【问题笔记】Docker安装问题：1、启动docker服务失败

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yum install docker

进入目录/etc/yum.repos.d/下面新建文件docker.repo，输入以下内容

[dockerrepo]
name=Docker Repository
baseurl=https://yum.dockerproject.org/repo/main/centos/7
enabled=1
gpgcheck=1
gpgkey=https://yum.dockerproject.org/gpg

yum install docker-engine

执行上面这个步骤，可能报错冲突的docker引擎，就直接pass这一步；

安装完成后执行systemctl start docker.service失败

Job for docker.service failed because the control process exited with error code. See "systemctl status docker.service" and "journalctl -xe" for details.

解决方法：

vi /etc/sysconfig/selinux    把selinux后面的改为disabled，重启一波机器，再重启docker就可以了

设置开机启动Docker Daemon进程
systemctl start docker.service
systemctl enable docker.service
systemctl grep docker查看docker进程的状态
systemctl disable firewalld
yum -y install iptables-services
systemctl enable iptables
systemctl start iptables

问题文档留着备用：https://www.cnblogs.com/276815076/p/4673607.html