github.com/1aal/kubeblocks@v0.0.0-20231107070852-e1c03e598921/controllers/apps/transformer_ownership.go (about)

     1  /*
     2  Copyright (C) 2022-2023 ApeCloud Co., Ltd
     3  
     4  This file is part of KubeBlocks project
     5  
     6  This program is free software: you can redistribute it and/or modify
     7  it under the terms of the GNU Affero General Public License as published by
     8  the Free Software Foundation, either version 3 of the License, or
     9  (at your option) any later version.
    10  
    11  This program is distributed in the hope that it will be useful
    12  but WITHOUT ANY WARRANTY; without even the implied warranty of
    13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    14  GNU Affero General Public License for more details.
    15  
    16  You should have received a copy of the GNU Affero General Public License
    17  along with this program.  If not, see <http://www.gnu.org/licenses/>.
    18  */
    19  
    20  package apps
    21  
    22  import (
    23  	rbacv1 "k8s.io/api/rbac/v1"
    24  	"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
    25  
    26  	appsv1alpha1 "github.com/1aal/kubeblocks/apis/apps/v1alpha1"
    27  	"github.com/1aal/kubeblocks/pkg/constant"
    28  	"github.com/1aal/kubeblocks/pkg/controller/graph"
    29  	"github.com/1aal/kubeblocks/pkg/controller/model"
    30  	intctrlutil "github.com/1aal/kubeblocks/pkg/controllerutil"
    31  )
    32  
    33  // OwnershipTransformer adds finalizer to all none cluster objects
    34  type OwnershipTransformer struct{}
    35  
    36  var _ graph.Transformer = &OwnershipTransformer{}
    37  
    38  func (f *OwnershipTransformer) Transform(ctx graph.TransformContext, dag *graph.DAG) error {
    39  	transCtx, _ := ctx.(*clusterTransformContext)
    40  	graphCli, _ := transCtx.Client.(model.GraphClient)
    41  	cluster := transCtx.Cluster
    42  
    43  	objects := graphCli.FindAll(dag, &appsv1alpha1.Cluster{}, model.HaveDifferentTypeWithOption)
    44  
    45  	controllerutil.AddFinalizer(cluster, constant.DBClusterFinalizerName)
    46  	for _, object := range objects {
    47  		// TODO: skip to set ownership for ClusterRoleBinding which is a cluster-scoped object.
    48  		if _, ok := object.(*rbacv1.ClusterRoleBinding); ok {
    49  			continue
    50  		}
    51  		if err := intctrlutil.SetOwnership(cluster, object, rscheme, constant.DBClusterFinalizerName); err != nil {
    52  			if _, ok := err.(*controllerutil.AlreadyOwnedError); ok {
    53  				continue
    54  			}
    55  			return err
    56  		}
    57  	}
    58  	return nil
    59  }