问题描述
我是在Centos7里用 yum install docker安装的docker-1.8.2-7.el7，刚安装好时，是可以使用的，我还用 docker run -i -t ubuntu /bin/bash 下载了一个镜像下来，并且运行成功了。后来重启了一次系统，就启动不了docker了，情况如下，请问怎么办？
[root@localhost /]# systemctl status docker.service -ldocker.service - Docker Application Container Engine Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled) Active: failed (Result: timeout) since Sat 2015-11-28 00:24:15 PST; 10min ago Docs: http://docs.docker.com Main PID: 13326 CGroup: /system.slice/docker.serviceNov 28 00:23:15 localhost.localdomain docker[13326]: time='2015-11-28T00:23:15.965572881-08:00' level=info msg='Listening for HTTP on unix (/var/run/docker.sock)'Nov 28 00:23:15 localhost.localdomain docker[13326]: time='2015-11-28T00:23:15.969942476-08:00' level=error msg='WARNING: No --storage-opt dm.thinpooldev specified, using loopback; this configuration is strongly discouraged for production use'Nov 28 00:23:16 localhost.localdomain docker[13326]: time='2015-11-28T00:23:16.114079015-08:00' level=info msg='[graphdriver] using prior storage driver 'devicemapper''Nov 28 00:23:16 localhost.localdomain docker[13326]: time='2015-11-28T00:23:16.120977430-08:00' level=info msg='Option DefaultDriver: bridge'Nov 28 00:23:16 localhost.localdomain docker[13326]: time='2015-11-28T00:23:16.121023378-08:00' level=info msg='Option DefaultNetwork: bridge'Nov 28 00:23:16 localhost.localdomain docker[13326]: time='2015-11-28T00:23:16.134260533-08:00' level=warning msg='Running modprobe bridge nf_nat br_netfilter failed with message: modprobe: WARNING: Module br_netfilter not found.n, error: exit status 1'Nov 28 00:24:15 localhost.localdomain systemd[1]: docker.service operation timed out. Terminating.Nov 28 00:24:15 localhost.localdomain systemd[1]: Failed to start Docker Application Container Engine.Nov 28 00:24:15 localhost.localdomain systemd[1]: Unit docker.service entered failed state.
用docker -d命令的输出内容是：
[root@localhost /]# docker -dWarning: ’-d’ is deprecated, it will be removed soon. See usage.WARN[0000] please use ’docker daemon’ instead. ERRO[0000] WARNING: No --storage-opt dm.thinpooldev specified, using loopback; this configuration is strongly discouraged for production use INFO[0000] Listening for HTTP on unix (/var/run/docker.sock) INFO[0000] [graphdriver] using prior storage driver 'devicemapper' INFO[0000] Option DefaultDriver: bridge INFO[0000] Option DefaultNetwork: bridgeWARN[0000] Running modprobe bridge nf_nat br_netfilter failed with message: modprobe: WARNING: Module br_netfilter not found., error: exit status 1 INFO[0000] Firewalld running: true INFO[0000] Loading containers: start. ..INFO[0000] Loading containers: done. INFO[0000] Daemon has completed initialization INFO[0000] Docker daemon commit=bb472f0/1.8.2 execdriver=native-0.2 graphdriver=devicemapper version=1.8.2
问题解答
回答1：已经搞定，关闭SELinux就可以了
编辑/etc/selinux/config，找到SELINUX 行修改成为：SELINUX=disabled:
SELINUX=disabled
重启系统。
