【Docker】在AlmaLinux 8.10系统中安装Docker-ce过程分享

        随着2024年6月30日，官方停止了对CentOS 7的维护，属于CentOS 7的时代终于结束了。当然，对于CentOS 7的维护停止，大家也不用过度紧张，目前仍有部分Linux版本可以提供企业级的生产可用系统服务，比如：AlmaLinux 8.x、9.x（AlmaLinux OS - Forever-Free Enterprise-Grade Operating System）。这里提一嘴，曾经被我寄予厚望的 Rocky Linux 8，在我的安装测试过程中，Release正式版本竟然出现很多问题，和官方反馈，竟然迟迟不改，而且态度让我很失望，所以直接放弃了Rocky。目前AlmaLinux 8、9版本我都安装了，未发现问题。所以，推荐大家在生产环境使用。

关于AlmaLinux系统，官方给的定位和说明：

An Open Source, community owned and governed, forever-free enterprise Linux distribution, focused on long-term stability, providing a robust production-grade platform. AlmaLinux OS is binary compatible with RHEL®.

直译：

AlmaLinux是一个开源的，社区拥有和管理的，永远免费的企业级Linux分发，关注长期稳定，提供一个健壮的生产级别的平台。AlmaLinux 操作系统与RHEL（红帽Linux）二进制兼容。

       今天，我给大家展示一下，如何在AlmaLinux 8.10系统中安装和运行Docker-ce。

       首先，我们需要在Docker-ce官网下载兼容CentOS 8系统的rpm包，下载地址：

       https://download.docker.com/linux/centos/8/x86_64/stable/Packages/

      官方的包下载后如下：

      

         下载好以后，我们将上面的rpm包上传到AlmaLinux 8.10系统中，然后下载安装所需的依赖包。

[root@almalinux docker-ce]# ls -ltr
总用量 108728
-rw-r--r--. 1 root root 37048204 10月 22 10:37 containerd.io-1.6.32-3.1.el8.x86_64.rpm
-rw-r--r--. 1 root root 14279736 10月 22 10:38 docker-buildx-plugin-0.14.0-1.el8.x86_64.rpm
-rw-r--r--. 1 root root  8181560 10月 22 10:38 docker-ce-cli-26.1.3-1.el8.x86_64.rpm
-rw-r--r--. 1 root root  5210852 10月 22 10:38 docker-ce-rootless-extras-26.1.3-1.el8.x86_64.rpm
-rw-r--r--. 1 root root 28542392 10月 22 10:38 docker-ce-26.1.3-1.el8.x86_64.rpm
-rw-r--r--. 1 root root 14046812 10月 22 10:38 docker-compose-plugin-2.27.0-1.el8.x86_64.rpm
-rw-r--r--. 1 root root  4010384 10月 22 10:38 docker-scan-plugin-0.23.0-3.el8.x86_64.rpm

