What should I do if docker cannot delete the container?-Docker-php.cn

What should I do if docker cannot delete the container?

Problem description:

The docker directory cannot be deleted by executing the delete command:

# ll /var/lib/docker/containers | grep caf8ef20f3c1 # cd /var/lib/docker/containers # rm -rf caf8ef20f3c1c78f03a5844ee23abc1d7e44246f242292040f1ef288899d0cb8

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The error is reported as follows:

rm: 无法删除"/var/lib/docker/containers/caf8ef20f3c1c78f03a5844ee23abc1d7e44246f242292040f1ef288899d0cb8/secrets": 设备或资源忙 无法删除"/var/lib/docker/containers/caf8ef20f3c1c78f03a5844ee23abc1d7e44246f242292040f1ef288899d0cb8/shm": 设备或资源忙

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From the above error report, we can see that the "secrets" and "shm" shared mounts cannot be deleted.

(Recommended tutorial:docker tutorial)

Solution:

First find the mounting location, then cancel the mounting, and then delete:

# cat /proc/mounts |grep "docker" |grep "caf8ef20f3c1"

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Unmount

# umount /data/sys/var/docker/containers/caf8ef20f3c1c78f03a5844ee23abc1d7e44246f242292040f1ef288899d0cb8/secrets # umount /data/sys/var/docker/containers/caf8ef20f3c1c78f03a5844ee23abc1d7e44246f242292040f1ef288899d0cb8/shm

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View again:

# cat /proc/mounts |grep "docker" |grep "caf8ef20f3c1" //已经没有啦

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Now execute the deletion of the docker directory:

# cd /var/lib/docker/containers # rm -rf caf8ef20f3c1c78f03a5844ee23abc1d7e44246f242292040f1ef288899d0cb8

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Delete container service

Now we use rm or kill to delete the container service:

# docker rm -f caf8ef20f3c1c 或 # docker kill --signal=SIGINT caf8ef20f3c1

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If hang occurs after running the above command, please restart the docker service:

# systemctl restart docker

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