1) Ensure service is always running
node “UT-9c8e99e3959e”{
service { “cron”:
enable => true,
ensure => “running”,
}
}
Example:
generic@UT-9c8e99e3959e:~$ sudo service cron status
cron stop/waiting
generic@UT-9c8e99e3959e:~$ sudo puppet agent –test
info: Caching catalog for ut-9c8e99e3959e
info: Applying configuration version ‘1362528911’
notice: /Stage[main]//Node[ut-9c8e99e3959e]/Service[cron]/ensure: ensure changed ‘stopped’ to ‘running’
notice: Finished catalog run in 0.07 seconds
generic@UT-9c8e99e3959e:~$ sudo service cron status
cron start/running, process 31447
2) Ensure service is always stopped
node “UT-9c8e99e3959e”{
service { “cron”:
enable => false,
ensure => “stopped”,
}
}
Example:
generic@UT-9c8e99e3959e:~$ initctl show-config cron
cron
start on runlevel [2345]
stop on runlevel [!2345]
generic@UT-9c8e99e3959e:~$ service cron status
cron start/running, process 5639
generic@UT-9c8e99e3959e:~$ sudo puppet agent –test
info: Caching catalog for ut-9c8e99e3959e
info: Applying configuration version ‘1362538327’
notice: /Stage[main]//Node[ut-9c8e99e3959e]/Service[cron]/ensure: ensure changed ‘running’ to ‘stopped’
notice: Finished catalog run in 0.16 seconds
generic@UT-9c8e99e3959e:~$ initctl show-config cron
cron
stop on runlevel [!2345]
generic@UT-9c8e99e3959e:~$ service cron status
cron stop/waiting
3) Restart service when configuration file changes
node “UT-9c8e99e3959e”{
# define apache service
service { “apache2”:
ensure => “running”,
enable => “true”,
}
# Notify apache if the config file changes
file { “/etc/apache2/sites-available/default”:
notify => Service[“apache2”],
mode => 644,
owner => “root”,
group => “root”,
source => “puppet:///files/default”,
backup => “main”,
}
}
Example:
generic@UT-9c8e99e3959e:~$ sudo puppet agent –test
info: Caching catalog for ut-9c8e99e3959e
info: Applying configuration version ‘1362541114’
notice: /Stage[main]//Node[ut-9c8e99e3959e]/File[/etc/apache2/sites-available/default]/content:
— /etc/apache2/sites-available/default2013-03-06 15:13:11.974074555 +1100
+++ /tmp/puppet-file20130306-29247-1uo1l0x-02013-03-06 15:19:23.782082747 +1100
@@ -30,3 +30,10 @@
CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>
+<VirtualHost *:8080>
+ <Directory “/tmp”>
+ Order allow,deny
+ Allow from all
+ </Directory>
+</VirtualHost>
+
info: /Stage[main]//Node[ut-9c8e99e3959e]/File[/etc/apache2/sites-available/default]: Filebucketed /etc/apache2/sites-available/default to main with sum 1dd3f5bf7e4bd9734074e7f4bb4efa65
notice: /Stage[main]//Node[ut-9c8e99e3959e]/File[/etc/apache2/sites-available/default]/content: content changed ‘{md5}1dd3f5bf7e4bd9734074e7f4bb4efa65’ to ‘{md5}861b9ecffc31b92b0b6975a9aaf85ced’
info: /Stage[main]//Node[ut-9c8e99e3959e]/File[/etc/apache2/sites-available/default]: Scheduling refresh of Service[apache2]
notice: /Stage[main]//Node[ut-9c8e99e3959e]/Service[apache2]: Triggered ‘refresh’ from 1 events
notice: Finished catalog run in 426.88 seconds
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