容器 4-Docker命令之docker tag

1.docker tag介绍

docker tag命令是用来给docker镜像打标签

2.docker tag用法

docker tag SOURCE_IMAGE[:TAG] TARGET_IMAGE[:TAG]

[root@centos79 ~]# docker tag --help

Usage: docker tag SOURCE_IMAGE[:TAG] TARGET_IMAGE[:TAG]

Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE

Aliases:

docker image tag, docker tag

[root@centos79 ~]#

3.实例

3.1.docker镜像打标签

命令：

docker tag nginx:latest nginx:1.0

[root@centos79 ~]# docker images | grep nginx

nginx latest 605c77e624dd 23 months ago 141MB

[root@centos79 ~]# docker tag nginx:latest nginx:1.0

[root@centos79 ~]# docker images | grep nginx

nginx 1.0 605c77e624dd 23 months ago 141MB

nginx latest 605c77e624dd 23 months ago 141MB

[root@centos79 ~]#

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