add parameter manage_user

which defines if user and group should be managed by this module. This gives
you the possibility to manage the user and group with another module or
manually.

The default value is set to true so it doesn't change the existent behaviour
of this module.

manifests/config.pp

@@ -5,19 +5,22 @@
   $config_dir_purge = $::icingaweb2::config_dir_purge,
   $web_root         = $::icingaweb2::web_root,
 ) {
-  @user { 'icingaweb2':
-    ensure     => present,
-    home       => $::icingaweb2::web_root,
-    managehome => true,
-  }
 
-  @group { 'icingaweb2':
-    ensure => present,
-    system => true,
-  }
+  if $::icingaweb2::manage_user {
+    @user { 'icingaweb2':
+      ensure     => present,
+      home       => $::icingaweb2::web_root,
+      managehome => true,
+    }
 
-  realize(User['icingaweb2'])
-  realize(Group['icingaweb2'])
+    @group { 'icingaweb2':
+      ensure => present,
+      system => true,
+    }
+
+    realize(User['icingaweb2'])
+    realize(Group['icingaweb2'])
+  }
 
   File {
     require => Class['::icingaweb2::install'],

manifests/init.pp

@@ -89,6 +89,11 @@
 # $manage_repo::          Add a custom package repository.
 #                         Default: false.
 #
+# $manage_user::          Defines if user and group should be managed
+#                         by this module. Set to false if you don't want
+#                         user and group to be managed by this module.
+#                         Default: true.
+#
 # $pkg_deps::             Any dependencies that need to be resolved before
 #                         installing the main package.
 #                         Default: operating system specific.
@@ -195,6 +200,7 @@
   $log_store                         = $::icingaweb2::params::log_store,
   $manage_apache_vhost               = $::icingaweb2::params::manage_apache_vhost,
   $manage_repo                       = $::icingaweb2::params::manage_repo,
+  $manage_user                       = $::icingaweb2::params::manage_user,
   $pkg_deps                          = $::icingaweb2::params::pkg_deps,
   $pkg_ensure                        = $::icingaweb2::params::pkg_ensure,
   $pkg_list                          = $::icingaweb2::params::pkg_list,
@@ -233,6 +239,7 @@
   validate_array($pkg_list)
   validate_bool($config_dir_recurse)
   validate_bool($manage_repo)
+  validate_bool($manage_user)
   validate_bool($initialize)
   validate_slength($config_dir_mode, 4)
   validate_slength($config_file_mode, 4)

manifests/params.pp

@@ -7,6 +7,7 @@
   $install_method      = 'git'
   $manage_apache_vhost = false
   $manage_repo         = false
+  $manage_user         = true
 
   # Template variables
   $admin_permissions = '*'

spec/classes/icingaweb2_spec.rb

@@ -392,6 +392,22 @@
     end
   end
 
+  describe 'icingaweb2::manage_user' do
+    context 'with manage_user => true' do
+      let (:params) { { :manage_user => true } }
+
+      it { should contain_user('icingaweb2') }
+      it { should contain_group('icingaweb2') }
+    end
+
+    context 'with manage_user => false' do
+      let (:params) { { :manage_user => false } }
+
+      it { should_not contain_user('icingaweb2') }
+      it { should_not contain_group('icingaweb2') }
+    end
+  end
+
   describe 'with parameter: pkg_ensure' do
     let (:params) {
       {