centos7搭建yum源仓库（阿里源）

CentOS7下的YUM源服务器搭建

注意：环境要求

`阿里源的centos6和centos7各14G不到，注意磁盘空间`
'环境准备，修改hostname，关闭防火墙，disabled selinux' 
[root@localhost ~]# hostnamectl set-hostname --static yum-server
[root@yum-server ~]# systemctl disable firewalld --now
[root@yum-server ~]# sed -i 's/^SELINUX=.*/SELINUX=disabled/' /etc/sysconfig/selinux

配置服务器端yum

安装yum源工具

[root@yum-server ~]# yum -y install epel-release.noarch     # nginx需要epel源
[root@yum-server ~]# yum -y install nginx    # 安装nginx
[root@yum-server ~]# createrepo yum-utils    # 安装repository管理工具

配置nginx

[root@yum-server nginx]# cd /etc/nginx/
[root@yum-server nginx]# cp nginx.conf{,.bak}    # 备份！备份！备份！
[root@yum-server nginx]# vim nginx.conf
    server {
        listen       80;
        server_name  localhost;
        root         /usr/share/nginx/html;

        # Load configuration files for the default server block.
        include /etc/nginx/default.d/*.conf;

        location / {
        }
        # 在server段加入以下三段内容
        autoindex on;              # 表示：自动在index.html的索引打开
        autoindex_exact_size on;   # 表示：如果有文件，则显示文件的大小
        autoindex_localtime on;    # 表示：显示更改时间，以当前系统的时间为准

        error_page 404 /404.html;
            location = /40x.html {
        }

        error_page 500 502 503 504 /50x.html;
            location = /50x.html {
        }
    }
    
[root@yum-server nginx]# nginx -t     # 检测一下nginx语法是否有错
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful

[root@yum-server nginx]# systemctl enable nginx.service --now    # 启动nginx，设为开机自启
Created symlink from /etc/systemd/system/multi-user.target.wants/nginx.service to /usr/lib/systemd/system/nginx.service.
[root@yum-server nginx]# curl -I http://localhost    # 访问本地，状态码返回200，服务正常
HTTP/1.1 200 OK
Server: nginx/1.16.1
Date: Sun, 05 Jul 2020 09:48:05 GMT
Content-Type: text/html
Content-Length: 4833
Last-Modified: Fri, 16 May 2014 15:12:48 GMT
Connection: keep-alive
ETag: "53762af0-12e1"
Accept-Ranges: bytes

配置nginx页面目录

[root@yum-server nginx]# cd /usr/share/nginx/html/
[root@yum-server html]# mkdir -p CentOS-YUM/Aliyun/{version_6,version_7}/64bit
[root@yum-server html]# tree /usr/share/nginx/html/CentOS-YUM/
/usr/share/nginx/html/CentOS-YUM/
└── Aliyun
    ├── version_6
    │   └── 64bit
    └── version_7
        └── 64bit

5 directories, 0 files

[root@yum-server html]# cd CentOS-YUM/
[root@yum-server CentOS-YUM]# vim index.html
<p style="font-weight:bolder;color:green;font-size:30px;">ALL of the packages in the below:p>
<br/>

<a href="http://192.168.57.133/CentOS-YUM/Aliyun">version_6a><br/>

These packagers using for Centos 6<br/>

<a href="http://192.168.57.133/CentOS-YUM/Aliyun">version_7a><br/>

These packagers using for Centos 7<br/>

<p style="font-weight:bolder;color:red;font-size:18px;">Please replace the file and fill in the f    ollowing content:p>
<p style="font-weight:bolder;color:blue;font-size:15px;">Way: /etc/yum.repos.d/CentOS-Base.repo

