config,controllers: fix the bug of fail to create role (#617)

Author: acekingke

config/rbac/role.yaml

@@ -48,6 +48,7 @@ rules:
   - configmaps
   - persistentvolumeclaims
   - pods
+  - pods/exec
   - secrets
   - services
   verbs:

controllers/mysqlcluster_controller.go

@@ -58,7 +58,7 @@ type MysqlClusterReconciler struct {
 // +kubebuilder:rbac:groups=mysql.radondb.com,resources=mysqlclusters/status,verbs=get;update;patch
 // +kubebuilder:rbac:groups=mysql.radondb.com,resources=mysqlclusters/finalizers,verbs=update
 // +kubebuilder:rbac:groups=apps,resources=statefulsets,verbs=get;list;watch;create;update;patch;delete
-// +kubebuilder:rbac:groups=core,resources=configmaps;secrets;services;pods;persistentvolumeclaims,verbs=get;list;watch;create;update;patch;delete
+// +kubebuilder:rbac:groups=core,resources=configmaps;secrets;services;pods;pods/exec;persistentvolumeclaims,verbs=get;list;watch;create;update;patch;delete
 // +kubebuilder:rbac:groups=core,resources=events,verbs=get;create;patch
 // +kubebuilder:rbac:groups=core,resources=serviceaccounts,verbs=get;list;watch;create;update
 // +kubebuilder:rbac:groups=rbac.authorization.k8s.io,resources=roles;rolebindings,verbs=get;list;watch;create;update