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e2e: kubectl rollout daemonset
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‎e2e/src/test/groovy/io/kubernetes/client/e2e/kubectl/KubectlRolloutTest.groovy‎

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/*
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Copyright 2021 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package io.kubernetes.client.e2e.kubectl
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import io.kubernetes.client.openapi.models.V1Deployment
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import io.kubernetes.client.openapi.models.V1StatefulSet
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import java.nio.charset.StandardCharsets
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import io.kubernetes.client.extended.kubectl.History
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import io.kubernetes.client.extended.kubectl.Kubectl
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import io.kubernetes.client.openapi.Configuration
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import io.kubernetes.client.openapi.models.V1DaemonSet
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import io.kubernetes.client.openapi.models.V1PodTemplateSpec
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import io.kubernetes.client.util.ClientBuilder
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import io.kubernetes.client.util.Streams
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import io.kubernetes.client.util.Yaml
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import spock.lang.Specification
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class KubectlRolloutTest extends Specification {
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def "Kubectl rollout daemonset should work"() {
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given:
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def apiClient = ClientBuilder.defaultClient()
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Configuration.setDefaultApiClient(apiClient)
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// initial daemonset has only one container
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def daemonSet = Yaml.load(getResourceFileAsString("test-daemonset.yaml"))
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// updating daemonset has two containers
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def updatingDaemonSet = Yaml.load(getResourceFileAsString("test-daemonset-updated.yaml"))
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when:
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def createdDaemonSet = Kubectl.create(V1DaemonSet.class)
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.resource(daemonSet)
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.execute()
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then:
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createdDaemonSet != null
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when:
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List<History> histories = Kubectl.rollout(V1DaemonSet.class)
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.history()
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.namespace(daemonSet.metadata.namespace)
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.name(daemonSet.metadata.name)
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.execute()
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then:
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histories.size() == 1
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when:
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def updatedDaemonSet = Kubectl.replace(V1DaemonSet.class)
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.resource(updatingDaemonSet)
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.execute()
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then:
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updatedDaemonSet != null
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when:
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histories = Kubectl.rollout(V1DaemonSet.class)
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.history()
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.namespace(daemonSet.metadata.namespace)
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.name(daemonSet.metadata.name)
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.execute()
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then:
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histories.size() == 2
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when:
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V1PodTemplateSpec template = Kubectl.rollout(V1DaemonSet.class)
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.history()
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.revision(2)
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.namespace(daemonSet.metadata.namespace)
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.name(daemonSet.metadata.name)
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.execute()
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then:
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template != null
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template.spec.containers.size() == 2
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cleanup:
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Kubectl.delete(V1DaemonSet.class)
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.namespace(daemonSet.metadata.namespace)
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.name(daemonSet.metadata.name)
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.execute()
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}
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def "Kubectl rollout deployment should work"() {
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given:
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def apiClient = ClientBuilder.defaultClient()
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Configuration.setDefaultApiClient(apiClient)
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// initial deployment has only one container
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def deployment = Yaml.load(getResourceFileAsString("test-deployment.yaml"))
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// updating deployment has two containers
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def updatingDeployment = Yaml.load(getResourceFileAsString("test-deployment-updated.yaml"))
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when:
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def createdDeployment = Kubectl.create(V1Deployment.class)
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.resource(deployment)
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.execute()
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then:
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createdDeployment != null
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when:
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List<History> histories = Kubectl.rollout(V1Deployment.class)
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.history()
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.namespace(deployment.metadata.namespace)
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.name(deployment.metadata.name)
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.execute()
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then:
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histories.size() == 1
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when:
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def updatedDaemonSet = Kubectl.replace(V1Deployment.class)
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.resource(updatingDeployment)
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.execute()
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then:
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updatedDaemonSet != null
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when:
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histories = Kubectl.rollout(V1Deployment.class)
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.history()
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.namespace(deployment.metadata.namespace)
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.name(deployment.metadata.name)
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.execute()
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then:
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histories.size() == 2
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when:
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V1PodTemplateSpec template = Kubectl.rollout(V1Deployment.class)
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.history()
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.revision(2)
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.namespace(deployment.metadata.namespace)
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.name(deployment.metadata.name)
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.execute()
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then:
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template != null
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template.spec.containers.size() == 2
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cleanup:
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Kubectl.delete(V1Deployment.class)
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.namespace(deployment.metadata.namespace)
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.name(deployment.metadata.name)
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.execute()
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}
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def "Kubectl rollout statefulset should work"() {
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given:
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def apiClient = ClientBuilder.defaultClient()
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Configuration.setDefaultApiClient(apiClient)
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// initial deployment has only one container
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def statefulset = Yaml.load(getResourceFileAsString("test-statefulset.yaml"))
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// updating deployment has two containers
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def updatingStatefulSet = Yaml.load(getResourceFileAsString("test-statefulset-updated.yaml"))
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when:
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def createdStatefulSet = Kubectl.create(V1StatefulSet.class)
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.resource(statefulset)
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.execute()
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then:
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createdStatefulSet != null
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when:
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List<History> histories = Kubectl.rollout(V1StatefulSet.class)
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.history()
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.namespace(statefulset.metadata.namespace)
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.name(statefulset.metadata.name)
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.execute()
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then:
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histories.size() == 1
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when:
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def updatedDaemonSet = Kubectl.replace(V1StatefulSet.class)
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.resource(updatingStatefulSet)
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.execute()
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then:
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updatedDaemonSet != null
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when:
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histories = Kubectl.rollout(V1StatefulSet.class)
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.history()
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.namespace(statefulset.metadata.namespace)
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.name(statefulset.metadata.name)
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.execute()
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then:
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histories.size() == 2
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when:
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V1PodTemplateSpec template = Kubectl.rollout(V1StatefulSet.class)
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.history()
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.revision(2)
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.namespace(statefulset.metadata.namespace)
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.name(statefulset.metadata.name)
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.execute()
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then:
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template != null
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template.spec.containers.size() == 2
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cleanup:
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Kubectl.delete(V1StatefulSet.class)
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.namespace(statefulset.metadata.namespace)
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.name(statefulset.metadata.name)
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.execute()
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}
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private String getResourceFileAsString(String filename) {
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def url = this.getClass().getClassLoader().getResource(filename)
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return Streams.toString(new InputStreamReader(url.openStream(), StandardCharsets.UTF_8));
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}
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}

