https://www.cnblogs.com/kevingrace/p/9599988.html docker容器删除 push 到仓库相关的操作
查看镜像
[root@docker-test1 ~]
# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
docker.io
/ubuntu
16.04 7aa3602ab41e 5 weeks ago 115 MB
创建一个名为myubuntu的容器
[root@docker-test1 ~]
# docker run -ti --name myubuntu -d docker.io/ubuntu
[root@docker-test1 ~]
# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
651a8541a47d docker.io
/ubuntu
"/bin/bash"
37 seconds ago Up 36 seconds myubuntu
docker commit :从容器创建一个新的镜像。
# docker commit [OPTIONS] CONTAINER [REPOSITORY[:TAG]]
-a :提交的镜像作者;
-c :使用Dockerfile指令来创建镜像;
-m :提交时的说明文字;
-p :在commit时,将容器暂停。
根据这个myubuntu容器提交镜像
[root@docker-test1 ~]
# docker commit -a "wangshibo" -m "this is test" 651a8541a47d myubuntu:v1
sha256:6ce4aedd12cda693d0bbb857cc443a56f9f569106e09ec61aa53563d0932ea4d
再次查看镜像,发现镜像myubuntu:v1已经提交到本地了
[root@docker-test1 ~]
# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
myubuntu v1 6ce4aedd12cd 59 seconds ago 84.1 MB
docker.io
/ubuntu
16.04 7aa3602ab41e 5 weeks ago 115 MB
在mybuntu:v1镜像推送到docker hub仓库中去
# docker push [OPTIONS] NAME[:TAG]
OPTIONS说明:
--disable-content-trust :忽略镜像的校验,默认开启
首先是登录docker hub (用户名:wangshibo 密码:*******)
[root@docker-test1 ~]
# docker login
Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID,
head
over to https:
//hub
.docker.com to create one.
Username (wangshibo): wangshibo
Password:
Login Succeeded
[root@docker-test1 ~]
# docker push wangshibo/myubuntu:v1
The push refers to a repository [docker.io
/wangshibo/myubuntu
]
An image does not exist locally with the tag: docker.io
/wangshibo/myubuntu
这里需要将ubuntu:v1镜像改名,在名称前加上自己的docker hub的Docker ID,即wangshibo
[root@docker-test1 ~]
# docker tag 6ce4aedd12cd wangshibo/myubuntu:v1
[root@docker-test1 ~]
# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
myubuntu v1 6ce4aedd12cd 6 minutes ago 84.1 MB
wangshibo
/myubuntu
v1 6ce4aedd12cd 6 minutes ago 84.1 MB
docker.io
/ubuntu
16.04 7aa3602ab41e 5 weeks ago 115 MB
再次进行推送(注意:下面的v1的tag标签可以不打,默认是latest)。推送操作时间稍微会有一点长,耐心等待~
[root@docker-test1 ~]
# docker push wangshibo/myubuntu:v1
The push refers to a repository [docker.io
/wangshibo/myubuntu
]
b5948ba9486d: Pushed
8d7ea83e3c62: Mounted from library
/ubuntu
6a061ee02432: Mounted from library
/ubuntu
f73b2816c52a: Mounted from library
/ubuntu
6267b420796f: Mounted from library
/ubuntu
a30b835850bf: Mounted from library
/ubuntu
v1: digest: sha256:e9cd9075d262848a307c92751e1a5890d883b814a31abd118161442461a1ca2d size: 1564
最后登录自己的Docker Hub,即https:
//hub
.docker.com/
登录后,在Repositories里面就可以看到自己在上面推送的镜像wangshibo
/myubuntu
:v1了,这是个对外的镜像,可以在网络上下载。
在Docker hub上可以看到这个镜像的下载命令(注意下载时跟上tag标签,如果是latest的默认tag可以不跟)
也可以直接在Docker hub上删除这个镜像(Repositories-镜像-Settings-delete)
比如在另一台服务器上下载这个镜像
[root@kevin-
test
~]
# docker pull wangshibo/myubuntu
Pulling repository wangshibo
/myubuntu
Repository not found
需要跟上tag标签
[root@kevin-
test
~]
# docker pull wangshibo/myubuntu:v1
v1: Pulling from wangshibo
/myubuntu
68e2a091ef24: Pull complete
8f9dd35f6299: Pull complete
a81a6171600b: Pull complete
a211a2bc7010: Pull complete
9e71a0b4f83a: Pull complete
0cf75bb335aa: Pull complete
c393a882769e: Pull complete
Digest: sha256:845fa3dcc9d0de1b9c701e1009918995da35a29012015f6c297a05edc489e018
