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docker打包配置好的镜像(docker镜像的导入和导出的实现)

时间:2021-10-25 10:26:15类别:服务器

docker打包配置好的镜像

docker镜像的导入和导出的实现

gitlab 的docker使用

gitlab docker

启动命令

  • docker run -d -p 3000:80 twang2218/gitlab-ce-zh:9.0.3
    
    docker run -d -p 8080:80 gitlab/gitlab-ce:latest
    
  • 将容器修改提交到镜像

  • # 进入容器内部
    [root@#localhost docker]# docker run -ti ubuntu:14.04 /bin/bash
    root@812a997f614a:/# id 
    uid=0(root) gid=0(root) groups=0(root)
    
    #做了一些修改
    root@812a997f614a:/# echo update>update.txt
    root@812a997f614a:/# exit
    exit
    
    [root@#localhost docker]# docker ps -a
    CONTAINER ID    IMAGE             COMMAND         CREATED       STATUS              PORTS                  NAMES
    812a997f614a    ubuntu:14.04          "/bin/bash"       7 minutes ago    Exited (0) 22 seconds ago                        zealous_euler
    69304dea46c7    gitlab/gitlab-ce:latest    "/assets/wrapper"    About an hour ago  Exited (127) 44 minutes ago                       competent_minsky
    67ba866e21b0    gitlab/gitlab-ce:latest    "/assets/wrapper"    2 hours ago     Exited (137) About an hour ago                      hungry_hoover
    2a3d08a0a2ff    twang2218/gitlab-ce-zh:9.0.3  "/assets/wrapper"    2 hours ago     Exited (137) About an hour ago                      nervous_wozniak
    6db49540be99    twang2218/gitlab-ce-zh:9.0.3  "/assets/wrapper"    2 hours ago     Exited (255) 2 hours ago     22/tcp, 443/tcp, 0.0.0.0:3000->80/tcp  romantic_elion
    b08a6d6ed716    gitlab/gitlab-ce:latest    "/assets/wrapper"    2 hours ago     Exited (255) 2 hours ago     22/tcp, 443/tcp, 0.0.0.0:8080->80/tcp  competent_brahmagupta
    33fd0b1ebd27    gitlab/gitlab-ce:latest    "/assets/wrapper"    2 hours ago     Exited (127) 2 hours ago                         loving_brattain
    6f53620a930c    twang2218/gitlab-ce-zh:9.0.3  "/assets/wrapper"    3 hours ago     Exited (127) 2 hours ago                         brave_galileo
    88df78f77c4e    ubuntu:14.04          "sleep 360"       4 days ago     Exited (137) 4 days ago                         testcopy
    81a879a36bd3    wordpress           "docker-entrypoint..."  4 days ago     Exited (0) 4 days ago                          wordpress
    a57a3cc492b7    mysql             "docker-entrypoint..."  4 days ago     Exited (0) 4 days ago                          mysqlwp
    
    # 将修改多的镜像保存成一个新的
    [root@#localhost docker]# docker commit 812a997f614a ubuntu:update
    sha256:317f102584605694da424bc96764559a1ccfda13943353f4cbdfd89c96515e6b
    
    [root@#localhost docker]# docker images
    REPOSITORY         TAG         IMAGE ID      CREATED       SIZE
    ubuntu           update       317f10258460    5 seconds ago    188 MB
    twang2218/gitlab-ce-zh   9.0.3        36172b5fefab    44 hours ago    1.19 GB
    gitlab/gitlab-ce      latest       5eff2e44957c    2 days ago     1.11 GB
    mysql            latest       9546ca122d3a    8 days ago     407 MB
    wordpress          latest       4ad41adc2794    2 weeks ago     401 MB
    ubuntu           14.04        7c09e61e9035    5 weeks ago     188 MB
    daocloud.io/library/nginx  1.7.1        e3e043d3ed2f    2 years ago     499 MB
    
    # 查看修改多的镜像和原来镜像之间的差异
    [root@#localhost docker]# docker diff 812a997f614a
    C /var
    C /var/cache
    C /var/cache/apt
    D /var/cache/apt/srcpkgcache.bin
    D /var/cache/apt/pkgcache.bin
    C /var/lib
    C /var/lib/apt
    C /var/lib/apt/lists
    A /var/lib/apt/lists/lock
    A /var/lib/apt/lists/partial
    A /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_trusty-updates_InRelease
    A /update.txt
    C /root
    A /root/.bash_history
    [root@#localhost docker]# 
    
  • 镜像的导入和导出

    export 和improt

  • [root@#localhost docker]# docker run -ti ubuntu:update /bin/bash
    root@cbe3cb7799ed:/# ls
    bin boot dev etc home lib lib64 media mnt opt proc root run sbin srv sys tmp update.txt usr var
    
