02：Docker镜像管理

curl -sSL https://get.daocloud.io/daotools/set_mirror.sh | sh -s http://f1361db2.m.daocloud.io

[root@localhost overlay2]# cd /etc/docker/
[root@localhost docker]# ls
key.json
[root@localhost docker]# curl -sSL https://get.daocloud.io/daotools/set_mirror.sh | sh -s http://f1361db2.m.daocloud.io
docker version >= 1.12
{"registry-mirrors": ["http://f1361db2.m.daocloud.io"]}
Success.
You need to restart docker to take effect: sudo systemctl restart docker 
[root@localhost docker]# systemctl restart docker
[root@localhost docker]# cat /etc/docker/daemon.json 
{"registry-mirrors": ["http://f1361db2.m.daocloud.io"]}
[root@localhost docker]#

[root@localhost ~]# docker image --help

Usage:    docker image COMMAND

Manage images

Commands:
  build       Build an image from a Dockerfile
  history     Show the history of an image
  import      Import the contents from a tarball to create a filesystem image
  inspect     Display detailed information on one or more images
  load        Load an image from a tar archive or STDIN
  ls          List images
  prune       Remove unused images
  pull        Pull an image or a repository from a registry
  push        Push an image or a repository to a registry
  rm          Remove one or more images
  save        Save one or more images to a tar archive (streamed to STDOUT by default)
  tag         Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE

Run ‘docker image COMMAND --help‘ for more information on a command.
[root@localhost ~]#