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Add util function to get MachinePool by label
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,33 @@ | ||
| /* | ||
| Copyright 2023 The Kubernetes 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 util | ||
|
|
||
| import ( | ||
| "k8s.io/apimachinery/pkg/runtime" | ||
| ctrl "sigs.k8s.io/controller-runtime" | ||
|
|
||
| expv1 "sigs.k8s.io/cluster-api/exp/api/v1beta1" | ||
| ) | ||
|
|
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| var ( | ||
| ctx = ctrl.SetupSignalHandler() | ||
| fakeScheme = runtime.NewScheme() | ||
| ) | ||
|
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||
| func init() { | ||
| _ = expv1.AddToScheme(fakeScheme) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,155 @@ | ||
| /* | ||
| Copyright 2023 The Kubernetes 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. | ||
| */ | ||
|
|
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| // Package util implements utility functions. | ||
| package util | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "testing" | ||
|
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| . "github.com/onsi/gomega" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| "sigs.k8s.io/controller-runtime/pkg/client/fake" | ||
|
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| clusterv1 "sigs.k8s.io/cluster-api/api/v1beta1" | ||
| expv1 "sigs.k8s.io/cluster-api/exp/api/v1beta1" | ||
| "sigs.k8s.io/cluster-api/util/labels/format" | ||
| ) | ||
|
|
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| func TestGetMachinePoolByLabels(t *testing.T) { | ||
| g := NewWithT(t) | ||
|
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| longMachinePoolName := "this-is-a-very-long-machinepool-name-that-will-turned-into-a-hash-because-it-is-longer-than-63-characters" | ||
| namespace := "default" | ||
|
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| testcases := []struct { | ||
| name string | ||
| labels map[string]string | ||
| machinePools []client.Object | ||
| expectedMachinePoolName string | ||
| expectedError string | ||
| }{ | ||
| { | ||
| name: "returns a MachinePool with matching labels", | ||
| labels: map[string]string{ | ||
| clusterv1.MachinePoolNameLabel: "test-pool", | ||
| }, | ||
| machinePools: []client.Object{ | ||
| &expv1.MachinePool{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: "test-pool", | ||
| Namespace: "default", | ||
| }, | ||
| }, | ||
| &expv1.MachinePool{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: "other-pool", | ||
| Namespace: "default", | ||
| }, | ||
| }, | ||
| }, | ||
| expectedMachinePoolName: "test-pool", | ||
| }, | ||
| { | ||
| name: "returns a MachinePool with matching labels and cluster name is included", | ||
| labels: map[string]string{ | ||
| clusterv1.MachinePoolNameLabel: "test-pool", | ||
| clusterv1.ClusterNameLabel: "test-cluster", | ||
| }, | ||
| machinePools: []client.Object{ | ||
| &expv1.MachinePool{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: "test-pool", | ||
| Namespace: "default", | ||
| Labels: map[string]string{ | ||
| clusterv1.ClusterNameLabel: "test-cluster", | ||
| }, | ||
| }, | ||
| }, | ||
| &expv1.MachinePool{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: "other-pool", | ||
| Namespace: "default", | ||
| Labels: map[string]string{ | ||
| clusterv1.ClusterNameLabel: "test-cluster", | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| expectedMachinePoolName: "test-pool", | ||
| }, | ||
| { | ||
| name: "returns a MachinePool where label is a hash", | ||
| labels: map[string]string{ | ||
| clusterv1.MachinePoolNameLabel: format.MustFormatValue(longMachinePoolName), | ||
| }, | ||
| machinePools: []client.Object{ | ||
| &expv1.MachinePool{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: longMachinePoolName, | ||
| Namespace: "default", | ||
| }, | ||
| }, | ||
| &expv1.MachinePool{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: "other-pool", | ||
| Namespace: "default", | ||
| }, | ||
| }, | ||
| }, | ||
| expectedMachinePoolName: longMachinePoolName, | ||
| }, | ||
| { | ||
| name: "missing required key", | ||
| labels: map[string]string{}, | ||
| expectedError: fmt.Sprintf("labels missing required key `%s`", clusterv1.MachinePoolNameLabel), | ||
| }, | ||
| { | ||
| name: "returns nil when no machine pool matches", | ||
| labels: map[string]string{ | ||
| clusterv1.MachinePoolNameLabel: "test-pool", | ||
| }, | ||
| machinePools: []client.Object{}, | ||
| expectedMachinePoolName: "", | ||
| }, | ||
| } | ||
|
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| for _, tc := range testcases { | ||
| tc := tc | ||
| t.Run(tc.name, func(t *testing.T) { | ||
| clientFake := fake.NewClientBuilder(). | ||
| WithScheme(fakeScheme). | ||
| WithObjects( | ||
| tc.machinePools..., | ||
| ).Build() | ||
|
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| mp, err := GetMachinePoolByLabels(ctx, clientFake, namespace, tc.labels) | ||
| if tc.expectedError != "" { | ||
| g.Expect(err).To(MatchError(tc.expectedError)) | ||
| } else { | ||
| g.Expect(err).NotTo(HaveOccurred()) | ||
| if tc.expectedMachinePoolName != "" { | ||
| g.Expect(mp).ToNot(BeNil()) | ||
| g.Expect(mp.Name).To(Equal(tc.expectedMachinePoolName)) | ||
| } else { | ||
| g.Expect(mp).To(BeNil()) | ||
| } | ||
| } | ||
| }) | ||
| } | ||
| } |