Puppet, from Puppet Labs, is a configuration management tool that helps system administrators automate the provisioning, configuration, and management of a server infrastructure.It is written in Ruby.
Puppet has been build with 2 modes:
1) Client Server Mode : Central Server & Agents running on Separate Nodes.
2) Serverless Mode : Single process does all the work.
Puppet Master and Agent
Puppet Master server, where all of your configuration data will be managed and distributed from, and all your remaining servers will be Puppet Agent nodes, which can be configured by the puppet master server. Default port is 8140.
(°0°)
Puppet Configuration
puppet master –genconfig » /etc/puppet/puppet.conf
manifests/site.pp
namespaceauth.conf – kick
auth.conf – ACL
autosign.conf
fileserver.conf
[main]
server = master.file
autoflush = fals # flush log
logdir = /var/log/puppet
rundir = /var/run/puppet
[master]
reportdir = /var/lib/puppet/reports
autosign = true
autosign = /etc/puppet/autosign.conf
bindaddress = 0.0.0.0
masterport = 8140
evaltrace = true
[agent]
certname = slave1.file
daemonize = true
allow_duplicate_certs = true
report = true
reports = store, http
report_server = master.file
report_port = 8140
reporturl = http://localhost:3000/reports/upload
runinterval = 20m
splay = true
splaylimit = 10m
configtimeout = 2m
color = ansi
ignorecache = true
Puppet Command
apply，agent，master，cert，describe，module，kick(master push)
puppet master –genconfig
puppet agent –noop
puppet agent –test
puppet apply -l /tmp/init.pp init.pp – will not connect master
puppet cert list
puppet cert sign agent.domain.com
puppet cert list –all
puppet cert sign –all
path
/var/log/puppet contains logs (but also on normal syslog files, with facility daemon), both for agents and master
/var/lib/puppet contains Puppet operational data (catalog, certs, backup of files…)
/var/lib/puppet/ssl contains SSL certificate
/var/lib/puppet/clientbucket contains backup copies of the files changed by Puppet
/etc/puppet/manifests/site.pp (On Master) The first manifest that the master parses when a client connects in order to produce the configuration to apply to it (Default on Puppet < 3.6 where are used config-file environments)
/etc/puppet/environments/production/manifests/site.pp (On Master) The first manifest that the master parses when using directory environments (recommended from Puppet 3.6 and default on Puppt >= 4)
/etc/puppet/modules and /usr/share/puppet/modules (On Master) The default directories where modules are searched
/etc/puppet/environments/production/modules (On Master) An extra place where modules are looked for when using directory environments
Prerequisties
Private Network DNS
Firewall Open Ports
NTP –clock should be same
modules
refer