交付Jenkins 到k8s集群

docker pull jenkins/jenkins:2.190.3

mkdir -p /data/dockerfile/jenkins  && cd /data/dockerfile/jenkins 
vim dockerfile
FROM jenkins/jenkins:2.190.3
USER root
ADD id_rsa /root/.ssh/id_rsa
ADD config.json /root/.docker/config.json  #把200 的/root/.docker/config.json cp 到Jenkins容器里面。
ADD get-docker.sh /get-docker.sh
RUN echo "    StrictHostKeyChecking no" >> /etc/ssh/ssh_config &&    /get-docker.sh --mirror Aliyun   &&    /bin/cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime &&\ 
    echo ‘Asia/Shanghai‘ >/etc/timezone

ssh-keygen -t rsa -b 2048 -C "1xxx@qq.com" -N "" -f /root/.ssh/id_rsa  #这个邮箱要用自己的，后面和gitee进行联动。


基于 jenkins/jenkins:2.190.3 构建一个新的Jenkins 镜像
dockerfile 说明：
设置容器内的时区
将ssh私钥加入到容器，后来从gitee 拉取代码会用到，配对的公钥应配置在gitlab中
加入了登录自建harbor仓库的config文件
在容器里安装docker客户端

[root@hdss7-200 jenkins]# ll
total 28
-rw------- 1 root root 151 May 4 21:48 config.json
-rw-r--r-- 1 root root 381 May 4 22:16 dockerfile
-rwxr-xr-x 1 root root 13328 May 4 21:34 get-docker.sh
-rw------- 1 root root 1679 May 4 21:38 id_rsa
[root@hdss7-200 jenkins]# pwd
/data/dockerfile/jenkins

# 构建镜像,时间比较长。
docker build . -t harbor.od.com/infra/jenkins:v2.190.3 

构建好了后 运行该镜像 测试到gitee 的连接性：

docker run --rm harbor.od.com/infra/jenkins:v2.190.3 ssh -i /root/.ssh/id_rsa -T git@gitee.com
Warning: Permanently added ‘gitee.com,212.64.62.174‘ (ECDSA) to the list of known hosts.
Hi xxx! You‘ve successfully authenticated, but GITEE.COM does not provide shell access.

# 在所有主机上：
yum install nfs-utils -y

#在7.200 上  
vim /etc/exports
/data/nfs-volume 10.4.7.0/24(rw,no_root_squash)

mkdir -p /data/nfs-volume
systemctl start nfs  
systemctl enable nfs

docker pull jenkins/jenkins:2.190.3  #Jenkins 镜像

[root@hdss7-200 jenkins]# cat dp.yaml 
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
  name: jenkins
  namespace: infra
  labels: 
    name: jenkins
spec:
  replicas: 1
  selector:
    matchLabels: 
      name: jenkins
  template:
    metadata:
      labels: 
        app: jenkins 
        name: jenkins
    spec:
      volumes:
      - name: data
        nfs: 
          server: hdss7-200
          path: /data/nfs-volume/jenkins_home
      - name: docker
        hostPath: 
          path: /run/docker.sock
          type: ‘‘
      containers:
      - name: jenkins
        image: harbor.od.com/infra/jenkins:v2.190.3
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 8080
          protocol: TCP
        env:
        - name: JAVA_OPTS
          value: -Xmx1024m -Xms1024m
        volumeMounts:
        - name: data
          mountPath: /var/jenkins_home
        - name: docker
          mountPath: /run/docker.sock
      imagePullSecrets:
      - name: harbor
      securityContext: 
        runAsUser: 0
  strategy:
    type: RollingUpdate
    rollingUpdate: 
      maxUnavailable: 1
      maxSurge: 1
  revisionHistoryLimit: 7
  progressDeadlineSeconds: 600


=============================

 spec:
      volumes:
      - name: data
        nfs: 
          server: hdss7-200
          path: /data/nfs-volume/jenkins_home
指定 远程的nfs server ip 和远程路径
=============================================

[root@hdss7-200 jenkins]# cat ingress.yaml
kind: Ingress
apiVersion: extensions/v1beta1
metadata: 
  name: jenkins
  namespace: infra
spec:
  rules:
  - host: jenkins.od.com
    http:
      paths:
      - path: /
        backend: 
          serviceName: jenkins
          servicePort: 80

[root@hdss7-200 jenkins]# cat svc.yaml 
kind: Service
apiVersion: v1
metadata: 
  name: jenkins
  namespace: infra
spec:
  type: NodePort
  ports:
  - protocol: TCP
    port: 80
    targetPort: 8080
    nodePort: 22143
  selector:
    app: jenkins

然后 apply -f 这四个文件

在 dns server 7.11 上 增加A 记录 jenkins A 10.4.7.10

浏览器访问  jenkins.od.com 

初始化密码的位置 ，在nfs server 200 上。  
jenkins_home]# cat /data/nfs-volume/jenkins_home/secrets/initialAdminPassword