安装Puppet前期的准备工作
最后更新于：2022-04-01 02:26:53
#### Puppet基础篇3-安装Puppet前期的准备工作
# 工欲善其事必先利其器
在安装Puppet之前是需要做很多预备工作的，比如网络地址规范、主机名、certname名、时间等等，也只有这些准备好了，才不至于在安装好puppet之后发现问题而后悔莫及。**说明：**接下来的整套文档体系都是以本篇文档规范方案进行设计和扩充的，同样也是也是按照准生产的标准进行编写。
### 一、网络地址规范
~~~
【HOSTNAME】 【IP】 【certname】 【operatingsystem】
puppetmaster.kisspuppet.com 192.168.100.110/24 puppetmaster_cert.kisspuppet.com RHEL6.4
agent1.kisspuppet.com 192.168.100.111/24 agent1_cert.kisspuppet.com RHEL5.7
agent2.kisspuppet.com 192.168.100.112/24 agent2_cert.kisspuppet.com RHEL5.8
agent3.kisspuppet.com 192.168.100.123/24 agent3_cert.kisspuppet.com RHEL6.4
~~~
**注：**192.168.100.*/24的网关为192.168.100.110 所有服务器的DNS1为192.168.100.110
**1、设置主机名**
~~~
[root@puppetmaster ~]# vim /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=puppetmaster.kisspuppet.com
[root@agent1 ~]# vim /etc/sysconfig/network
NETWORKING=yes
NETWORKING_IPV6=no
HOSTNAME=agent1.kisspuppet.com
~~~
**注：**agent2~agent3同上
**2、设置IP地址**
可通过`system-config-network`命令进行配置好后在进入配置文件进行修改
~~~
[root@puppetmaster ~]# vim /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=none
IPADDR=192.168.100.110
NETMASK=255.255.255.0
GATEWAY=192.168.100.110
DNS1=192.168.100.110
IPV6INIT=no
USERCTL=no
~~~
**注：**node1~node3同上
**3、关闭NetworkManager服务**
NetworkManager服务是RHEL图形界面管理网卡的服务，由于其开启会对网络造成影响，RHEL6默认是开启的，建议关闭。
~~~
[root@puppetmaster ~]# /etc/init.d/NetworkManager stop
Stopping NetworkManager daemon: [ OK ]
[root@puppetmaster ~]# chkconfig NetworkManager off
~~~
**注：**node1~node3同上
**4、关闭防火墙**
本实验主要是为了测试整个架构的功能，如果要测试防火墙，请另行解决。
~~~
[root@puppetmaster ~]# /etc/init.d/iptables stop
iptables: Flushing firewall rules: [ OK ]
iptables: Setting chains to policy ACCEPT: filter [ OK ]
iptables: Unloading modules: [ OK ]
[root@puppetmaster ~]# chkconfig iptables off
~~~
**注：**node1~node3同上
**5、关闭selinux**
~~~
[root@puppetmaster ~]# sed -i 's/SELINUX=.*/SELINUX=disabled/g' /etc/selinux/config
~~~
**注：**node1~node3同上
**6、设置key**为了操作方便，设置公钥私钥，可通过puppetmaster端统一部署
~~~
[root@puppetmaster ~]# ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
ff:55:8d:31:34:b4:b3:6a:70:3b:aa:09:76:12:5b:8d root@puppetmaster.kisspuppet.com
The key's randomart image is:
+--[ RSA 2048]----+
| .+ |
| . o |
| = |
| o *.|
| . E o . o o|
| + . o o . |
| = . . = . |
| . + . + o |
| o.. . |
+-----------------+
[root@puppetmaster ~]# for i in {1..3}; do ssh-copy-id -i 192.168.100.11$i; done
The authenticity of host '192.168.100.111 (192.168.100.111)' can't be established.
RSA key fingerprint is ae:db:c5:0c:0e:3f:8c:62:ea:a1:26:e2:09:63:18:32.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.100.111' (RSA) to the list of known hosts.
root@192.168.100.111's password:
Now try logging into the machine, with "ssh '192.168.100.111'", and check in:
.ssh/authorized_keys
to make sure we haven't added extra keys that you weren't expecting.
...
~~~
**7、设置hosts文件**
puppet通信的前提是agent和master必须能够互相解析主机名。当然，也可以设置DNS，在第四部分搭建kermit架构的时候会搭建DNS服务，现在先暂时通过hosts文件进行解析，可先设置好puppetmaster后，统一copy到所有节点上
~~~
[root@puppetmaster ~]# vim /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.100.110 puppetmaster.kisspuppet.com puppetmaster
192.168.100.111 agent1.kisspuppet.com agent1
192.168.100.112 agent2.kisspuppet.com agent2
192.168.100.113 agent3.kisspuppet.com agent3
[root@puppetmaster ~]# for i in {1..3}; do scp /etc/hosts 192.168.100.11$i:/etc/; done
hosts 100% 354 0.4KB/s 00:00
hosts 100% 354 0.4KB/s 00:00
hosts 100% 354 0.4KB/s 00:00
[root@agent1 ~]# ping puppetmaster.kisspuppet.com #设置完成之后记得测试下
PING puppetmaster.kisspuppet.com (192.168.100.110) 56(84) bytes of data.
