1、安装和启动docker
yum update -y
yum install -y yum-utils
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
yum -y install docker-ce
systemctl start docker
2、设置镜像
vi /etc/docker/daemon.json
{
"registry-mirrors": ["https://aj2rgad5.mirror.aliyuncs.com"]
}
3、开放管理端口映射
vi /lib/systemd/system/docker.service
将第11行的ExecStart=/usr/bin/dockerd,替换为:
ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock -H tcp://0.0.0.0:7654
2375是管理端口,7654是备用端口
在~/.bashrc中写入docker管理端口
export DOCKER_HOST=tcp://0.0.0.0:2375
source ~/.bashrc
4、重启docker
systemctl daemon-reload && service docker restart
5、测试docker是否正常安装和运行
docker run hello-world
Hello from Docker!
This message shows that your installation appears to be working correctly.
原文地址:https://www.cnblogs.com/sunliyuan/p/11779743.html