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multi-cluster bootstrap in antctl (antrea-io#3474)
Add new subcommands to Create or Delete multi-cluster Resources. Signed-off-by: hjiajing <hjiajing@vmware.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| // Copyright 2022 Antrea 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. | ||
|
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| package add | ||
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||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "strings" | ||
|
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| "github.com/spf13/cobra" | ||
| "k8s.io/apimachinery/pkg/types" | ||
| "k8s.io/client-go/rest" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
|
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| multiclusterv1alpha1 "antrea.io/antrea/multicluster/apis/multicluster/v1alpha1" | ||
| "antrea.io/antrea/pkg/antctl/raw" | ||
| multiclusterscheme "antrea.io/antrea/pkg/antctl/raw/multicluster/scheme" | ||
| ) | ||
|
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| type memberClusterOptions struct { | ||
| namespace string | ||
| clusterSet string | ||
| serviceAccount string | ||
| } | ||
|
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| var memberClusterOpt *memberClusterOptions | ||
|
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| var memberClusterExamples = strings.Trim(` | ||
| # Add a new member cluster to a ClusterSet | ||
| $ antctl mc add membercluster <CLUSTER_ID> -n <NAMESPACE> --clusterset <CLUSTERSET_ID> --service-account <SERVICE_ACCOUNT> | ||
| `, "\n") | ||
|
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| func (o *memberClusterOptions) validateAndComplete() error { | ||
| if o.namespace == "" { | ||
| return fmt.Errorf("the Namespace cannot be empty") | ||
| } | ||
| if o.clusterSet == "" { | ||
| return fmt.Errorf("the ClusterSet cannot be empty") | ||
| } | ||
| if o.serviceAccount == "" { | ||
| return fmt.Errorf("the ServiceAccount cannot be empty") | ||
| } | ||
|
|
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| return nil | ||
| } | ||
|
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| func NewMemberClusterCmd() *cobra.Command { | ||
| command := &cobra.Command{ | ||
| Use: "membercluster", | ||
| Args: cobra.MaximumNArgs(1), | ||
| Short: "Add a new member cluster to a ClusterSet", | ||
| Long: "Add a new member cluster to a ClusterSet", | ||
| Example: memberClusterExamples, | ||
| RunE: memberClusterRunE, | ||
| } | ||
|
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| o := &memberClusterOptions{} | ||
| memberClusterOpt = o | ||
| command.Flags().StringVarP(&o.namespace, "namespace", "n", "", "Namespace of member cluster") | ||
| command.Flags().StringVarP(&o.clusterSet, "clusterset", "", "", "The name of target ClusterSet to add a new member cluster") | ||
| command.Flags().StringVarP(&o.serviceAccount, "service-account", "", "", "ServiceAccount of the member cluster") | ||
|
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| return command | ||
| } | ||
|
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| func memberClusterRunE(cmd *cobra.Command, args []string) error { | ||
| if err := memberClusterOpt.validateAndComplete(); err != nil { | ||
| return err | ||
| } | ||
| if len(args) != 1 { | ||
| return fmt.Errorf("exactly one NAME is required, got %d", len(args)) | ||
| } | ||
|
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| kubeconfig, err := raw.ResolveKubeconfig(cmd) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| restconfigTmpl := rest.CopyConfig(kubeconfig) | ||
| raw.SetupKubeconfig(restconfigTmpl) | ||
|
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| k8sClient, err := client.New(kubeconfig, client.Options{Scheme: multiclusterscheme.Scheme}) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| memberClusterID := args[0] | ||
| clusterSet := &multiclusterv1alpha1.ClusterSet{} | ||
| if err := k8sClient.Get(context.TODO(), types.NamespacedName{Name: memberClusterOpt.clusterSet, Namespace: memberClusterOpt.namespace}, clusterSet); err != nil { | ||
| return err | ||
| } | ||
| for _, member := range clusterSet.Spec.Members { | ||
| if member.ClusterID == memberClusterID { | ||
| return fmt.Errorf(`the member cluster "%s" was already added to the ClusterSet "%s"`, memberClusterID, memberClusterOpt.clusterSet) | ||
| } | ||
| } | ||
| clusterSet.Spec.Members = append(clusterSet.Spec.Members, multiclusterv1alpha1.MemberCluster{ClusterID: memberClusterID, ServiceAccount: memberClusterOpt.serviceAccount}) | ||
| if err := k8sClient.Update(context.TODO(), clusterSet); err != nil { | ||
| return err | ||
| } | ||
|
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| fmt.Fprintf(cmd.OutOrStdout(), "The member cluster \"%s\" is added to the ClusterSet \"%s\" successfully\n", memberClusterID, memberClusterOpt.clusterSet) | ||
| return nil | ||
| } |
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