昨晚使用dockerfile生成一个镜像，中途断网了，导致p_w_picpaths的REPOSITORY出现<none>

他的名字和tag都是为none

错误提示：

Failed to remove p_w_picpath (bceaae03d0ea): Error response from daemon: conflict: unable to delete bceaae03d0ea (must be forced) - p_w_picpath is being used by stopped container 31142aabc63c

首先我查看镜像

再查看容器，包括运行后退出的。

#引起上面的原因是docker官方要求，docker rmi p_w_picpath_id 只能删除未被使用的p_w_picpath。

由上面这段话，我推断到有容器在使用这个镜像，所以没法删除。

排除方法：1、删除和bceaae03d0ea镜像有关联的容器  2、再重新删除镜像

查看镜像
[root@salt-master ~]# docker p_w_picpaths
REPOSITORY              TAG                 IMAGE ID            CREATED             SIZE
<none>                  <none>              bceaae03d0ea        15 hours ago        172 MB
516249940/centos6-ssh   v1                  f6bb69ea7020        19 hours ago        556.4 MB
centos6-ssh             latest              f6bb69ea7020        19 hours ago        556.4 MB
docker.io/centos        centos6             8315978ceaaa        4 weeks ago         194.6 MB
docker.io/ubuntu        12.10               3e314f95dcac        2 years ago         172 MB
查看所有容器
[root@salt-master ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS                      PORTS                   NAMES
31142aabc63c        bceaae03d0ea        "/bin/sh -c 'apt-get "   15 hours ago        Exited (100) 15 hours ago                           drunk_borg
f8aa111d0066        centos6-ssh         "/usr/sbin/sshd -D"      18 hours ago        Up 18 hours                 0.0.0.0:32768->22/tcp   my-first-docker
[root@salt-master ~]# docker ps -l
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS                      PORTS               NAMES
31142aabc63c        bceaae03d0ea        "/bin/sh -c 'apt-get "   15 hours ago        Exited (100) 15 hours ago                       drunk_borg
[root@salt-master ~]#

[root@salt-master ~]# docker ps -a |grep bceaae03d0ea
31142aabc63c        bceaae03d0ea        "/bin/sh -c 'apt-get "   15 hours ago        Exited (100) 15 hours ago                           drunk_borg

[root@salt-master ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS                      PORTS                   NAMES
31142aabc63c        bceaae03d0ea        "/bin/sh -c 'apt-get "   15 hours ago        Exited (100) 15 hours ago                           drunk_borg
f8aa111d0066        centos6-ssh         "/usr/sbin/sshd -D"      18 hours ago        Up 18 hours                 0.0.0.0:32768->22/tcp   my-first-docker
删除已经退出运行的容器
[root@salt-master ~]# docker ps -a | grep "Exited" | awk '{print $1 }'|xargs docker rm
31142aabc63c
[root@salt-master ~]#
[root@salt-master ~]#
[root@salt-master ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND               CREATED             STATUS              PORTS                   NAMES
f8aa111d0066        centos6-ssh         "/usr/sbin/sshd -D"   18 hours ago        Up 18 hours         0.0.0.0:32768->22/tcp   my-first-docker

删除none镜像
[root@salt-master ~]# docker p_w_picpaths |grep none
<none>                  <none>              bceaae03d0ea        15 hours ago        172 MB
[root@salt-master ~]# docker p_w_picpaths |grep none |awk '{print $3}'
bceaae03d0ea
[root@salt-master ~]# docker p_w_picpaths |grep none |awk '{print $3}'|xargs docker rmi
Deleted: sha256:bceaae03d0ea6312608c6a9f310bcaa0b4363792fba6ee4875e1d2b9c7c1fbb1
[root@salt-master ~]# docker p_w_picpaths
REPOSITORY              TAG                 IMAGE ID            CREATED             SIZE
516249940/centos6-ssh   v1                  f6bb69ea7020        19 hours ago        556.4 MB
centos6-ssh             latest              f6bb69ea7020        19 hours ago        556.4 MB
docker.io/centos        centos6             8315978ceaaa        4 weeks ago         194.6 MB
docker.io/ubuntu        12.10               3e314f95dcac        2 years ago         172 MB
[root@salt-master ~]#