参考教程：https://docs.docker.com/engine/reference/commandline/rmi/
环境
- virtual box 6.1
- centos 7.8
- docker 19.03
命令格式
docker rmi [OPTIONS] IMAGE [IMAGE...]
使用 rm 命令可以删除本地镜像。如果镜像有多个标签，则只会去掉标签，不会真正的删除。如果只有一个标签，那么标签和镜像都会被删除。
命令选项
| 名称 | 默认值 | 描述 |
|---|---|---|
--force , -f |
强制删除镜像 | |
--no-prune |
不删除没有标签的镜像 |
示例
删除多个标签的镜像
[root@master ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx latest 4bb46517cac3 2 weeks ago 133MB
redis latest 1319b1eaa0b7 4 weeks ago 104MB
busybox 1.0.0 018c9d7b792b 5 weeks ago 1.22MB
busybox 1.0.1 018c9d7b792b 5 weeks ago 1.22MB
busybox 1.0.2 018c9d7b792b 5 weeks ago 1.22MB
busybox 1.0.3 018c9d7b792b 5 weeks ago 1.22MB
busybox latest 018c9d7b792b 5 weeks ago 1.22MB
[root@master ~]# docker 018c9d7b792b
docker: '018c9d7b792b' is not a docker command.
See 'docker --help'
[root@master ~]# docker rmi 018c9d7b792b
Error response from daemon: conflict: unable to delete 018c9d7b792b (must be forced) - image is referenced in multiple repositories
[root@master ~]# docker rmi busybox:1.0.3
Untagged: busybox:1.0.3
[root@master ~]#
删除多个镜像
[root@master ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx latest 4bb46517cac3 2 weeks ago 133MB
redis latest 1319b1eaa0b7 4 weeks ago 104MB
busybox 1.0.0 018c9d7b792b 5 weeks ago 1.22MB
busybox 1.0.1 018c9d7b792b 5 weeks ago 1.22MB
busybox 1.0.2 018c9d7b792b 5 weeks ago 1.22MB
busybox latest 018c9d7b792b 5 weeks ago 1.22MB
[root@master ~]# docker rmi 018c9d7b792b -f
Untagged: busybox:1.0.0
Untagged: busybox:1.0.1
Untagged: busybox:1.0.2
Untagged: busybox:latest
Untagged: busybox@sha256:4f47c01fa91355af2865ac10fef5bf6ec9c7f42ad2321377c21e844427972977
Deleted: sha256:018c9d7b792b4be80095d957533667279843acf9a46c973067c8d1dff31ea8b4
Deleted: sha256:514c3a3e64d4ebf15f482c9e8909d130bcd53bcc452f0225b0a04744de7b8c43
[root@master ~]#
总结
介绍了 rmi 命令的使用，可以删除本地的镜像。