Docker.service启动错误

最近，我用Dockerfile重build了一个nginx容器。 但它表示来自守护进程的错误响应：无法重新启动容器aa_php：无法链接到非运行容器：/ img AS / nginx / php。 所以我尝试systemctl重新启动docker.service。 它失败！

sh$ uname -a Linux izwz94xswj2tx8086sbgnrz 3.10.0-693.5.2.el7.x86_64 #1 SMP Fri Oct 20 20:32:50 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux sh$ docker version Client: Version: 17.10.0-ce API version: 1.33 Go version: go1.8.3 Git commit: f4ffd25 Built: Tue Oct 17 19:04:05 2017 OS/Arch: linux/amd64 Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? sh$ docker info Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? -- Unit docker.service has begun starting up. Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23.396022007+08:00" level=info msg="libcontainerd: starte Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="starting containerd" module=con Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="changing OOM score to -500" mod Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="loading plugin "io.containerd.c Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="loading plugin "io.containerd.s Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=warning msg="failed to load plugin io.con Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="loading plugin "io.containerd.s Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="loading plugin "io.containerd.m Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=warning msg="could not use snapshotter bt Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="loading plugin "io.containerd.d Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="loading plugin "io.containerd.g Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="loading plugin "io.containerd.g Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="loading plugin "io.containerd.g Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="loading plugin "io.containerd.g Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="loading plugin "io.containerd.g Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="loading plugin "io.containerd.g Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="loading plugin "io.containerd.g Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="loading plugin "io.containerd.g Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="loading plugin "io.containerd.m Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="loading plugin "io.containerd.r Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="loading plugin "io.containerd.g Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="loading plugin "io.containerd.g Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="loading plugin "io.containerd.g Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg=serving... address="/var/run/doc Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg=serving... address="/var/run/doc Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: time="2017-12-02T12:30:23+08:00" level=info msg="containerd successfully booted Dec 02 12:30:23 VM_0_15_centos dockerd[11830]: Error starting daemon: error initializing graphdriver: /var/lib/docker contains Dec 02 12:30:23 VM_0_15_centos systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE Dec 02 12:30:23 VM_0_15_centos systemd[1]: Failed to start Docker Application Container Engine. -- Subject: Unit docker.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit docker.service has failed. -- -- The result is failed. Dec 02 12:30:23 VM_0_15_centos systemd[1]: Unit docker.service entered failed state. Dec 02 12:30:23 VM_0_15_centos systemd[1]: docker.service failed. Dec 02 12:30:23 VM_0_15_centos systemd[1]: docker.service holdoff time over, scheduling restart. Dec 02 12:30:23 VM_0_15_centos systemd[1]: start request repeated too quickly for docker.service Dec 02 12:30:23 VM_0_15_centos systemd[1]: Failed to start Docker Application Container Engine. -- Subject: Unit docker.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit docker.service has failed. -- -- The result is failed. Dec 02 12:30:23 VM_0_15_centos systemd[1]: Unit docker.service entered failed state. Dec 02 12:30:23 VM_0_15_centos systemd[1]: docker.service failed. 

在使用systemctl restart docker.service之后，我无法systemctl restart docker.service 。 在执行此操作之前，Docker服务在我的服务器上运行良好。

我试图在/etc/docker/daemon.json添加{ "storage-driver": "devicemapper" } 。 docker服务可以启动。 但docker上的图像和容器都丢失了。

 sh$ df -h [docker]# df -h Filesystem Size Used Avail Use% Mounted on /dev/vda1 50G 18G 30G 38% / devtmpfs 1.9G 0 1.9G 0% /dev tmpfs 1.9G 24K 1.9G 1% /dev/shm tmpfs 1.9G 356K 1.9G 1% /run tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup tmpfs 380M 0 380M 0% /run/user/0 

tmpfs 380M 0 380M 0％/ run / user / 1000

另一方面，当我从/etc/docker/daemon.json删除{ "storage-driver": "devicemapper" } 。 然后我做mv /var/lib/docker /var/lib/docker_cp 。 docker服务也可以启动。 但所有的docker图像和容器都丢失了。

