首先,要了解为什么会出现这个none?
一般在制作Docker镜像时已经存在的的REPOSITORY【仓库名】和TAG名,然而还添加了一个一样的仓库名并未以TAG识别来分开所致。
可能说得不清楚,看实例:
[root@Docker centos]# docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
centos6.5 v2 819f53017d76 55 minutes ago 254.8 MB
centos6.5 v1 af63c745e933 57 minutes ago 314.9 MB
centos6.5 latest dbb23486dd09 About an hour ago 370.9 MB
centos latest 60e65a8e4030 2 weeks ago 196.6 MB
centos centos7.1.1503 fab4b1df8eb1 3 months ago 212.1 MB
注意:上面已经存在centos6.5 v2的镜像,我接下来再利用添加一个一样的仓库名为centos6.5 TAG同样为v2就会出现如下情况:
[root@Docker data]# cd centos && tar -c .|docker import - centos6.5:v2
434c6fa14315f5b2c1a977eafb30f1b6f018a890e0ea59d1bfe7a700d1719b32
查看本机镜像列表
[root@Docker centos]# docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
centos6.5 v2 434c6fa14315 9 seconds ago 254.8 MB
<none> <none> 819f53017d76 56 minutes ago 254.8 MB
centos6.5 v1 af63c745e933 58 minutes ago 314.9 MB
centos6.5 latest dbb23486dd09 About an hour ago 370.9 MB
centos latest 60e65a8e4030 2 weeks ago 196.6 MB
centos centos7.1.1503 fab4b1df8eb1 3 months ago 212.1 MB
原来的centos6.5 v2的镜像已经变成了none,我们通过后面的IMAGE ID就可以识别了。
使用是不影响的,但是不太好识别。如何修改呢?
语法:docker tag [IMAGE ID] [REPOSITORY名]:[TAG标识]
[root@Docker centos]# docker tag 819f53017d76 centos65:6.5
[root@Docker centos]# docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
centos6.5 v2 434c6fa14315 8 minutes ago 254.8 MB
centos65 6.5 819f53017d76 About an hour ago 254.8 MB
centos6.5 v1 af63c745e933 About an hour ago 314.9 MB
centos6.5 latest dbb23486dd09 About an hour ago 370.9 MB
centos latest 60e65a8e4030 2 weeks ago 196.6 MB
centos centos7.1.1503 fab4b1df8eb1 3 months ago 212.1 MB
这样就修改过来了。