1-Jenkins - 容器迁移

before

基于jenkinsci/blueocean:latest镜像的Jenkins

先说要干什么?
我在香港的阿里云服务器搭建了Jenkins的容器环境,现在要在本机的虚拟中使用该Jenkins容器,因为下载插件太难了......

操作流程

  1. 在香港阿里云服务器上根据配置好环境的Jenkins容器创建一个镜像
  2. 将该镜像上传到docker hub
  3. 本机的虚拟机从docker hub中拉取镜像,在本地运行一个容器

准备工作

创建仓库

提前在docker hub上创建一个仓库(如果你没有仓库的话)
当你成功登陆docker hub后,点击Repositories选项,点击Create Repository来创建:

填写镜像名称和描述及设置公有还有私有:

登录到docker hub

在远程服务器中,首先要登录到docker hub,后续直接上传即可。

[root@r ~]# docker login
Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com to create one.
Username: wangzhangkai
Password: 
WARNING! Your password will be stored unencrypted in /root/.docker/config.json.
Configure a credential helper to remove this warning. See
https://docs.docker.com/engine/reference/commandline/login/#credentials-store

Login Succeeded

制作镜像

首选,我有一个目前正在运行的并且配置好各种环境的容器s267

[root@r ~]# docker ps | grep s267
a421ad615576        jenkinsci/blueocean:latest   "/sbin/tini -- /usr/…"   24 hours ago        Up 24 hours         0.0.0.0:50000->50000/tcp, 0.0.0.0:6010->8080/tcp   s267

我根据该s267容器导出一个镜像:

[root@r ~]# docker commit --author zhangkai --message "基于jenkinsci/blueocean:latest镜像的新镜像,配置好了Python环境和allure等插件" s267 tmpjenkins:1.0
sha256:9fbf8dc320dde695898a5b0956d982f7d9a62a66453825f243b690e3583d4851

PS:这里你也可以使用Dockerfile来完成
接下来,使用tag命令打个标签:

[root@r ~]# docker tag tmpjenkins:1.0 wangzhangkai/jenkins:1.0
[root@r ~]# docker images | grep jenkins
tmpjenkins             1.0                 9fbf8dc320dd        34 seconds ago      805MB
wangzhangkai/jenkins   1.0                 9fbf8dc320dd        34 seconds ago      805MB
jenkinsci/blueocean    latest              789f2766377f        40 hours ago        567MB

上述三个镜像:

  • tmpjenkins:1.0是使用commit导出的镜像。
  • wangzhangkai/jenkins:1.0是使用tag命令打得标签,我们后续也就是将这个镜像push到docker hub的仓库去。
  • jenkinsci/blueocean:latest是容器s267的基础镜像。

另外,tag命令打标签,必须是your username/image:tag这种格式。

上传镜像到docker hub

现在,就可以直接使用push将服务器上镜像推送到docker hub的仓库中:

[root@r ~]# docker push wangzhangkai/jenkins:1.0
The push refers to repository [docker.io/wangzhangkai/jenkins]
a6ef5fec03b9: Pushed 
f8ea01675f0a: Mounted from jenkinsci/blueocean 
440f8c788004: Mounted from jenkinsci/blueocean 
f416194dc11c: Mounted from jenkinsci/blueocean 
3985c8e5583d: Mounted from jenkinsci/blueocean 
aa0da59b5e96: Mounted from jenkinsci/blueocean 
213d58243292: Mounted from jenkinsci/blueocean 
c26aca99a218: Mounted from jenkinsci/blueocean 
1cc8898ea742: Mounted from jenkinsci/blueocean 
0be3891e9475: Mounted from jenkinsci/blueocean 
f5abc16eaea6: Mounted from jenkinsci/blueocean 
83320167bce4: Mounted from jenkinsci/blueocean 
dedc7367e939: Mounted from jenkinsci/blueocean 
ceaf9e1ebef5: Mounted from jenkinsci/blueocean 
9b9b7f3d56a0: Mounted from jenkinsci/blueocean 
f1b5933fe4b5: Mounted from jenkinsci/blueocean 
1.0: digest: sha256:8778ae21ef9f2956117546e554ce2f35c7e8a29d9e8358f6ffa6d7ff01acd2a2 size: 3669

推送过程较慢,毕竟是800M左右的镜像!所以,这里也说点题外话,如果有可能尽量的不要这么搞,因为最开始的jenkinsci/blueocean:latest镜像才500多M,在经过一顿七上八下,BABA后,就到了800多M,等时间长了,鬼知道这个新镜像到底多了哪些东西!

现在,在你的docker hub的镜像仓库中,就能发现新上传的镜像了:

从docker hub拉取镜像

使用pull拉取镜像:

[root@C ~]# docker pull wangzhangkai/jenkins:1.0
1.0: Pulling from wangzhangkai/jenkins
e7c96db7181b: Pull complete 
f910a506b6cb: Pull complete 
c2274a1a0e27: Pull complete 
ad6179c1f162: Pull complete 
8948507790d8: Pull complete 
7f023dd8e094: Pull complete 
015f995a850b: Pull complete 
2ed134814058: Pull complete 
efd571beed1e: Pull complete 
e077c85d8ab4: Pull complete 
b9d3f0bd0869: Pull complete 
d573fc03ec9e: Pull complete 
38bf486c8db9: Pull complete 
d81edeb9528c: Pull complete 
9fed8b71ad42: Pull complete 
c0b333f119e9: Pull complete 
Digest: sha256:8778ae21ef9f2956117546e554ce2f35c7e8a29d9e8358f6ffa6d7ff01acd2a2
Status: Downloaded newer image for wangzhangkai/jenkins:1.0
docker.io/wangzhangkai/jenkins:1.0
[root@C ~]# docker images |grep jenkins
wangzhangkai/jenkins   1.0                 9fbf8dc320dd        42 minutes ago      805MB

启动镜像:

docker run \
  -u root \
  --name myjenkins \
  --restart=always \
  -d \
  -p 6010:8080 \
  -p 50000:50000 \
  --env JAVA_OPTS="-Xmx1024m" \
  -e JAVA_OPTS=-Duser.timezone=Asia/Shanghai \
  -v /etc/localtime:/etc/localtime \
  -v /docker_data/jenkins_home:/var/jenkins_home \
  -v /var/run/docker.sock:/var/run/docker.sock \
  wangzhangkai/jenkins:1.0

欢迎斧正,that's all,see also:

构建自定义docker镜像,上传至docker hub

posted @ 2019-04-09 17:27  听雨危楼  阅读(1156)  评论(0编辑  收藏  举报