那么如何用存在的图像和容器来启动Docker服务呢？

 sh$ ls /var/lib/docker drwx--x--x 15 root root 4096 Dec 2 12:53 . drwxr-xr-x. 37 root root 4096 Dec 2 12:50 .. drwx------ 2 root root 4096 Nov 13 00:50 builder drwx--x--x 3 root root 4096 Dec 2 12:12 containerd drwx------ 8 root root 4096 Dec 2 11:42 containers drwx------ 4 root root 4096 Dec 2 12:26 devicemapper -rw-r--r-- 1 root root 187634 Dec 2 12:31 dockerd[11830]: time="2017-12-02T12:30:23.396022007+08:00" level=info msg="libcontainerd: starte drwx------ 4 root root 4096 Dec 2 12:24 image drwxr-x--- 3 root root 4096 Nov 13 00:50 network drwx------ 133 root root 32768 Dec 2 12:53 overlay drwx------ 4 root root 4096 Dec 2 12:53 plugins drwx------ 2 root root 4096 Dec 2 12:53 runtimes drwx------ 2 root root 4096 Nov 13 00:50 swarm drwx------ 2 root root 4096 Dec 2 12:53 tmp drwx------ 2 root root 4096 Nov 13 00:50 trust drwx------ 2 root root 4096 Nov 13 00:50 volumes sh$ journalctl -u docker | tail -n 200 ew containerd process, pid: 26277" Dec 02 14:19:06 izwz94xswj2tx8086sbgnrz dockerd[26271]: time="2017-12-02T14:19:06.223706271+08:00" level=info msg="[graphdriver] us ing prior storage driver: overlay" Dec 02 14:19:06 izwz94xswj2tx8086sbgnrz dockerd[26271]: Error starting daemon: layer does not exist Dec 02 14:19:06 izwz94xswj2tx8086sbgnrz systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE Dec 02 14:19:06 izwz94xswj2tx8086sbgnrz systemd[1]: Failed to start Docker Application Container Engine. Dec 02 14:19:06 izwz94xswj2tx8086sbgnrz systemd[1]: Unit docker.service entered failed state. Dec 02 14:19:06 izwz94xswj2tx8086sbgnrz systemd[1]: docker.service failed. Dec 02 14:19:06 izwz94xswj2tx8086sbgnrz systemd[1]: docker.service holdoff time over, scheduling restart. Dec 02 14:19:06 izwz94xswj2tx8086sbgnrz systemd[1]: Starting Docker Application Container Engine... Dec 02 14:19:06 izwz94xswj2tx8086sbgnrz dockerd[26289]: time="2017-12-02T14:19:06.627836666+08:00" level=info msg="libcontainerd: n ew containerd process, pid: 26295" Dec 02 14:19:07 izwz94xswj2tx8086sbgnrz dockerd[26289]: time="2017-12-02T14:19:07.634725753+08:00" level=info msg="[graphdriver] us ing prior storage driver: overlay" Dec 02 14:19:07 izwz94xswj2tx8086sbgnrz dockerd[26289]: Error starting daemon: layer does not exist Dec 02 14:19:07 izwz94xswj2tx8086sbgnrz systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE Dec 02 14:19:07 izwz94xswj2tx8086sbgnrz systemd[1]: Failed to start Docker Application Container Engine. Dec 02 14:19:07 izwz94xswj2tx8086sbgnrz systemd[1]: Unit docker.service entered failed state. Dec 02 14:19:07 izwz94xswj2tx8086sbgnrz systemd[1]: docker.service failed. Dec 02 14:19:07 izwz94xswj2tx8086sbgnrz systemd[1]: docker.service holdoff time over, scheduling restart. Dec 02 14:19:07 izwz94xswj2tx8086sbgnrz systemd[1]: Starting Docker Application Container Engine... Dec 02 14:19:07 izwz94xswj2tx8086sbgnrz dockerd[26307]: time="2017-12-02T14:19:07.877330414+08:00" level=info msg="libcontainerd: n ew containerd process, pid: 26313" Dec 02 14:19:08 izwz94xswj2tx8086sbgnrz dockerd[26307]: time="2017-12-02T14:19:08.884387445+08:00" level=info msg="[graphdriver] us ing prior storage driver: overlay" Dec 02 14:19:08 izwz94xswj2tx8086sbgnrz dockerd[26307]: Error starting daemon: layer does not exist Dec 02 14:19:08 izwz94xswj2tx8086sbgnrz systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE Dec 02 14:19:08 izwz94xswj2tx8086sbgnrz systemd[1]: Failed to start Docker Application Container Engine. Dec 02 14:19:08 izwz94xswj2tx8086sbgnrz systemd[1]: Unit docker.service entered failed state. Dec 02 14:19:08 izwz94xswj2tx8086sbgnrz systemd[1]: docker.service failed. Dec 02 14:19:09 izwz94xswj2tx8086sbgnrz systemd[1]: docker.service holdoff time over, scheduling restart. Dec 02 14:19:09 