docker镜像的使用

 查看镜像
# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
centos_wget         latest              558fdd6d6680        5 minutes ago       286.6 MB
nginx               latest              61d205ea917c        10 weeks ago        182.5 MB
centos              latest              bac949ce964b        12 weeks ago        192.5 MB
进入容器
docker run -it centos_wget /bin/bash
[root@6a7dbb0f3e01 /]#
查看容器的运行状态
# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                     PORTS               NAMES
6a7dbb0f3e01        centos_wget         "/bin/bash"         5 minutes ago       Exited (0) 2 minutes ago                       focused_blackwell   
65e3599aea81        centos              "/bin/bash"         25 minutes ago      Up 20 minutes                                  admiring_jones      
删除容器
# docker rm 6a7dbb0f3e01
6a7dbb0f3e01
启动容器
# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                     PORTS               NAMES
514af8d36e0d        centos_wget         "/bin/bash"         10 seconds ago      Exited (0) 7 seconds ago                       cranky_shockley     
65e3599aea81        centos              "/bin/bash"         27 minutes ago      Up 22 minutes                                  admiring_jones      
# docker start 514af8d36e0d
514af8d36e0d
后台进入容器
# docker exec -it 514af8d36e0d /bin/bash
[root@514af8d36e0d /]# ls
anaconda-post.log  dev  home  lib64       media  opt   root  sbin  sys  usr
bin                etc  lib   lost+found  mnt    proc  run   srv   tmp  var
生成新镜像
# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
514af8d36e0d        centos_wget         "/bin/bash"         4 minutes ago       Up 3 minutes                            cranky_shockley     
65e3599aea81        centos              "/bin/bash"         31 minutes ago      Up 26 minutes                           admiring_jones      
# docker commit -m "xin_images" -a "alex" 514af8d36e0d  centos_xin
957ea62b09c663968b9eca66868e22e9404a5646ddc75875ad8f3fab5ee1a4e2
# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
centos_xin          latest              957ea62b09c6        21 seconds ago      286.6 MB
centos_wget         latest              558fdd6d6680        15 minutes ago      286.6 MB