本文参考：http://www.studylinux.net/?p=4515

1. 操作系统centos7（selinux  firewalld关闭 ）

2. 安装cobbler命令修改为阿里的yum源  163的也可以

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

3.安装cobbler命令
最好都安装上

yum -y install cobbler dhcp httpd xinetd tftp-server

4.启动服务器

[root@localhost ~]# systemctl  start  httpd
[root@localhost ~]# systemctl  enable   httpd
Created symlink from /etc/systemd/system/multi-user.target.wants/httpd.service to /usr/lib/systemd/system/httpd.service.
[root@localhost ~]# systemctl start  cobblerd
[root@localhost ~]# systemctl enable    cobblerd
Created symlink from /etc/systemd/system/multi-user.target.wants/cobblerd.service to /usr/lib/systemd/system/cobblerd.service.
[root@localhost ~]# 如果出错：
[root@localhost ~]# rpm -ql cobbler|grep setting
/etc/cobbler/settings
把 setting
文件中的server和server_next
修改为本机的IP，默认是127.0.0.1
然后用cobbler check确定没有问题

5.同步源

mkdir  -p  /var/www/cobbler/repo_mirror
cd /var/www/cobbler/repo_mirror
cobbler  repo add  --name=zabbix --mirror=http://mirrors.aliyun.com/zabbix/zabbix/3.0/rhel/7/x86_64/ --arch=x86_64  --breed=yum
cobbler reposynctask started: 2017-06-04_143254_reposync
task started (id=Reposync, time=Sun Jun  4 14:32:54 2017)
hello, reposync
run, reposync, run!
creating: /var/www/cobbler/repo_mirror/zabbix/config.repo
creating: /var/www/cobbler/repo_mirror/zabbix/.origin/zabbix.repo
running: /usr/bin/reposync -l -n -d --config=/var/www/cobbler/repo_mirror/zabbix/.origin/zabbix.repo --repoid=zabbix --download_path=/var/www/cobbler/repo_mirror -a x86_64
3.6 kB     00:00
4.3 kB     00:00
3.4 kB     00:00
3.4 kB     00:00     951 B     00:00
170 kB   00:01
155 kB   00:01
167 kB   00:01
epel/x86_64/updateinfo         FAILED
base/7/x86_64/primary_db       FAILED
808 kB   00:08
4.7 MB   00:46
5.6 MB   01:19
5.6 MB   01:00     20 kB   00:00
230 kB   00:03
335 kB   00:07
714 kB   00:04
621 kB   00:15
622 kB   00:16     11 kB   00:00
240 kB   00:04
606 kB   00:08
1.7 MB   00:20
1.7 MB   00:16
5.1 kB   00:00
4.6 kB   00:00
4.7 kB   00:00
3.5 MB   00:48     received on stderr:
running: createrepo  -c cache -s sha /var/www/cobbler/repo_mirror/zabbix
received on stdout: Spawning worker 0 with 7 pkgs
Spawning worker 1 with 7 pkgs
Workers Finished
Saving Primary metadata
Saving file lists metadata
Saving other metadata
Generating sqlite DBs
Sqlite DBs completereceived on stderr:
running: chown -R root:apache /var/www/cobbler/repo_mirror/zabbix
received on stdout:
received on stderr:
running: chmod -R 755 /var/www/cobbler/repo_mirror/zabbix
received on stdout:
received on stderr:
*** TASK COMPLETE ***
[root@localhost repo_mirror]#
检查校验
[root@localhost repo_mirror]# cd  /var/www/cobbler/repo_mirror/zabbix/
[root@localhost zabbix]# ll
total 10644
drwxr-xr-x 2 root apache    4096 Jun  4 14:35 cache
-rwxr-xr-x 1 root apache     111 Jun  4 14:32 config.repo
drwxr-xr-x 2 root apache    4096 Jun  4 14:35 repodata
-rwxr-xr-x 1 root apache  343120 Apr 25 03:56 zabbix-agent-3.0.9-1.el7.x86_64.rpm
-rwxr-xr-x 1 root apache  235320 Apr 25 03:57 zabbix-get-3.0.9-1.el7.x86_64.rpm
-rwxr-xr-x 1 root apache  730860 Apr 25 03:57 zabbix-java-gateway-3.0.9-1.el7.x86_64.rpm
-rwxr-xr-x 1 root apache  636756 Apr 25 03:57 zabbix-proxy-mysql-3.0.9-1.el7.x86_64.rpm
-rwxr-xr-x 1 root apache  636252 Apr 25 03:57 zabbix-proxy-pgsql-3.0.9-1.el7.x86_64.rpm
-rwxr-xr-x 1 root apache  620776 Apr 25 03:57 zabbix-proxy-sqlite3-3.0.9-1.el7.x86_64.rpm
-rwxr-xr-x 1 root apache   11416 Feb 15  2016 zabbix-release-3.0-1.el7.noarch.rpm
-rwxr-xr-x 1 root apache  246096 Apr 25 03:57 zabbix-sender-3.0.9-1.el7.x86_64.rpm
-rwxr-xr-x 1 root apache 1819916 Apr 25 03:57 zabbix-server-mysql-3.0.9-1.el7.x86_64.rpm
-rwxr-xr-x 1 root apache 1818888 Apr 25 03:57 zabbix-server-pgsql-3.0.9-1.el7.x86_64.rpm
-rwxr-xr-x 1 root apache 3679892 Apr 25 03:57 zabbix-web-3.0.9-1.el7.noarch.rpm
-rwxr-xr-x 1 root apache    5224 Apr 25 03:57 zabbix-web-japanese-3.0.9-1.el7.noarch.rpm
-rwxr-xr-x 1 root apache    4756 Apr 25 03:57 zabbix-web-mysql-3.0.9-1.el7.noarch.rpm
-rwxr-xr-x 1 root apache    4768 Apr 25 03:57 zabbix-web-pgsql-3.0.9-1.el7.noarch.rpm
[root@localhost zabbix]#

