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*: filter informers when preconditions are met
When we can detect at startup time that all of the objects we're about to look at have the labels we're expecting, we can filter our informer factories upfront. Signed-off-by: Steve Kuznetsov <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| package labeller | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "strings" | ||
| "sync" | ||
|
|
||
| "github.com/operator-framework/operator-lifecycle-manager/pkg/controller/registry/reconciler" | ||
| "github.com/sirupsen/logrus" | ||
| "golang.org/x/sync/errgroup" | ||
| appsv1 "k8s.io/api/apps/v1" | ||
| batchv1 "k8s.io/api/batch/v1" | ||
| corev1 "k8s.io/api/core/v1" | ||
| rbacv1 "k8s.io/api/rbac/v1" | ||
| apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/runtime/schema" | ||
| "k8s.io/client-go/metadata" | ||
|
|
||
| "github.com/operator-framework/operator-lifecycle-manager/pkg/controller/operators/internal/alongside" | ||
| ) | ||
|
|
||
| func Filter(gvr schema.GroupVersionResource) func(metav1.Object) bool { | ||
| if f, ok := filters[gvr]; ok { | ||
| return f | ||
| } | ||
| return func(object metav1.Object) bool { | ||
| return false | ||
| } | ||
| } | ||
|
|
||
| func JobFilter(getConfigMap func(namespace, name string) (metav1.Object, error)) func(object metav1.Object) bool { | ||
| return func(object metav1.Object) bool { | ||
| for _, ownerRef := range object.GetOwnerReferences() { | ||
| if ownerRef.APIVersion == corev1.SchemeGroupVersion.String() && ownerRef.Kind == "ConfigMap" { | ||
| cm, err := getConfigMap(object.GetNamespace(), ownerRef.Name) | ||
| if err != nil { | ||
| return false | ||
| } | ||
| return HasOLMOwnerRef(cm) | ||
| } | ||
| } | ||
| return false | ||
| } | ||
| } | ||
|
|
||
| var filters = map[schema.GroupVersionResource]func(metav1.Object) bool{ | ||
| corev1.SchemeGroupVersion.WithResource("services"): HasOLMOwnerRef, | ||
| corev1.SchemeGroupVersion.WithResource("pods"): func(object metav1.Object) bool { | ||
| _, ok := object.GetLabels()[reconciler.CatalogSourceLabelKey] | ||
| return ok | ||
| }, | ||
| corev1.SchemeGroupVersion.WithResource("serviceaccounts"): func(object metav1.Object) bool { | ||
| return HasOLMOwnerRef(object) || HasOLMLabel(object) | ||
| }, | ||
| appsv1.SchemeGroupVersion.WithResource("deployments"): HasOLMOwnerRef, | ||
| rbacv1.SchemeGroupVersion.WithResource("roles"): HasOLMOwnerRef, | ||
| rbacv1.SchemeGroupVersion.WithResource("rolebindings"): HasOLMOwnerRef, | ||
| rbacv1.SchemeGroupVersion.WithResource("clusterroles"): HasOLMOwnerRef, | ||
| rbacv1.SchemeGroupVersion.WithResource("clusterrolebindings"): HasOLMOwnerRef, | ||
| apiextensionsv1.SchemeGroupVersion.WithResource("customresourcedefinitions"): func(object metav1.Object) bool { | ||
| for key := range object.GetAnnotations() { | ||
| if strings.HasPrefix(key, alongside.AnnotationPrefix) { | ||
| return true | ||
| } | ||
| } | ||
| return false | ||
| }, | ||
| } | ||
|
|
||
| func Validate(ctx context.Context, logger *logrus.Logger, metadataClient metadata.Interface) (bool, error) { | ||
| okLock := sync.Mutex{} | ||
| var ok bool | ||
| g, ctx := errgroup.WithContext(ctx) | ||
| allFilters := map[schema.GroupVersionResource]func(metav1.Object) bool{} | ||
| for gvr, filter := range filters { | ||
| allFilters[gvr] = filter | ||
| } | ||
| allFilters[batchv1.SchemeGroupVersion.WithResource("jobs")] = JobFilter(func(namespace, name string) (metav1.Object, error) { | ||
| return metadataClient.Resource(corev1.SchemeGroupVersion.WithResource("configmaps")).Namespace(namespace).Get(ctx, name, metav1.GetOptions{}) | ||
| }) | ||
| for gvr, filter := range allFilters { | ||
| gvr, filter := gvr, filter | ||
| g.Go(func() error { | ||
| list, err := metadataClient.Resource(gvr).List(ctx, metav1.ListOptions{}) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to list %s: %w", gvr.String(), err) | ||
| } | ||
| var count int | ||
| for _, item := range list.Items { | ||
| if filter(&item) && !hasLabel(&item) { | ||
| count++ | ||
| } | ||
| } | ||
| if count > 0 { | ||
| logger.WithFields(logrus.Fields{ | ||
| "gvr": gvr.String(), | ||
| "nonconforming": count, | ||
| }).Info("found nonconforming items") | ||
| } | ||
| okLock.Lock() | ||
| ok = ok && count == 0 | ||
| okLock.Unlock() | ||
| return nil | ||
| }) | ||
| } | ||
| if err := g.Wait(); err != nil { | ||
| return false, err | ||
| } | ||
| return ok, nil | ||
| } |
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