CentOS7.2 创建本地YUM源和局域网YUM源

1背景

由于开发环境只有局域网，没法使用网上的各种YUM源，来回拷贝rpm包安装麻烦，还得解决依赖问题。

想着搭建个本地/局域网YUM源，方便自己跟同事安装软件。

2环境

[root@min-base ~]# cat /etc/redhat-release
CentOS Linux release 7.2. (Core) 

并且是Minimal Install。

3安装

3.1本地YUM源

3.1.1 ISO源

准备rpm包 

挂载CentOS-7-x86_64-Everything-1511.iso，把里面所有文件都拷贝到本地目录/yum/yum-iso

[root@min-base ~]# mkdir /mnt/yum-iso
[root@min-base ~]# mount /dev/cdrom /mnt/yum-iso/
mount: /dev/sr0 is write-protected, mounting read-only
[root@min-base ~]# mkdir /yum/
[root@min-base ~]# cp -a /mnt/yum-iso/ /yum/
[root@min-base ~]# ll /yum/
total
dr-xr-xr-x.  root root  Dec    yum-iso
[root@min-base ~]# ll /yum/yum-iso/
total
-r--r--r--.  root root      Dec    CentOS_BuildTag
dr-xr-xr-x.  root root      Dec    EFI
-r--r--r--.  root root     Dec    EULA
-r--r--r--.  root root   Dec    GPL
dr-xr-xr-x.  root root      Dec    images
dr-xr-xr-x.  root root    Dec    isolinux
dr-xr-xr-x.  root root      Dec    LiveOS
dr-xr-xr-x.  root root  Dec    Packages
dr-xr-xr-x.  root root    Dec    repodata
-r--r--r--.  root root    Dec    RPM-GPG-KEY-CentOS-
-r--r--r--.  root root    Dec    RPM-GPG-KEY-CentOS-Testing-
-r--r--r--.  root root    Dec    TRANS.TBL
[root@min-base ~]# 

备份、移除其他repo

[root@min-base ~]# cd /etc/yum.repos.d/
[root@min-base yum.repos.d]# ll
-rw-r--r--.  root root  Dec     CentOS-Base.repo
-rw-r--r--.  root root  Dec     CentOS-CR.repo
-rw-r--r--.  root root   Dec     CentOS-Debuginfo.repo
-rw-r--r--.  root root   Dec     CentOS-fasttrack.repo
-rw-r--r--.  root root   Dec     CentOS-Media.repo
-rw-r--r--.  root root  Dec     CentOS-Sources.repo
-rw-r--r--.  root root  Dec     CentOS-Vault.repo
[root@min-base yum.repos.d]# tar zcvf repo-bk.tar.gz CentOS-*
CentOS-Base.repo
CentOS-CR.repo
CentOS-Debuginfo.repo
CentOS-fasttrack.repo
CentOS-Media.repo
CentOS-Sources.repo
CentOS-Vault.repo
[root@min-base yum.repos.d]# rm -f CentOS-Base.repo CentOS-CR.repo CentOS-Debuginfo.repo CentOS-fasttrack.repo CentOS-Sources.repo CentOS-Vault.repo

配置本地repo

[root@min-base yum.repos.d]# vi CentOS-Media.repo

填入如下内容

[c7-media]
name=CentOS-$releasever - Media
baseurl=file:///yum/yum-iso/
gpgcheck=
enabled=
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

注释：配置repo路径、关闭gbp校验、启用这个repo

制作cache

[root@min-base yum.repos.d]# yum clean all
Loaded plugins: fastestmirror
Cleaning repos: c7-media
Cleaning up everything
Cleaning up list of fastest mirrors
[root@min-base yum.repos.d]# yum makecache
Loaded plugins: fastestmirror
c7-media                                                                                                         | 3.6 kB  ::
(/): c7-media/group_gz                                                                                         |  kB  ::
(/): c7-media/primary_db                                                                                       | 5.3 MB  ::
(/): c7-media/filelists_db                                                                                     | 6.2 MB  ::
(/): c7-media/other_db                                                                                         | 2.3 MB  ::
Determining fastest mirrors
Metadata Cache Created
[root@min-base yum.repos.d]# 

这样就可以使用yum安装软件啦

[root@min-base yum.repos.d]# yum groupinstall "Development tools"
Loaded plugins: fastestmirror
There is no installed groups file.
Maybe run: yum groups mark convert (see man yum)
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package autoconf.noarch :2.69-.el7 will be installed
--> Processing Dependency: perl >= 5.006 for package: autoconf-2.69-.el7.noarch
--> Processing Dependency: m4 >= 1.4. for package: autoconf-2.69-.el7.noarch
--> Processing Dependency: perl(warnings) for package: autoconf-2.69-.el7.noarch

