diff --git a/README.md b/README.md
index 8ea2465e6..060f22bb5 100644
--- a/README.md
+++ b/README.md
@@ -1181,6 +1181,10 @@ OpenTSDB host address. Icinga defaults to `127.0.0.1`
 ##### `port`
 OpenTSDB port. Icinga defaults to `4242`
 
+##### `enable_ha`
+Enable the high availability functionality. Only valid in a cluster setup. Icinga defaults to false.
+
+
 #### Class: `icinga2::feature::perfdata`
 Enables or disables the `perfdata` feature.
 
@@ -1219,6 +1223,10 @@ Service Format template for the performance data file. Icinga defaults to a temp
 Rotation interval for the files specified in `{host,service}_perfdata_path`. Can be written in minutes or seconds,
 i.e. `1m` or `15s`. Icinga defaults to `30s`
 
+##### `enable_ha`
+Enable the high availability functionality. Only valid in a cluster setup. Icinga defaults to false.
+
+
 #### Class: `icinga2::feature::statusdata`
 Enables or disables the `statusdata` feature. The feature is deprecated and will be removed in Icinga 2 2.11.0.
 
@@ -1341,6 +1349,9 @@ How long to buffer data points before transferring to Elasticsearch. Icinga defa
 ##### `flush_threshold`
 How many data points to buffer before forcing a transfer to Elasticsearch. Icinga defaults to `1024`
 
+##### `enable_ha`
+Enable the high availability functionality. Only valid in a cluster setup. Icinga defaults to false.
+
 
 #### Class: `icinga2::feature::gelf`
 Enables or disables the `gelf` feature.
@@ -1362,6 +1373,10 @@ Source name for this instance. Icinga defaults to `icinga2`
 ##### `enable_send_perfdata`
 Enable performance data for *CHECK RESULT* events. Icinga defaults to `false`.
 
+##### `enable_ha`
+Enable the high availability functionality. Only valid in a cluster setup. Icinga defaults to false.
+
+
 #### Class: `icinga2::feature::influxdb`
 Enables or disables the `influxdb` feature.
 
@@ -1435,6 +1450,9 @@ How long to buffer data points before transferring to InfluxDB. Icinga defaults
 ##### `flush_threshold`
 How many data points to buffer before forcing a transfer to InfluxDB. Icinga defaults to `1024`.
 
+##### `enable_ha`
+Enable the high availability functionality. Only valid in a cluster setup. Icinga defaults to false.
+
 
 #### Class: `icinga2::feature::api`
 Enables or disables the `api` feature.
diff --git a/manifests/feature/elasticsearch.pp b/manifests/feature/elasticsearch.pp
index 4459f4c5a..49c88be0f 100644
--- a/manifests/feature/elasticsearch.pp
+++ b/manifests/feature/elasticsearch.pp
@@ -54,13 +54,16 @@
 #     C:/ProgramData/icinga2/var/lib/icinga2/certs/ElasticsearchWriter_elasticsearch_ca.crt on Windows
 #
 # [*enable_send_perfdata*]
-#    Whether to send check performance data metrics. Icinga defaults to 'false'.
+#   Whether to send check performance data metrics. Icinga defaults to 'false'.
 #
 # [*flush_interval*]
-#    How long to buffer data points before transferring to Elasticsearch. Icinga defaults to '10s'.
+#   How long to buffer data points before transferring to Elasticsearch. Icinga defaults to '10s'.
 #
 # [*flush_threshold*]
-#    How many data points to buffer before forcing a transfer to Elasticsearch. Icinga defaults to '1024'.
+#   How many data points to buffer before forcing a transfer to Elasticsearch. Icinga defaults to '1024'.
+#
+# [*enable_ha*]
+#   Enable the high availability functionality. Only valid in a cluster setup. Icinga defaults to false.
 #
 # === Example
 #
@@ -87,6 +90,7 @@
   Optional[Boolean]                      $enable_send_perfdata = undef,
   Optional[Icinga2::Interval]            $flush_interval       = undef,
   Optional[Integer]                      $flush_threshold      = undef,
+  Optional[Boolean]                      $enable_ha            = undef,
 ) {
 
   if ! defined(Class['::icinga2']) {
@@ -199,6 +203,7 @@
     enable_send_perfdata   => $enable_send_perfdata,
     flush_interval         => $flush_interval,
     flush_threshold        => $flush_threshold,
+    enable_ha              => $enable_ha,
   }
 
   # create object
diff --git a/manifests/feature/gelf.pp b/manifests/feature/gelf.pp
index 4ee6048d7..61d2ef014 100644
--- a/manifests/feature/gelf.pp
+++ b/manifests/feature/gelf.pp
@@ -19,6 +19,9 @@
 # [*enable_send_perfdata*]
 #   Enable performance data for 'CHECK RESULT' events. Icinga defaults to false.
 #
+# [*enable_ha*]
+#   Enable the high availability functionality. Only valid in a cluster setup. Icinga defaults to false.
+#
 #
 class icinga2::feature::gelf(
   Enum['absent', 'present']                $ensure               = present,
@@ -26,6 +29,7 @@
   Optional[Stdlib::Port::Unprivileged]     $port                 = undef,
   Optional[String]                         $source               = undef,
   Optional[Boolean]                        $enable_send_perfdata = undef,
+  Optional[Boolean]                        $enable_ha            = undef,
 ) {
 
   if ! defined(Class['::icinga2']) {
@@ -44,6 +48,7 @@
     port                 => $port,
     source               => $source,
     enable_send_perfdata => $enable_send_perfdata,
+    enable_ha            => $enable_ha,
   }
 
