kubernetes中怎么安装Jenkins

本篇文章为大家展示了kubernetes中怎么安装Jenkins，内容简明扼要并且容易理解，绝对能使你眼前一亮，通过这篇文章的详细介绍希望你能有所收获。

1、k8s部署Jenkins

1）构建Jenkins镜像，使用阿里云的构建镜像Dockerfile如下：

FROM jenkins/jenkins #这个是官方镜像，必须基于官方镜像构建，否则安装之后还是要更新，又报错USER root#清除了基础镜像设置的源，切换成阿里云的jessie源RUN echo '' > /etc/apt/sources.list.d/jessie-backports.list \  && echo "deb http://mirrors.aliyun.com/debian jessie main contrib non-free" > /etc/apt/sources.list \  && echo "deb http://mirrors.aliyun.com/debian jessie-updates main contrib non-free" >> /etc/apt/sources.list \  && echo "deb http://mirrors.aliyun.com/debian-security jessie/updates main contrib non-free" >> /etc/apt/sources.list#更新源并安装缺少的包RUN apt-get update && apt-get install -y libltdl7ARG dockerGid=999RUN echo "docker:x:${dockerGid}:jenkins" >> /etc/group \USER jenkins

2）部署Jenkins镜像

A、创建pv持久化存储卷，本次用的是宿主机文件系统

apiVersion: "v1"kind: "PersistentVolume"metadata:  name: jenkins-0spec:  capacity:    storage: "10Gi"  accessModes:    - "ReadWriteMany"  hostPath :    path: /tmp    volumeName: jenkins

B、创建账户

kubectl create -f service-account.yml

# In GKE need to get RBAC permissions first with# kubectl create clusterrolebinding cluster-admin-binding --clusterrole=cluster-admin [--user=|--group=]---apiVersion: v1kind: ServiceAccountmetadata:  name: jenkins  namespace: default---kind: RoleapiVersion: rbac.authorization.k8s.io/v1beta1metadata:  name: jenkins  namespace: defaultrules:- apiGroups: [""]  resources: ["pods"]  verbs: ["create","delete","get","list","patch","update","watch"]- apiGroups: [""]  resources: ["pods/exec"]  verbs: ["create","delete","get","list","patch","update","watch"]- apiGroups: [""]  resources: ["pods/log"]  verbs: ["get","list","watch"]- apiGroups: [""]  resources: ["secrets"]  verbs: ["get"]---apiVersion: rbac.authorization.k8s.io/v1beta1kind: RoleBindingmetadata:  name: jenkinsroleRef:  apiGroup: rbac.authorization.k8s.io  kind: Role  name: jenkinssubjects:- kind: ServiceAccount  name: jenkins  namespace: default  ---kind: ClusterRoleapiVersion: rbac.authorization.k8s.io/v1beta1metadata:  name: jenkinsClusterRole  namespace: defaultrules:- apiGroups: [""]  resources: ["pods"]  verbs: ["create","delete","get","list","patch","update","watch"]- apiGroups: [""]  resources: ["pods/exec"]  verbs: ["create","delete","get","list","patch","update","watch"]- apiGroups: [""]  resources: ["pods/log"]  verbs: ["get","list","watch"]- apiGroups: [""]  resources: ["secrets"]  verbs: ["get"]---apiVersion: rbac.authorization.k8s.io/v1beta1kind: RoleBindingmetadata:  name: jenkinsClusterRuleBindingroleRef:  apiGroup: rbac.authorization.k8s.io  kind: ClusterRole  name: jenkinsClusterRolesubjects:- kind: ServiceAccount  name: jenkins  namespace: default

