122 lines
4.1 KiB
Go
122 lines
4.1 KiB
Go
package util
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import (
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"context"
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"fmt"
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"reflect"
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apierrors "k8s.io/apimachinery/pkg/api/errors"
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"k8s.io/apimachinery/pkg/api/meta"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/klog/v2"
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"sigs.k8s.io/controller-runtime/pkg/client"
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clusterv1alpha1 "github.com/karmada-io/karmada/pkg/apis/cluster/v1alpha1"
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karmadaclientset "github.com/karmada-io/karmada/pkg/generated/clientset/versioned"
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)
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const (
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// NamespaceClusterLease is the namespace which cluster lease are stored.
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NamespaceClusterLease = "karmada-cluster"
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)
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// IsClusterReady tells whether the cluster status in 'Ready' condition.
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func IsClusterReady(clusterStatus *clusterv1alpha1.ClusterStatus) bool {
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return meta.IsStatusConditionTrue(clusterStatus.Conditions, clusterv1alpha1.ClusterConditionReady)
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}
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// GetCluster returns the given Cluster resource
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func GetCluster(hostClient client.Client, clusterName string) (*clusterv1alpha1.Cluster, error) {
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cluster := &clusterv1alpha1.Cluster{}
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if err := hostClient.Get(context.TODO(), types.NamespacedName{Name: clusterName}, cluster); err != nil {
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return nil, err
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}
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return cluster, nil
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}
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// CreateClusterObject create cluster object in karmada control plane
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func CreateClusterObject(controlPlaneClient *karmadaclientset.Clientset, clusterObj *clusterv1alpha1.Cluster) (*clusterv1alpha1.Cluster, error) {
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cluster, exist, err := GetClusterWithKarmadaClient(controlPlaneClient, clusterObj.Name)
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if err != nil {
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return nil, err
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}
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if exist {
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return cluster, fmt.Errorf("cluster(%s) already exist", clusterObj.Name)
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}
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if cluster, err = createCluster(controlPlaneClient, clusterObj); err != nil {
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klog.Warningf("failed to create cluster(%s). error: %v", clusterObj.Name, err)
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return nil, err
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}
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return cluster, nil
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}
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// CreateOrUpdateClusterObject create cluster object in karmada control plane,
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// if cluster object has been existed and different from input clusterObj, update it.
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func CreateOrUpdateClusterObject(controlPlaneClient *karmadaclientset.Clientset, clusterObj *clusterv1alpha1.Cluster) (*clusterv1alpha1.Cluster, error) {
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cluster, exist, err := GetClusterWithKarmadaClient(controlPlaneClient, clusterObj.Name)
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if err != nil {
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return nil, err
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}
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if exist {
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if reflect.DeepEqual(cluster.Spec, clusterObj.Spec) {
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klog.Warningf("cluster(%s) already exist and newest", clusterObj.Name)
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return cluster, nil
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}
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cluster.Spec = clusterObj.Spec
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cluster, err = updateCluster(controlPlaneClient, cluster)
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if err != nil {
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klog.Warningf("failed to create cluster(%s). error: %v", clusterObj.Name, err)
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return nil, err
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}
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return cluster, nil
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}
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if cluster, err = createCluster(controlPlaneClient, clusterObj); err != nil {
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klog.Warningf("failed to create cluster(%s). error: %v", clusterObj.Name, err)
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return nil, err
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}
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return cluster, nil
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}
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// GetClusterWithKarmadaClient tells if a cluster already joined to control plane.
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func GetClusterWithKarmadaClient(client karmadaclientset.Interface, name string) (*clusterv1alpha1.Cluster, bool, error) {
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cluster, err := client.ClusterV1alpha1().Clusters().Get(context.TODO(), name, metav1.GetOptions{})
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if err != nil {
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if apierrors.IsNotFound(err) {
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return nil, false, nil
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}
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klog.Warningf("failed to retrieve cluster(%s). error: %v", cluster.Name, err)
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return nil, false, err
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}
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return cluster, true, nil
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}
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func createCluster(controlPlaneClient karmadaclientset.Interface, cluster *clusterv1alpha1.Cluster) (*clusterv1alpha1.Cluster, error) {
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newCluster, err := controlPlaneClient.ClusterV1alpha1().Clusters().Create(context.TODO(), cluster, metav1.CreateOptions{})
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if err != nil {
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klog.Warningf("failed to create cluster(%s). error: %v", cluster.Name, err)
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return nil, err
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}
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return newCluster, nil
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}
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func updateCluster(controlPlaneClient karmadaclientset.Interface, cluster *clusterv1alpha1.Cluster) (*clusterv1alpha1.Cluster, error) {
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newCluster, err := controlPlaneClient.ClusterV1alpha1().Clusters().Update(context.TODO(), cluster, metav1.UpdateOptions{})
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if err != nil {
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klog.Warningf("failed to update cluster(%s). error: %v", cluster.Name, err)
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return nil, err
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}
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return newCluster, nil
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}
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