Puppet DSL

• Snippets

 notify { 'message': loglevel => 'err' }

• Check for file

if file_exists('somefile.txt') == 1 { }

• Execute commands (evil!)

exec { "mkdir -p $dir":
    command => "/bin/mkdir -p $dir",
    creates => $dir
}

• Merging Arrays

 $result = split(inline_template("<%= (array1+array2).join(',') %>"),',')

• Exceptions

 fail('This is a parser time error')

• Conditions

 if $var == 'value' {
}

case $::lsbdistcodename {
    'squeeze': {
        }
        'wheezy', 'jessie': {
        }
        default {
        }
}