Plugins: Add ability to run backend plugins in containers (#110534)

* add client cfg for containers

* remove unused code

* add field for skip host env for proto client

* add docker to Swagger ignore

* add to enterprise swagger gen

* undo go.mod changes

* pass container image

* propagate container image field

pkg/services/featuremgmt/registry.go

@@ -1993,6 +1993,14 @@ var (
 			Owner:             grafanaPluginsPlatformSquad,
 			Expression:        "false",
 		},
+		{
+			Name:            "pluginContainers",
+			Description:     "Enables running plugins in containers",
+			Stage:           FeatureStagePrivatePreview,
+			Owner:           grafanaPluginsPlatformSquad,
+			Expression:      "false",
+			RequiresRestart: true,
+		},
 	}
 )
 

pkg/services/featuremgmt/toggles_gen.csv

@@ -255,3 +255,4 @@ graphiteBackendMode,privatePreview,@grafana/partner-datasources,false,false,fals
 azureResourcePickerUpdates,preview,@grafana/partner-datasources,false,false,true
 prometheusTypeMigration,experimental,@grafana/partner-datasources,false,true,false
 dskitBackgroundServices,experimental,@grafana/plugins-platform-backend,false,true,false
+pluginContainers,privatePreview,@grafana/plugins-platform-backend,false,true,false

pkg/services/featuremgmt/toggles_gen.go

@@ -1030,4 +1030,8 @@ const (
 	// FlagDskitBackgroundServices
 	// Enables dskit background service wrapper
 	FlagDskitBackgroundServices = "dskitBackgroundServices"
+
+	// FlagPluginContainers
+	// Enables running plugins in containers
+	FlagPluginContainers = "pluginContainers"
 )

pkg/services/featuremgmt/toggles_gen.json

@@ -2593,6 +2593,20 @@
         "expression": "false"
       }
     },
+    {
+      "metadata": {
+        "name": "pluginContainers",
+        "resourceVersion": "1756911074581",
+        "creationTimestamp": "2025-09-03T14:51:14Z"
+      },
+      "spec": {
+        "description": "Enables running plugins in containers",
+        "stage": "privatePreview",
+        "codeowner": "@grafana/plugins-platform-backend",
+        "requiresRestart": true,
+        "expression": "false"
+      }
+    },
     {
       "metadata": {
         "name": "pluginProxyPreserveTrailingSlash",

pkg/services/pluginsintegration/pluginconfig/config.go

@@ -4,13 +4,12 @@ import (
 	"fmt"
 	"strings"
 
-	"github.com/grafana/grafana/pkg/util"
-
 	"github.com/grafana/grafana-azure-sdk-go/v2/azsettings"
 
 	"github.com/grafana/grafana/pkg/plugins/config"
 	"github.com/grafana/grafana/pkg/services/featuremgmt"
 	"github.com/grafana/grafana/pkg/setting"
+	"github.com/grafana/grafana/pkg/util"
 )
 
 // ProvidePluginManagementConfig returns a new config.PluginManagementCfg.