122 lines
4.3 KiB
Go
122 lines
4.3 KiB
Go
/*
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Copyright 2019 The KubeSphere Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package workspace
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import (
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"context"
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"k8s.io/apimachinery/pkg/api/errors"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/client-go/tools/record"
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tenantv1alpha1 "kubesphere.io/kubesphere/pkg/apis/tenant/v1alpha1"
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"kubesphere.io/kubesphere/pkg/utils/sliceutil"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"sigs.k8s.io/controller-runtime/pkg/controller"
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"sigs.k8s.io/controller-runtime/pkg/handler"
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"sigs.k8s.io/controller-runtime/pkg/manager"
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"sigs.k8s.io/controller-runtime/pkg/reconcile"
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"sigs.k8s.io/controller-runtime/pkg/source"
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)
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// Add creates a new Workspace Controller and adds it to the Manager with default RBAC. The Manager will set fields on the Controller
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// and Start it when the Manager is Started.
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func Add(mgr manager.Manager) error {
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return add(mgr, newReconciler(mgr))
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}
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// newReconciler returns a new reconcile.Reconciler
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func newReconciler(mgr manager.Manager) reconcile.Reconciler {
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return &ReconcileWorkspace{Client: mgr.GetClient(), scheme: mgr.GetScheme(),
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recorder: mgr.GetEventRecorderFor("workspace-controller")}
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}
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// add adds a new Controller to mgr with r as the reconcile.Reconciler
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func add(mgr manager.Manager, r reconcile.Reconciler) error {
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// Create a new controller
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c, err := controller.New("workspace-controller", mgr, controller.Options{Reconciler: r})
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if err != nil {
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return err
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}
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// Watch for changes to Workspace
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err = c.Watch(&source.Kind{Type: &tenantv1alpha1.Workspace{}}, &handler.EnqueueRequestForObject{})
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if err != nil {
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return err
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}
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return nil
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}
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var _ reconcile.Reconciler = &ReconcileWorkspace{}
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// ReconcileWorkspace reconciles a Workspace object
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type ReconcileWorkspace struct {
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client.Client
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scheme *runtime.Scheme
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recorder record.EventRecorder
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}
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// Reconcile reads that state of the cluster for a Workspace object and makes changes based on the state read
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// and what is in the Workspace.Spec
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// +kubebuilder:rbac:groups=tenant.kubesphere.io,resources=workspaces,verbs=get;list;watch;create;update;patch;delete
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// +kubebuilder:rbac:groups=tenant.kubesphere.io,resources=workspaces/status,verbs=get;update;patch
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func (r *ReconcileWorkspace) Reconcile(request reconcile.Request) (reconcile.Result, error) {
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// Fetch the Workspace instance
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instance := &tenantv1alpha1.Workspace{}
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err := r.Get(context.TODO(), request.NamespacedName, instance)
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if err != nil {
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if errors.IsNotFound(err) {
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// Object not found, return. Created objects are automatically garbage collected.
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// For additional cleanup logic use finalizers.
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return reconcile.Result{}, nil
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}
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// Error reading the object - requeue the request.
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return reconcile.Result{}, err
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}
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// name of your custom finalizer
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finalizer := "finalizers.tenant.kubesphere.io"
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if instance.ObjectMeta.DeletionTimestamp.IsZero() {
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// The object is not being deleted, so if it does not have our finalizer,
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// then lets add the finalizer and update the object.
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if !sliceutil.HasString(instance.ObjectMeta.Finalizers, finalizer) {
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instance.ObjectMeta.Finalizers = append(instance.ObjectMeta.Finalizers, finalizer)
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if err := r.Update(context.Background(), instance); err != nil {
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return reconcile.Result{}, err
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}
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}
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} else {
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// The object is being deleted
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if sliceutil.HasString(instance.ObjectMeta.Finalizers, finalizer) {
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// our finalizer is present, so lets handle our external dependency
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// remove our finalizer from the list and update it.
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instance.ObjectMeta.Finalizers = sliceutil.RemoveString(instance.ObjectMeta.Finalizers, func(item string) bool {
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return item == finalizer
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})
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if err := r.Update(context.Background(), instance); err != nil {
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return reconcile.Result{}, err
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}
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}
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// Our finalizer has finished, so the reconciler can do nothing.
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return reconcile.Result{}, nil
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}
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return reconcile.Result{}, nil
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}
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