yum仓库制作

一、服务端配置：

开启本地缓存 ######可有可无

[root@hosue ~]#  vim /etc/yum.conf 
[root@m01 ~]# sed -i 's#keepcache=0#keepcache=1#g' /etc/yum.conf
[root@m01 ~]# sed -i '3c keepcache=1' /etc/yum.conf               ======三种方法取一即可
[main]
cachedir=/var/cache/yum/$basearch/$releasever
keepcache=1                       ==========本地缓存，1为开启，0为不开启，咱们这里选择打开
debuglevel=2
logfile=/var/log/yum.log
exactarch=1
obsoletes=1
gpgcheck=1
plugins=1
installonly_limit=5
bugtracker_url=http://bugs.centos.org/set_project.php?project_id=23&ref=http://bugs.
centos.org/bug_report_page.php?category=yum
distroverpkg=centos-release

本地缓存路径为/var/cache/yum/x86_64/7

只下载不安装的命令 ↓
yum install  --downloadonly --downloaddir=/local_basic/ nfs-utils

--downloadonly  只下载不安装
--downloaddir   指定rpm包的下载路径

安装createrepo

yum install createrepo -y
参数
-u  --baseurl  指定Base URL的地址
-o --outputdir  指定元数据的输出位置
-x --excludes  指定在形成元数据时需要排除的包

-i --pkglist  指定一个文件，该文件内的包信息将被包含在即将生成的元数据中，格式为每个包信息独占一行，不含通配符、正则，以及范围表达式。
-n --includepkg 通过命令行指定要纳入本地库中的包信息，需要提供URL或本地路径。
-q --quiet 安静模式执行操作，不输出任何信息。
-g --groupfile  指定本地软件仓库的组划分，范例如下：
createrepo -g comps.xml /path/to/rpms注意：组文件需要和rpm包放置于同一路径下。
-v --verbose  输出详细信息。
-c --cachedir 指定一个目录，用作存放软件仓库中软件包的校验和信息。当createrepo在未发生明显改变的相同仓库文件上持续多次运行时，指定cachedir会明显提高其性能。
--update  如果元数据已经存在，且软件仓库中只有部分软件发生了改变或增减，则可用update参数直接对原有元数据进行升级，效率比重新分析rpm包依赖并生成新的元数据要高很多。
-p --pretty   以整洁的格式输出xml文件。
-d --database  该选项指定使用SQLite来存储生成的元数据，默认项。

给服务端缓存文件生成索引

[root@hosue /]# createrepo /local_basic/           生成索引文件

Saving Primary metadata
Saving file lists metadata
Saving other metadata
Generating sqlite DBs
Sqlite DBs complete

每次加入rpm包需要执行下面命令

createrepo --update /local-basic/

通过http协议访问

[root@yumcangku /]# yum install nginx -y
[root@yumcangku /]# cd /etc/nginx/conf.d/
[root@yumcangku /]# vim local_basic.conf
server {
        listen 12345;
        server_name 10.0.0.68;             ================本机IP
        root /local_basic;
        index index.html;

        location / {
            root /local_basic;
            autoindex on;
            autoindex_localtime on;
            autoindex_exact_size off;
    }
}
#####写完记着启动nginx

效果图如下:

客户端配置

1.首先打包/erc/yum.repo.d/下面的原有源也可以通过优先级设置，稍后说优先级
2.创建一个本地源local_basic.repo

[local-base]
name=Server
baseurl=http://10.0.0.68:12345
enable=1                          
gpgcheck=0   

清除yum缓存

yum clean all

执行此命令检查是否是从本地源找的包

yum provides nfs-utils
正确返回如下↓
[root@web03_64 /etc/yum.repos.d]# yum provides nfs-utils
Loaded plugins: fastestmirror
Determining fastest mirrors
local-base                                                                                                                            | 2.9 kB  00:00:00     
local-base/primary_db                                                                                                                 |  14 kB  00:00:00     
1:nfs-utils-1.3.0-0.61.el7.x86_64 : NFS utilities and supporting clients and daemons for the kernel NFS server
Repo        : local-base

三、优先级设置

1.下载第三方插件

yum install yum-plugin-priorities.noarch

2.检查是否启动服务（默认是开启的）

cat /etc/yum/pluginconf.d/priorities.conf

[main]
enabled = 1

3.修改已有源的优先级

priority=1
local_basic.repo的修改
[local-base]
name=Server
baseurl=http://10.0.0.68:12345/
enable=1
gpgcheck=0
priority=1             1则为优先级最高

CentOS-Base.repo的修改

# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.  You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the 
# remarked out baseurl= line instead.
#
#

[base]
name=CentOS-$releasever - Base - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/os/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/os/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
priority=2                              <================
#released updates 
[updates]
name=CentOS-$releasever - Updates - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/updates/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/updates/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
priority=2                              <================
#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/extras/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/extras/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
priority=2                         <================

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/centosplus/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/centosplus/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
priority=2  <================
#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/contrib/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/contrib/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
priority=2