或者

[root@min-base yum.repos.d]# yum install tree
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package tree.x86_64 :1.6.-.el7 will be installed
--> Finished Dependency Resolution

3.1.2 自定义YUM源

[root@min-base yum.repos.d]# yum -y install createrepo

准备rpm包

（需要自己确定依赖包）、目录。这里使用tree做演示。

[root@min-base ~]# mkdir -p /yum/yum-custom/packages
[root@min-base ~]# cp tree-1.6.-.el7.x86_64.rpm /yum/yum-custom/packages/

创建repo

[root@min-base ~]# createrepo -u -d  /yum/yum-custom/
Spawning worker  with  pkgs
Spawning worker  with  pkgs
Workers Finished
Saving Primary metadata
Saving file lists metadata
Saving other metadata
Generating sqlite DBs
Sqlite DBs complete
[root@min-base ~]# ll /yum/yum-custom/
total
drwxr-xr-x.  root root    Dec  : packages
drwxr-xr-x.  root root  Dec  : repodata
[root@min-base ~]# 

配置自定义repo

[root@min-base ~]# vi /etc/yum.repos.d/CentOS-Media.repo

填入如下内容

[c7-media]
name=CentOS-$releasever - Media
baseurl=file:///yum/yum-custom/
gpgcheck=
enabled=
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

制作cache

[root@min-base ~]# yum clean all
Loaded plugins: fastestmirror
Cleaning repos: c7-media
Cleaning up everything
Cleaning up list of fastest mirrors
[root@min-base ~]#
[root@min-base ~]# yum makecache
Loaded plugins: fastestmirror
c7-media                                                                                                         | 3.0 kB  ::
(/): c7-media/filelists_db                                                                                     |   B  ::
(/): c7-media/primary_db                                                                                       | 1.8 kB  ::
(/): c7-media/other_db                                                                                         | 1.3 kB  ::
Determining fastest mirrors
Metadata Cache Created
[root@min-base ~]# 

使用自定义repo

[root@min-base ~]# yum install tree
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package tree.x86_64 :1.6.-.el7 will be installed
--> Finished Dependency Resolution

3.2 局域网YUM源

局域网YUM源可以配成：本地YUM源 + FTP服务器

这里使用自定义源yum-custom（见上面） + VSFTP演示。

下载vsftpd

[root@min-base ~]# yum -y install vsftpd

配置vsftpd

编辑vsftp.conf

[root@min-base ~]# vi /etc/vsftpd/vsftpd.conf

并增加匿名用户root目录（默认已经启用匿名访问）

anon_root=/yum/

注意目录权限如下

[root@min-base ~]# ll -a /yum/
total
drwxr-xr-x.   root root    Dec  : .
dr-xr-xr-x.  root root  Dec  : ..
drwxr-xr-x.   root root    Dec  : yum-custom
dr-xr-xr-x.   root root  Dec    yum-iso

 关闭selinux

临时

[root@min-base ~]# setenforce 

或者，永久：

编辑config

[root@min-base ~]# vi /etc/selinux/config

设置

SELINUX=disabled

重启

[root@min-base ~]# reboot

启用vsftp

[root@min-base ~]# systemctl start vsftpd
[root@min-base ~]# systemctl enable vsftpd
Created symlink from /etc/systemd/system/multi-user.target.wants/vsftpd.service to /usr/lib/systemd/system/vsftpd.service.
[root@min-base ~]# 

局域网使用

局域网另外一台机器min-client，

配置repo

编辑repo

[root@min-client ~]# vim /etc/yum.repos.d/CentOS-Media.repo

内容如下

[c7-media]
name=CentOS-$releasever - Media
baseurl=ftp://192.168.118.133/yum-custom
gpgcheck=
enabled=
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

其中192.168.118.133为上面vsftp服务器地址

启用这个局域网的repo

[root@min-client ~]# yum clean all
Loaded plugins: fastestmirror
Cleaning repos: c7-media
Cleaning up everything
[root@min-client ~]# yum makecache
Loaded plugins: fastestmirror
c7-media                                                                                                         | 3.0 kB  :
(/): c7-media/filelists_db                                                                                     |   B  :
(/): c7-media/other_db                                                                                         | 1.3 kB  :
(/): c7-media/primary_db                                                                                       | 1.8 kB  :
Determining fastest mirrors
Metadata Cache Created
[root@min-client ~]# 

使用

[root@min-base ~]# yum -y install tree
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package tree.x86_64 :1.6.-.el7 will be installed
--> Finished Dependency Resolution

目前差不多这些就够用了。以后有时间把163的YUM源爬下来，当本地源用。