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Docker的使用(1)

Docker的使用(1)

作者: 5号船长 | 来源:发表于2018-11-13 22:19 被阅读10次
    开篇

    Docker 是一个开源的应用容器引擎,基于 Go 语言 并遵从Apache2.0协议开源。

    Docker 可以让开发者打包他们的应用以及依赖包到一个轻量级、可移植的容器中,然后发布到任何流行的 Linux 机器上,也可以实现虚拟化。

    容器是完全使用沙箱机制,相互之间不会有任何接口(类似 iPhone 的 app),更重要的是容器性能开销极低。

    Docker的优点

    1、简化程序:
    Docker 让开发者可以打包他们的应用以及依赖包到一个可移植的容器中,然后发布到任何流行的 Linux 机器上,便可以实现虚拟化。Docker改变了虚拟化的方式,使开发者可以直接将自己的成果放入Docker中进行管理。方便快捷已经是 Docker的最大优势,过去需要用数天乃至数周的 任务,在Docker容器的处理下,只需要数秒就能完成。
    2、避免选择恐惧症:
    如果你有选择恐惧症,还是资深患者。Docker 帮你 打包你的纠结!比如 Docker 镜像;Docker 镜像中包含了运行环境和配置,所以 Docker 可以简化部署多种应用实例工作。比如 Web 应用、后台应用、数据库应用、大数据应用比如 Hadoop 集群、消息队列等等都可以打包成一个镜像部署。
    3、节省开支:
    一方面,云计算时代到来,使开发者不必为了追求效果而配置高额的硬件,Docker 改变了高性能必然高价格的思维定势。Docker 与云的结合,让云空间得到更充分的利用。不仅解决了硬件管理的问题,也改变了虚拟化的方式。

    Docker的安装

    docker下载网址:https://www.docker.com/get-started

    Docker下载.png
    可以根据自己的系统下载对应的版本进行安装即可。
    Docker使用

    我们可以直接输入 docker 命令来查看到 Docker 客户端的所有命令选项:

    lssdeMacBook-Pro:~ lss$ docker
    
    Usage:  docker [OPTIONS] COMMAND
    
    A self-sufficient runtime for containers
    
    Options:
          --config string      Location of client config files (default
                               "/Users/lss/.docker")
      -D, --debug              Enable debug mode
      -H, --host list          Daemon socket(s) to connect to
      -l, --log-level string   Set the logging level
                               ("debug"|"info"|"warn"|"error"|"fatal")
                               (default "info")
          --tls                Use TLS; implied by --tlsverify
          --tlscacert string   Trust certs signed only by this CA (default
                               "/Users/lss/.docker/ca.pem")
          --tlscert string     Path to TLS certificate file (default
                               "/Users/lss/.docker/cert.pem")
          --tlskey string      Path to TLS key file (default
                               "/Users/lss/.docker/key.pem")
          --tlsverify          Use TLS and verify the remote
      -v, --version            Print version information and quit
    
    Management Commands:
      checkpoint  Manage checkpoints
      config      Manage Docker configs
      container   Manage containers
      image       Manage images
      network     Manage networks
      node        Manage Swarm nodes
      plugin      Manage plugins
      secret      Manage Docker secrets
      service     Manage services
      stack       Manage Docker stacks
      swarm       Manage Swarm
      system      Manage Docker
      trust       Manage trust on Docker images
      volume      Manage volumes
    
    Commands:
      attach      Attach local standard input, output, and error streams to a running container
      build       Build an image from a Dockerfile
      commit      Create a new image from a container's changes
      cp          Copy files/folders between a container and the local filesystem
      create      Create a new container
      deploy      Deploy a new stack or update an existing stack
      diff        Inspect changes to files or directories on a container's filesystem
      events      Get real time events from the server
      exec        Run a command in a running container
      export      Export a container's filesystem as a tar archive
      history     Show the history of an image
      images      List images
      import      Import the contents from a tarball to create a filesystem image
      info        Display system-wide information
      inspect     Return low-level information on Docker objects
      kill        Kill one or more running containers
      load        Load an image from a tar archive or STDIN
      login       Log in to a Docker registry
      logout      Log out from a Docker registry
      logs        Fetch the logs of a container
      pause       Pause all processes within one or more containers
      port        List port mappings or a specific mapping for the container
      ps          List containers
      pull        Pull an image or a repository from a registry
      push        Push an image or a repository to a registry
      rename      Rename a container
      restart     Restart one or more containers
      rm          Remove one or more containers
      rmi         Remove one or more images
      run         Run a command in a new container
      save        Save one or more images to a tar archive (streamed to STDOUT by default)
      search      Search the Docker Hub for images
      start       Start one or more stopped containers
      stats       Display a live stream of container(s) resource usage statistics
      stop        Stop one or more running containers
      tag         Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE
      top         Display the running processes of a container
      unpause     Unpause all processes within one or more containers
      update      Update configuration of one or more containers
      version     Show the Docker version information
      wait        Block until one or more containers stop, then print their exit codes
    
    Run 'docker COMMAND --help' for more information on a command.
    
    Docker常用命令:
    docker image pull hello-world  下载一个镜像
    docker images  查看已经安装的docker镜像
    

    下一篇在接着更新吧!

    Docker资源汇总

    Docker官方英文资源
    docker官网:http://www.docker.com
    Docker windows入门:https://docs.docker.com/windows/
    Docker Linux 入门:https://docs.docker.com/linux/
    Docker mac 入门:https://docs.docker.com/mac/
    Docker 用户指引:https://docs.docker.com/engine/userguide/
    Docker 官方博客:http://blog.docker.com/
    Docker Hub: https://hub.docker.com/
    Docker开源: https://www.docker.com/open-source

    Docker中文资源
    Docker中文网站:http://www.docker.org.cn
    Docker安装手册:http://www.docker.org.cn/book/install.html
    一小时Docker教程 :https://blog.csphere.cn/archives/22
    Docker 从入门到实践:http://dockerpool.com/static/books/docker_practice/index.html
    Docker中文指南:http://www.widuu.com/chinese_docker/index.html

    其它资源
    https://segmentfault.com/t/docker
    https://github.com/docker/docker
    https://wiki.openstack.org/wiki/Docker
    https://wiki.archlinux.org/index.php/Docker

    总结

    Dockerfile 文件


    具体的详细内容下一篇在更吧,我瞌睡的不行了!

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