安裝docker和docker-compose

1.解除安裝舊版本Docker

sudo yum remove docker docker-common docker-selinux docker-engine

2.執行以下指令安裝依賴包

sudo yum install -y yum-utils device-mapper-persistent-data lvm2

3.鑒于國内網絡問題，強烈建議使用國内源執行下面的指令添加 yum 軟體源

sudo yum-config-manager --add-repo

http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

4.安裝Docker CE

sudo yum -y install docker-ce

5.設定開機啟動 Docker CE

sudo systemctl enable docker

sudo systemctl start docker

6.鑒于國内網絡問題，後續拉取 Docker 鏡像十分緩慢，強烈建議安裝 Docker 之後配置 國内鏡像加速

sudo vi /etc/docker/daemon.json

{ "registry-mirrors": ["https://registry.docker-cn.com"]

}

7.重新開機生效

sudo systemctl daemon-reload

sudo systemctl restart docker

8.安裝docker-compose

sudo curl -L "https://github.com/docker/compose/releases/download/1.23.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

sudo chmod +x /usr/local/bin/docker-compose

docker-compose --version