1. Enable base repo for yum

   [root xenserver ~]# vi /etc/yum.repos.d/CentOS-Base.repo
   ...
   [base]
   ...
   enabled=1
   

   [root xenserver ~]# rpm -Uvh http://dl.fedoraproject.org/pub/epel/5/i386/epel-release-5-4.noarch.rpm
   

2. Install Puppet

   [root xenserver ~]#  yum install -y puppet
   

3. Enable Service

   [root xenserver ~]# chkconfig puppet on
   

4. If your master is not called puppet, set it in your conf file

   [root xenserver ~]# vi /etc/puppet/puppet.conf 
   [agent]
   server = puppet-master.h8n.lan
   ...
   

5. Start your puppet service.

   [root xenserver ~]# /etc/init.d/puppet start
   Starting puppet agent:                                     [  OK  ]
   

6. Now goto your puppet master so you can accept the cert of the new client.

   root puppet-master:~# puppet cert list
     "xenserver" (SHA256) C6:68:BD:94:6D:1A:19:AB:38:3E:AD:EC:33:3D:B4:E0:5D:02:B6:C9:76:16:BE:C3:81:A3:9F:6D:A0:51:BD:DC
   

   root puppet-master:~# puppet cert sign xenserver
   Notice: Signed certificate request for xenserver
   Notice: Removing file Puppet::SSL::CertificateRequest xenserver at '/var/lib/puppet/ssl/ca/requests/xenserver.pem'
   

1. Download the Puppet Labs package

   user puppet-agent:# cd ~; wget https://apt.puppetlabs.com/puppetlabs-release-trusty.deb
   

2. Install the Puppet Labs package

   user puppet-agent:# sudo dpkg -i puppetlabs-release-trusty.deb
   

3. Update apt’s available packages

   user puppet-agent:# sudo apt-get update
   

4. Install the Puppet Agent package

   user puppet-agent:# sudo apt-get install puppet
   

5. Modify puppet default file.

   user puppet-agent:# sudo vi /etc/default/puppet
   

   1. Enable the Puppet Agent by changing START from “no” to “yes”

      START=yes
      

6. Modify puppet.conf

   user puppet-agent:# sudo vi /etc/puppet/puppet.conf
   

   1. Delete the templatedir line and the [master] section from puppet.conf

      sudo vi /etc/puppet/puppet.conf
      

   2. Tell your agent where it’s master is. This step is not required if your master is called puppet, but this will only happen wiht micro networks.

      [agent]
      server = puppet-master.my.lan
      

7. Start the puppet agent

   user puppet-agent:# sudo service puppet start
   

8. Now goto your puppet master so you can accept the cert of the new client.

   root puppet-master:# puppet cert list
   "puppet-agent" (SHA256) XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX
   

   root puppet-master:# puppet cert sign puppet-agent
   Notice: Signed certificate request for puppet-agent
   Notice: Removing file Puppet::SSL::CertificateRequest puppet-agent at '/var/lib/puppet/ssl/ca/requests/puppet-agent.pem'
   

Source