setup yum repo

  1. yum install -y yum-utils
  2. yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

install docker engine

  1. yum install docker-ce docker-ce-cli containerd.io --allowerasing

如果不加—allowerasing，则会报以下错误

  1. [root@localhost home]# yum install docker-ce docker-ce-cli containerd.io
  2. Docker CE Stable - x86_64                                                                                                                                                                                                                                                                                                                 6.5 kB/s | 7.1 kB     00:01
  3. Error:
  4.  Problem 1: problem with installed package podman-1.6.4-10.module_el8.2.0+305+5e198a41.x86_64
  5.   - 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
  6.   - 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
  7.   - package containerd.io-1.4.3-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.0-65.rc10.module_el8.2.0+305+5e198a41.x86_64
  8.   - package containerd.io-1.4.3-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.0-65.rc10.module_el8.2.0+305+5e198a41.x86_64
  9.   - 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
  10.   - 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
  11.   - cannot install the best candidate for the job
  12.   - package runc-1.0.0-64.rc10.module_el8.3.0+479+69e2ae26.x86_64 is filtered out by modular filtering
  13.  Problem 2: problem with installed package buildah-1.11.6-7.module_el8.2.0+305+5e198a41.x86_64
  14.   - package buildah-1.11.6-7.module_el8.2.0+305+5e198a41.x86_64 requires runc >= 1.0.0-26, but none of the providers can be installed
  15.   - 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
  16.   - package containerd.io-1.4.3-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.0-65.rc10.module_el8.2.0+305+5e198a41.x86_64
  17.   - package containerd.io-1.4.3-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.0-65.rc10.module_el8.2.0+305+5e198a41.x86_64
  18.   - 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
  19.   - 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
  20.   - 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
  21.   - cannot install the best candidate for the job
  22.   - package runc-1.0.0-56.rc5.dev.git2abd837.module_el8.3.0+569+1bada2e4.x86_64 is filtered out by modular filtering
  23.   - package runc-1.0.0-64.rc10.module_el8.3.0+479+69e2ae26.x86_64 is filtered out by modular filtering
  24. (try to add '--allowerasing' to command line to replace conflicting packages or '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)

enable & start docker service

  1. systemctl enable docker
  2. systemctl start docker

verify

  1. docker run hello-world

download centos image & run

  1. docker pull centos:latest
  2. docker run -it -d -v /home/:/home/test:ro --network=bridge --name centos centos:latest /bin/bash

参考资料

https://docs.docker.com/engine/install/centos/

https://hub.docker.com/_/centos