func init() {

37
pkg/tsdb/tsdb_test.go
View File

@ -5,6 +5,7 @@ import (
"testing"
"time"
"github.com/grafana/grafana/pkg/models"
. "github.com/smartystreets/goconvey/convey"
)
@ -15,9 +16,9 @@ func TestMetricQuery(t *testing.T) {
Convey("Given 3 queries for 2 data sources", func() {
request := &Request{
Queries: QuerySlice{
{RefId: "A", DataSource: &DataSourceInfo{Id: 1}},
{RefId: "B", DataSource: &DataSourceInfo{Id: 1}},
{RefId: "C", DataSource: &DataSourceInfo{Id: 2}},
{RefId: "A", DataSource: &models.DataSource{Id: 1}},
{RefId: "B", DataSource: &models.DataSource{Id: 1}},
{RefId: "C", DataSource: &models.DataSource{Id: 2}},
},
}
@ -32,9 +33,9 @@ func TestMetricQuery(t *testing.T) {
Convey("Given query 2 depends on query 1", func() {
request := &Request{
Queries: QuerySlice{
{RefId: "A", DataSource: &DataSourceInfo{Id: 1}},
{RefId: "B", DataSource: &DataSourceInfo{Id: 2}},
{RefId: "C", DataSource: &DataSourceInfo{Id: 3}, Depends: []string{"A", "B"}},
{RefId: "A", DataSource: &models.DataSource{Id: 1}},
{RefId: "B", DataSource: &models.DataSource{Id: 2}},
{RefId: "C", DataSource: &models.DataSource{Id: 3}, Depends: []string{"A", "B"}},
},
}
@ -56,7 +57,7 @@ func TestMetricQuery(t *testing.T) {
Convey("When executing request with one query", t, func() {
req := &Request{
Queries: QuerySlice{
{RefId: "A", DataSource: &DataSourceInfo{Id: 1, PluginId: "test"}},
{RefId: "A", DataSource: &models.DataSource{Id: 1, Type: "test"}},
},
}
@ -75,8 +76,8 @@ func TestMetricQuery(t *testing.T) {
Convey("When executing one request with two queries from same data source", t, func() {
req := &Request{
Queries: QuerySlice{
{RefId: "A", DataSource: &DataSourceInfo{Id: 1, PluginId: "test"}},
{RefId: "B", DataSource: &DataSourceInfo{Id: 1, PluginId: "test"}},
{RefId: "A", DataSource: &models.DataSource{Id: 1, Type: "test"}},
{RefId: "B", DataSource: &models.DataSource{Id: 1, Type: "test"}},
},
}
@ -101,9 +102,9 @@ func TestMetricQuery(t *testing.T) {
Convey("When executing one request with three queries from different datasources", t, func() {
req := &Request{
Queries: QuerySlice{
{RefId: "A", DataSource: &DataSourceInfo{Id: 1, PluginId: "test"}},
{RefId: "B", DataSource: &DataSourceInfo{Id: 1, PluginId: "test"}},
{RefId: "C", DataSource: &DataSourceInfo{Id: 2, PluginId: "test"}},
{RefId: "A", DataSource: &models.DataSource{Id: 1, Type: "test"}},
{RefId: "B", DataSource: &models.DataSource{Id: 1, Type: "test"}},
{RefId: "C", DataSource: &models.DataSource{Id: 2, Type: "test"}},
},
}
@ -118,7 +119,7 @@ func TestMetricQuery(t *testing.T) {
Convey("When query uses data source of unknown type", t, func() {
req := &Request{
Queries: QuerySlice{
{RefId: "A", DataSource: &DataSourceInfo{Id: 1, PluginId: "asdasdas"}},
{RefId: "A", DataSource: &models.DataSource{Id: 1, Type: "asdasdas"}},
},
}
@ -130,10 +131,10 @@ func TestMetricQuery(t *testing.T) {
req := &Request{
Queries: QuerySlice{
{
RefId: "A", DataSource: &DataSourceInfo{Id: 1, PluginId: "test"},
RefId: "A", DataSource: &models.DataSource{Id: 1, Type: "test"},
},
{
RefId: "B", DataSource: &DataSourceInfo{Id: 2, PluginId: "test"}, Depends: []string{"A"},
RefId: "B", DataSource: &models.DataSource{Id: 2, Type: "test"}, Depends: []string{"A"},
},
},
}
@ -167,9 +168,9 @@ func TestMetricQuery(t *testing.T) {
}
func registerFakeExecutor() *FakeExecutor {
executor := NewFakeExecutor(nil)
RegisterExecutor("test", func(dsInfo *DataSourceInfo) Executor {
return executor
executor, _ := NewFakeExecutor(nil)
RegisterExecutor("test", func(dsInfo *models.DataSource) (Executor, error) {
return executor, nil
})
return executor