markdown aliyun ecs centos7.4码头安装

Posted 2021-05-06

# install
```
sudo yum install -y yum-utils device-mapper-persistent-data lvm2
sudo yum makecache fast
sudo yum install docker-ce
```

# 使用阿里云加速
加速地址 https://krzlewr1.mirror.aliyuncs.com

```
sudo cp -n /lib/systemd/system/docker.service /etc/systemd/system/docker.service
sudo sed -i "s|ExecStart=/usr/bin/dockerd|ExecStart=/usr/bin/dockerd --registry-mirror=https://krzlewr1.mirror.aliyuncs.com|g" /etc/systemd/system/docker.service
sudo systemctl daemon-reload
sudo service docker restart
```

# 安装之后免root登陆, 添加到docker用户组并重新登陆
```
sudo groupadd docker
sudo usermod -aG docker $USER
Log out and log back in so that your group membership is re-evaluated
```

# reference
- https://yeasy.gitbooks.io/docker_practice/install/centos.html 
- https://yq.aliyun.com/articles/29941    加速
- https://docs.docker.com/engine/installation/linux/linux-postinstall/