CentOS8安装Docker

CentOS8安装Docker步骤

curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun

问题: package docker-ce-3:19.03.14-3.el7.x86_64 requires containerd.io >= 1.2.2-3, but none of the providers can be installed

解析：
CentOS8安装Docker出现 package docker-ce-3:19.03.12-3.el7.x86_64 requires containerd.io >= 1.2.2-3, but none of the providers can be installed

centos8默认使用podman代替docker，所以需要containerd.io.

安装containerd.io：
yum install https://download.docker.com/linux/fedora/30/x86_64/stable/Packages/containerd.io-1.2.6-3.3.fc30.x86_64.rpm

再安装docker

yum install docker-ce
或者执行前面的
curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun

还是报错：
问题: containerd.io >= 1.2.2-3
解决
1、要么就降低docker 的版本
2、如果不想降低docker 版本，那么就更新 containerd.io 的版本

yum install -y wget
wget https://download.docker.com/linux/centos/7/x86_64/edge/Packages/containerd.io-1.2.6-3.3.el7.x86_64.rpm
yum install -y  containerd.io-1.2.6-3.3.el7.x86_64.rpm
yum install -y docker-ce docker-ce-cli

启动docker

systemctl start docker
systemctl enable docker
docker -v