Puppet dynamic environments with extlookup

extlookup.pp

# Expect extlookup data to be parallel to manifest directory.
$extlookup_datadir      = inline_template("<%= File.join(File.dirname(scope.lookupvar('settings::manifest')), '..', 'extdata') -%>")
$extlookup_precedence   = ["%{fqdn}", "domain_%{domain}", "base"]

puppet.conf

[puppetmasterd]
    # Dynamic environments.
    manifest = $confdir/environments/$environment/manifests/site.pp
    modulepath = $confdir/environments/$environment/modules