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sync works when the watcher creating
Signed-off-by: Wei Liu <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,88 @@ | ||
| package grpcsource | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
|
|
||
| "github.com/openshift-online/maestro/pkg/api/openapi" | ||
| "k8s.io/client-go/rest" | ||
| "k8s.io/klog/v2" | ||
|
|
||
| workv1client "open-cluster-management.io/api/client/work/clientset/versioned/typed/work/v1" | ||
| workv1 "open-cluster-management.io/api/work/v1" | ||
|
|
||
| "open-cluster-management.io/sdk-go/pkg/cloudevents/generic" | ||
| "open-cluster-management.io/sdk-go/pkg/cloudevents/generic/options/grpc" | ||
| sourceclient "open-cluster-management.io/sdk-go/pkg/cloudevents/work/source/client" | ||
| sourcecodec "open-cluster-management.io/sdk-go/pkg/cloudevents/work/source/codec" | ||
| ) | ||
|
|
||
| func NewMaestroGRPCSourceWorkClient( | ||
| ctx context.Context, | ||
| apiClient *openapi.APIClient, | ||
| opts *grpc.GRPCOptions, | ||
| sourceID string, | ||
| ) (workv1client.WorkV1Interface, error) { | ||
| if len(sourceID) == 0 { | ||
| return nil, fmt.Errorf("source id is required") | ||
| } | ||
|
|
||
| options, err := generic.BuildCloudEventsSourceOptions(opts, fmt.Sprintf("%s-maestro", sourceID), sourceID) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| watcherStore := newRESTFulAPIWatcherStore(ctx, apiClient, sourceID) | ||
|
|
||
| cloudEventsClient, err := generic.NewCloudEventSourceClient[*workv1.ManifestWork]( | ||
| ctx, | ||
| options, | ||
| nil, // resync is disabled, so lister is not required | ||
| nil, // resync is disabled, so status hash is not required | ||
| sourcecodec.NewManifestBundleCodec(), | ||
| ) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| cloudEventsClient.Subscribe(ctx, watcherStore.HandleReceivedWork) | ||
|
|
||
| // start a go routine to receive client reconnect signal | ||
| go func() { | ||
| for { | ||
| select { | ||
| case <-ctx.Done(): | ||
| return | ||
| case <-cloudEventsClient.ReconnectedChan(): | ||
| // reconnect happened, sync the works for current watchers | ||
| if err := watcherStore.Sync(); err != nil { | ||
| klog.Errorf("failed to sync the works %v", err) | ||
| } | ||
| } | ||
| } | ||
| }() | ||
|
|
||
| manifestWorkClient := sourceclient.NewManifestWorkSourceClient(sourceID, cloudEventsClient, watcherStore) | ||
| return &WorkV1ClientWrapper{ManifestWorkClient: manifestWorkClient}, nil | ||
|
|
||
| } | ||
|
|
||
| // WorkV1ClientWrapper wraps a ManifestWork client to a WorkV1Interface | ||
| type WorkV1ClientWrapper struct { | ||
| ManifestWorkClient *sourceclient.ManifestWorkSourceClient | ||
| } | ||
|
|
||
| var _ workv1client.WorkV1Interface = &WorkV1ClientWrapper{} | ||
|
|
||
| func (c *WorkV1ClientWrapper) ManifestWorks(namespace string) workv1client.ManifestWorkInterface { | ||
| c.ManifestWorkClient.SetNamespace(namespace) | ||
| return c.ManifestWorkClient | ||
| } | ||
|
|
||
| func (c *WorkV1ClientWrapper) AppliedManifestWorks() workv1client.AppliedManifestWorkInterface { | ||
| return nil | ||
| } | ||
|
|
||
| func (c *WorkV1ClientWrapper) RESTClient() rest.Interface { | ||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| package grpcsource | ||
|
|
||
| import ( | ||
| "sync" | ||
|
|
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| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/watch" | ||
| "k8s.io/klog/v2" | ||
| workv1 "open-cluster-management.io/api/work/v1" | ||
| ) | ||
|
|
||
| // workWatcher implements the watch.Interface. | ||
| type workWatcher struct { | ||
| sync.RWMutex | ||
|
|
||
| result chan watch.Event | ||
| done chan struct{} | ||
| stopped bool | ||
|
|
||
| namespace string | ||
| } | ||
|
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| var _ watch.Interface = &workWatcher{} | ||
|
|
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| func newWorkWatcher(namespace string) *workWatcher { | ||
| return &workWatcher{ | ||
| result: make(chan watch.Event), | ||
| done: make(chan struct{}), | ||
| namespace: namespace, | ||
| } | ||
| } | ||
|
|
||
| // ResultChan implements Interface. | ||
| func (w *workWatcher) ResultChan() <-chan watch.Event { | ||
| return w.result | ||
| } | ||
|
|
||
| // Stop implements Interface. | ||
| func (w *workWatcher) Stop() { | ||
| // Call Close() exactly once by locking and setting a flag. | ||
| w.Lock() | ||
| defer w.Unlock() | ||
| // closing a closed channel always panics, therefore check before closing | ||
| select { | ||
| case <-w.done: | ||
| close(w.result) | ||
| default: | ||
| w.stopped = true | ||
| close(w.done) | ||
| } | ||
| } | ||
|
|
||
| // Receive an event and sends down the result channel. | ||
| func (w *workWatcher) Receive(evt watch.Event) { | ||
| if w.isStopped() { | ||
| // this watcher is stopped, do nothing. | ||
| return | ||
| } | ||
|
|
||
| work, ok := evt.Object.(*workv1.ManifestWork) | ||
| if !ok { | ||
| klog.Errorf("unknown event object type %T", evt.Object) | ||
| return | ||
| } | ||
|
|
||
| if w.namespace != metav1.NamespaceAll && w.namespace != work.Namespace { | ||
| klog.V(4).Infof("ignore the work %s/%s for the watcher %s", work.Namespace, work.Name, w.namespace) | ||
| return | ||
| } | ||
|
|
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| w.result <- evt | ||
| } | ||
|
|
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| func (w *workWatcher) isStopped() bool { | ||
| w.RLock() | ||
| defer w.RUnlock() | ||
|
|
||
| return w.stopped | ||
| } |
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