安装docker

删除错误的 repo

sudo rm -f /etc/yum.repos.d/docker-ce.repo

使用官方 Docker repo

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

修改Docker的dnf仓库源

sudo sed -i 's#https://download.docker.com/linux/centos#http://mirrors.aliyun.com/docker-ce/linux/centos#g' /etc/yum.repos.d/docker-ce.repo

清理缓存并重新安装

sudo dnf clean all
sudo dnf makecache
sudo dnf install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

开机启动

sudo systemctl enable --now docker

配置 Docker 镜像加速器

sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": [
    "https://docker.m.daocloud.io",
    "https://mirror.ccs.tencentyun.com",
    "https://hub-mirror.c.163.com",
    "https://registry.docker-cn.com"
  ]
}
EOF

重启docker

sudo systemctl daemon-reexec
sudo systemctl restart docker