Docker 安装

yum remove docker \
            docker-client \
            docker-client-latest \
            docker-common \
            docker-latest \
            docker-latest-logrotate \
            docker-logrotate \
            docker-engine

yum install -y yum-utils
yum-config-manager \
    --add-repo \
    https://download.docker.com/linux/centos/docker-ce.repo

yum install docker-ce docker-ce-cli containerd.io

systemctl start docker && systemctl enable docker

curl -fsSL https://get.docker.com -o get-docker.sh
sudo sh get-docker.sh

# 以Ubuntu为例
# Step 1: 移除之前docker版本并更新更新 apt 包索引
sudo apt-get remove docker docker-engine docker.io
sudo apt-get update

# Step 2: 安装 apt 依赖包，用于通过HTTPS来获取仓库
sudo apt-get install apt-transport-https ca-certificates curl software-properties-common

# Step 3: 添加 Docker 的官方 GPG 密钥
curl -fsSL https://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | sudo apt-key add -

# Step 4: 设置docker稳定版仓库，这里使用了阿里云仓库
sudo add-apt-repository "deb [arch=amd64] https://mirrors.aliyun.com/docker-ce/linux/ubuntu $(lsb_release -cs) stable"
sudo apt-get update

# Step 5: 安装免费的docker Community版本docker-ce
sudo apt-get -y install docker-ce
# sudo apt-get install -y docker-ce=<VERSION> #该命令可以选择docker-ce版本

# Step 6: 查看docker版本及运行状态
sudo docker -v
sudo systemctl status docker

# Step 7：本步非必需。使用阿里云设置Docker镜像加速，注意下面链接请使用阿里云给自己的URL
sudo mkdir -p /etc/docker 
sudo tee /etc/docker/daemon.json <<-'EOF' 
{  "registry-mirrors": ["https://ua3456xxx.mirror.aliyuncs.com"] } 
EOF 
sudo systemctl daemon-reload 
sudo systemctl restart docker