Centos docker的安装

一、docker的安装

1.安装依赖

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

2.添加仓库

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

3.安装

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

4.报错解决

如果报错：Problem: package docker-ce-3:19.03.4-3.el7.x86_64 requires containerd.io >= 1.2.2-3 那就先装新版的 containerd.io

dnf install https://download.docker.com/linux/centos/8/x86_64/stable/Packages/containerd.io-1.2.6-3.3.el7.x86_64.rpm

再装剩下两个

yum install -y docker-ce docker-ce-cli

5.启动docker

sudo systemctl start docker

6.查看版本

docker --version

7.开机自启

systemctl enable docker

二、docker配置阿里云源

mkdir -p /etc/docker
tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://w4l78box.mirror.aliyuncs.com"]
}
EOF

systemctl daemon-reload
systemctl restart docker