‎e2e/src/test/resources/test-daemonset-updated.yaml‎

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apiVersion: apps/v1
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kind: DaemonSet
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metadata:
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name: fluentd-elasticsearch
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namespace: default
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labels:
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k8s-app: fluentd-logging
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spec:
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selector:
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matchLabels:
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name: fluentd-elasticsearch
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template:
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metadata:
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labels:
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name: fluentd-elasticsearch
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spec:
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tolerations:
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# this toleration is to have the daemonset runnable on master nodes
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# remove it if your masters can't run pods
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- key: node-role.kubernetes.io/master
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operator: Exists
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effect: NoSchedule
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containers:
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- name: fluentd-elasticsearch
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image: quay.io/fluentd_elasticsearch/fluentd:v2.5.2
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resources:
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limits:
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memory: 200Mi
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requests:
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cpu: 100m
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memory: 200Mi
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volumeMounts:
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- name: varlog
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mountPath: /var/log
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- name: varlibdockercontainers
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mountPath: /var/lib/docker/containers
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readOnly: true
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- name: fluentd-elasticsearch-2
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image: quay.io/fluentd_elasticsearch/fluentd:v2.5.2
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resources:
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limits:
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memory: 200Mi
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requests:
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cpu: 100m
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memory: 200Mi
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volumeMounts:
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- name: varlog
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mountPath: /var/log
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- name: varlibdockercontainers
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mountPath: /var/lib/docker/containers
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readOnly: true
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terminationGracePeriodSeconds: 30
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volumes:
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- name: varlog
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hostPath:
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path: /var/log
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- name: varlibdockercontainers
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hostPath:
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path: /var/lib/docker/containers

‎e2e/src/test/resources/test-daemonset.yaml‎

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apiVersion: apps/v1
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kind: DaemonSet
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metadata:
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name: fluentd-elasticsearch
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namespace: default
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labels:
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k8s-app: fluentd-logging
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spec:
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selector:
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matchLabels:
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name: fluentd-elasticsearch
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template:
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metadata:
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labels:
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name: fluentd-elasticsearch
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spec:
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tolerations:
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# this toleration is to have the daemonset runnable on master nodes
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# remove it if your masters can't run pods
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- key: node-role.kubernetes.io/master
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operator: Exists
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effect: NoSchedule
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containers:
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- name: fluentd-elasticsearch
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image: quay.io/fluentd_elasticsearch/fluentd:v2.5.2
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resources:
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limits:
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memory: 200Mi
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requests:
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cpu: 100m
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memory: 200Mi
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volumeMounts:
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- name: varlog
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mountPath: /var/log
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- name: varlibdockercontainers
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mountPath: /var/lib/docker/containers
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readOnly: true
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terminationGracePeriodSeconds: 30
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volumes:
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- name: varlog
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hostPath:
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path: /var/log
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- name: varlibdockercontainers
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hostPath:
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path: /var/lib/docker/containers

‎e2e/src/test/resources/test-deployment-updated.yaml‎

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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: nginx-deployment
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namespace: default
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labels:
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app: nginx
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spec:
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replicas: 3
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selector:
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matchLabels:
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app: nginx
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template:
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metadata:
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labels:
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app: nginx
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spec:
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containers:
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- name: nginx
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image: nginx:1.14.2
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ports:
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- containerPort: 80
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- name: nginx-2
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image: nginx:1.14.2
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ports:
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- containerPort: 80

‎e2e/src/test/resources/test-deployment.yaml‎

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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: nginx-deployment
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namespace: default
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labels:
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app: nginx
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spec:
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replicas: 3
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selector:
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matchLabels:
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app: nginx
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template:
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metadata:
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labels:
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app: nginx
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spec:
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containers:
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- name: nginx
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image: nginx:1.14.2
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ports:
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- containerPort: 80

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