Changes between Initial Version and Version 1 of puppet_notes_12_11_2010

Timestamp:

Dec 16, 2010, 1:31:24 AM (15 years ago)

Author:

Ross

Comment:

--

puppet_notes_12_11_2010

@@ +1 @@
+* Puppet Overview
+
+** Puppet Master
+
+Most configuration files reside on the master host. 
+
+*** File structure
+
+**** /etc/puppet
+
+{{{
+0 betelgeuse:/etc/puppet# ls -l
+total 44
+-rw-r--r--   1 root root 2479 2010-09-02 20:12 auth.conf
+drwxr-xr-x   4 root root 4096 2009-11-14 16:40 files
+-rw-r--r--   1 root root  364 2010-09-02 20:12 fileserver.conf
+drwxr-xr-x   5 root root 4096 2010-09-02 20:12 manifests
+drwxr-xr-x 136 root root 4096 2010-09-04 20:52 modules
+drwxr-xr-x   2 root root 4096 2010-08-31 23:17 notes
+drwxr-xr-x   6 root root 4096 2009-12-23 23:36 old_modules
+-rw-r--r--   1 root root  414 2010-08-08 20:34 puppet.conf
+-rw-r--r--   1 root root  162 2010-04-26 16:02 puppet.conf.dpkg-dist
+drwxr-x--x   7 root root 4096 2009-06-28 20:11 ssl
+drwxr-xr-x   2 root root 4096 2010-06-25 16:11 templates
+0 betelgeuse:/etc/puppet# 
+}}}
+
+**** common.pp
+
+This file determines what to do with given domains.
+
+0 betelgeuse:/etc/puppet/manifests# less common.pp 
+
+# make sure all modules are available for use
+
+{{{
+import "modules.pp"
+
+
+# 2009-10-13 - greg - Empty base node for all nodes to inherit.
+
+# Anything that all nodes should have will go here.
+
+node base {
+}
+}}}
+
+*What to do with specified domains.*
+{{{
+case $domain {
+#  "mayfirst.org": { import "mfpl/*" } 
+  "tachanka.org": { import "tachanka/nodes.pp" }
+#  "rat.burntout.org": { import "rat.burntout/*" }
+}
+}}}
+
+This is a programming language that helps define the state of a given
+machine.
+
+**** /etc/puppet/manifest
+
+Manifest is the directory where the basic node configurations get
+stored.  Manifests are all specific to the particular configuration.
+
+Create directories for each node type that will configure each node of
+this type.
+
+***** ../manifest/mfpl/root.bashrc.pp
+{{{
+#+BEGIN_CODE
+0 betelgeuse:/etc/puppet/manifests/mfpl# less root.bashrc.pp                              
+class root_bashrc {                                                                       
+  file { "/root/.bashrc":                                                                 
+    owner => "root",                                                                      
+    group => "root",                                                                      
+    mode => 644,                                                                          
+    source => "puppet://betelgeuse.redetoile.net/files/mfpl/root.bashrc",                 
+    ensure => present,                                                                    
+  }                                                                                       
+}           
+}}}
+
+The puppet master offers a library of files to choose from.  Above
+says, define the class root_bashrc and say that .bashrc should be read
+from the source.  
+
+Files must end with '.pp'.  
+
+***** analyze-server.pp
+
+{{{
+class analyze_server {                                                                    
+  $packagelist = [ "cron", "logrotate" ]                                                  
+  package {                                                                               
+    $packagelist:                                                                         
+      ensure => installed                                                                 
+  }                                                                                       
+  file {                                                                                  
+    "/var/log/cpu-by-user":                                                               
+      owner => "nobody",                                                                  
+      group => "nogroup",                                                                 
+      ensure => present,                                                                  
+  }                                                                                       
+  file {                                                                                  
+    "/etc/cron.d/mf-log-cpu-by-user":                                                     
+      owner => "root",                                                                    
+      group => "root",                                                                    
+      mode => 644,                                                                        
+      source => "puppet://betelgeuse.redetoile.net/files/mfpl/analyze-server/cron.d/mf-log
+-cpu-by-user",                                                                            
+      ensure => present,
+  }
+  file {
+    "/etc/logrotate.d/mf-log-cpu-by-user":
+
+}}}
+
+This file "not complete above" shows the general server analysis
+structure.
+
+
+**** Modules
+
+Puppet modules are specific types of actions that puppet can take.
+This is basically the api layer of puppet that can make generic
+installations. 
+
+***** Add on modules
+
+Apparently leftist hackers around the world have created a bunch of
+modules for using puppet.  
+
+** puppet
+
+On this server, the only real configuration issue is whether or not to
+communicate with the master.
+
+*** file structure
+{{{
+0 bernice:/etc/puppet# ls
+files  puppet.conf  puppet.conf~
+0 bernice:/etc/puppet# ls -l
+total 12
+drwxr-xr-x 2 root root 4096 2009-01-07 20:17 files
+-rw-r--r-- 1 root root  234 2009-12-15 00:25 puppet.conf
+-rw-r--r-- 1 root root  202 2009-01-05 20:26 puppet.conf~
+0 bernice:/etc/puppet# less puppet.conf
+[main]
+logdir=/var/log/puppet
+vardir=/var/lib/puppet
+ssldir=/var/lib/puppet/ssl
+rundir=/var/run/puppet
+factpath=$vardir/lib/facter
+pluginsync=true
+server=betelgeuse.redetoile.net
+
+[puppetmasterd]
+templatedir=/var/lib/puppet/templates
+}}}