    [root@#localhost docker]# 
    [root@#localhost docker]# docker ps -a
    CONTAINER ID    IMAGE             COMMAND         CREATED       STATUS            PORTS                  NAMES
    cbe3cb7799ed    ubuntu:update         "/bin/bash"       47 seconds ago   Exited (1) 6 seconds ago                       adoring_kare
    812a997f614a    ubuntu:14.04          "/bin/bash"       16 minutes ago   Exited (0) 8 minutes ago                       zealous_euler
    69304dea46c7    gitlab/gitlab-ce:latest    "/assets/wrapper"    2 hours ago     Exited (127) 53 minutes ago                      competent_minsky
    67ba866e21b0    gitlab/gitlab-ce:latest    "/assets/wrapper"    2 hours ago     Exited (137) 2 hours ago                       hungry_hoover
    2a3d08a0a2ff    twang2218/gitlab-ce-zh:9.0.3  "/assets/wrapper"    2 hours ago     Exited (137) 2 hours ago                       nervous_wozniak
    6db49540be99    twang2218/gitlab-ce-zh:9.0.3  "/assets/wrapper"    2 hours ago     Exited (255) 2 hours ago   22/tcp, 443/tcp, 0.0.0.0:3000->80/tcp  romantic_elion
    b08a6d6ed716    gitlab/gitlab-ce:latest    "/assets/wrapper"    2 hours ago     Exited (255) 2 hours ago   22/tcp, 443/tcp, 0.0.0.0:8080->80/tcp  competent_brahmagupta
    33fd0b1ebd27    gitlab/gitlab-ce:latest    "/assets/wrapper"    3 hours ago     Exited (127) 2 hours ago                       loving_brattain
    6f53620a930c    twang2218/gitlab-ce-zh:9.0.3  "/assets/wrapper"    3 hours ago     Exited (127) 2 hours ago                       brave_galileo
    88df78f77c4e    ubuntu:14.04          "sleep 360"       4 days ago     Exited (137) 4 days ago                        testcopy
    81a879a36bd3    wordpress           "docker-entrypoint..."  4 days ago     Exited (0) 4 days ago                         wordpress
    a57a3cc492b7    mysql             "docker-entrypoint..."  4 days ago     Exited (0) 4 days ago                         mysqlwp
    
    # 将镜像导出到文件
    [root@#localhost docker]# docker export cbe3cb7799ed > update.tar
    
    
    # 创建一个新静像从基于导出的文件
    [root@#localhost /]# docker import - update < update.tar 
    sha256:fd00d520a43eb5dc6cca8717fe0ca04cfdc53b02cad2fb5b50d877b8e6d6c3bc
    [root@#localhost /]# docker images
    REPOSITORY         TAG         IMAGE ID      CREATED       SIZE
    update           latest       fd00d520a43e    13 seconds ago   165 MB
    ubuntu           update       317f10258460    11 minutes ago   188 MB
    twang2218/gitlab-ce-zh   9.0.3        36172b5fefab    44 hours ago    1.19 GB
    gitlab/gitlab-ce      latest       5eff2e44957c    2 days ago     1.11 GB
    mysql            latest       9546ca122d3a    8 days ago     407 MB
    wordpress          latest       4ad41adc2794    2 weeks ago     401 MB
    ubuntu           14.04        7c09e61e9035    5 weeks ago     188 MB
    daocloud.io/library/nginx  1.7.1        e3e043d3ed2f    2 years ago     499 MB
    [root@#localhost /]# 
    
  • save 和load

    (像当与镜像的备份和恢复)

  • # update是一个已经存在的镜像
    [root@#localhost /]# docker save -o update1.tar update
    [root@#localhost /]# ls
    bin boot dev etc home lib lib64 media mnt opt proc root run sbin srv sys tmp update1.tar update.tar usr var
    [root@#localhost /]# du -sh update1.tar 
    166M  update1.tar
    
    # 删除update镜像
    [root@#localhost /]# docker rmi update
    Untagged: update:latest
    Deleted: sha256:fd00d520a43eb5dc6cca8717fe0ca04cfdc53b02cad2fb5b50d877b8e6d6c3bc
    Deleted: sha256:14cc8cd7b783152682835346e5fe90860a9feeb684866688692285319d4e97ad
    
    [root@#localhost /]# docker images
    REPOSITORY         TAG         IMAGE ID      CREATED       SIZE
    ubuntu           update       317f10258460    16 minutes ago   188 MB
    twang2218/gitlab-ce-zh   9.0.3        36172b5fefab    44 hours ago    1.19 GB
    gitlab/gitlab-ce      latest       5eff2e44957c    2 days ago     1.11 GB
    mysql            latest       9546ca122d3a    8 days ago     407 MB
    wordpress          latest       4ad41adc2794    2 weeks ago     401 MB
    ubuntu           14.04        7c09e61e9035    5 weeks ago     188 MB
    daocloud.io/library/nginx  1.7.1        e3e043d3ed2f    2 years ago     499 MB
    
