centerOS8安装docker遇到问题及解决思路

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CentOS 8 中安装 Docker 出现和 Podman 冲突的问题

[root@monitor ~]# yum install docker-ce docker-ce-cli containerd.io
CentOS Linux 8 - AppStream                      669 kB/s | 6.2 MB     00:09    
CentOS Linux 8 - BaseOS                         351 kB/s | 2.3 MB     00:06    
Docker CE Stable - x86_64                       1.1 kB/s | 7.1 kB     00:06    
Docker CE Nightly - x86_64                      327  B/s | 2.6 kB     00:08    
Error:
 Problem 1: problem with installed package podman-2.0.5-5.module_el8.3.0+512+b3b58dca.x86_64
  - package podman-2.0.5-5.module_el8.3.0+512+b3b58dca.x86_64 requires runc >= 1.0.0-57, but none of the providers can be installed
  - package containerd.io-1.4.3-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.0-68.rc92.module_el8.3.0+475+c50ce30b.x86_64
  - package containerd.io-1.4.3-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.0-68.rc92.module_el8.3.0+475+c50ce30b.x86_64
  - cannot install the best candidate for the job
  - package runc-1.0.0-64.rc10.module_el8.3.0+479+69e2ae26.x86_64 is filtered out by modular filtering
 Problem 2: problem with installed package buildah-1.15.1-2.module_el8.3.0+475+c50ce30b.x86_64
  - package buildah-1.15.1-2.module_el8.3.0+475+c50ce30b.x86_64 requires runc >= 1.0.0-26, but none of the providers can be installed
  - package docker-ce-3:20.10.1-3.el8.x86_64 requires containerd.io >= 1.4.1, but none of the providers can be installed
  - package containerd.io-1.4.3-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.0-68.rc92.module_el8.3.0+475+c50ce30b.x86_64
  - package containerd.io-1.4.3-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.0-68.rc92.module_el8.3.0+475+c50ce30b.x86_64
  - package containerd.io-1.4.1-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.0-68.rc92.module_el8.3.0+475+c50ce30b.x86_64
  - package containerd.io-1.4.1-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.0-68.rc92.module_el8.3.0+475+c50ce30b.x86_64
  - package containerd.io-1.4.3-3.el8.x86_64 conflicts with runc provided by runc-1.0.0-68.rc92.module_el8.3.0+475+c50ce30b.x86_64
  - package containerd.io-1.4.3-3.el8.x86_64 obsoletes runc provided by runc-1.0.0-68.rc92.module_el8.3.0+475+c50ce30b.x86_64
  - cannot install the best candidate for the job
  - package runc-1.0.0-56.rc5.dev.git2abd837.module_el8.3.0+569+1bada2e4.x86_64 is filtered out by modular filtering
  - package runc-1.0.0-64.rc10.module_el8.3.0+479+69e2ae26.x86_64 is filtered out by modular filtering

执行如下命令

yum erase podman buildah

 配置阿里云地址

$ sudo yum-config-manager \
    --add-repo \
    http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

安装 Docker Engine-Community

安装最新版本的 Docker Engine-Community 和 containerd，或者转到下一步安装特定版本：

$ sudo yum install docker-ce docker-ce-cli containerd.io

 $ sudo systemctl start docker

卸载 docker

删除安装包：

yum remove docker-ce

删除镜像、容器、配置文件等内容：

rm -rf /var/lib/docker

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