Docker安装

1. 卸载旧版docker

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

2. 配置Docker的yum库

安装yum工具

yum install -y yum-utils

配置Docker的yum源

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

3. 安装Docker

yum install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

4. 启动和校验

# 启动Docker
systemctl start docker

# 停止Docker
systemctl stop docker

# 重启
systemctl restart docker

# 设置开机自启
systemctl enable docker

# 执行docker ps命令，如果不报错，说明安装启动成功
docker ps

5. 配置镜像加速

5.1 注册阿里云账号

https://www.aliyun.com/

5.2 开通镜像服务

5.3 配置镜像加速

sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://加速器地址"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker