configuration Fail2ban with Proftpd on Puppet

Question

• I want to change the variable "enabled" in jail.conf of Fail2ban according to the status of Proftpd on the agent machine.
• Ex: If on the agent machine, Proftpd is running, "enable = true" (Fail2ban will monitor Proftpd) If Proftpd is stopped, "enable = false" (Fail2ban won't monitor Proftpd)

• My init.pp file :

  class fail2ban { package { "fail2ban": ensure => "installed", }

  service { "fail2ban":
          ensure => "running",
          enable => "true",
          require => Package["fail2ban"],
  }
  $path = "/var/run/proftpd.pid"
  $status = inline_template("<% if File.exist?(@path) -%>true<% else -%>false<%end -%>")
  file { "jail.conf":
          path    => '/etc/fail2ban/jail.conf',
      ensure  => file,
      require => Package['fail2ban'],
      content => template("fail2ban/jail.conf.erb"),
  notify  => Service['fail2ban'],
  }
  

My template jail.conf.erb file:

[proftpd]
enabled  = <%= $status %>
port     = ftp,ftp-data,ftps,ftps-data
filter   = proftpd
logpath  = /var/log/proftpd/proftpd.log
maxretry = 5

The problem is that my "enabled" result is according to the check on Puppet Master, not the agent machine, while I need to do the check on the agent machine.

Can anyone help me ?