azuremonitor: fix for app insights azure china url (#23877)

pkg/tsdb/azuremonitor/applicationinsights-datasource.go

@@ -5,6 +5,13 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"path"
+	"strings"
+	"time"
+
 	"github.com/grafana/grafana/pkg/api/pluginproxy"
 	"github.com/grafana/grafana/pkg/components/null"
 	"github.com/grafana/grafana/pkg/components/simplejson"
@@ -14,12 +21,6 @@ import (
 	"github.com/grafana/grafana/pkg/tsdb"
 	"github.com/opentracing/opentracing-go"
 	"golang.org/x/net/context/ctxhttp"
-	"io/ioutil"
-	"net/http"
-	"net/url"
-	"path"
-	"strings"
-	"time"
 )
 
 // ApplicationInsightsDatasource calls the application insights query API's
@@ -237,19 +238,17 @@ func (e *ApplicationInsightsDatasource) createRequest(ctx context.Context, dsInf
 		return nil, errors.New("Unable to find datasource plugin Azure Application Insights")
 	}
 
-	var appInsightsRoute *plugins.AppPluginRoute
-	for _, route := range plugin.Routes {
-		if route.Path == "appinsights" {
-			appInsightsRoute = route
-			break
-		}
+	cloudName := dsInfo.JsonData.Get("cloudName").MustString("azuremonitor")
+	appInsightsRoute, pluginRouteName, err := e.getPluginRoute(plugin, cloudName)
+	if err != nil {
+		return nil, err
 	}
 
-	appInsightsAppId := dsInfo.JsonData.Get("appInsightsAppId").MustString()
-	proxyPass := fmt.Sprintf("appinsights/v1/apps/%s", appInsightsAppId)
+	appInsightsAppID := dsInfo.JsonData.Get("appInsightsAppId").MustString()
+	proxyPass := fmt.Sprintf("%s/v1/apps/%s", pluginRouteName, appInsightsAppID)
 
 	u, _ := url.Parse(dsInfo.Url)
-	u.Path = path.Join(u.Path, fmt.Sprintf("/v1/apps/%s", appInsightsAppId))
+	u.Path = path.Join(u.Path, fmt.Sprintf("/v1/apps/%s", appInsightsAppID))
 
 	req, err := http.NewRequest(http.MethodGet, u.String(), nil)
 	if err != nil {
@@ -264,6 +263,25 @@ func (e *ApplicationInsightsDatasource) createRequest(ctx context.Context, dsInf
 	return req, nil
 }
 
+func (e *ApplicationInsightsDatasource) getPluginRoute(plugin *plugins.DataSourcePlugin, cloudName string) (*plugins.AppPluginRoute, string, error) {
+	pluginRouteName := "appinsights"
+
+	if cloudName == "chinaazuremonitor" {
+		pluginRouteName = "chinaappinsights"
+	}
+
+	var pluginRoute *plugins.AppPluginRoute
+
+	for _, route := range plugin.Routes {
+		if route.Path == pluginRouteName {
+			pluginRoute = route
+			break
+		}
+	}
+
+	return pluginRoute, pluginRouteName, nil
+}
+
 func (e *ApplicationInsightsDatasource) parseTimeSeriesFromQuery(body []byte, query *ApplicationInsightsQuery) (tsdb.TimeSeriesSlice, *simplejson.Json, error) {
 	var data ApplicationInsightsQueryResponse
 	err := json.Unmarshal(body, &data)

pkg/tsdb/azuremonitor/applicationinsights-datasource_test.go

@@ -7,9 +7,13 @@ import (
 	"testing"
 	"time"
 
+	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp/cmpopts"
 	"github.com/grafana/grafana/pkg/components/simplejson"
 	"github.com/grafana/grafana/pkg/models"
+	"github.com/grafana/grafana/pkg/plugins"
 	"github.com/grafana/grafana/pkg/tsdb"
+	"github.com/stretchr/testify/require"
 
 	. "github.com/smartystreets/goconvey/convey"
 )
@@ -314,3 +318,68 @@ func TestApplicationInsightsDatasource(t *testing.T) {
 		})
 	})
 }
+
+func TestPluginRoutes(t *testing.T) {
+	datasource := &ApplicationInsightsDatasource{}
+	plugin := &plugins.DataSourcePlugin{
+		Routes: []*plugins.AppPluginRoute{
+			{
+				Path:   "appinsights",
+				Method: "GET",
+				URL:    "https://api.applicationinsights.io",
+				Headers: []plugins.AppPluginRouteHeader{
+					{Name: "X-API-Key", Content: "{{.SecureJsonData.appInsightsApiKey}}"},
+					{Name: "x-ms-app", Content: "Grafana"},
+				},
+			},
+			{
+				Path:   "chinaappinsights",
+				Method: "GET",
+				URL:    "https://api.applicationinsights.azure.cn",
+				Headers: []plugins.AppPluginRouteHeader{
+					{Name: "X-API-Key", Content: "{{.SecureJsonData.appInsightsApiKey}}"},
+					{Name: "x-ms-app", Content: "Grafana"},
+				},
+			},
+		},
+	}
+
+	tests := []struct {
+		name              string
+		cloudName         string
+		expectedRouteName string
+		expectedRouteURL  string
+		Err               require.ErrorAssertionFunc
+	}{
+		{
+			name:              "plugin proxy route for the Azure public cloud",
+			cloudName:         "azuremonitor",
+			expectedRouteName: "appinsights",
+			expectedRouteURL:  "https://api.applicationinsights.io",
+			Err:               require.NoError,
+		},
+		{
+			name:              "plugin proxy route for the Azure China cloud",
+			cloudName:         "chinaazuremonitor",
+			expectedRouteName: "chinaappinsights",
+			expectedRouteURL:  "https://api.applicationinsights.azure.cn",
+			Err:               require.NoError,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			route, routeName, err := datasource.getPluginRoute(plugin, tt.cloudName)
+			tt.Err(t, err)
+
+			if diff := cmp.Diff(tt.expectedRouteURL, route.URL, cmpopts.EquateNaNs()); diff != "" {
+				t.Errorf("Result mismatch (-want +got):\n%s", diff)
+			}
+
+			if diff := cmp.Diff(tt.expectedRouteName, routeName, cmpopts.EquateNaNs()); diff != "" {
+				t.Errorf("Result mismatch (-want +got):\n%s", diff)
+			}
+		})
+	}
+
+}