github.com/1aal/kubeblocks@v0.0.0-20231107070852-e1c03e598921/pkg/controller/handler/owner_finder.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 handler
    21  
    22  import (
    23  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    24  	"k8s.io/apimachinery/pkg/runtime"
    25  	"k8s.io/apimachinery/pkg/runtime/schema"
    26  	"k8s.io/apimachinery/pkg/types"
    27  	"sigs.k8s.io/controller-runtime/pkg/client"
    28  
    29  	"github.com/1aal/kubeblocks/pkg/controller/model"
    30  )
    31  
    32  type ownerFinder struct {
    33  	baseFinder
    34  }
    35  
    36  var _ Finder = &ownerFinder{}
    37  
    38  // NewOwnerFinder return a finder which finds the owner of an object
    39  func NewOwnerFinder(ownerType runtime.Object) Finder {
    40  	return &ownerFinder{baseFinder{objectType: ownerType}}
    41  }
    42  
    43  func (finder *ownerFinder) Find(ctx *FinderContext, object client.Object) *model.GVKNObjKey {
    44  	ownerRef := metav1.GetControllerOf(object)
    45  	if ownerRef == nil {
    46  		return nil
    47  	}
    48  	gv, err := schema.ParseGroupVersion(ownerRef.APIVersion)
    49  	if err != nil {
    50  		return nil
    51  	}
    52  	gvk := schema.GroupVersionKind{
    53  		Group:   gv.Group,
    54  		Version: gv.Version,
    55  		Kind:    ownerRef.Kind,
    56  	}
    57  	ownerGVK := finder.getGroupVersionKind(&ctx.Scheme)
    58  	if ownerGVK == nil {
    59  		return nil
    60  	}
    61  	if gvk.Group != ownerGVK.Group || gvk.Kind != ownerGVK.Kind {
    62  		return nil
    63  	}
    64  	objKey := types.NamespacedName{
    65  		Namespace: object.GetNamespace(),
    66  		Name:      ownerRef.Name,
    67  	}
    68  	return &model.GVKNObjKey{
    69  		GroupVersionKind: gvk,
    70  		ObjectKey:        objKey,
    71  	}
    72  }