   # create object
diff --git a/manifests/feature/graphite.pp b/manifests/feature/graphite.pp
index 8bc5f77df..d7df06edf 100644
--- a/manifests/feature/graphite.pp
+++ b/manifests/feature/graphite.pp
@@ -27,6 +27,9 @@
 # [*enable_send_metadata*]
 #   Send metadata as metrics. Icinga defaults to false.
 #
+# [*enable_ha*]
+#   Enable the high availability functionality. Only valid in a cluster setup. Icinga defaults to false.
+#
 #
 class icinga2::feature::graphite(
   Enum['absent', 'present']                $ensure                 = present,
@@ -36,6 +39,7 @@
   Optional[String]                         $service_name_template  = undef,
   Optional[Boolean]                        $enable_send_thresholds = undef,
   Optional[Boolean]                        $enable_send_metadata   = undef,
+  Optional[Boolean]                        $enable_ha              = undef,
 ) {
 
   if ! defined(Class['::icinga2']) {
@@ -56,6 +60,7 @@
     service_name_template  => $service_name_template,
     enable_send_thresholds => $enable_send_thresholds,
     enable_send_metadata   => $enable_send_metadata,
+    enable_ha              => $enable_ha,
   }
 
   # create object
diff --git a/manifests/feature/influxdb.pp b/manifests/feature/influxdb.pp
index 2597e29fd..600ce99db 100644
--- a/manifests/feature/influxdb.pp
+++ b/manifests/feature/influxdb.pp
@@ -77,6 +77,10 @@
 # [*flush_threshold*]
 #    How many data points to buffer before forcing a transfer to InfluxDB. Icinga defaults to '1024'.
 #
+# # [*enable_ha*]
+#   Enable the high availability functionality. Only valid in a cluster setup. Icinga defaults to false.
+#
+#
 # === Example
 #
 # class { 'icinga2::feature::influxdb':
@@ -109,6 +113,7 @@
   Optional[Boolean]                        $enable_send_metadata   = undef,
   Optional[Icinga2::Interval]              $flush_interval         = undef,
   Optional[Integer[1]]                     $flush_threshold        = undef,
+  Optional[Boolean]                        $enable_ha              = undef,
 ) {
 
   if ! defined(Class['::icinga2']) {
@@ -226,6 +231,7 @@
     enable_send_metadata   => $enable_send_metadata,
     flush_interval         => $flush_interval,
     flush_threshold        => $flush_threshold,
+    enable_ha              => $enable_ha,
   }
 
   # create object
diff --git a/manifests/feature/opentsdb.pp b/manifests/feature/opentsdb.pp
index 86df62783..d6d76cc8d 100644
--- a/manifests/feature/opentsdb.pp
+++ b/manifests/feature/opentsdb.pp
@@ -13,11 +13,15 @@
 # [*port*]
 #   OpenTSDB port. Icinga defaults to 4242.
 #
+# [*enable_ha*]
+#   Enable the high availability functionality. Only valid in a cluster setup. Icinga defaults to false.
+#
 #
 class icinga2::feature::opentsdb(
-  Enum['absent', 'present']               $ensure = present,
-  Optional[Stdlib::Host]                  $host   = undef,
-  Optional[Stdlib::Port::Unprivileged]    $port   = undef,
+  Enum['absent', 'present']               $ensure    = present,
+  Optional[Stdlib::Host]                  $host      = undef,
+  Optional[Stdlib::Port::Unprivileged]    $port      = undef,
+  Optional[Boolean]                       $enable_ha = undef,
 ) {
 
   if ! defined(Class['::icinga2']) {
@@ -32,8 +36,9 @@
 
   # compose attributes
   $attrs = {
-    host => $host,
-    port => $port,
+    host      => $host,
+    port      => $port,
+    enable_ha => $enable_ha,
   }
 
   # create object
diff --git a/manifests/feature/perfdata.pp b/manifests/feature/perfdata.pp
index a151175ff..e48734745 100644
--- a/manifests/feature/perfdata.pp
+++ b/manifests/feature/perfdata.pp
@@ -39,6 +39,9 @@
 #   Rotation interval for the files specified in {host,service}_perfdata_path. Can be written in minutes or seconds,
 #   i.e. 1m or 15s. Icinga defaults to 30s.
 #
+# [*enable_ha*]
+#   Enable the high availability functionality. Only valid in a cluster setup. Icinga defaults to false.
+#
 #
 class icinga2::feature::perfdata(
   Enum['absent', 'present']           $ensure                  = present,
@@ -49,6 +52,7 @@
   Optional[String]                    $host_format_template    = undef,
   Optional[String]                    $service_format_template = undef,
   Optional[Icinga2::Interval]         $rotation_interval       = undef,
+  Optional[Boolean]                   $enable_ha               = undef,
 ) {
 
   if ! defined(Class['::icinga2']) {
@@ -70,6 +74,7 @@
     host_format_template    => $host_format_template,
     service_format_template => $service_format_template,
     rotation_interval       => $rotation_interval,
+    enable_ha               => $enable_ha,
   }
 
   # create object