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delete_ops.go
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delete_ops.go
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/*
Copyright (C) 2022-2023 ApeCloud Co., Ltd
This file is part of KubeBlocks project
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cluster
import (
"context"
"fmt"
jsonpatch "github.com/evanphx/json-patch"
"github.com/spf13/cobra"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
apitypes "k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/json"
"k8s.io/cli-runtime/pkg/genericiooptions"
cmdutil "k8s.io/kubectl/pkg/cmd/util"
"k8s.io/kubectl/pkg/util/templates"
appsv1alpha1 "github.com/apecloud/kubeblocks/apis/apps/v1alpha1"
"github.com/apecloud/kbcli/pkg/action"
"github.com/apecloud/kbcli/pkg/types"
"github.com/apecloud/kbcli/pkg/util"
)
var (
deleteOpsExample = templates.Examples(`
# delete all ops belong the specified cluster
kbcli cluster delete-ops mycluster
# delete the specified ops belong the specify cluster
kbcli cluster delete-ops --name=mysql-restart-82zxv
`)
)
func NewDeleteOpsCmd(f cmdutil.Factory, streams genericiooptions.IOStreams) *cobra.Command {
o := action.NewDeleteOptions(f, streams, types.OpsGVR())
o.PreDeleteHook = preDeleteOps
cmd := &cobra.Command{
Use: "delete-ops",
Short: "Delete an OpsRequest.",
Example: deleteOpsExample,
ValidArgsFunction: util.ResourceNameCompletionFunc(f, types.ClusterGVR()),
Run: func(cmd *cobra.Command, args []string) {
util.CheckErr(completeForDeleteOps(o, args))
util.CheckErr(o.Run())
},
}
cmd.Flags().StringSliceVar(&o.Names, "name", []string{}, "OpsRequest names")
_ = cmd.RegisterFlagCompletionFunc("name", util.ResourceNameCompletionFunc(f, types.OpsGVR()))
o.AddFlags(cmd)
return cmd
}
func preDeleteOps(o *action.DeleteOptions, obj runtime.Object) error {
unstructured := obj.(*unstructured.Unstructured)
opsRequest := &appsv1alpha1.OpsRequest{}
if err := runtime.DefaultUnstructuredConverter.FromUnstructured(unstructured.Object, opsRequest); err != nil {
return err
}
if opsRequest.Status.Phase != appsv1alpha1.OpsRunningPhase {
return nil
}
if !o.Force {
return fmt.Errorf(`OpsRequest "%s" is Running, you can specify "--force" to delete it`, opsRequest.Name)
}
// remove the finalizers
dynamic, err := o.Factory.DynamicClient()
if err != nil {
return err
}
oldOps := opsRequest.DeepCopy()
opsRequest.Finalizers = []string{}
oldData, err := json.Marshal(oldOps)
if err != nil {
return err
}
newData, err := json.Marshal(opsRequest)
if err != nil {
return err
}
patchBytes, err := jsonpatch.CreateMergePatch(oldData, newData)
if err != nil {
return err
}
_, err = dynamic.Resource(types.OpsGVR()).Namespace(opsRequest.Namespace).Patch(context.TODO(),
opsRequest.Name, apitypes.MergePatchType, patchBytes, metav1.PatchOptions{})
return err
}
// completeForDeleteOps completes cmd for delete OpsRequest, if resource name
// is not specified, construct a label selector based on the cluster name to
// delete all OpeRequests belonging to the cluster.
func completeForDeleteOps(o *action.DeleteOptions, args []string) error {
// If resource name is not empty, delete these resources by name, do not need
// to construct the label selector.
if len(o.Names) > 0 {
o.ConfirmedNames = o.Names
return nil
}
if len(args) == 0 {
return fmt.Errorf("missing cluster name")
}
if len(args) > 1 {
return fmt.Errorf("only support to delete the OpsRequests of one cluster")
}
o.ConfirmedNames = args
// If OpsRequest name is unset and cluster name is set, delete all OpsRequests belonging to the cluster
o.LabelSelector = util.BuildLabelSelectorByNames(o.LabelSelector, args)
return nil
}