Status: Downloaded newer image
for
wangshibo
/myubuntu
:v1
[root@kevin-
test
~]
# docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
wangshibo
/myubuntu
v1 c393a882769e 12 minutes ago 84.11 MB
在本机删除这个镜像
[root@docker-test1 ~]
# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
myubuntu v1 6ce4aedd12cd 15 minutes ago 84.1 MB
wangshibo
/myubuntu
v1 6ce4aedd12cd 15 minutes ago 84.1 MB
docker.io
/ubuntu
16.04 7aa3602ab41e 5 weeks ago 115 MB
注意上面有两个6ce4aedd12cd的镜像ID,此时直接使用这个镜像ID是删除不掉的
[root@docker-test1 ~]
# docker rmi 6ce4aedd12cd
Error response from daemon: conflict: unable to delete 6ce4aedd12cd (must be forced) - image is referenced
in
multiple repositories
应该先删除docker tag改名前的镜像,使用镜像名称删除。(一般在docker tag镜像改名后,最好删除改名前的镜像)
[root@docker-test1 ~]
# docker rmi myubuntu:v1
Untagged: myubuntu:v1
Untagged: wangshibo
/myubuntu
@sha256:e9cd9075d262848a307c92751e1a5890d883b814a31abd118161442461a1ca2d
[root@docker-test1 ~]
# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
wangshibo
/myubuntu
v1 6ce4aedd12cd 15 minutes ago 84.1 MB
docker.io
/ubuntu
16.04 7aa3602ab41e 5 weeks ago 115 MB
这个时候就可以删除镜像ID删除了
[root@docker-test1 ~]
# docker rmi 6ce4aedd12cd
Untagged: wangshibo
/myubuntu
:v1
Deleted: sha256:6ce4aedd12cda693d0bbb857cc443a56f9f569106e09ec61aa53563d0932ea4d
Deleted: sha256:0ddeb6a16badd042914c2e72b9ef0331550c1cdcc4bdc6650a90cd9f57f1501b
[root@docker-test1 ~]
# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
docker.io
/ubuntu
16.04 7aa3602ab41e 5 weeks ago 115 MB
=================================删除镜像失败一例分享==================================
[root@docker-test1 ~]
# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
[root@docker-test1 ~]
# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
打算删除掉docker的nginx镜像, 但是发现这个镜像就是删除不了,加了-f强制删除也不行,一直报Error: No such image的错误,
最后终于找到了办法直接删除文件!
[root@docker-test1 ~]
# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx latest 62f816a209e6 7 days ago 109MB
[root@docker-test1 ~]
# docker rmi nginx
Error: No such image: nginx
[root@docker-test1 ~]
# docker rmi 62f816a209e6
Error: No such image: 62f816a209e6
[root@docker-test1 ~]
# docker rmi 62f816a209e6 -f
Error: No such image: 62f816a209e6
如上,怎么都删除不掉nginx镜像!!!!!
处理办法:
[root@docker-test1 ~]
# systemctl stop docker
[root@docker-test1 ~]
# rm -rf /var/lib/docker
rm
: cannot remove ‘
/var/lib/docker/containers
’: Device or resource busy
删除不了的原因是: 在建立容器的时候做了相应目录的挂载,没有卸载,所以Device or resource busy
解决办法: 查找挂载的目录并卸载
[root@docker-test1 ~]
# cat /proc/mounts | grep "docker"
/dev/mapper/centos-root
/var/lib/docker/containers
xfs rw,relatime,attr2,inode64,noquota 0 0
proc
/run/docker/netns/default
proc rw,nosuid,nodev,noexec,relatime 0 0
proc
/run/docker/netns/a0626c54fd03
proc rw,nosuid,nodev,noexec,relatime 0 0
proc
/run/docker/netns/b18072de4224
proc rw,nosuid,nodev,noexec,relatime 0 0
proc
/run/docker/netns/b5298f643455
proc rw,nosuid,nodev,noexec,relatime 0 0
proc
/run/docker/netns/9f5e97637c98
proc rw,nosuid,nodev,noexec,relatime 0 0
[root@docker-test1 ~]
# umount /var/lib/docker/containers
[root@docker-test1 ~]
# rm -rf /var/lib/docker
[root@docker-test1 ~]
# systemctl start docker
再次查看就没有这个镜像了
[root@docker-test1 ~]
# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE