Puppet.md

pad number

$padded_prio = sprintf('%04d',$prio) # 4 -> 0004

path to file in repo in template

# <%=  __FILE__.gsub(/.*?modules\//,'puppet://modules/') %>

will result in "puppet-like" # puppet://modules/network/templates/ifcfg.erb, while

# <%=  __FILE__.gsub(/.*?modules\//,@fqdn + ':') %>

will result in # server.example.com:bird/templates/part.conf

Install package from certain distro

package {"sth":
    ensure => installed
    install_options => ' -t testing'
}

Coding

https://docs.puppet.com/guides/custom_types.html

Raise error from ruby

raise ArgumentError, "error breaking the run raise Puppet::Error, "different error type" scope.function_fail(["Rule #{@title}:#{i}: one of parameters resolves to empty list\n#{d}"])

Filter undef out of hash/array

• $hash.filter |$key, $val| { $val =~ NotUndef }
• $array.filter |$val| { $val =~ NotUndef }