Jenkins版本迭代以及回滚

悠悠 2023-08-17 16:59 53阅读 0赞

# 一、摘要 #

在上一篇文章，链接如下：

[https://www.cnblogs.com/xiao987334176/p/11434849.html][https_www.cnblogs.com_xiao987334176_p_11434849.html]

镜像打的是latest版，如果需要回滚的话，就比较麻烦了。

因此，需要修改为参数化构建。镜像的版本，使用时间戳。

本文采用的环境，依然是上一篇的环境，就不多介绍了。

# 二、参数化构建 #

## 发布 ##

修改 ph任务，勾选 此项目参数化构建，点击添加参数，选择Choice Parameter

![1341090-20190929190206138-977627917.png][]

输入参数，这里有2个固定选项，分别是发布和回滚，再点击底部的添加参数，选择String Parameter

![1341090-20190929190359282-852155389.png][]

输入参数，这个版本号，就是来回滚的。

![1341090-20190929190602539-352890931.png][]

再进入到Bulid，修改执行命令

case $Status  in
      Deploy)
        echo "Status:$Status"
        bash -x /root/docker_dir/deploy_docker.sh
        echo "Completing!"
        ;;
      Rollback)
          echo "Status:$Status"
          echo "Version:$Version"
          bash -x /root/docker_dir/rollback_docker.sh
          echo "Completing!"
          ;;
      *)
      exit
          ;;
    esac

效果如下：

![1341090-20190929192106189-851794377.png][]

修改3个shell脚本

deploy\_docker.sh

#!/bin/bash
    
    set -e
    harbor_project="java"
    projectName=$JOB_NAME
    docker_path=${WORKSPACE}
    appName=${JOB_NAME}.jar
    
    # harbor认证用户
    user_name=jenkins
    password=Jenkins@1234
    
    # harbor地址以及tag
    tag=$(date +%s)
    harbor_server=192.168.10.122
    server_path=${harbor_server}
    taget_image=${projectName}:${tag}
    #${BUILD_NUMBER}
    echo ${taget_image}
    
    # 登录docker
    cd ${docker_path}
    sudo docker login ${harbor_server} -u ${user_name} -p ${password}
    
    # 生成镜像并推送到harbor,最后删除本地镜像
    cp ${WORKSPACE}/target/*.jar ${appName}
    sudo docker build --build-arg app=${appName} -t ${taget_image} .
    sudo docker tag ${taget_image} ${server_path}/${harbor_project}/${taget_image}
    echo "The name of image is ${server_path}/${harbor_project}/${taget_image}"
    sudo docker push ${server_path}/${harbor_project}/${taget_image}
    sudo docker rmi -f $(docker images|grep ${projectName}|grep ${tag}|awk '{print $3}'|head -n 1)
    
    # 替换yaml中镜像的版本号
    MASTER="192.168.10.130"
    CONF_DIR="/root/kube-conf"
    
    ssh ${MASTER} sed -i "s/${projectName}:[^.]*/${taget_image}/g" ${CONF_DIR}/${projectName}-rc.yaml

sed命令解释：

$\{projectName\}:\[^.\]\*   表示匹配 项目名:任意长度内容。

rollback\_docker.sh

#!/bin/bash
    
    # 替换yaml中镜像的版本号
    MASTER="192.168.10.130"
    CONF_DIR="/root/kube-conf"
    projectName=${JOB_NAME}
    taget_image=${JOB_NAME}:${Version}
    
    ssh ${MASTER} sed -i "s/${projectName}:[^.]*/${taget_image}/g" ${CONF_DIR}/${projectName}-rc.yaml

reboot\_app.sh

#!/bin/bash
    MASTER="192.168.10.130"
    CONF_DIR="/root/kube-conf"
    ProJ=${JOB_NAME}
    
    #scp ${WORKSPACE}/*.yaml ${MASTER}:${CONF_DIR}
    # Pod running process
    RUN=$(ssh $MASTER kubectl get po|grep -w ${ProJ}|wc -l)
    if [ $RUN -eq 0 ];then
        ssh ${MASTER} kubectl apply -f ${CONF_DIR}/${ProJ}-rc.yaml
        ssh ${MASTER} kubectl apply -f ${CONF_DIR}/${ProJ}-service.yaml
    else
        # Delete and Apply
        ssh ${MASTER} kubectl delete -f ${CONF_DIR}/${ProJ}-rc.yaml
            ssh ${MASTER} kubectl delete -f ${CONF_DIR}/${ProJ}-service.yaml
        ssh ${MASTER} kubectl apply -f ${CONF_DIR}/${ProJ}-rc.yaml
            ssh ${MASTER} kubectl apply -f ${CONF_DIR}/${ProJ}-service.yaml
    fi

