在部署Openstack的时候，可能环境受限，不能连接外网，这时候需要通过本地yum源完成安装。
以Pike版，Centos平台为例，说明如何一步步搭建本地yum源。
先安装httpd
代码语言：javascript复制yum install httpd除了apache httpd外，也可以安装nginx
并开启httpd服务
配置远程yum源
国外源往往不稳定，速度不够快，国内阿里镜像比较稳定。第四行删除阿里内网地址
代码语言：javascript复制rm -f /etc/yum.repos.d/*
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
curl -o /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
sed -i '/aliyuncs.com/d' /etc/yum.repos.d/*.repo配置Openstack Pike源
vim /etc/yum.repos.d/Ali-pike.repo
代码语言：javascript复制[Aliyun-pike]
name=Aliyun-pike
baseurl=https://mirrors.aliyun.com/centos/$releasever/cloud/$basearch/openstack-pike/
gpgcheck=0
enabled=1
cost=88
[Aliyun-qemu-ev]
name=Aliyun-qemu-ev
baseurl=https://mirrors.aliyun.com/centos/$releasever/virt/$basearch/kvm-common/
https://mirrors.aliyun.com/centos
gpgcheck=0
enabled=1同步rpm包仓库
代码语言：javascript复制[root@localhost ~]# yum makecache
[root@localhost ~]# mkdir /usr/local/nginx/html/pike
[root@localhost pike]# cd /usr/local/nginx/html/pike
[root@localhost pike]# yum repolist
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
repo id repo name status
Aliyun-pike/7/x86_64 Aliyun-pike 2,195
Aliyun-qemu-ev/7/x86_64 Aliyun-qemu-ev 39
base/7/x86_64 CentOS-7 - Base - mirrors.aliyun.com 9,591
epel/x86_64 Extra Packages for Enterprise Linux 7 - x86_64 12,184
extras/7/x86_64 CentOS-7 - Extras - mirrors.aliyun.com 327
updates/7/x86_64 CentOS-7 - Updates - mirrors.aliyun.com 1,573
repolist: 25,909
[root@localhost pike]# reposync --repoid=Aliyun-pike
(1/2195): GitPython-1.0.1-5.el7.noarch.rpm | 501 kB 00:00:00
(2/2195): PyQt4-devel-4.12-1.el7.x86_64.rpm | 419 kB 00:00:00
(3/2195): PyQt4-4.12-1.el7.x86_64.rpm | 2.9 MB 00:00:00
(4/2195): PyQt4-qsci-api-4.12-1.el7.x86_64.rpm | 156 kB 00:00:00
(5/2195): XStatic-Angular-common-1.5.8.0-1.el7.noarch.rpm | 455 kB 00:00:00
...
(2195/2195): zeromq-4.0.5-4.el7.x86_64.rpm | 434 kB 00:00:00
[root@localhost pike]# reposync --repoid=Aliyun-qemu-ev
(1/39): centos-release-qemu-ev-1.0-1.el7.noarch.rpm | 10 kB 00:00:00
(2/39): gperftools-2.4-7.el7.x86_64.rpm | 3.0 kB 00:00:00
(3/39): OVMF-20150414-2.gitc9e5618.el7.noarch.rpm | 1.3 MB 00:00:00
...
(39/39): qemu-kvm-tools-ev-2.9.0-16.el7_4.8.1.x86_64.rpm | 320 kB 00:00:05 创建清单
现在目录/usr/local/nginx/html/pike只有软件包，没有repodate清单，所以需要重新createrepo来创建清单
代码语言：javascript复制[root@localhost pike]# pwd
/usr/local/nginx/html/pike
[root@localhost pike]# createrepo /usr/local/nginx/html/pike
-bash: createrepo: command not found
[root@localhost pike]# yum install createrepo
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package createrepo.noarch 0:0.9.9-28.el7 will be installed
--> Processing Dependency: python-deltarpm for package: createrepo-0.9.9-28.el7.noarch
--> Processing Dependency: deltarpm for package: createrepo-0.9.9-28.el7.noarch
--> Running transaction check
---> Package deltarpm.x86_64 0:3.6-3.el7 will be installed
---> Package python-deltarpm.x86_64 0:3.6-3.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
==============================================================================================================================================================================================================================================================================
Package Arch Version Repository Size
==============================================================================================================================================================================================================================================================================
Installing:
createrepo noarch 0.9.9-28.el7 base 94 k
Installing for dependencies:
deltarpm x86_64 3.6-3.el7 base 82 k
python-deltarpm x86_64 3.6-3.el7 base 31 k
Transaction Summary
==============================================================================================================================================================================================================================================================================
Install 1 Package ( 2 Dependent packages)
Total download size: 207 k
Installed size: 558 k
Is this ok [y/d/N]: y
Downloading packages:
(1/3): deltarpm-3.6-3.el7.x86_64.rpm | 82 kB 00:00:00
(2/3): createrepo-0.9.9-28.el7.noarch.rpm | 94 kB 00:00:00
(3/3): python-deltarpm-3.6-3.el7.x86_64.rpm | 31 kB 00:00:00
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 446 kB/s | 207 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : deltarpm-3.6-3.el7.x86_64 1/3
Installing : python-deltarpm-3.6-3.el7.x86_64 2/3
Installing : createrepo-0.9.9-28.el7.noarch 3/3
Verifying : createrepo-0.9.9-28.el7.noarch 1/3
Verifying : deltarpm-3.6-3.el7.x86_64 2/3
Verifying : python-deltarpm-3.6-3.el7.x86_64 3/3
Installed:
createrepo.noarch 0:0.9.9-28.el7
Dependency Installed:
deltarpm.x86_64 0:3.6-3.el7 python-deltarpm.x86_64 0:3.6-3.el7
Complete!
[root@localhost pike]# createrepo /usr/local/nginx/html/pike
Spawning worker 0 with 559 pkgs
Spawning worker 1 with 559 pkgs
Spawning worker 2 with 558 pkgs
Spawning worker 3 with 558 pkgs
Workers Finished
Saving Primary metadata
Saving file lists metadata
Saving other metadata
Generating sqlite DBs
Sqlite DBs complete配置本地yum源
例如控制节点yum源配置
vim /etc/yum.repos.d/openstack.repo
代码语言：javascript复制[openstack]
name=openstack
baseurl=http://192.168.206.146/pike
enabled=1
gpgcheck=0192.168.206.146是之前同步的本地yum源的ip地址
yum makecache
其他节点一样。
