docker命令详解

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#docker #容器 #运维

于 2017-07-03 15:55:16 首次发布

docker命令详解

  1 # docker --help
  2 Usage: docker [OPTIONS] COMMAND [arg...]
  3        docker daemon [ --help | ... ]
  4        docker [ -h | --help | -v | --version ]
  5 
  6 A self-sufficient runtime for containers.
  7 
  8 Options:
  9 
 10   --config=~/.docker              Location of client config files
 11   -D, --debug=false               Enable debug mode
 12   -H, --host=[]                   Daemon socket(s) to connect to
 13   -h, --help=false                Print usage
 14   -l, --log-level=info            Set the logging level
 15   --tls=false                     Use TLS; implied by --tlsverify
 16   --tlscacert=~/.docker/ca.pem    Trust certs signed only by this CA
 17   --tlscert=~/.docker/cert.pem    Path to TLS certificate file
 18   --tlskey=~/.docker/key.pem      Path to TLS key file
 19   --tlsverify=false               Use TLS and verify the remote
 20   -v, --version=false             Print version information and quit
 21 
 22 Commands:
 23     attach    Attach to a running container  
 24               --将终端依附到容器上
 25               1> 运行一个交互型容器
 26                  [root@localhost ~]# docker run -i -t centos /bin/bash
 27                  [root@f0a02b473067 /]# 
 28               2> 在另一个窗口上查看该容器的状态
 29                  [root@localhost ~]# docker ps -a
 30                  CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS      PORTS       NAMES
 31                  d4a75f165ce6        centos              "/bin/bash"         5 seconds ago       Up 5 seconds            cranky_mahavira
 32               3> 退出第一步中运行的容器
 33                  [root@d4a75f165ce6 /]# exit
 34                   exit
 35               4> 查看该容器的状态
 36                  [root@localhost ~]# docker ps -a
 37                  CONTAINER ID        IMAGE           COMMAND           CREATED             STATUS                  PORTS    NAMES
 38                  d4a75f165ce6        centos          "/bin/bash"       2 minutes ago       Exited (0) 23 seconds ago        cranky_mahavira
 39                  可见此时容器的状态是Exited，那么，如何再次运行这个容器呢？可以使用docker start命令
 40               5> 再次运行该容器
 41                  [root@localhost ~]# docker start cranky_mahavira
 42                  cranky_mahavira
 43               6> 再次查看该容器的状态
 44                  [root@localhost ~]# docker ps -a
 45                  CONTAINER ID        IMAGE          COMMAND             CREATED             STATUS              PORTS      NAMES
 46                  d4a75f165ce6        centos         "/bin/bash"         6 minutes ago       Up 29 seconds                  cranky_mahavira
 47                  因为该容器是交互型的，但此刻我们发现没有具体的终端可以与之交互，这时可使用attach命令。
 48               7> 通过attach命令进行交互
 49                  [root@localhost ~]# docker attach cranky_mahavira
 50                  [root@d4a75f16