    #导入镜像
    [root@#localhost /]# docker load < update1.tar 
    14cc8cd7b783: Loading layer [==================================================>] 173.8 MB/173.8 MB
    Loaded image: update:latest
    [root@#localhost /]# docker images
    REPOSITORY         TAG         IMAGE ID      CREATED       SIZE
    update           latest       fd00d520a43e    6 minutes ago    165 MB
    ubuntu           update       317f10258460    17 minutes ago   188 MB
    twang2218/gitlab-ce-zh   9.0.3        36172b5fefab    44 hours ago    1.19 GB
    gitlab/gitlab-ce      latest       5eff2e44957c    2 days ago     1.11 GB
    mysql            latest       9546ca122d3a    8 days ago     407 MB
    wordpress          latest       4ad41adc2794    2 weeks ago     401 MB
    ubuntu           14.04        7c09e61e9035    5 weeks ago     188 MB
    daocloud.io/library/nginx  1.7.1        e3e043d3ed2f    2 years ago     499 MB
    [root@#localhost /]# 
    
    
  • Dockerfile

  • [root@#localhost ~]# mkdir docker_file
    [root@#localhost ~]# cd docker_file/
    
    [root@#localhost docker_file]# vi Dockerfile 
    
    [root@#localhost docker_file]# cat Dockerfile 
    FROM ubuntu:14.04
    
    ENTRYPOINT ["/bin/echo"]
    
    [root@#localhost docker_file]# docker build .
    Sending build context to Docker daemon 2.048 kB
    Step 1/2 : FROM ubuntu:14.04
     ---> 7c09e61e9035
    Step 2/2 : ENTRYPOINT /bin/echo
     ---> Running in d53f31b93355
     ---> 26dd06d2e5a5
    Removing intermediate container d53f31b93355
    Successfully built 26dd06d2e5a5
    
    #运行镜像
    
    [root@#localhost docker_file]# docker run 26dd06d2e5a5
    
    #加入一个参数
    
    [root@#localhost docker_file]# docker run 26dd06d2e5a5 hello world
    hello world
    [root@#localhost docker_file]# vi Dockerfile 
    [root@#localhost docker_file]# docker run 26dd06d2e5a5 hello world
    hello world
    
    
    #
    [root@#localhost docker_file]# cat Dockerfile 
    FROM ubuntu:14.04
    
    #ENTRYPOINT ["/bin/echo","Hi world!"]
    CMD ["/bin/echo","Hi world!"]
    
    [root@#localhost docker_file]# docker build .
    [root@#localhost docker_file]# docker run 12458a717ced
    Hi world!
    
    
    [root@#localhost docker_file]# docker run 12458a717ced /bin/date 
    Sat Apr 8 12:08:14 UTC 2017
    
    
    
    
  • 构建的时候打个标签

  • [root@#localhost docker_file]# docker build -t yang:01 .
    Sending build context to Docker daemon 3.584 kB
    Step 1/2 : FROM ubuntu:14.04
     ---> 7c09e61e9035
    Step 2/2 : CMD /bin/echo Hi world!
     ---> Running in 94e510f085d7
     ---> 6b33c8a6a32f
    Removing intermediate container 94e510f085d7
    Successfully built 6b33c8a6a32f
    [root@#localhost docker_file]# docker images
    REPOSITORY         TAG         IMAGE ID      CREATED       SIZE
    yang            01         6b33c8a6a32f    5 seconds ago    188 MB
    update           latest       fd00d520a43e    29 minutes ago   165 MB
    ubuntu           update       317f10258460    41 minutes ago   188 MB
    twang2218/gitlab-ce-zh   9.0.3        36172b5fefab    44 hours ago    1.19 GB
    gitlab/gitlab-ce      latest       5eff2e44957c    2 days ago     1.11 GB
    mysql            latest       9546ca122d3a    8 days ago     407 MB
    wordpress          latest       4ad41adc2794    2 weeks ago     401 MB
    ubuntu           14.04        7c09e61e9035    5 weeks ago     188 MB
    daocloud.io/library/nginx  1.7.1        e3e043d3ed2f    2 years ago     499 MB
    [root@#localhost docker_file]# 
    
    
    
  • 构建实例

    将flask应用 打包的镜像中

    编写python程序 hellp.py

  • #!/usr/bin/env python
    
    from flask import Flask
    app = Flask(__name__)
    
    @app.route('/hi')
    def hello_world():
      return 'Hello World!'
    
    if __name__ == '__main__':
      app.run(host='0.0.0.0', port=5000)
    
  • 编写Dockerfile

  • FROM ubuntu:14.04
    
    RUN apt-get update
    RUN apt-get install -y python
    RUN apt-get install -y python-pip
    RUN apt-get clean all
    
    RUN pip install flask
    
    ADD hello.py /tmp/hello.py
    
    EXPOSE 5000
    
    CMD ["python","/tmp/hello.py"]
    
  • 到此这篇关于docker镜像的导入和导出的实现的文章就介绍到这了,更多相关docker镜像导入导出内容请搜索开心学习网以前的文章或继续浏览下面的相关文章希望大家以后多多支持开心学习网!

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