CentOs7安装docker教程

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

# 安装成功后，执行命令，配置Docker的yum源

# 在Centos7.0执行报错 Could not fetch/save ...
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

# 上面报错执行下面这个
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/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、配置阿里云镜像加速

mkdir -p /etc/docker
tee /etc/docker/daemon.json <<-'EOF' 
{ 
  "registry-mirrors": ["https://fdzbft1e.mirror.aliyuncs.com"]
} 
EOF 
systemctl daemon-reload 
systemctl restart docker