尝试在 CentOS 8 上安装 docker 时出现一系列文件冲突，如 runc 和 containerd

Question

当我尝试在 CentOS 8 上安装 docker/docker-ce 时，我得到了我认为的文件冲突错误。这也是如何在 CentOS 上安装 docker？

所以这是我为得到错误所做的：

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

//Check for available versions and if its the latest just install it:
dnf list docker-ce
dnf install docker-ce

Error:
 Problem: problem with installed package podman-1.6.4-10.module_el8.2.0+305+5e198a41.x86_64
  - package podman-1.6.4-10.module_el8.2.0+305+5e198a41.x86_64 requires runc >= 1.0.0-57, but none of the providers can be installed
  - package containerd.io-1.3.7-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.0-65.rc10.module_el8.2.0+305+5e198a41.x86_64
  - package containerd.io-1.3.7-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.0-65.rc10.module_el8.2.0+305+5e198a41.x86_64
  - package docker-ce-3:19.03.13-3.el8.x86_64 requires containerd.io >= 1.2.2-3, but none of the providers can be installed
  - conflicting requests
  - package runc-1.0.0-64.rc10.module_el8.2.0+304+65a3c2ac.x86_64 is filtered out by modular filtering
(try to add '--allowerasing' to command line to replace conflicting packages or '--skip-broken' to skip uninstallable packages)

当然我也会尝试 --nobest ：

sudo  dnf install docker-ce --nobest

Last metadata expiration check: 0:17:51 ago on Thu 24 Sep 2020 01:51:30 PM EDT.
Error:
 Problem: problem with installed package podman-1.6.4-10.module_el8.2.0+305+5e198a41.x86_64
  - package podman-1.6.4-10.module_el8.2.0+305+5e198a41.x86_64 requires runc >= 1.0.0-57, but none of the providers can be installed
  - package containerd.io-1.3.7-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.0-65.rc10.module_el8.2.0+305+5e198a41.x86_64
  - package containerd.io-1.3.7-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.0-65.rc10.module_el8.2.0+305+5e198a41.x86_64
  - package docker-ce-3:19.03.13-3.el8.x86_64 requires containerd.io >= 1.2.2-3, but none of the providers can be installed
  - conflicting requests
  - package runc-1.0.0-64.rc10.module_el8.2.0+304+65a3c2ac.x86_64 is filtered out by modular filtering
(try to add '--allowerasing' to command line to replace conflicting packages or '--skip-broken' to skip uninstallable packages)ting packages or '--skip-broken' to skip uninstallable packages)

如果我尝试--allowerasing，确定可能会起作用……但是擦除这些 runc、podman 和 containerd 文件是否安全？？？之后会起作用吗？发生在如此重要的发行版上真是太奇怪了，但我找不到可靠的解决方案。

Answer 1

该podman和buildah使用包冲突docker-ce。首先删除它们：

yum erase podman buildah

然后你可以安装docker-ce：

yum install docker-ce

或者

dnf install docker-ce