[云原生.docker安装]Centos7安装docker环境

目录

一、Docker版本

二、一键安装docker及docker-compose

1、新建docker-install.sh

 2、授权并运行

三、选择具体版本安装步骤详解

0、切换root

1、更新新yum源

2、yum-utils安装 

3、Loading mirror speeds from cached hostfile 解决方案

 4、查看仓库中所有docker版本，并选择新版本安装

5、启动docker

6、docker ps验证

7、设置开机自动启动

一、Docker版本

Docker 有两个版本：社区版（Community Edition，缩写为 CE）、企业版（Enterprise Edition，缩写为 EE）下面的安装都是社区版。

二、一键安装docker及docker-compose

1、新建docker-install.sh

将以下内容直接copy到docker-install.sh

#!/bin/bash
# shellcheck disable=SC2046
BASE_PATH=$(cd `dirname $0`;pwd)
echo "当前系统版本：";sudo cat /etc/redhat-release;
echo -e "\033[46;37;5m -------------- 开始安装docker所需环境 -------------- \033[0m";
# 安装docker环境
echo " ------------ 开始安装docker服务 ------------ ";
yum update -y;
yum install -y yum-utils device-mapper-persistent-data lvm2;
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo;
yum install -y docker-ce;
systemctl start docker;
systemctl enable docker;
docker version;
sudo curl -L "https://github.com/docker/compose/releases/download/1.23.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose;
sudo chmod +x /usr/local/bin/docker-compose;
docker-compose version;
echo " ------------ docker服务安装完毕 ------------ ";

 2、授权并运行

chmod  777 docker-install.sh

sh docker-install.sh

三、选择具体版本安装步骤详解

0、切换root

sudo -s

1、更新新yum源

yum -y update

Loaded plugins: fastestmirror, langpacks, versionlock
Loading mirror speeds from cached hostfile
 * base: mirrors.aliyun.com
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
github_git-lfs/x86_64/signature                                                                                                                                                       |  833 B  00:00:00     
github_git-lfs/x86_64/signature                                                                                                                                                       | 1.8 kB  00:00:00 !!! 
github_git-lfs-source/signature                                                                                                                                                       |  833 B  00:00:00     
github_git-lfs-source/signature                                                                                                                                                       | 1.8 kB  00:00:00 !!! 
Resolving Dependencies
--> Running transaction check
---> Package at.x86_64 0:3.1.13-24.el7 will be updated
---> Package at.x86_64 0:3.1.13-25.el7_9 will be an update
---> Package bash.x86_64 0:4.2.46-34.el7 will be updated 
 
.........................................................................................
 
Complete!

2、yum-utils安装 

yum install -y yum-utils

Loaded plugins: fastestmirror, langpacks, versionlock
Loading mirror speeds from cached hostfile
Nothing to do 

3、Loading mirror speeds from cached hostfile 解决方案

确保服务能连接网络才能执行以下wget命令

 wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo 

yum makecache fast 

yum install -y yum-utils

[root@]# yum install -y yum-utils
Loaded plugins: fastestmirror, langpacks, versionlock
Loading mirror speeds from cached hostfile
 * base: mirrors.aliyun.com
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
github_git-lfs/x86_64/signature                                                                                                                                                       |  833 B  00:00:00     
github_git-lfs/x86_64/signature                                                                                                                                                       | 1.8 kB  00:00:00 !!! 
github_git-lfs-source/signature                                                                                                                                                       |  833 B  00:00:00     
github_git-lfs-source/signature                                                                                                                                                       | 1.8 kB  00:00:00 !!! 
Package yum-utils-1.1.31-54.el7_8.noarch already installed and latest version
Nothing to do

 4、查看仓库中所有docker版本，并选择新版本安装

yum list docker-ce --showduplicates | sort -r

 * updates: mirrors.aliyun.com
Loading mirror speeds from cached hostfile
Loaded plugins: fastestmirror, langpacks, versionlock
 * extras: mirrors.aliyun.com
docker-ce.x86_64            3:20.10.9-3.el7                     docker-ce-stable
docker-ce.x86_64            3:20.10.8-3.el7                     docker-ce-stable
docker-ce.x86_64            3:20.10.7-3.el7                     docker-ce-stable
docker-ce.x86_64            3:20.10.6-3.el7                     docker-ce-stable
docker-ce.x86_64            3:20.10.5-3.el7                     docker-ce-stable
docker-ce.x86_64            3:20.10.4-3.el7                     docker-ce-stable
docker-ce.x86_64            3:20.10.3-3.el7                     docker-ce-stable
docker-ce.x86_64            3:20.10.2-3.el7                     docker-ce-stable
docker-ce.x86_64            3:20.10.21-3.el7                    docker-ce-stable
docker-ce.x86_64            3:20.10.20-3.el7                    docker-ce-stable
docker-ce.x86_64            3:20.10.19-3.el7                    docker-ce-stable
docker-ce.x86_64            3:20.10.18-3.el7                    docker-ce-stable
docker-ce.x86_64            3:20.10.17-3.el7                    docker-ce-stable
docker-ce.x86_64            3:20.10.16-3.el7                    docker-ce-stable
docker-ce.x86_64            3:20.10.15-3.el7                    docker-ce-stable
docker-ce.x86_64            3:20.10.14-3.el7                    docker-ce-stable
docker-ce.x86_64            3:20.10.1-3.el7                     docker-ce-stable
docker-ce.x86_64            3:20.10.13-3.el7                    docker-ce-stable
docker-ce.x86_64            3:20.10.12-3.el7                    docker-ce-stable
docker-ce.x86_64            3:20.10.11-3.el7                    docker-ce-stable
docker-ce.x86_64            3:20.10.10-3.el7                    docker-ce-stable
docker-ce.x86_64            3:20.10.0-3.el7                     docker-ce-stable
.............................................................
docker-ce.x86_64            17.03.3.ce-1.el7                    docker-ce-stable
docker-ce.x86_64            17.03.2.ce-1.el7.centos             docker-ce-stable
docker-ce.x86_64            17.03.1.ce-1.el7.centos             docker-ce-stable
docker-ce.x86_64            17.03.0.ce-1.el7.centos             docker-ce-stable
 * base: mirrors.aliyun.com
Available Packages

我选择安装的版本是 3:20.10.21-3.el7版本

yum install -y docker-ce-3:20.10.21-3.el7.x86_64

Loaded plugins: fastestmirror, langpacks, versionlock
Loading mirror speeds from cached hostfile
 * base: mirrors.aliyun.com
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
Resolving Dependencies
--> Running transaction check
---> Package docker-ce.x86_64 3:20.10.21-3.el7 will be installed
.....................................
Installed:
  docker-ce.x86_64 3:20.10.21-3.el7                                                                                                                                                                          
 
Dependency Installed:
  container-selinux.noarch 2:2.119.2-1.911c772.el7_8       containerd.io.x86_64 0:1.6.10-3.1.el7       docker-ce-cli.x86_64 1:20.10.21-3.el7       docker-ce-rootless-extras.x86_64 0:20.10.21-3.el7      
  docker-scan-plugin.x86_64 0:0.21.0-3.el7                 fuse-overlayfs.x86_64 0:0.7.2-6.el7_8       fuse3-libs.x86_64 0:3.6.1-4.el7             slirp4netns.x86_64 0:0.4.3-4.el7_8                     
 
Complete!

5、启动docker

systemctl start docker

6、docker ps验证

[root@dev-001 yum.repos.d]# docker ps
CONTAINER ID   IMAGE     COMMAND   CREATED   STATUS    PORTS     NAMES 

7、设置开机自动启动

 systemctl enable docker