         安装的时候，由于和AlmaLinux系统自带的Podman组件冲突而安装失败，因此需要在命令里面增加一些参数  

[root@almalinux docker-ce]# yum install -y ./*.rpm --downloadonly --downloaddir=./
上次元数据过期检查：0:00:49 前，执行于 2024年10月22日 星期二 10时42分32秒。
错误：
 问题 1: 安装的软件包的问题 podman-4:4.9.4-1.module_el8.10.0+3845+87b84552.x86_64
  - package podman-4:4.9.4-1.module_el8.10.0+3845+87b84552.x86_64 from @System requires runc >= 1.0.0-57, but none of the providers can be installed
  - package podman-4:4.9.4-1.module_el8.10.0+3845+87b84552.x86_64 from appstream requires runc >= 1.0.0-57, but none of the providers can be installed
  - package podman-4:4.9.4-12.module_el8.10.0+3876+e55593a8.x86_64 from appstream requires runc >= 1.0.0-57, but none of the providers can be installed
  - package podman-4:4.9.4-13.module_el8.10.0+3898+7a25cb1a.x86_64 from appstream requires runc >= 1.0.0-57, but none of the providers can be installed
  - package podman-4:4.9.4-13.module_el8.10.0+3901+4b80ecd7.x86_64 from appstream requires runc >= 1.0.0-57, but none of the providers can be installed
  - package podman-4:4.9.4-3.module_el8.10.0+3858+6ad51f9f.x86_64 from appstream requires runc >= 1.0.0-57, but none of the providers can be installed
  - package podman-4:4.9.4-4.module_el8.10.0+3862+c5a22a8d.x86_64 from appstream requires runc >= 1.0.0-57, but none of the providers can be installed
  - package containerd.io-1.6.32-3.1.el8.x86_64 from @commandline conflicts with runc provided by runc-1:1.1.12-1.module_el8.10.0+3845+87b84552.x86_64 from @System
  - package containerd.io-1.6.32-3.1.el8.x86_64 from @commandline obsoletes runc provided by runc-1:1.1.12-1.module_el8.10.0+3845+87b84552.x86_64 from @System
  - package containerd.io-1.6.32-3.1.el8.x86_64 from @commandline conflicts with runc provided by runc-1:1.1.12-1.module_el8.10.0+3845+87b84552.x86_64 from appstream
  - package containerd.io-1.6.32-3.1.el8.x86_64 from @commandline obsoletes runc provided by runc-1:1.1.12-1.module_el8.10.0+3845+87b84552.x86_64 from appstream
  - package containerd.io-1.6.32-3.1.el8.x86_64 from @commandline conflicts with runc provided by runc-1:1.1.12-1.module_el8.10.0+3858+6ad51f9f.x86_64 from appstream
  - package containerd.io-1.6.32-3.1.el8.x86_64 from @commandline obsoletes runc provided by runc-1:1.1.12-1.module_el8.10.0+3858+6ad51f9f.x86_64 from appstream
  - package containerd.io-1.6.32-3.1.el8.x86_64 from @commandline conflicts with runc provided by runc-1:1.1.12-4.module_el8.10.0+3876+e55593a8.x86_64 from appstream
  - package containerd.io-1.6.32-3.1.el8.x86_64 from @commandline obsoletes runc provided by runc-1:1.1.12-4.module_el8.10.0+3876+e55593a8.x86_64 from appstream
  - package containerd.io-1.6.32-3.1.el8.x86_64 from @commandline conflicts with runc provided by runc-1:1.1.12-5.module_el8.10.0+3901+4b80ecd7.x86_64 from appstream
  - package containerd.io-1.6.32-3.1.el8.x86_64 from @commandline obsoletes runc provided by runc-1:1.1.12-5.module_el8.10.0+3901+4b80ecd7.x86_64 from appstream
  - 冲突的请求
  - package runc-1.0.0-66.rc10.module_el8.5.0+2635+e4386a39.x86_64 from appstream is filtered out by modular filtering
  - package runc-1.0.0-73.rc95.module_el8.7.0+3406+a17c4180.x86_64 from appstream is filtered out by modular filtering
  - package runc-1:1.1.12-1.module_el8.10.0+3846+c31e1972.x86_64 from appstream is filtered out by modular filtering
 问题 2: 安装的软件包的问题 containers-common-2:1-81.module_el8.10.0+3792+03eaed9c.x86_64
  - package containers-common-2:1-81.module_el8.10.0+3792+03eaed9c.x86_64 from @System requires runc, but none of the providers can be installed
  - package containers-common-2:1-81.module_el8.10.0+3792+03eaed9c.x86_64 from appstream requires runc, but none of the providers can be installed
  - package containers-common-2:1-81.module_el8.10.0+3858+6ad51f9f.x86_64 from appstream requires runc, but none of the providers can be installed
  - package containers-common-2:1-82.module_el8.10.0+3876+e55593a8.x86_64 from appstream requires runc, but none of the providers can be installed
  - package containers-common-2:1-82.module_el8.10.0+3901+4b80ecd7.x86_64 from appstream requires runc, but none of the providers can be installed
  - package containerd.io-1.6.32-3.1.el8.x86_64 from @commandline conflicts with runc provided by runc-1:1.1.12-1.module_el8.10.0+3845+87b84552.x86_64 from @System
  - package containerd.io-1.6.32-3.1.el8.x86_64 from @commandline obsoletes runc provided by runc-1:1.1.12-1.module_el8.10.0+3845+87b84552.x86_64 from @System
  - package containerd.io-1.6.32-3.1.el8.x86_64 from @commandline conflicts with runc provided by runc-1:1.1.12-1.module_el8.10.0+3845+87b84552.x86_64 from appstream
  - package containerd.io-1.6.32-3.1.el8.x86_64 from @commandline obsoletes runc provided by runc-1:1.1.12-1.module_el8.10.0+3845+87b84552.x86_64 from appstream
  - package containerd.io-1.6.32-3.1.el8.x86_64 from @commandline conflicts with runc provided by runc-1:1.1.12-1.module_el8.10.0+3858+6ad51f9f.x86_64 from appstream
  - package containerd.io-1.6.32-3.1.el8.x86_64 from @commandline obsoletes runc provided by runc-1:1.1.12-1.module_el8.10.0+3858+6ad51f9f.x86_64 from appstream
  - package containerd.io-1.6.32-3.1.el8.x86_64 from @commandline conflicts with runc provided by runc-1:1.1.12-4.module_el8.10.0+3876+e55593a8.x86_64 from appstream
  - package containerd.io-1.6.32-3.1.el8.x86_64 from @commandline obsoletes runc provided by runc-1:1.1.12-4.module_el8.10.0+3876+e55593a8.x86_64 from appstream
  - package containerd.io-1.6.32-