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Add monitor for event-based reconciliation
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| /* | ||
| Copyright 2024 The Crossplane Authors. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package instance | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
|
|
||
| ctrl "sigs.k8s.io/controller-runtime" | ||
| "sigs.k8s.io/controller-runtime/pkg/event" | ||
| "sigs.k8s.io/controller-runtime/pkg/source" | ||
|
|
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| svcapitypes "github.com/crossplane-contrib/provider-aws/apis/ec2/manualv1alpha1" | ||
| "github.com/crossplane-contrib/provider-aws/pkg/monitor" | ||
| "github.com/crossplane-contrib/provider-aws/pkg/utils/cache" | ||
| ) | ||
|
|
||
| func eventsFromMonitor(mgr ctrl.Manager, mnt monitor.Monitor) source.Source { | ||
| mnt.AddPrepareHook(func(ctx context.Context) error { | ||
| if err := cache.IndexByExternalName(ctx, mgr.GetCache(), &svcapitypes.Instance{}); err != nil { | ||
| return fmt.Errorf("setting up indexer: %w", err) | ||
| } | ||
| return nil | ||
| }) | ||
|
|
||
| eventsChannel := make(chan event.GenericEvent) | ||
| mnt.AddSubscriber(func(ctx context.Context, evt monitor.Event) { | ||
| if evt.GVK != svcapitypes.InstanceGroupVersionKind { | ||
| return | ||
| } | ||
| var list svcapitypes.InstanceList | ||
| if err := cache.ListByExternalName(ctx, mgr.GetCache(), &list, evt.ExternalName); err != nil { | ||
| mgr.GetLogger().Error(err, "failed to list objects", "externalName", evt.ExternalName) | ||
| return | ||
| } | ||
| for _, object := range list.Items { | ||
| object := object | ||
| eventsChannel <- event.GenericEvent{Object: &object} | ||
| } | ||
| }) | ||
| return &source.Channel{Source: eventsChannel} | ||
| } |
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