feat(query): inject metricsStorage into UI capabilities

Signed-off-by: hharshhsaini <sainiharsh3311@gmail.com>

Author: hharshhsaini

cmd/jaeger/internal/extension/jaegerquery/internal/server.go

@@ -191,7 +191,9 @@ func initRouter(
 		http.Error(w, "404 page not found", http.StatusNotFound)
 	})
 
-	staticHandlerCloser := RegisterStaticHandler(r, telset.Logger, queryOpts, querySvc.GetCapabilities())
+	caps := querySvc.GetCapabilities()
+	caps.MetricsStorage = metricsQuerySvc != nil
+	staticHandlerCloser := RegisterStaticHandler(r, telset.Logger, queryOpts, caps)
 
 	var handler http.Handler = r
 	if queryOpts.BearerTokenPropagation {

cmd/jaeger/internal/extension/jaegerquery/internal/static_handler_test.go

@@ -76,7 +76,7 @@ func TestRegisterStaticHandler(t *testing.T) {
 			logAccess:                   true,
 			UIConfigPath:                "",
 			expectedUIConfig:            "JAEGER_CONFIG=DEFAULT_CONFIG;",
-			expectedStorageCapabilities: `JAEGER_STORAGE_CAPABILITIES = {"archiveStorage":false};`,
+			expectedStorageCapabilities: `JAEGER_STORAGE_CAPABILITIES = {"archiveStorage":false,"metricsStorage":false};`,
 		},
 		{
 			basePath:                    "/",
@@ -85,7 +85,7 @@ func TestRegisterStaticHandler(t *testing.T) {
 			expectedBaseHTML:            `<base href="/"`,
 			UIConfigPath:                "fixture/ui-config.json",
 			expectedUIConfig:            `JAEGER_CONFIG = {"x":"y"};`,
-			expectedStorageCapabilities: `JAEGER_STORAGE_CAPABILITIES = {"archiveStorage":false};`,
+			expectedStorageCapabilities: `JAEGER_STORAGE_CAPABILITIES = {"archiveStorage":false,"metricsStorage":false};`,
 		},
 		{
 			basePath:                    "/jaeger",
@@ -95,7 +95,7 @@ func TestRegisterStaticHandler(t *testing.T) {
 			archiveStorage:              true,
 			UIConfigPath:                "fixture/ui-config.js",
 			expectedUIConfig:            "function UIConfig(){",
-			expectedStorageCapabilities: `JAEGER_STORAGE_CAPABILITIES = {"archiveStorage":true};`,
+			expectedStorageCapabilities: `JAEGER_STORAGE_CAPABILITIES = {"archiveStorage":true,"metricsStorage":false};`,
 		},
 	}
 	httpClient = &http.Client{

cmd/jaeger/internal/extension/jaegerquery/querysvc/service.go

@@ -38,6 +38,7 @@ type QueryServiceOptions struct {
 // StorageCapabilities is a feature flag for query service
 type StorageCapabilities struct {
 	ArchiveStorage bool `json:"archiveStorage"`
+	MetricsStorage bool `json:"metricsStorage"`
 	// TODO: Maybe add metrics Storage here
 	// SupportRegex     bool
 	// SupportTagFilter bool