Simple example of an "app" as it might look being managed by a non-root Puppet agent

non-root-app.pp

class app (
  $ensure = running,
) {

  file { '/tmp/example.txt':
    ensure  => present,
    content => "valuable words\n",
    mode    => '0644',
  }

  service { 'app':
    ensure  => $ensure,
    start   => '/bin/bash -c \'while true ; do echo -e "HTTP/1.1 200 OK\n\n ExampleApp $(date)" | nc -l 1500; done &\'',
    stop    => '/usr/bin/pkill -f ExampleApp',
    status  => '/usr/bin/pgrep -lf ExampleApp',
  }

}