100 lines
2.9 KiB
Go
100 lines
2.9 KiB
Go
/*
|
|
Copyright 2019 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package orphaning
|
|
|
|
import (
|
|
"io"
|
|
|
|
"github.com/pkg/errors"
|
|
"github.com/spf13/cobra"
|
|
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"k8s.io/klog"
|
|
|
|
ctlutil "sigs.k8s.io/kubefed/pkg/controller/util"
|
|
"sigs.k8s.io/kubefed/pkg/kubefedctl/util"
|
|
)
|
|
|
|
var (
|
|
orphaning_enable_long = `
|
|
Prevents the removal of managed resources from member clusters when their managing federated
|
|
resource is removed. This is accomplished by adding 'kubefed.io/orphan: true' as an annotation to the
|
|
federated resource.
|
|
|
|
Current context is assumed to be a Kubernetes cluster hosting
|
|
the kubefed control plane. Please use the
|
|
--host-cluster-context flag otherwise.`
|
|
|
|
orphan_enable_example = `
|
|
# Enable the orphaning mode for a federated resource of type FederatedDeployment and named foo
|
|
kubefedctl orphaning enable FederatedDeployment foo --host-cluster-context=cluster1`
|
|
)
|
|
|
|
// newCmdEnableOrphaning adds 'kubefed.io/orphan: true' as an annotation to the federated resource
|
|
func newCmdEnableOrphaning(cmdOut io.Writer, config util.FedConfig) *cobra.Command {
|
|
opts := &orphanResource{}
|
|
cmd := &cobra.Command{
|
|
Use: "enable <resource type> <resource name>",
|
|
Short: "Enable the orphaning (i.e. retention) of resources managed by a federated resource upon its removal.",
|
|
Long: orphaning_enable_long,
|
|
Example: orphan_enable_example,
|
|
Run: func(cmd *cobra.Command, args []string) {
|
|
err := opts.Complete(args, config)
|
|
if err != nil {
|
|
klog.Fatalf("Error: %v", err)
|
|
}
|
|
|
|
err = opts.RunEnable(cmdOut, config)
|
|
if err != nil {
|
|
klog.Fatalf("Error: %v", err)
|
|
}
|
|
},
|
|
}
|
|
|
|
flags := cmd.Flags()
|
|
opts.GlobalSubcommandBind(flags)
|
|
err := opts.Bind(flags)
|
|
if err != nil {
|
|
klog.Fatalf("Error: %v", err)
|
|
}
|
|
|
|
return cmd
|
|
}
|
|
|
|
// RunEnable implements the `enable` command.
|
|
func (o *orphanResource) RunEnable(cmdOut io.Writer, config util.FedConfig) error {
|
|
resourceClient, err := o.GetResourceClient(config, cmdOut)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
fedResource, err := o.GetFederatedResource(resourceClient)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if ctlutil.IsOrphaningEnabled(fedResource) {
|
|
return nil
|
|
}
|
|
ctlutil.EnableOrphaning(fedResource)
|
|
_, err = resourceClient.Update(fedResource, metav1.UpdateOptions{})
|
|
if err != nil {
|
|
return errors.Wrapf(err, "Failed to update resource %s %q", fedResource.GetKind(),
|
|
ctlutil.QualifiedName{Name: fedResource.GetName(), Namespace: fedResource.GetNamespace()})
|
|
}
|
|
|
|
return nil
|
|
}
|