1、本地yum搭建環(huán)境準(zhǔn)備
--最小化安裝CentOS7.2系統(tǒng)（CentOS-7-x86_64-Minimal-1511.iso）
--IPADDR=123.45.67.111/24
1.1 關(guān)閉防火墻、關(guān)閉SELinux

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systemctl stop firewalld
systemctl disable firewalld
setenforce 0
sed -i 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config

1.2 安裝基本軟件

yum -y install vim createrepo httpd

1.3 備份CentOS-Base.repo文件

mkdir /etc/yum.repos.d/backup
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/backup 

1.4 重建repo文件

echo '[ocata]
name=CentOS-Ocata
baseurl=https://mirrors.aliyun.com/centos/7/cloud/x86_64/openstack-ocata/
enable=1
gpgcheck=0

[ocata-extras]
name=CentOS-Ocata-extras
baseurl=https://mirrors.aliyun.com/centos/7/extras/x86_64/
enable=1
gpgcheck=0

[centos7]
name=Centos-7
baseurl=https://mirrors.aliyun.com/centos/7/os/x86_64/
enable=1
gpgcheck=0
'>/etc/yum.repos.d/CentOS-Base.repo

1.5 更新系統(tǒng)及重啟

yum clean all
yum makecache
yum -y update
reboot

1.6 加載遠(yuǎn)端軟件包（共12G，我下載用時(shí)大約20分鐘）

cd /var/www/
reposync --repoid=ocata
reposync --repoid=ocata-extras
reposync --repoid=centos7

1.7 生成repodata

createrepo /var/www/ocata/
createrepo /var/www/ocata-extras/
createrepo /var/www/centos7/

1.8 配置httpd服務(wù)

vim /etc/httpd/conf/httpd.conf
119行將DocumentRoot "/var/www/html"改為DocumentRoot "/var/www/"
131行將改為

1.9 啟動(dòng)httpd并開(kāi)機(jī)啟動(dòng)

systemctl start httpd
systemctl enable httpd

1.10 驗(yàn)證httpd服務(wù)
瀏覽器地址欄輸入http://123.45.67.111/ocata 驗(yàn)證
2、重建本地repo文件以使用yum源
2.1 備份本地CentOS-Base.repo文件

mkdir /etc/yum.repos.d/backup
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/backup 

2.2 重建repo文件

echo '[ocata]
name=CentOS-Ocata
baseurl=http://123.45.67.111/ocata/
enable=1
gpgcheck=0

[ocata-extras]
name=CentOS-Ocata-extras
baseurl=http://123.45.67.111/ocata-extras/
enable=1
gpgcheck=0

[centos7]
name=Centos-7
baseurl=http://123.45.67.111/centos7/
enable=1
gpgcheck=0
'>/etc/yum.repos.d/CentOS-Base.repo

2.3 測(cè)試yum配置及生成緩存文件

yum clean all
yum makecache
yum repolist all