Access control: expose SA frontend to users with the right permissions (#47727) (#47766)

* expose frontend to users with permissions

* cover the ui endpoints

* fix permissions

(cherry picked from commit e50bd5cac8)

Co-authored-by: Ieva <ieva.vasiljeva@grafana.com>

pkg/api/accesscontrol.go

@@ -5,6 +5,7 @@ import (
 	ac "github.com/grafana/grafana/pkg/services/accesscontrol"
 	"github.com/grafana/grafana/pkg/services/dashboards"
 	"github.com/grafana/grafana/pkg/services/datasources"
+	"github.com/grafana/grafana/pkg/services/serviceaccounts"
 	"github.com/grafana/grafana/pkg/setting"
 )
 
@@ -462,6 +463,12 @@ var teamsEditAccessEvaluator = ac.EvalAll(
 	),
 )
 
+// apiKeyAccessEvaluator is used to protect the "Configuration > API keys" page access
+var apiKeyAccessEvaluator = ac.EvalPermission(ac.ActionAPIKeyRead)
+
+// serviceAccountAccessEvaluator is used to protect the "Configuration > Service accounts" page access
+var serviceAccountAccessEvaluator = ac.EvalPermission(serviceaccounts.ActionRead)
+
 // Metadata helpers
 // getAccessControlMetadata returns the accesscontrol metadata associated with a given resource
 func (hs *HTTPServer) getAccessControlMetadata(c *models.ReqContext,