Feature: Allow to install plugins through configuration (#91790)

pkg/services/pluginsintegration/plugininstaller/service.go

@@ -2,31 +2,68 @@ package plugininstaller
 
 import (
 	"context"
+	"errors"
+	"runtime"
 
 	"github.com/grafana/grafana/pkg/infra/log"
+	"github.com/grafana/grafana/pkg/plugins"
 	"github.com/grafana/grafana/pkg/services/featuremgmt"
+	"github.com/grafana/grafana/pkg/services/pluginsintegration/pluginstore"
 	"github.com/grafana/grafana/pkg/setting"
 )
 
 type Service struct {
-	features featuremgmt.FeatureToggles
-	log      log.Logger
+	cfg             *setting.Cfg
+	features        featuremgmt.FeatureToggles
+	log             log.Logger
+	pluginInstaller plugins.Installer
+	pluginStore     pluginstore.Store
 }
 
-func ProvideService(cfg *setting.Cfg, features featuremgmt.FeatureToggles) *Service {
+func ProvideService(cfg *setting.Cfg, features featuremgmt.FeatureToggles, pluginStore pluginstore.Store, pluginInstaller plugins.Installer) *Service {
 	s := &Service{
-		features: features,
-		log:      log.New("plugin.installer"),
+		features:        features,
+		log:             log.New("plugin.backgroundinstaller"),
+		cfg:             cfg,
+		pluginInstaller: pluginInstaller,
+		pluginStore:     pluginStore,
 	}
 	return s
 }
 
 // IsDisabled disables background installation of plugins.
 func (s *Service) IsDisabled() bool {
-	return !s.features.IsEnabled(context.Background(), featuremgmt.FlagBackgroundPluginInstaller)
+	return !s.features.IsEnabled(context.Background(), featuremgmt.FlagBackgroundPluginInstaller) ||
+		len(s.cfg.InstallPlugins) == 0
 }
 
 func (s *Service) Run(ctx context.Context) error {
-	s.log.Debug("PluginInstaller.Run not implemented")
+	compatOpts := plugins.NewCompatOpts(s.cfg.BuildVersion, runtime.GOOS, runtime.GOARCH)
+
+	for _, installPlugin := range s.cfg.InstallPlugins {
+		// Check if the plugin is already installed
+		p, exists := s.pluginStore.Plugin(ctx, installPlugin.ID)
+		if exists {
+			// If it's installed, check if we are looking for a specific version
+			if installPlugin.Version == "" || p.Info.Version == installPlugin.Version {
+				s.log.Debug("Plugin already installed", "pluginId", installPlugin.ID, "version", installPlugin.Version)
+				continue
+			}
+		}
+
+		s.log.Info("Installing plugin", "pluginId", installPlugin.ID, "version", installPlugin.Version)
+		err := s.pluginInstaller.Add(ctx, installPlugin.ID, installPlugin.Version, compatOpts)
+		if err != nil {
+			var dupeErr plugins.DuplicateError
+			if errors.As(err, &dupeErr) {
+				s.log.Debug("Plugin already installed", "pluginId", installPlugin.ID, "version", installPlugin.Version)
+				continue
+			}
+			s.log.Error("Failed to install plugin", "pluginId", installPlugin.ID, "version", installPlugin.Version, "error", err)
+			continue
+		}
+		s.log.Info("Plugin successfully installed", "pluginId", installPlugin.ID, "version", installPlugin.Version)
+	}
+
 	return nil
 }