C、创建Jenkins服务

kubectl create -f jenkins.yml

# jenkins---apiVersion: apps/v1beta1kind: StatefulSetmetadata:  name: jenkins  namespace: default  labels:    name: jenkinsspec:  serviceName: jenkins  replicas: 1  updateStrategy:    type: RollingUpdate  template:    metadata:      name: jenkins      labels:        name: jenkins    spec:      terminationGracePeriodSeconds: 10      serviceAccountName: jenkins      imagePullSecrets:            - name: registry-secret      containers:        - name: jenkins          # image: jenkins/jenkins:lts-alpine          # image: chadmoon/jenkins-docker-kubectl:latest h2kkan/jenkins-docker          image: registry.cn-shanghai.aliyuncs.com/pml/jenkins:v1.0          imagePullPolicy: Always          ports:            - containerPort: 8080            - containerPort: 50000          resources:            limits:              cpu: 1              memory: 1Gi            requests:              cpu: 0.5              memory: 500Mi          env:            - name: LIMITS_MEMORY              valueFrom:                resourceFieldRef:                  resource: limits.memory                  divisor: 1Mi            - name: JAVA_OPTS              # value: -XX:+UnlockExperimentalVMOptions -XX:+UseCGroupMemoryLimitForHeap -XX:MaxRAMFraction=1 -XshowSettings:vm -Dhudson.slaves.NodeProvisioner.initialDelay=0 -Dhudson.slaves.NodeProvisioner.MARGIN=50 -Dhudson.slaves.NodeProvisioner.MARGIN0=0.85              value: -Xmx800m -XshowSettings:vm -Dhudson.slaves.NodeProvisioner.initialDelay=0 -Dhudson.slaves.NodeProvisioner.MARGIN=50 -Dhudson.slaves.NodeProvisioner.MARGIN0=0.85          volumeMounts:            - name: jenkins-home              mountPath: /var/jenkins_home            - name: docker              mountPath: /usr/bin/docker            - name: docker-sock              mountPath: /var/run/docker.sock          securityContext:            privileged: true      volumes:        - name: docker          hostPath:            path: /usr/bin/docker        - name: docker-sock          hostPath:            path: /var/run/docker.sock  volumeClaimTemplates:  - metadata:      name: jenkins-home      # annotations:      #   volume.beta.kubernetes.io/storage-class: anything    spec:      accessModes: [ "ReadWriteOnce" ]      resources:        requests:          storage: 1Gi---apiVersion: v1kind: Servicemetadata:  name: jenkins  namespace: default  annotations:    # ensure the client ip is propagated to avoid the invalid crumb issue (k8s <1.7)    # service.beta.kubernetes.io/external-traffic: OnlyLocalspec:  type: NodePort  selector:    name: jenkins  # k8s 1.7+  externalTrafficPolicy: Local  ports:    -      name: http      port: 80      targetPort: 8080      protocol: TCP    -      name: agent      port: 50000      protocol: TCP

2、登录并配置Jenkins

1）登录咋说呢，上图吧

找到服务端口

2）浏览器输入node的ip加上端口，诸如：http://192.168.16.131:32453，就可以了

3）装插件，kubernetes plugin

4）配凭据，一个是登录gitee的（下代码），一个是登录docker仓库的（pull/push镜像），还一个是ssh登录k8s的(deploy)

3、找个demo项目吧

看到这了，star/fork一下行不行，看提交记录就知道差点搞疯了！！！

https://gitee.com/chenqq/petclinic/

4、配下流水线

5、enjoy it!!!

如果持久化存储卷声明一直在pending，参考如下，重新设置状态：

{  "kind": "PersistentVolumeClaim",  "apiVersion": "v1",  "metadata": {    "name": "jenkins-home-jenkins-0",    "namespace": "default",    "selfLink": "/api/v1/namespaces/default/persistentvolumeclaims/jenkins-home-jenkins-0",    "uid": "e0e85f5b-b64b-11e9-acc8-000c29e92529",    "resourceVersion": "649259",    "creationTimestamp": "2019-08-04T00:07:42Z",    "labels": {      "name": "jenkins"    },    "annotations": {      "pv.kubernetes.io/bind-completed": "yes",      "pv.kubernetes.io/bound-by-controller": "yes"    },    "finalizers": [      "kubernetes.io/pvc-protection"    ]  },  "spec": {    "accessModes": [      "ReadWriteOnce"    ],    "resources": {      "requests": {        "storage": "1Gi"      }    },    "volumeName": "jenkins-1",    "volumeMode": "Filesystem",    "dataSource": null  },  "status": {    "phase": "Bound",    "accessModes": [      "ReadWriteOnce"    ],    "capacity": {      "storage": "10Gi"    }  }}

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