教程之centos(7)安装docker

Ⅰ、centos7切换源

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
yum clean all && yum makecache

Ⅱ、centos安装docker

一、卸载旧版本

较旧的 Docker 版本称为 docker 或 docker-engine 。如果已安装这些程序，请卸载它们以及相关的依赖项。

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

二、安装所需的软件包

yum-utils 提供了 yum-config-manager ，并且 device mapper 存储驱动程序需要 device-mapper-persistent-data 和 lvm2。

$ sudo yum install -y yum-utils

三、设置稳定或可访问的仓库

sudo yum-config-manager \
    --add-repo \
    https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

sed -i 's/download.docker.com/mirrors.aliyun.com\/docker-ce/g' /etc/yum.repos.d/docker-ce.repo
yum makecache

四、安装 Docker Engine-Community

sudo yum install docker-ce docker-ce-cli containerd.io docker-compose-plugin

五、启动docker及设置开机启动

sudo systemctl start docker
sudo systemctl enable docker

六、设置docker仓库代理

sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
    "registry-mirrors": [
    	"https://docker.1panel.live/",
        "https://hub.uuuadc.top",
        "https://docker.anyhub.us.kg",
        "https://dockerhub.jobcher.com",
        "https://dockerhub.icu",
        "https://docker.ckyl.me",
        "https://docker.awsl9527.cn"
    ]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

七、拉取docker 镜像

docker pull redis:6.2.12

八、删除镜像

docker image prune -a --force