izwz94xswj2tx8086sbgnrz systemd[1]: start request repeated too quickly for docker.service Dec 02 14:19:09 izwz94xswj2tx8086sbgnrz systemd[1]: Failed to start Docker Application Container Engine. Dec 02 14:19:09 izwz94xswj2tx8086sbgnrz systemd[1]: Unit docker.service entered failed state. Dec 02 14:19:09 izwz94xswj2tx8086sbgnrz systemd[1]: docker.service failed. Dec 02 14:22:51 izwz94xswj2tx8086sbgnrz systemd[1]: Starting Docker Application Container Engine... Dec 02 14:22:51 izwz94xswj2tx8086sbgnrz dockerd[26362]: time="2017-12-02T14:22:51.286002990+08:00" level=info msg="libcontainerd: n ew containerd process, pid: 26368" Dec 02 14:22:52 izwz94xswj2tx8086sbgnrz dockerd[26362]: time="2017-12-02T14:22:52.292699326+08:00" level=info msg="[graphdriver] us ing prior storage driver: overlay" Dec 02 14:22:52 izwz94xswj2tx8086sbgnrz dockerd[26362]: Error starting daemon: layer does not exist Dec 02 14:22:52 izwz94xswj2tx8086sbgnrz systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE Dec 02 14:22:52 izwz94xswj2tx8086sbgnrz systemd[1]: Failed to start Docker Application Container Engine. Dec 02 14:22:52 izwz94xswj2tx8086sbgnrz systemd[1]: Unit docker.service entered failed state. Dec 02 14:22:52 izwz94xswj2tx8086sbgnrz systemd[1]: docker.service failed. Dec 02 14:22:52 izwz94xswj2tx8086sbgnrz systemd[1]: docker.service holdoff time over, scheduling restart. Dec 02 14:22:52 izwz94xswj2tx8086sbgnrz systemd[1]: Starting Docker Application Container Engine... Dec 02 14:22:52 izwz94xswj2tx8086sbgnrz dockerd[26379]: time="2017-12-02T14:22:52.625319452+08:00" level=info msg="libcontainerd: n ew containerd process, pid: 26385" Dec 02 14:22:53 izwz94xswj2tx8086sbgnrz dockerd[26379]: time="2017-12-02T14:22:53.634927699+08:00" level=info msg="[graphdriver] us ing prior storage driver: overlay" Dec 02 14:22:53 izwz94xswj2tx8086sbgnrz dockerd[26379]: Error starting daemon: layer does not exist Dec 02 14:22:53 izwz94xswj2tx8086sbgnrz systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE Dec 02 14:22:53 izwz94xswj2tx8086sbgnrz systemd[1]: Failed to start Docker Application Container Engine. Dec 02 14:22:53 izwz94xswj2tx8086sbgnrz systemd[1]: Unit docker.service entered failed state. Dec 02 14:22:53 izwz94xswj2tx8086sbgnrz systemd[1]: docker.service failed. Dec 02 14:22:53 izwz94xswj2tx8086sbgnrz systemd[1]: docker.service holdoff time over, scheduling restart. Dec 02 14:22:53 izwz94xswj2tx8086sbgnrz systemd[1]: Starting Docker Application Container Engine... Dec 02 14:22:53 izwz94xswj2tx8086sbgnrz dockerd[26397]: time="2017-12-02T14:22:53.877175810+08:00" level=info msg="libcontainerd: n ew containerd process, pid: 26403" Dec 02 14:22:54 izwz94xswj2tx8086sbgnrz dockerd[26397]: time="2017-12-02T14:22:54.884380750+08:00" level=info msg="[graphdriver] us ing prior storage driver: overlay" Dec 02 14:22:54 izwz94xswj2tx8086sbgnrz dockerd[26397]: Error starting daemon: layer does not exist Dec 02 14:22:54 izwz94xswj2tx8086sbgnrz systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE Dec 02 14:22:54 izwz94xswj2tx8086sbgnrz systemd[1]: Failed to start Docker Application Container Engine. Dec 02 14:22:54 izwz94xswj2tx8086sbgnrz systemd[1]: Unit docker.service entered failed state. Dec 02 14:22:54 izwz94xswj2tx8086sbgnrz systemd[1]: docker.service failed. Dec 02 14:22:55 izwz94xswj2tx8086sbgnrz systemd[1]: docker.service holdoff time over, scheduling restart. Dec 02 14:22:55 izwz94xswj2tx8086sbgnrz systemd[1]: start request repeated too quickly for docker.service Dec 02 14:22:55 izwz94xswj2tx8086sbgnrz systemd[1]: Failed to start Docker Application Container Engine. Dec 02 14:22:55 izwz94xswj2tx8086sbgnrz systemd[1]: Unit docker.service entered failed state. Dec 02 14:22:55 izwz94xswj2tx8086sbgnrz systemd[1]: docker.service failed.