点击下面的保存

![1341090-20190929192255550-2092456652.png][]

点击Build with Parameters，选择Deploy，版本不用输入，默认即可。点击开始构建

![1341090-20190929192348221-252224083.png][]

等待任务构建完成后，查看harbor仓库中的ph项目，发现tag就是时间戳。

![1341090-20190929193101021-1270982934.png][]

登陆到k8s的master节点，查看运行中的pod

root@k8s-master:~/kube-conf# kubectl describe po ph-rc-xzbjn 
    Name:           ph-rc-xzbjn
    Namespace:      default
    Priority:       0
    Node:           k8s-node1/192.168.10.131
    Start Time:     Sun, 29 Sep 2019 17:54:43 +0800
    Labels:         app=ph
    Annotations:    cni.projectcalico.org/podIP: 192.168.36.99/32
    Status:         Running
    IP:             192.168.36.99
    Controlled By:  ReplicationController/ph-rc
    Containers:
      ph:
        Container ID:   docker://a403c9051a3aef451b80fae8765b5380029b36073bbf7f87d8d30f20efd2ee77
        Image:          192.168.10.122/java/ph:1569749673

可以发现，镜像已经是指定的版本了。

多点击几次 Build with Parameters，查看harbor的镜像列表

![1341090-20190929193441263-713408353.png][]

# 三、回滚 #

假设说，现在k8s的ph项目使用的版本是 1569749522，发现有问题，需要回滚到上一个版本1569749773。

点击  Build with Parameters，选择Rollback，输入版本号。

![1341090-20190929193741250-284051108.png][]

查看构建任务的控制台输出

![1341090-20190929193855995-2115744447.png][]

登录到k8s master节点，查看运行的pod，镜像是否更换了。

root@k8s-master:~/kube-conf# kubectl describe po ph-rc-rjf2w 
    Name:           ph-rc-rjf2w
    Namespace:      default
    Priority:       0
    Node:           k8s-node1/192.168.10.131
    Start Time:     Sun, 29 Sep 2019 19:38:37 +0800
    Labels:         app=ph
    Annotations:    cni.projectcalico.org/podIP: 192.168.36.100/32
    Status:         Running
    IP:             192.168.36.100
    Controlled By:  ReplicationController/ph-rc
    Containers:
      ph:
        Container ID:   docker://60cf0d1bd21c1f67ddad1ccf6b554111d99d3206e1cb09574fa1cf793540e268
        Image:          192.168.10.122/java/ph:1569749773

发现已经，更改过来了。

本文参考链接：

[https://www.jianshu.com/p/af5fecaa8357][https_www.jianshu.com_p_af5fecaa8357]

[https_www.cnblogs.com_xiao987334176_p_11434849.html]: https://www.cnblogs.com/xiao987334176/p/11434849.html
[1341090-20190929190206138-977627917.png]: /images/20230809/1f118234187f4f87a80722e48820744d.png
[1341090-20190929190359282-852155389.png]: /images/20230809/4dd61f9117c44a58aae2fc544d44c71b.png
[1341090-20190929190602539-352890931.png]: /images/20230809/00a79f74729640d2bc7cae83131d064f.png
[1341090-20190929192106189-851794377.png]: /images/20230809/fdd71866f552402aaf258391a3971022.png
[1341090-20190929192255550-2092456652.png]: /images/20230809/f7c6f2c4394940d39b04c77b34690cfe.png
[1341090-20190929192348221-252224083.png]: /images/20230809/e79ad8da19c34e9baed5350e0fc011e1.png
[1341090-20190929193101021-1270982934.png]: /images/20230809/8f7c59df15ae4be3843ae8e2a6f61cd7.png
[1341090-20190929193441263-713408353.png]: /images/20230809/ca014896ba5e4b20aa8dca3dd6fd4a5b.png
[1341090-20190929193741250-284051108.png]: /images/20230809/4f51f38f32a04407a1c591ec18ff67f6.png
[1341090-20190929193855995-2115744447.png]: /images/20230809/960d9221c29547e8bc88fde4e788f54a.png
[https_www.jianshu.com_p_af5fecaa8357]: https://www.jianshu.com/p/af5fecaa8357