替换yum源文件

# 备份原来的官方yum源
[root@yum-server CentOS-YUM]# cd /etc/yum.repos.d/
[root@yum-server yum.repos.d]# mv ./* /tmp/

[root@yum-server yum.repos.d]# wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo    # 下载aliyun的centos7的yum源
[root@yum-server yum.repos.d]# vim yum.reposync.sh    # 同步脚本
#!/usr/bin/bash
reposync -p /usr/share/nginx/html/CentOS-YUM/Aliyun/version_7/64bit/
# 同步/etc/yum.repos.d/CentOS-Base.repo内的rpm包
/usr/bin/sed -i "s/7/6/g" `grep 7 -rl /etc/yum.repos.d/CentOS-Base.repo`
# 将CentOS-Base.repo内的7改成6，后续同步centos6的rpm包使用
reposync -p /usr/share/nginx/html/CentOS-YUM/Aliyun/version_6/64bit/
# 同步/etc/yum.repos.d/CentOS-Base.repo内的rpm包（此时是centos6的包）
/usr/bin/sed -i "s/6/7/g" `grep 6 -rl /etc/yum.repos.d/CentOS-Base.repo`
# 重新将CentOS-Base.repo内的6改回成7，下次同步的时候，不会出错
[root@yum-server yum.repos.d]# chmod +x yum.reposync.sh   # 要给执行权限
[root@yum-server yum.repos.d]# ll
total 8
-rw-r--r-- 1 root root 2523 Jun 16  2018 CentOS-Base.repo
-rwxr-xr-x 1 root root  303 Jul  5 19:02 yum.reposync.sh
[root@yum-server yum.repos.d]# sh yum.reposync.sh
# 等待同步完成
# 同步完成，查看文件大小，合计27G
[root@yum-server CentOS-YUM]# du -ch Aliyun/
9.0G    Aliyun/version_7/64bit/base/Packages
9.0G    Aliyun/version_7/64bit/base
616M    Aliyun/version_7/64bit/extras/Packages
616M    Aliyun/version_7/64bit/extras
3.6G    Aliyun/version_7/64bit/updates/Packages
3.6G    Aliyun/version_7/64bit/updates
14G     Aliyun/version_7/64bit
14G     Aliyun/version_7
9.0G    Aliyun/version_6/64bit/base/Packages
9.0G    Aliyun/version_6/64bit/base
616M    Aliyun/version_6/64bit/extras/Packages
616M    Aliyun/version_6/64bit/extras
3.6G    Aliyun/version_6/64bit/updates/Packages
3.6G    Aliyun/version_6/64bit/updates
14G     Aliyun/version_6/64bit
14G     Aliyun/version_6
27G     Aliyun/
27G     total

建立yum源仓库

'因为建仓最终的目的也是可供client来进行检索的，所以得每个Packages目录都要建成仓库，所以建仓的时候，目录指到最底层的Packages,而-np更新的时候只用指定到64bit的目录就可以了，否则会重复建立base、extras、updates三个目录进行下载
[root@yum-server ~]# createrepo -p /usr/share/nginx/html/CentOS-YUM/Aliyun/version_7/64bit/base/Packages/
Spawning worker 0 with 10070 pkgs
Workers Finished
Saving Primary metadata
Saving file lists metadata
Saving other metadata
Generating sqlite DBs
Sqlite DBs complete
[root@yum-server ~]# createrepo -p /usr/share/nginx/html/CentOS-YUM/Aliyun/version_7/64bit/extras/Packages/
Spawning worker 0 with 397 pkgs
Workers Finished
Saving Primary metadata
Saving file lists metadata
Saving other metadata
Generating sqlite DBs
Sqlite DBs complete
[root@yum-server ~]# createrepo -p /usr/share/nginx/html/CentOS-YUM/Aliyun/version_7/64bit/updates/Packages/
Spawning worker 0 with 884 pkgs
Workers Finished
Saving Primary metadata
Saving file lists metadata
Saving other metadata
Generating sqlite DBs
Sqlite DBs complete

[root@yum-server ~]# createrepo -p /usr/share/nginx/html/CentOS-YUM/Aliyun/version_6/64bit/base/Packages/
Spawning worker 0 with 10070 pkgs
Workers Finished
Saving Primary metadata
Saving file lists metadata
Saving other metadata
Generating sqlite DBs
Sqlite DBs complete
[root@yum-server ~]# createrepo -p /usr/share/nginx/html/CentOS-YUM/Aliyun/version_6/64bit/updates/Packages/
Spawning worker 0 with 884 pkgs
Workers Finished
Saving Primary metadata
Saving file lists metadata
Saving other metadata
Generating sqlite DBs
Sqlite DBs complete
[root@yum-server ~]# createrepo -p /usr/share/nginx/html/CentOS-YUM/Aliyun/version_6/64bit/extras/Packages/
Spawning worker 0 with 397 pkgs
Workers Finished
Saving Primary metadata
Saving file lists metadata
Saving other metadata
Generating sqlite DBs
Sqlite DBs complete[root@yum-server ~]# tree -d /usr/share/nginx/html/CentOS-YUM/Aliyun/          # 建仓完成后，会自动生成一个repodata目录
/usr/share/nginx/html/CentOS-YUM/Aliyun/
├── version_6
│   └── 64bit
│       ├── base
│       │   └── Packages
│       │       └── repodata
│       ├── extras
│       │   └── Packages
│       │       └── repodata
│       └── updates
│           └── Packages
│               └── repodata
└── version_7
    └── 64bit
        ├── base
        │   └── Packages
        │       └── repodata
        ├── extras
        │   └── Packages
        │       └── repodata
        └── updates
            └── Packages
                └── repodata