64 bytes from puppetmaster.kisspuppet.com (192.168.100.110): icmp_seq=1 ttl=64 time=0.327 ms
64 bytes from puppetmaster.kisspuppet.com (192.168.100.110): icmp_seq=2 ttl=64 time=0.996 ms
64 bytes from puppetmaster.kisspuppet.com (192.168.100.110): icmp_seq=3 ttl=64 time=1.00 ms
--- puppetmaster.kisspuppet.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 0.327/0.774/1.000/0.317 ms
~~~
**注意：**设置完网络后，可以通过类似**Xshell**这样的工具进行登录，方便操作
**二、配置本地光盘yum源**
由于我这边是vmware虚拟机操作，所以光盘是可以直接挂载到某一个目录里面，如果是物理机，建议将光盘里的文件全部copy到指定的一个目录里面，然后beaeurl指向它既可。
~~~
[root@puppetmaster ~]# mkdir /media/cdrom
[root@puppetmaster ~]# mount /dev/cdrom /media/cdrom/
mount: block device /dev/sr0 is write-protected, mounting read-only
[root@puppetmaster ~]# cp /etc/yum.repos.d/rhel-source.repo /etc/yum.repos.d/rhel-base.repo
[root@puppetmaster ~]# vim /etc/yum.repos.d/rhel-base.repo
[rhel-base]
name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=file:///media/cdrom
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
[root@puppetmaster ~]# yum clean all
Loaded plugins: product-id, refresh-packagekit, security, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Cleaning repos: rhel-base
Cleaning up Everything
[root@puppetmaster ~]# yum install tree lrzsz #测试
Loaded plugins: product-id, refresh-packagekit, security, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
rhel-base | 3.9 kB 00:00 ...
rhel-base/primary_db | 3.1 MB 00:01 ...
Setting up Install Process
Resolving Dependencies
...
~~~
**注：**node1~node3同上
**说明：**RHEL5的report在Server目录，所以在配置repo文件的时候参数 `baseurl=file:///media/cdrom/Server`
### 三、设置NTP服务器
**1、配置NTP服务器**设置ntp服务器和本地进行同步，当然如果联网也可以和外部服务器同步，这里只需要保证所有服务器时间一致。原因是因为，puppetmaster和agent之间时间相差不得超过10分钟（好像是），而后期配置的mcollecitve服务端和客户端之间不能相差60秒
~~~
[root@puppetmaster ~]# rpm -qa | grep ntp
fontpackages-filesystem-1.41-1.1.el6.noarch
ntpdate-4.2.4p8-3.el6.x86_64 #默认已经安装
ntp-4.2.4p8-3.el6.x86_64 #默认已经安装
[root@puppetmaster ~]# cp /etc/ntp.conf{,.bak}
[root@puppetmaster ~]# vim /etc/ntp.conf
driftfile /var/lib/ntp/drift
logfile /var/log/ntp.log
Broadcastdelay 0.008
restrict default kod nomodify notrap nopeer noquery
restrict -6 default kod nomodify notrap nopeer noquery
restrict default ignore
restrict 127.0.0.1
restrict -6 ::1
restrict 192.168.100.0 mask 255.255.255.0 notrap nomodify
server 127.127.1.0 # local clock
fudge 127.127.1.0 stratum 10 refid NIST
includefile /etc/ntp/crypto/pw
keys /etc/ntp/keys
[root@puppetmaster ~]# /etc/init.d/ntpd start
Starting ntpd: [ OK ]
[root@puppetmaster ~]# chkconfig ntpd on
~~~
**2、节点测试并设置crontab**
~~~
[root@agent1 ~]# ntpdate puppetmaster.kisspuppet.com
7 Mar 06:08:30 ntpdate[16411]: adjust time server 192.168.100.110 offset 0.049448 sec
[root@agent1 ~]# crontab -l #可通过croutab -e命令设置
*/30 * * * * /usr/sbin/ntpdate puppetmaster.kisspuppet.com >>/root/ntdate.log 2>&1 && /sbin/clock --systohc
[root@agent1 ~]# /etc/init.d/crond reload
Reloading cron daemon configuration: [ OK ]
~~~
### 四、制作本地yum仓库
本实验大部分包来自于[http://yum.puppetlabs.com](http://yum.puppetlabs.com)，部分包来自于EPEL和Gems官网，rabbitmq官方等，关于如何制作yum仓库，之前有文章写道[http://kisspuppet.com/2014/01/26/puppet_create_repo/](http://kisspuppet.com/2014/01/26/puppet_create_repo/)，这里在简单操作一下
~~~
[root@puppetmaster RHEL6U4]# yum install createrepo #安装制作软件包的软件
[root@puppetmaster RHEL6U4]# createrepo . #将本目录以及子目录下所有rpm包生产repodata
Spawning worker 0 with 105 pkgs
Workers Finished
Gathering worker results
Saving Primary metadata
Saving file lists metadata
Saving other metadata
Generating sqlite DBs
Sqlite DBs complete
~~~
**注：**RHEL5的repodata必须在RHEL5环境下运行createrpo命令生成
### 五、配置FTP服务器
**1、安装并配置FTP服务器**
搭建FTP服务器的目的只要是为自定义yum仓库做准备
~~~
[root@puppetmaster ~]# yum install vsftpd
Loaded plugins: product-id, refresh-packagekit, security, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
rhel-base | 3.9 kB 00:00 ...
