Plugins: Set backend metadata property for core plugins (#43349) (#43475)

Ref #42648
Ref #42781

(cherry picked from commit 7d3bdb6d1b)

Co-authored-by: Marcus Efraimsson <marcus.efraimsson@gmail.com>

pkg/plugins/manager/loader/loader_test.go

@@ -79,6 +79,7 @@ func TestLoader_Load(t *testing.T) {
 						Metrics:      true,
 						Alerting:     true,
 						Logs:         true,
+						Backend:      true,
 						QueryOptions: map[string]bool{"minInterval": true},
 					},
 					Module:    "app/plugins/datasource/cloudwatch/module",

public/app/plugins/datasource/cloud-monitoring/plugin.json

@@ -7,6 +7,7 @@
   "metrics": true,
   "alerting": true,
   "annotations": true,
+  "backend": true,
   "includes": [
     {
       "type": "dashboard",

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

@@ -7,6 +7,7 @@
   "logs": true,
   "alerting": true,
   "annotations": true,
+  "backend": true,
   "includes": [
     { "type": "dashboard", "name": "EC2", "path": "dashboards/ec2.json" },
     { "type": "dashboard", "name": "EBS", "path": "dashboards/EBS.json" },

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

@@ -22,6 +22,7 @@
   "annotations": true,
   "metrics": true,
   "logs": true,
+  "backend": true,
 
   "queryOptions": {
     "minInterval": true

public/app/plugins/datasource/grafana-azure-monitor-datasource/plugin.json

@@ -51,5 +51,6 @@
 
   "metrics": true,
   "annotations": true,
-  "alerting": true
+  "alerting": true,
+  "backend": true
 }

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

@@ -12,6 +12,7 @@
   "metrics": true,
   "alerting": true,
   "annotations": true,
+  "backend": true,
 
   "queryOptions": {
     "maxDataPoints": true,

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

@@ -9,6 +9,7 @@
   "logs": true,
   "annotations": true,
   "alerting": true,
+  "backend": true,
 
   "queryOptions": {
     "minInterval": true

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

@@ -9,6 +9,7 @@
   "alerting": true,
   "annotations": true,
   "streaming": true,
+  "backend": true,
 
   "queryOptions": {
     "maxDataPoints": true

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

@@ -19,6 +19,7 @@
   "alerting": true,
   "annotations": true,
   "metrics": true,
+  "backend": true,
 
   "queryOptions": {
     "minInterval": true

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

@@ -19,6 +19,7 @@
   "alerting": true,
   "annotations": true,
   "metrics": true,
+  "backend": true,
 
   "queryOptions": {
     "minInterval": true

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

@@ -8,6 +8,7 @@
   "defaultMatchFormat": "pipe",
   "annotations": true,
   "alerting": true,
+  "backend": true,
 
   "info": {
     "description": "Open source time series database",

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

@@ -19,6 +19,7 @@
   "alerting": true,
   "annotations": true,
   "metrics": true,
+  "backend": true,
 
   "queryOptions": {
     "minInterval": true

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

@@ -65,6 +65,7 @@
   "metrics": true,
   "alerting": true,
   "annotations": true,
+  "backend": true,
   "queryOptions": {
     "minInterval": true
   },

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

@@ -10,6 +10,7 @@
   "logs": false,
   "streaming": false,
   "tracing": true,
+  "backend": true,
 
   "info": {
     "description": "High volume, minimal dependency trace storage.  OSS tracing solution from Grafana Labs.",

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

@@ -7,6 +7,7 @@
   "logs": true,
   "alerting": true,
   "annotations": true,
+  "backend": true,
 
   "queryOptions": {
     "minInterval": true,