CentOS7的docker下载下来启动失败问题（Job for docker.service failed because the control process exited with）

问题

1. 执行：systemctl start docker

2. 会出现的错误：Job for docker.service failed because the control process exited with error code. See "systemctl status docker.service" and "journalctl -xe" for details.

   

3. ps如果不解决会出现

   Cannot connect to the Docker daemonatunix:///var/run/docker.sock.Is the docker daemon running?

   

解决方法

1. vim /etc/sysconfig/docker-storage

   将配置文件修改为：DOCKER_STORAGE_OPTIONS="--selinux-enabled --log-driver=journald --signature-verification=false"

2. vim /etc/docker/daemon.json

   写入指定参数：{ "storage-driver": "devicemapper" }

3. 然后重启docker服务：systemctl restart docker

   

注意

这里第一步是修改，第二步是写入。

附

docker自启：systemctl enable docker