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Merge pull request #3 from SAP/refactoring
refactoring (towards adding non-flux sources)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,163 @@ | ||
| /* | ||
| SPDX-FileCopyrightText: 2024 SAP SE or an SAP affiliate company and component-operator contributors | ||
| SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
|
|
||
| package flux | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
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| "github.com/pkg/errors" | ||
|
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| apitypes "k8s.io/apimachinery/pkg/types" | ||
| "k8s.io/client-go/util/workqueue" | ||
| "sigs.k8s.io/controller-runtime/pkg/builder" | ||
| "sigs.k8s.io/controller-runtime/pkg/cache" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| "sigs.k8s.io/controller-runtime/pkg/event" | ||
| "sigs.k8s.io/controller-runtime/pkg/handler" | ||
| "sigs.k8s.io/controller-runtime/pkg/manager" | ||
| "sigs.k8s.io/controller-runtime/pkg/reconcile" | ||
|
|
||
| fluxsourcev1 "github.com/fluxcd/source-controller/api/v1" | ||
| fluxsourcev1beta2 "github.com/fluxcd/source-controller/api/v1beta2" | ||
|
|
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| operatorv1alpha1 "github.com/sap/component-operator/api/v1alpha1" | ||
| "github.com/sap/component-operator/internal/object" | ||
| ) | ||
|
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| type Source interface { | ||
| object.Object | ||
| fluxsourcev1.Source | ||
| } | ||
|
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| const ( | ||
| gitRepositoryIndexKey string = ".metadata.flux.gitRepository" | ||
| ociRepositoryIndexKey string = ".metadata.flux.ociRepository" | ||
| bucketIndexKey string = ".metadata.flux.bucket" | ||
| helmChartIndexKey string = ".metadata.flux.helmChart" | ||
| ) | ||
|
|
||
| func SetupCache(mgr manager.Manager, blder *builder.Builder) error { | ||
| // TODO: should we pass a meaningful context? | ||
| if err := mgr.GetCache().IndexField(context.TODO(), &operatorv1alpha1.Component{}, gitRepositoryIndexKey, indexByGitRepository); err != nil { | ||
| return errors.Wrapf(err, "failed setting index field %s", gitRepositoryIndexKey) | ||
| } | ||
| if err := mgr.GetCache().IndexField(context.TODO(), &operatorv1alpha1.Component{}, ociRepositoryIndexKey, indexByOciRepository); err != nil { | ||
| return errors.Wrapf(err, "failed setting index field %s", ociRepositoryIndexKey) | ||
| } | ||
| if err := mgr.GetCache().IndexField(context.TODO(), &operatorv1alpha1.Component{}, bucketIndexKey, indexByBucket); err != nil { | ||
| return errors.Wrapf(err, "failed setting index field %s", bucketIndexKey) | ||
| } | ||
| if err := mgr.GetCache().IndexField(context.TODO(), &operatorv1alpha1.Component{}, helmChartIndexKey, indexByHelmChart); err != nil { | ||
| return errors.Wrapf(err, "failed setting index field %s", helmChartIndexKey) | ||
| } | ||
|
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||
| blder. | ||
| Watches( | ||
| &fluxsourcev1beta2.GitRepository{}, | ||
| newHandler(mgr.GetCache(), gitRepositoryIndexKey)). | ||
| Watches( | ||
| &fluxsourcev1beta2.OCIRepository{}, | ||
| newHandler(mgr.GetCache(), ociRepositoryIndexKey)). | ||
| Watches( | ||
| &fluxsourcev1beta2.Bucket{}, | ||
| newHandler(mgr.GetCache(), bucketIndexKey)). | ||
| Watches( | ||
| &fluxsourcev1beta2.HelmChart{}, | ||
| newHandler(mgr.GetCache(), helmChartIndexKey)) | ||
|
|
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| return nil | ||
| } | ||
|
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| func indexByGitRepository(object client.Object) []string { | ||
| component := object.(*operatorv1alpha1.Component) | ||
| if component.Spec.SourceRef.FluxGitRepository == nil { | ||
| return nil | ||
| } | ||
| return []string{component.Spec.SourceRef.FluxGitRepository.WithDefaultNamespace(component.Namespace).String()} | ||
| } | ||
|
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| func indexByOciRepository(object client.Object) []string { | ||
| component := object.(*operatorv1alpha1.Component) | ||
| if component.Spec.SourceRef.FluxOciRepository == nil { | ||
| return nil | ||
| } | ||
| return []string{component.Spec.SourceRef.FluxOciRepository.WithDefaultNamespace(component.Namespace).String()} | ||
| } | ||
|
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| func indexByBucket(object client.Object) []string { | ||
| component := object.(*operatorv1alpha1.Component) | ||
| if component.Spec.SourceRef.FluxBucket == nil { | ||
| return nil | ||
| } | ||
| return []string{component.Spec.SourceRef.FluxBucket.WithDefaultNamespace(component.Namespace).String()} | ||
| } | ||
|
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| func indexByHelmChart(object client.Object) []string { | ||
| component := object.(*operatorv1alpha1.Component) | ||
| if component.Spec.SourceRef.FluxHelmChart == nil { | ||
| return nil | ||
| } | ||
| return []string{component.Spec.SourceRef.FluxHelmChart.WithDefaultNamespace(component.Namespace).String()} | ||
| } | ||
|
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| type sourceHandler struct { | ||
| cache cache.Cache | ||
| indexKey string | ||
| } | ||
|
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| func newHandler(cache cache.Cache, indexKey string) handler.EventHandler { | ||
| return &sourceHandler{ | ||
| cache: cache, | ||
| indexKey: indexKey, | ||
| } | ||
| } | ||
|
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| func (h *sourceHandler) Create(ctx context.Context, e event.CreateEvent, q workqueue.RateLimitingInterface) { | ||
| // new sources will never be immediately ready, so nothing has to be done here | ||
| } | ||
|
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| func (h *sourceHandler) Update(ctx context.Context, e event.UpdateEvent, q workqueue.RateLimitingInterface) { | ||
| newSource := e.ObjectNew.(Source) | ||
|
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| if !object.IsReady(newSource) { | ||
| return | ||
| } | ||
|
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| artifact := newSource.GetArtifact() | ||
| if artifact == nil { | ||
| return | ||
| } | ||
| newRevision := artifact.Revision | ||
| if newRevision == "" { | ||
| return | ||
| } | ||
|
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| componentList := &operatorv1alpha1.ComponentList{} | ||
| if err := h.cache.List(ctx, componentList, client.MatchingFields{ | ||
| h.indexKey: client.ObjectKeyFromObject(e.ObjectNew).String(), | ||
| }); err != nil { | ||
| // TODO | ||
| // log.Error(err, "failed to list objects for source revision change") | ||
| return | ||
| } | ||
| for _, c := range componentList.Items { | ||
| if c.IsReady() && c.Status.LastAttemptedRevision == newRevision { | ||
| continue | ||
| } | ||
| q.Add(reconcile.Request{NamespacedName: apitypes.NamespacedName{ | ||
| Namespace: c.Namespace, | ||
| Name: c.Name, | ||
| }}) | ||
| } | ||
| } | ||
|
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| func (h *sourceHandler) Delete(ctx context.Context, e event.DeleteEvent, q workqueue.RateLimitingInterface) { | ||
| // no need to queue components if source is deleted (reconciliation of the component would anyway fail) | ||
| } | ||
|
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| func (h *sourceHandler) Generic(context.Context, event.GenericEvent, workqueue.RateLimitingInterface) { | ||
| // generic events are not expected to arrive on the watch that uses this handler, so nothing to do here | ||
| } |
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