22 directories

'可以写一个更新yum源的脚本，然后写一个计划任务，定期更新yum源（reposync -np 就是更新新的rpm包）
#!/usr/bin/bash
reposync -np /usr/share/nginx/html/CentOS-YUM/Aliyun/version_7/64bit/
echo "centos7 is sync complate"
/usr/bin/sed -i "s/7/6/g" `grep 7 -rl /etc/yum.repos.d/CentOS-Base.repo`

reposync -np /usr/share/nginx/html/CentOS-YUM/Aliyun/version_6/64bit/
echo "centos6 is sync complate"
/usr/bin/sed -i "s/6/7/g" `grep 6 -rl /etc/yum.repos.d/CentOS-Base.repo`

配置客户端yum

# 备份原来的yum源
[root@localhost ~]# cd /etc/yum.repos.d/
[root@localhost yum.repos.d]# ls
CentOS-Base.repo  CentOS-Debuginfo.repo  CentOS-Media.repo    CentOS-Vault.repo  epel-testing.repo
CentOS-CR.repo    CentOS-fasttrack.repo  CentOS-Sources.repo  epel.repo
[root@localhost yum.repos.d]# mkdir back
[root@localhost yum.repos.d]# mv CentOS-* back/
[root@localhost yum.repos.d]# mv epel* back/
[root@localhost yum.repos.d]# ls
back

[root@localhost yum.repos.d]# vim CentOS-Base.repo   # 需要6，就使用6，需要7，就使用7，也可以使用yum-plugin-priorities工具来控制优先级，加上priority=1（2|3|4都可以）来控制优先级
[Aliyun_7_base]
name=source_from_localserver
baseurl=http://192.168.57.133/CentOS-YUM/Aliyun/version_7/64bit/base/Packages
gpgcheck=0
enable=1

[Aliyun_7_extras]
name=source_from_localserver
baseurl=http://192.168.57.133/CentOS-YUM/Aliyun/version_7/64bit/extras/Packages
gpgcheck=0
enable=1

[Aliyun_7_updates]
name=source_from_localserver
baseurl=http://192.168.57.133/CentOS-YUM/Aliyun/version_7/64bit/updates/Packages
gpgcheck=0
enable=1

# [Aliyun_6_base]
# name=source_from_localserver
# baseurl=http://192.168.57.133/CentOS-YUM/Aliyun/version_6/4bit/base/Packages
# gpgcheck=0
# enable=1
#
# [Aliyun_6_extras]
# name=source_from_localserver
# baseurl=http://192.168.57.133/CentOS-YUM/Aliyun/version_6/74bit/extras/Packages
# gpgcheck=0
# enable=1
#
# [Aliyun_6_updates]
# name=source_from_localserver
# baseurl=http://192.168.57.133/CentOS-YUM/Aliyun/version_6/74bit/updates/Packages
# gpgcheck=0
# enable=1
[root@localhost yum.repos.d]# yum clean all
[root@localhost yum.repos.d]# yum makecache

# 安装软件来测试一下
[root@localhost yum.repos.d]# yum -y install net-tools
Loaded plugins: fastestmirror, priorities
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package net-tools.x86_64 0:2.0-0.25.20131004git.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

=====================================================================================================
 Package            Arch            Version                             Repository              Size
=====================================================================================================
Installing:
 net-tools          x86_64          2.0-0.25.20131004git.el7            Aliyun_7_base          306 k

Transaction Summary
=====================================================================================================
Install  1 Package

Total download size: 306 k
Installed size: 917 k
Downloading packages:
net-tools-2.0-0.25.20131004git.el7.x86_64.rpm                                 | 306 kB  00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : net-tools-2.0-0.25.20131004git.el7.x86_64                                         1/1
  Verifying  : net-tools-2.0-0.25.20131004git.el7.x86_64                                         1/1

Installed:
  net-tools.x86_64 0:2.0-0.25.20131004git.el7

Complete!

安装完成，Repository里面显示，是从Aliyun_7_base内获取的，到此，yum源仓库（阿里源）部署完成