change cluster schema (#2026)

* change cluster schema

* change cluster schema

vendor/sigs.k8s.io/kubefed/pkg/kubefedctl/orphaning/enable.go

@@ -0,0 +1,99 @@
+/*
+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
+}