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[#124] support scale subresource for scale to zero
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,148 @@ | ||
| /* | ||
| 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. | ||
| */ | ||
| // +kubebuilder:docs-gen:collapse=Apache License | ||
|
|
||
| /* | ||
| As usual, we start with the necessary imports. We also define some utility variables. | ||
| */ | ||
| package controllers | ||
|
|
||
| import ( | ||
| "context" | ||
| "os" | ||
|
|
||
| "k8s.io/client-go/dynamic" | ||
| "k8s.io/client-go/scale" | ||
|
|
||
| "k8s.io/client-go/discovery" | ||
|
|
||
| . "github.com/onsi/ginkgo/v2" | ||
| . "github.com/onsi/gomega" | ||
|
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| "k8s.io/apimachinery/pkg/api/meta" | ||
| v1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/runtime/schema" | ||
| "k8s.io/apimachinery/pkg/types" | ||
|
|
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| brokerv1beta1 "github.com/artemiscloud/activemq-artemis-operator/api/v1beta1" | ||
| "github.com/artemiscloud/activemq-artemis-operator/pkg/utils/common" | ||
| ) | ||
|
|
||
| var _ = Describe("subresource scale down", func() { | ||
|
|
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| BeforeEach(func() { | ||
| BeforeEachSpec() | ||
| }) | ||
|
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| Context("scale to zero via scale subresource", func() { | ||
| It("deploy plan 1", func() { | ||
| if os.Getenv("USE_EXISTING_CLUSTER") == "true" { | ||
|
|
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| ctx := context.Background() | ||
| brokerCrd := generateArtemisSpec(defaultNamespace) | ||
|
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| // need to popluate scale json path | ||
| brokerCrd.Spec.DeploymentPlan.Size = common.Int32ToPtr(1) | ||
|
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| Expect(k8sClient.Create(ctx, &brokerCrd)).Should(Succeed()) | ||
|
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| createdBrokerCrd := &brokerv1beta1.ActiveMQArtemis{} | ||
| createdBrokerCrdKey := types.NamespacedName{ | ||
| Name: brokerCrd.Name, | ||
| Namespace: defaultNamespace, | ||
| } | ||
|
|
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| var crdResourceVersion string | ||
| By("verifying started") | ||
| Eventually(func(g Gomega) { | ||
|
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| g.Expect(k8sClient.Get(ctx, createdBrokerCrdKey, createdBrokerCrd)).Should(Succeed()) | ||
| g.Expect(meta.IsStatusConditionTrue(createdBrokerCrd.Status.Conditions, brokerv1beta1.ReadyConditionType)).Should(BeTrue()) | ||
| crdResourceVersion = createdBrokerCrd.GetResourceVersion() | ||
|
|
||
| }, existingClusterTimeout, existingClusterInterval).Should(Succeed()) | ||
|
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| By("scale to zero via scale sub resource") | ||
|
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| clientset, err := discovery.NewDiscoveryClientForConfig(k8Manager.GetConfig()) | ||
| Expect(err).To(BeNil()) | ||
|
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| scaleClient := scale.New( | ||
| clientset.RESTClient(), k8Manager.GetRESTMapper(), | ||
| dynamic.LegacyAPIPathResolverFunc, | ||
| scale.NewDiscoveryScaleKindResolver(clientset), | ||
| ) | ||
|
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| currentScales := scaleClient.Scales(defaultNamespace) | ||
|
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| By("by getting current val via scale sub resource") | ||
| resource := schema.GroupResource{Group: artemisGvk.Group, Resource: artemisGvk.Kind} | ||
| scaleVal, err := currentScales.Get(ctx, resource, createdBrokerCrd.Name, v1.GetOptions{}) | ||
| Expect(err).To(BeNil()) | ||
|
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| Expect(scaleVal.Spec.Replicas).To(BeEquivalentTo(1)) | ||
|
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| Eventually(func(g Gomega) { | ||
| scaleVal, err = currentScales.Get(ctx, resource, createdBrokerCrd.Name, v1.GetOptions{}) | ||
| g.Expect(err).To(BeNil()) | ||
|
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| By("by updating via via scale sub resource") | ||
| scaleVal.Spec.Replicas = 0 | ||
| _, err = currentScales.Update(ctx, resource, scaleVal, v1.UpdateOptions{}) | ||
| Expect(err).To(BeNil()) | ||
|
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| }, existingClusterTimeout, existingClusterInterval).Should(Succeed()) | ||
|
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| By("verifying scaled down via status") | ||
| Eventually(func(g Gomega) { | ||
|
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| g.Expect(k8sClient.Get(ctx, createdBrokerCrdKey, createdBrokerCrd)).Should(Succeed()) | ||
|
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| g.Expect(meta.IsStatusConditionTrue(createdBrokerCrd.Status.Conditions, brokerv1beta1.ReadyConditionType)).Should(BeFalse()) | ||
| g.Expect(meta.IsStatusConditionTrue(createdBrokerCrd.Status.Conditions, brokerv1beta1.DeployedConditionType)).Should(BeFalse()) | ||
| g.Expect(meta.IsStatusConditionTrue(createdBrokerCrd.Status.Conditions, brokerv1beta1.ValidConditionType)).Should(BeTrue()) | ||
|
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| g.Expect(createdBrokerCrd.Status.DeploymentPlanSize).Should(BeEquivalentTo(0)) | ||
|
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| By("verify crd updated") | ||
| g.Expect(crdResourceVersion).ShouldNot(Equal(createdBrokerCrd.GetResourceVersion())) | ||
|
|
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| }, existingClusterTimeout, existingClusterInterval).Should(Succeed()) | ||
|
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| By("scaling back up") | ||
| Eventually(func(g Gomega) { | ||
| scaleVal, err = currentScales.Get(ctx, resource, createdBrokerCrd.Name, v1.GetOptions{}) | ||
| g.Expect(err).To(BeNil()) | ||
|
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| By("by updating via via scale sub resource") | ||
| scaleVal.Spec.Replicas = 1 | ||
| _, err = currentScales.Update(ctx, resource, scaleVal, v1.UpdateOptions{}) | ||
| Expect(err).To(BeNil()) | ||
|
|
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| }, existingClusterTimeout, existingClusterInterval).Should(Succeed()) | ||
|
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| By("verifying restarted") | ||
| Eventually(func(g Gomega) { | ||
|
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| g.Expect(k8sClient.Get(ctx, createdBrokerCrdKey, createdBrokerCrd)).Should(Succeed()) | ||
| g.Expect(meta.IsStatusConditionTrue(createdBrokerCrd.Status.Conditions, brokerv1beta1.ReadyConditionType)).Should(BeTrue()) | ||
|
|
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| }, existingClusterTimeout, existingClusterInterval).Should(Succeed()) | ||
|
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| Expect(k8sClient.Delete(ctx, createdBrokerCrd)).Should(Succeed()) | ||
| } | ||
|
|
||
| }) | ||
| }) | ||
| }) |
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