卸载 CentOS 8.1 自带的podman
[root@centos8 ~]# rpm -qa | grep -i podman
podman-manpages-1.6.4-4.module_el8.1.0+298+41f9343a.noarch
podman-1.6.4-4.module_el8.1.0+298+41f9343a.x86_64
[root@centos8 ~]# dnf remove podman podman-manpages
[root@centos8 ~]# dnf config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo
[root@centos8 ~]# dnf repolist -v
docker-ce
默认软件源中的 containerd.io 版本较低，无法达到安装 docker-ce 的要求。
containerd.io > 1.2.0-3.el7
[root@centos8 ~]# wget https://download.docker.com/linux/centos/7/x86_64/stable/Packages/containerd.io-1.2.13-3.1.el7.x86_64.rpm
[root@centos8 ~]# dnf -y install containerd.io-1.2.13-3.1.el7.x86_64.rpm
[root@centos8 ~]#
[root@centos8 ~]# dnf list docker-ce
Last metadata expiration check: 0:47:00 ago on Wed 22 Apr 2020 04:01:41 PM CST.
Available Packages
docker-ce.x86_64 3:19.03.8-3.el7 docker-ce-stable
[root@centos8 ~]# dnf -y install docker-ce-3:19.03.8-3.el7
[root@centos8 ~]# systemctl start docker
[root@centos8 ~]# systemctl enable --now docker
[root@centos8 ~]# systemctl is-active docker
[root@centos8 ~]# systemctl is-enabled docker
[root@centos8 ~]# newgrp docker
[root@centos8 ~]# usermod -aG docker $USER
[root@centos8 ~]# docker version
Client: Docker Engine - Community
Version: 19.03.8
API version: 1.40
Go version: go1.12.17
Git commit: afacb8b
Built: Wed Mar 11 01:27:04 2020
OS/Arch: linux/amd64
Experimental: false
Server: Docker Engine - Community
Engine:
Version: 19.03.8
API version: 1.40 (minimum version 1.12)
Go version: go1.12.17
Git commit: afacb8b
Built: Wed Mar 11 01:25:42 2020
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.2.13
GitCommit: 7ad184331fa3e55e52b890ea95e65ba581ae3429
runc:
Version: 1.0.0-rc10
GitCommit: dc9208a3303feef5b3839f4323d9beb36df0a9dd
docker-init:
Version: 0.18.0
GitCommit: fec3683
[root@centos8 ~]#
[root@centos8 ~]# vim /etc/docker/daemon.json
[root@centos8 ~]# cat /etc/docker/daemon.json
{
"registry-mirrors" : [
"https://registry.docker-cn.com",
"https://docker.mirrors.ustc.edu.cn",
"http://hub-mirror.c.163.com",
"https://cr.console.aliyun.com/"
]
}
[root@centos8 ~]# systemctl restart docker