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package vsftpd.x86_64 0:2.2.2-11.el6 will be installed
--> Finished Dependency Resolution
...
[root@puppetmaster ~]# cp /etc/vsftpd/vsftpd.conf{,.bak}
[root@puppetmaster ~]# vim /etc/vsftpd/vsftpd.conf
anonymous_enable=YES
local_enable=YES
write_enable=YES
local_umask=022
anon_upload_enable=YES
anon_root=/puppet #匿名访问的目录
anon_mkdir_write_enable=YES
anon_other_write_enable=YES
dirmessage_enable=YES
xferlog_enable=YES
connect_from_port_20=YES
xferlog_file=/var/log/xferlog
xferlog_std_format=YES
listen=YES
pam_service_name=vsftpd
userlist_enable=YES
tcp_wrappers=YES
[root@puppetmaster ~]# /etc/init.d/vsftpd start
Starting vsftpd for vsftpd: [ OK ]
[root@puppetmaster ~]# chkconfig vsftpd on
~~~
**2、在FTP共享目录里制作yum仓库**
将生成好的yum源copy到FTP共享目录中
~~~
[root@puppetmaster ~]# ll /puppet/
total 12
drwxr-xr-x 4 root root 4096 Mar 7 06:21 RHEL5U7
drwxr-xr-x 4 root root 4096 Mar 7 06:21 RHEL5U8
drwxr-xr-x 6 root root 4096 Mar 7 06:21 RHEL6U4
[root@puppetmaster ~]# ll /puppet/RHEL6U4/
total 16600
-rw-r--r-- 1 root root 87643 Mar 7 06:21 facter-1.7.3-1.el5.x86_64.rpm
-rw-r--r-- 1 root root 87440 Mar 7 06:21 facter-1.7.3-1.el6.x86_64.rpm
drwxr-xr-x 2 root root 4096 Mar 7 06:21 gem
-rw-r--r-- 1 root root 634944 Mar 7 06:21 GeoIP-1.4.8-1.el6.x86_64.rpm
-rw-r--r-- 1 root root 151654 Mar 7 06:21 keepalived-1.2.7-1.1.x86_64.rpm
-rw-r--r-- 1 root root 10924 Mar 7 06:21 mcollective-2.2.4-1.el6.noarch.rpm
-rw-r--r-- 1 root root 24596 Mar 7 06:21 mcollective-client-2.2.4-1.el6.noarch.rpm
-rw-r--r-- 1 root root 759300 Mar 7 06:21 mcollective-common-2.2.4-1.el6.noarch.rpm
drwxr-xr-x 3 root root 4096 Mar 7 06:21 mcollective-plugins
drwxr-xr-x 2 root root 4096 Mar 7 06:21 mq
-rw-r--r-- 1 root root 406588 Mar 7 06:21 nginx-1.0.15-5.el6.x86_64.rpm
-rw-r--r-- 1 root root 1128352 Mar 7 06:21 puppet-2.7.23-1.el6.noarch.rpm
-rw-r--r-- 1 root root 4509032 Mar 7 06:21 puppet-dashboard-1.2.23-1.el6.noarch.rpm
-rw-r--r-- 1 root root 25596 Mar 7 06:21 puppet-server-2.7.23-1.el6.noarch.rpm
-rw-r--r-- 1 root root 3729988 Mar 7 06:21 rabbitmq-server-3.1.5-1.el6.noarch.rpm
drwxr-xr-x 2 root root 4096 Mar 7 06:21 repodata
...
~~~
### 六、配置远程yum仓库
~~~
[root@puppetmaster ~]# vim /etc/yum.repos.d/rhel-puppet.repo
[rhel-puppet]
name=puppetlabs epel gems for rhel
baseurl=ftp://puppetmaster.kisspuppet.com/RHEL6U4 #指向FTP服务器地址
enabled=1
gpgcheck=0
[root@puppetmaster ~]# yum list | grep puppet-server #测试
puppet-server.noarch 2.7.25-1.el6 rhel-puppet
~~~
**注：**node1~node3同上
### 七、重要软件版本选型
目前puppet最成熟的版本为2.7.和3.3版本，两个版本都可以，本实验采用2.7版本。
~~~
puppet-server 2.7.25-1 来自puppetlabs
puppet 2.7.25-1 来自puppetlabs
facter 1.7.5 来自puppetlabs
puppet-dashboar 1.2.23 来自puppetlabs
ruby 1.8.* 系统自带
mcollective 2.2.4 来自puppetlabs
activemq 5.5.0 来自puppetlabs
rabbitmq-server 3.1.5 来自rabbitmq官网
kermit-webui 1.2-1 来自kermit官网
...
~~~