Centos安装Docker、Docker-compose

Docker的搭建

Docker版本要求

要求 CentOs7 系统的内核版本高于 3.10，可通过如下指令查看版本

1. uname -r

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更新yum

需先安装必要的软件包，yum-utils、device-mapper-persistent-data、lvm2
yum-utils：提供一个yum-config-manager单元，device-mapper-persistent-data和lvm2用于储存设备映射（devicemapper）必须的两个软件包

1. sudo yum update
2. sudo yum install -y yum-utils device-mapper-persistent-data lvm2

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配置稳定的仓库

配置阿里云仓库，仓库配置会保存到/etc/yum.repos.d/docker-ce.repo文件中

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

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更新Yum安装的相关Docker软件包

1. sudo yum makecache fast#会出错
2. # centos8使用这个命令，centos8无fast参数
3. sudo yum makecache

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安装Docker

安装步骤

• 查看版本，可指定版本安装
  yum list docker-ce --showduplicates | sort -r
  
• 安装
  yum install -y docker-ce docker-ce-cli
  

出现错误：problem with installed package buildah-1.22.3-2.module_el8.5.0+911+f19012f9.x86_64

错误信息

1. Repository extras is listed more than once in the configuration
2. Last metadata expiration check: 0:08:23 ago on Tue 18 Oct 2022 13:44:28 CST.
3. Error:
4. Problem: problem with installed package buildah-1.22.3-2.module_el8.5.0+911+f19012f9.x86_64
5.   - package buildah-1.22.3-2.module_el8.5.0+911+f19012f9.x86_64 requires runc >= 1.0.0-26, but none of the providers can be installed
6.   - package containerd.io-1.4.3-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
7.   - package containerd.io-1.4.3-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
8.   - package docker-ce-3:20.10.18-3.el8.x86_64 requires containerd.io >= 1.4.1, but none of the providers can be installed
9.   - package containerd.io-1.4.3-3.2.el8.x86_64 conflicts with runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
10.   - package containerd.io-1.4.3-3.2.el8.x86_64 obsoletes runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
11.   - package containerd.io-1.4.10-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
12.   - package containerd.io-1.4.10-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
13.   - package containerd.io-1.4.11-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
14.   - package containerd.io-1.4.11-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
15.   - package containerd.io-1.4.12-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
16.   - package containerd.io-1.4.12-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
17.   - package containerd.io-1.4.13-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
18.   - package containerd.io-1.4.13-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
19.   - package containerd.io-1.4.4-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
20.   - package containerd.io-1.4.4-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
21.   - package containerd.io-1.4.6-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
22.   - package containerd.io-1.4.6-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
23.   - package containerd.io-1.4.8-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
24.   - package containerd.io-1.4.8-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
25.   - package containerd.io-1.4.9-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
26.   - package containerd.io-1.4.9-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
27.   - package containerd.io-1.5.10-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
28.   - package containerd.io-1.5.10-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
29.   - package containerd.io-1.5.11-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
30.   - package containerd.io-1.5.11-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
31.   - package containerd.io-1.6.4-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
32.   - package containerd.io-1.6.4-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
33.   - package containerd.io-1.6.6-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
34.   - package containerd.io-1.6.6-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
35.   - package containerd.io-1.6.7-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
36.   - package containerd.io-1.6.7-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
37.   - package containerd.io-1.6.8-3.1.el8.x86_64 conflicts with runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
38.   - package containerd.io-1.6.8-3.1.el8.x86_64 obsoletes runc provided by runc-1.0.2-1.module_el8.5.0+911+f19012f9.x86_64
39.   - cannot install the best candidate for the job
40.   - package runc-1.0.0-56.rc5.dev.git2abd837.module_el8.3.0+569+1bada2e4.x86_64 is filtered out by modular filtering
41.   - package runc-1.0.0-66.rc10.module_el8.5.0+1004+c00a74f5.x86_64 is filtered out by modular filtering
42.   - package runc-1.0.0-72.rc92.module_el8.5.0+1006+8d0e68a2.x86_64 is filtered out by modular filtering
43. (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)

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解决办法

• 删除podman buildah
  

1. yum erase podman buildah

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• 查看版本，可指定版本安装
  

1. yum list containerd.io --showduplicates | sort -r

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• 安装containerd.io
  

1. yum install -y containerd.io

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• 再安装docker-ce docker-ce-cli
  

1. yum install -y docker-ce docker-ce-cli

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启动docker

• 设置开机自启动
  

1. sudo systemctl start docker
2. sudo systemctl enable docker

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• 启动
  

1. sudo systemctl start docker

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• 验证
  

1. docker -v

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1. **出现以下文字，说明安装成功**

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1. Docker version 20.10.18, build b40c2f6

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卸载docker

1. yum list installed | grep docker
2. yum remove 移除需要卸载的组件
4. yum remove docker \  
5. docker-client \  
6. docker-client-latest \  
7. docker-common \  
8. docker-latest \  
9. docker-latest-logrotate \  
10. docker-logrotate \  
11. docker-selinux \  
12. docker-engine-selinux \  
13. docker-engine
15. rm -rf /etc/systemd/system/docker.service.d
17. rm -rf /var/lib/docker
19. rm -rf /var/run/docker

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安装docker-compose

1. yum install python-pip python-dev
2. pip install docker-compose
4. # centos8 使用以下命令安装
5. yum install epel-release python3-pip python3-devel
6. pip3 install --upgrade pip
7. pip3 install docker-compose

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出现以下文字，说明安装成功

1. docker-compose -v
2. docker-compose version 1.29.2, build unknown

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