Docker build 后标签名为none

如图:

[root@localhost nginx]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
89e246af3571 About a minute ago 880 MB
docker.io/ubuntu latest 7698f282e524 3 months ago 69.9 MB
docker.io/centos latest 9f38484d220f 5 months ago 202 MB
docker.io/registry latest f32a97de94e1 5 months ago 25.8 MB

解决:

docker tag 89e246af3571 rojer:nginxV0.0.1

docker tag 语法:

[root@localhost nginx]# docker tag --help
Usage: docker tag SOURCE_IMAGE[:TAG] TARGET_IMAGE[:TAG]
Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE
Options:
--help Print usage