From 654a496fbd163a0b33da3b7326e25da781e30e20 Mon Sep 17 00:00:00 2001
From: Eric Putnam <putnam.eric@gmail.com>
Date: Fri, 2 Mar 2018 09:44:36 -0800
Subject: [PATCH] (MODULES-6677) make sure event mpm is disabled

Currently, on Debian 9 specifically, the event mod may be enabled when trying to use a different mpm. This ensures event is disabled if another mpm is chosen. Also closes #1766
---
 manifests/mpm.pp | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/manifests/mpm.pp b/manifests/mpm.pp
index bc4b6f974e..5fdee33c0d 100644
--- a/manifests/mpm.pp
+++ b/manifests/mpm.pp
@@ -79,10 +79,20 @@
         $packagename = "apache2-mpm-${mpm}"
       }
 
+      $mod_enabled_dir = $::apache::mod_enable_dir
+
+      if $mpm == 'prefork' and ( $::operatingsystem == 'Debian' and versioncmp($::operatingsystemrelease, '9.0.0') >= 0 ) {
+        exec { '/usr/sbin/a2dismod mpm_event':
+          onlyif  => "/usr/bin/test -e ${mod_enabled_dir}/mpm_event.load",
+          require => Package['httpd'],
+          before  => Package[$packagename],
+        }
+      }
+
       if $mpm == 'itk' and ( ( $::operatingsystem == 'Ubuntu' and $::operatingsystemrelease == '14.04' ) or ($::operatingsystem == 'Debian' and versioncmp($::operatingsystemrelease, '9.0.0') >= 0 ) ) {
         # workaround https://bugs.launchpad.net/ubuntu/+source/mpm-itk/+bug/1286882
         exec { '/usr/sbin/a2dismod mpm_event':
-          onlyif  => '/usr/bin/test -e /etc/apache2/mods-enabled/mpm_event.load',
+          onlyif  => "/usr/bin/test -e ${mod_enabled_dir}/mpm_event.load",
           require => Package['httpd'],
           before  => Package[$packagename],
         }