Array iteration with position in puppet - puppet

Question

I'm planning to implement the possibility to add multiple ssh keys per user.
For a single key, I used:
if ($sshkey) {
ssh_authorized_key { $resourcename:
ensure => 'present',
type => 'ssh-rsa',
key => '$sshkey',
user => $title,
require => User[$title],
}
}
For multiple keys, i thought that this might work:
if ($sshkeyarray != []) {
$sshkeyarray.each |String $singlesshkey| {
ssh_authorized_key { $resourcename:
ensure => 'present',
type => 'ssh-rsa',
key => '$singlesshkey',
user => $title,
require => User[$title],
}
}
}
But the resourcename can only be used once, so I want to give names like "resourcename_1" for the first ssh key and "resourcename_n" for the n-th key.
How can I do this? Can i get the position of the singlesshkey from the array and add it to the resourdcename?

Answer 1

As described in the docs here you can do this:
$sshkeyarray.each |$index, String $singlesshkey| {
ssh_authorized_key { "${resourcename}_${index}":
ensure => 'present',
type => 'ssh-rsa',
key => $singlesshkey,
user => $title,
require => User[$title],
}
}
Notice that there's no need to test for an empty array either. Looping over an empty array causes nothing to happen anyway.