Access Control: Add fixed role loader service (#112747)

pkg/services/accesscontrol/fixedrolesloader.go

@@ -0,0 +1,57 @@
+package accesscontrol
+
+import (
+	"context"
+
+	"github.com/grafana/dskit/services"
+
+	"github.com/grafana/grafana/pkg/infra/log"
+	"github.com/grafana/grafana/pkg/services/featuremgmt"
+)
+
+const FixedRolesLoaderServiceName = "accesscontrol.fixedrolesloader"
+
+type FixedRolesLoader struct {
+	services.NamedService
+
+	roleRegistry RoleRegistry
+	features     featuremgmt.FeatureToggles
+	log          log.Logger
+}
+
+func ProvideFixedRolesLoader(roleRegistry RoleRegistry, features featuremgmt.FeatureToggles) *FixedRolesLoader {
+	loader := &FixedRolesLoader{
+		roleRegistry: roleRegistry,
+		features:     features,
+		log:          log.New(FixedRolesLoaderServiceName),
+	}
+
+	loader.NamedService = services.NewBasicService(loader.starting, loader.running, nil).WithName(FixedRolesLoaderServiceName)
+	return loader
+}
+
+func (l *FixedRolesLoader) starting(ctx context.Context) error {
+	ctxLogger := l.log.FromContext(ctx)
+
+	ctxLogger.Debug("Registering fixed roles")
+	if err := l.roleRegistry.RegisterFixedRoles(ctx); err != nil {
+		ctxLogger.Error("Failed to register fixed roles", "error", err)
+		return err
+	}
+
+	return nil
+}
+
+func (l *FixedRolesLoader) running(ctx context.Context) error {
+	<-ctx.Done()
+	return nil
+}
+
+func (l *FixedRolesLoader) IsDisabled() bool {
+	return !l.features.IsEnabledGlobally(featuremgmt.FlagPluginStoreServiceLoading)
+}
+
+func (l *FixedRolesLoader) Run(ctx context.Context) error {
+	<-ctx.Done()
+	return nil
+}