Test logic in puppet

gistfile1.txt

# install module into my home dir
% puppet module install puppetlabs/inifile
Notice: Preparing to install into /home/rip/.puppetlabs/etc/code/modules ...
Notice: Downloading from https://forgeapi.puppetlabs.com ...
Notice: Installing -- do not interrupt ...
/home/rip/.puppetlabs/etc/code/modules
└── puppetlabs-inifile (v1.5.0)

# grab a throw away php.ini
% cp /etc/php.ini ~

# test.pp
ini_setting { "sample setting":
  ensure  => present,
  path    => '/home/rip/php.ini',
  section => 'PHP',
  setting => 'memory_limit',
  value   => '512M',
}

# run the code
% puppet apply test.pp
Notice: Compiled catalog for dev2.devco.net in environment production in 0.06 seconds
Notice: /Stage[main]/Main/Ini_setting[sample setting]/value: value changed '[redacted sensitive information]' to '[redacted sensitive information]'
Notice: Applied catalog in 0.05 seconds

# check outcome
% grep ^memory php.ini
memory_limit = 512M