apache 映射的地址

http://192.168.56.113/cobbler/repo_mirror/zabbix/

[root@bogon ~]# vim /etc/yum.repos.d/zabbix.repo
[local-zabbix]   #可以自己定义
name=local zabbix
baseurl=http://192.168.56.113/cobbler/repo_mirror/zabbix/
enabled=1
gpgcheck=0

下面我就没接着写 参考链接的

[root@aqdl ~]# cobbler repo add  --name=epel --mirror=https://mirrors.aliyun.com/epel/7/x86_64/   --arch=x86_64  --breed=yum
[root@aqdl ~]# cobbler repo add  --name=saltstack --mirror=http://repo.saltstack.com/yum/redhat/latest/x86_64/latest/  --arch=x86_64  --breed=yum
[root@aqdl ~]# cobbler  repo add  --name=openstack-mitaka  --mirror=https://mirrors.aliyun.com/centos/7/cloud/x86_64/openstack-mitaka/  --arch=x86_64  --breed=yum
[root@aqdl ~]# cobbler  repo add  --name=updates  --mirror=https://mirrors.aliyun.com/centos/7/updates/x86_64/   --arch=x86_64  --breed=yum
[root@aqdl ~]# cobbler  repo add  --name=extras   --mirror=https://mirrors.aliyun.com/centos/7/extras/x86_64/  --arch=x86_64  --breed=yum
[root@aqdl ~]# cobbler  repo add  --name=os   --mirror=https://mirrors.aliyun.com/centos/7/os/x86_64/  --arch=x86_64  --breed=yum
[root@aqdl ~]# cobbler reposync  #在夜深人静的时候同步效果显著！

同步完毕制作
一个repo文件放在 /etc/yum.repos.d/

下面就可以了