公共镜像

查看已下载的镜像

  1. sudo docker images

下载最新版本的ubuntu镜像

  1. sudo docker pull ubuntu

删除已下载的镜像

  1. sudo docker rmi ubuntu

搜索镜像

  1. sudo docker search ngnix

自定义镜像

根据已有镜像创建新镜像

  1. ubuntu@virtual-server-ubuntu-20-04-4:~$ sudo docker ps
  2. CONTAINER ID   IMAGE     COMMAND       CREATED             STATUS         PORTS     NAMES
  3. 1cf9e05a055b   ubuntu    "/bin/bash"   About an hour ago   Up 8 seconds             ubuntu-test
  9. ubuntu@virtual-server-ubuntu-20-04-4:~$ sudo docker commit -a "HowieZhao" -m "test" 1cf howie/ubuntu/1
  10. sha256:8efead00202f03cb3e94a0f7dd1a7f245b782a54482a1e2d6bae33c927fc4157
  15. ubuntu@virtual-server-ubuntu-20-04-4:~$ sudo docker images
  16. REPOSITORY       TAG       IMAGE ID       CREATED         SIZE
  17. howie/ubuntu/1   latest    8efead00202f   7 seconds ago   170MB
  18. ubuntu           latest    3f4714ee068a   2 days ago      77.8MB