sele 发表于 2015-11-26 14:50:00

Deploy Puppet on CentOS 5

Objectives
　　Deploy a Puppet Master and a Puppet Client on the two Cent OS 5. After the deployment, host "server.pcoe.com" should be the Puppet master and host "client.pcoe.com" should be the Puppet client.
Prerequisite
　　
　　1. Deploy CentOS with ISO installer.
2. Disable firewall during configuration.
3. Name the machines by FQDN (Full Qualified Domain Name).
4. Update OS to latest packages.
    # yum update
5. Add hostnames into hosts file on all the machines.
    # echo "xxx.xxx.xxx.xxx master.pcoe.com" >> /etc/hosts
　　
　　
Puppet
　　1. Download and install EPEL.
    URL: http://dl.fedoraproject.org/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm
    # rpm -Uvh /tmp/epel-release-5-4.noarch.rpm
2. Install puppet packages.
    # yum install puppet puppet-server facter   <-- on master
    # yum install puppet facter                        <-- on agent
3. Modify user puppet as root privilege on master.
    ** This is a workaround. To find the root cause of &quot;'initialize': Permission denied&quot; issue.
4. Change the owner of the folders to &quot;puppet&quot;.
    # chown puppet:puppet /var/lib/puppet
5. Start puppet master service.
    # puppet master --no-daemonize --verbose    OR
    # service puppetmaster start
6. Request certification from agent.
    # puppetd --test --server master.puppet.com --waitforcert 60

　　
　　
　　7. Sign the agent on master.
    # puppetca -s -a

　　
　　
　　8. Re-request certification on agent.
    # puppetd --test --server master.puppet.com --waitforcert 60

　　
　　
Validation
　　1. Create a site.pp on master.
    # vi /etc/puppet/manifests/site.pp

　　
　　
　　2. Run it on agent.
    # puppetd --test --server master.puppet.com

　　
　　
　　3. Check the result.
    # cat /tmp/test.txt

　　
　　
ISSUES
　　1. &quot;'initialize': Permission denied&quot; issue
    ? Phenomenon
    Permission denied issue when tried to start puppet master service.

　　
　　
　　    ? Analysis
    It caused by the user puppet has not sufficient access privilege on some directories when it tried to write on files.
    ? Solution
   
    Modify user puppet to root role.
   
    TO BE DONE.
2. &quot;Could not request certificate: Connection refused - connect (2)&quot; issue
    ? Phenomenon

　　
　　
　　    ? Analysis
    Puppet master service hasn't been started.
    ? Solution
    Waiting for untill puppet master service is started.

　　
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