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Merge pull request #639 from fluxcd/watch-predicates
Add predicates for GitRepo and ImagePolicy watches
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| /* | ||
| Copyright 2024 The Flux 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 controller | ||
|
|
||
| import ( | ||
| "sigs.k8s.io/controller-runtime/pkg/event" | ||
| "sigs.k8s.io/controller-runtime/pkg/predicate" | ||
|
|
||
| imagev1_reflect "github.com/fluxcd/image-reflector-controller/api/v1beta2" | ||
| ) | ||
|
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| // latestImageChangePredicate implements a predicate for latest image change. | ||
| // This can be used to filter events from ImagePolicies for change in the latest | ||
| // image. | ||
| type latestImageChangePredicate struct { | ||
| predicate.Funcs | ||
| } | ||
|
|
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| func (latestImageChangePredicate) Create(e event.CreateEvent) bool { | ||
| return false | ||
| } | ||
|
|
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| func (latestImageChangePredicate) Delete(e event.DeleteEvent) bool { | ||
| return false | ||
| } | ||
|
|
||
| func (latestImageChangePredicate) Update(e event.UpdateEvent) bool { | ||
| if e.ObjectOld == nil || e.ObjectNew == nil { | ||
| return false | ||
| } | ||
|
|
||
| oldSource, ok := e.ObjectOld.(*imagev1_reflect.ImagePolicy) | ||
| if !ok { | ||
| return false | ||
| } | ||
|
|
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| newSource, ok := e.ObjectNew.(*imagev1_reflect.ImagePolicy) | ||
| if !ok { | ||
| return false | ||
| } | ||
|
|
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| if oldSource.Status.LatestImage != newSource.Status.LatestImage { | ||
| return true | ||
| } | ||
|
|
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| return false | ||
| } | ||
|
|
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| // sourceConfigChangePredicate implements a predicate for source configuration | ||
| // change. This can be used to filter events from source objects for change in | ||
| // source configuration. | ||
| type sourceConfigChangePredicate struct { | ||
| predicate.Funcs | ||
| } | ||
|
|
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| func (sourceConfigChangePredicate) Create(e event.CreateEvent) bool { | ||
| return false | ||
| } | ||
|
|
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| func (sourceConfigChangePredicate) Delete(e event.DeleteEvent) bool { | ||
| return false | ||
| } | ||
|
|
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| func (sourceConfigChangePredicate) Update(e event.UpdateEvent) bool { | ||
| if e.ObjectOld == nil || e.ObjectNew == nil { | ||
| return false | ||
| } | ||
|
|
||
| return e.ObjectOld.GetGeneration() != e.ObjectNew.GetGeneration() | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,120 @@ | ||
| /* | ||
| Copyright 2024 The Flux 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 controller | ||
|
|
||
| import ( | ||
| "testing" | ||
|
|
||
| . "github.com/onsi/gomega" | ||
| "sigs.k8s.io/controller-runtime/pkg/event" | ||
|
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| imagev1_reflect "github.com/fluxcd/image-reflector-controller/api/v1beta2" | ||
| sourcev1 "github.com/fluxcd/source-controller/api/v1" | ||
| ) | ||
|
|
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| func Test_latestImageChangePredicate_Update(t *testing.T) { | ||
| tests := []struct { | ||
| name string | ||
| beforeFunc func(oldObj, newObj *imagev1_reflect.ImagePolicy) | ||
| want bool | ||
| }{ | ||
| { | ||
| name: "no latest image", | ||
| beforeFunc: func(oldObj, newObj *imagev1_reflect.ImagePolicy) { | ||
| oldObj.Status.LatestImage = "" | ||
| newObj.Status.LatestImage = "" | ||
| }, | ||
| want: false, | ||
| }, | ||
| { | ||
| name: "new image, no old image", | ||
| beforeFunc: func(oldObj, newObj *imagev1_reflect.ImagePolicy) { | ||
| oldObj.Status.LatestImage = "" | ||
| newObj.Status.LatestImage = "foo" | ||
| }, | ||
| want: true, | ||
| }, | ||
| { | ||
| name: "different old and new image", | ||
| beforeFunc: func(oldObj, newObj *imagev1_reflect.ImagePolicy) { | ||
| oldObj.Status.LatestImage = "bar" | ||
| newObj.Status.LatestImage = "foo" | ||
| }, | ||
| want: true, | ||
| }, | ||
| } | ||
| for _, tt := range tests { | ||
| t.Run(tt.name, func(t *testing.T) { | ||
| g := NewWithT(t) | ||
|
|
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| oldObj := &imagev1_reflect.ImagePolicy{} | ||
| newObj := oldObj.DeepCopy() | ||
| if tt.beforeFunc != nil { | ||
| tt.beforeFunc(oldObj, newObj) | ||
| } | ||
| e := event.UpdateEvent{ | ||
| ObjectOld: oldObj, | ||
| ObjectNew: newObj, | ||
| } | ||
| p := latestImageChangePredicate{} | ||
| g.Expect(p.Update(e)).To(Equal(tt.want)) | ||
| }) | ||
| } | ||
| } | ||
|
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| func Test_sourceConfigChangePredicate_Update(t *testing.T) { | ||
| tests := []struct { | ||
| name string | ||
| beforeFunc func(oldObj, newObj *sourcev1.GitRepository) | ||
| want bool | ||
| }{ | ||
| { | ||
| name: "no generation change, same config", | ||
| beforeFunc: func(oldObj, newObj *sourcev1.GitRepository) { | ||
| oldObj.Generation = 0 | ||
| newObj.Generation = 0 | ||
| }, | ||
| want: false, | ||
| }, | ||
| { | ||
| name: "new generation, config change", | ||
| beforeFunc: func(oldObj, newObj *sourcev1.GitRepository) { | ||
| oldObj.Generation = 1 | ||
| newObj.Generation = 2 | ||
| }, | ||
| want: true, | ||
| }, | ||
| } | ||
| for _, tt := range tests { | ||
| t.Run(tt.name, func(t *testing.T) { | ||
| g := NewWithT(t) | ||
|
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| oldObj := &sourcev1.GitRepository{} | ||
| newObj := oldObj.DeepCopy() | ||
| if tt.beforeFunc != nil { | ||
| tt.beforeFunc(oldObj, newObj) | ||
| } | ||
| e := event.UpdateEvent{ | ||
| ObjectOld: oldObj, | ||
| ObjectNew: newObj, | ||
| } | ||
| p := sourceConfigChangePredicate{} | ||
| g.Expect(p.Update(e)).To(Equal(tt.want)) | ||
| }) | ||
| } | ||
|
|
||
| } |
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