133 lines
4.2 KiB
Go
133 lines
4.2 KiB
Go
/*
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Copyright 2020 The Flux CD contributors.
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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 controllers
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import (
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"context"
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"fmt"
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"strings"
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"time"
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"github.com/fluxcd/pkg/runtime/dependency"
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"github.com/go-logr/logr"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/client-go/util/retry"
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ctrl "sigs.k8s.io/controller-runtime"
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"sigs.k8s.io/controller-runtime/pkg/client"
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kustomizev1 "github.com/fluxcd/kustomize-controller/api/v1alpha1"
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consts "github.com/fluxcd/pkg/runtime"
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sourcev1 "github.com/fluxcd/source-controller/api/v1alpha1"
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)
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// GitRepositoryWatcher watches GitRepository objects for revision changes
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// and triggers a reconcile for all the Kustomizations that reference a changed source
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type GitRepositoryWatcher struct {
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client.Client
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Log logr.Logger
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Scheme *runtime.Scheme
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}
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// +kubebuilder:rbac:groups=source.toolkit.fluxcd.io,resources=gitrepositories,verbs=get;list;watch
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// +kubebuilder:rbac:groups=source.toolkit.fluxcd.io,resources=gitrepositories/status,verbs=get
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func (r *GitRepositoryWatcher) Reconcile(req ctrl.Request) (ctrl.Result, error) {
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ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
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defer cancel()
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var repo sourcev1.GitRepository
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if err := r.Get(ctx, req.NamespacedName, &repo); err != nil {
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return ctrl.Result{}, client.IgnoreNotFound(err)
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}
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log := r.Log.WithValues(strings.ToLower(repo.Kind), req.NamespacedName)
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log.Info("new artifact detected")
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// get the list of kustomizations that are using this Git repository
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var list kustomizev1.KustomizationList
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if err := r.List(ctx, &list,
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client.MatchingFields{kustomizev1.SourceIndexKey: fmt.Sprintf("%s/%s", req.Namespace, req.Name)}); err != nil {
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log.Error(err, "unable to list kustomizations")
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return ctrl.Result{}, err
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}
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var dd []dependency.Dependent
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for _, d := range list.Items {
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dd = append(dd, d)
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}
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sorted, err := dependency.Sort(dd)
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if err != nil {
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log.Error(err, "unable to dependency sort kustomizations")
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return ctrl.Result{}, err
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}
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// trigger apply for each kustomization using this Git repository
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for _, k := range sorted {
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name := types.NamespacedName(k)
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if err := r.requestReconciliation(name); err != nil {
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log.Error(err, "unable to annotate Kustomization", "kustomization", name)
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continue
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}
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log.Info("requested immediate reconciliation", "kustomization", name)
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}
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return ctrl.Result{}, nil
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}
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func (r *GitRepositoryWatcher) SetupWithManager(mgr ctrl.Manager) error {
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// create a kustomization index based on Git repository name
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err := mgr.GetFieldIndexer().IndexField(context.TODO(), &kustomizev1.Kustomization{}, kustomizev1.SourceIndexKey,
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func(rawObj runtime.Object) []string {
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k := rawObj.(*kustomizev1.Kustomization)
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if k.Spec.SourceRef.Kind == sourcev1.GitRepositoryKind {
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namespace := k.GetNamespace()
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if k.Spec.SourceRef.Namespace != "" {
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namespace = k.Spec.SourceRef.Namespace
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}
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return []string{fmt.Sprintf("%s/%s", namespace, k.Spec.SourceRef.Name)}
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}
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return nil
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},
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)
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if err != nil {
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return err
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}
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return ctrl.NewControllerManagedBy(mgr).
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For(&sourcev1.GitRepository{}).
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WithEventFilter(GitRepositoryRevisionChangePredicate{}).
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Complete(r)
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}
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func (r *GitRepositoryWatcher) requestReconciliation(name types.NamespacedName) error {
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var kustomization kustomizev1.Kustomization
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return retry.RetryOnConflict(retry.DefaultBackoff, func() (err error) {
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if err := r.Get(context.TODO(), name, &kustomization); err != nil {
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return err
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}
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if kustomization.Annotations == nil {
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kustomization.Annotations = make(map[string]string)
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}
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kustomization.Annotations[consts.ReconcileAtAnnotation] = metav1.Now().String()
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err = r.Update(context.TODO(), &kustomization)
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return
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})
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}
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