diff --git a/manifests/api.pp b/manifests/api.pp
index bd72fea..bc992d6 100644
--- a/manifests/api.pp
+++ b/manifests/api.pp
@@ -71,6 +71,11 @@
 #   (Optional) The name of the index in Elasticsearch (string value).
 #   Defaults to $::os_service_default.
 #
+# [*event_time_to_live*]
+#   (Optional) Number of seconds that events are kept in the database for
+#   (<= 0 means forever)
+#   Defaults to $::os_service_default.
+#
 class panko::api (
   $manage_service               = true,
   $enabled                      = true,
@@ -87,6 +92,7 @@ class panko::api (
   $retry_interval               = $::os_service_default,
   $es_ssl_enabled               = $::os_service_default,
   $es_index_name                = $::os_service_default,
+  $event_time_to_live           = $::os_service_default,
 ) inherits panko::params {
 
   warning('This Class is deprecated and will be removed in future releases.')
@@ -140,14 +146,15 @@ running as a standalone service, or httpd for being run by a httpd server")
   }
 
   panko_config {
-    'api/host':               value => $host;
-    'api/port':               value => $port;
-    'api/workers':            value => $workers;
-    'api/max_limit':          value => $max_limit;
-    'storage/max_retries':    value => $max_retries;
-    'storage/retry_interval': value => $retry_interval;
-    'storage/es_ssl_enabled': value => $es_ssl_enabled;
-    'storage/es_index_name':  value => $es_index_name;
+    'api/host':                    value => $host;
+    'api/port':                    value => $port;
+    'api/workers':                 value => $workers;
+    'api/max_limit':               value => $max_limit;
+    'storage/max_retries':         value => $max_retries;
+    'storage/retry_interval':      value => $retry_interval;
+    'storage/es_ssl_enabled':      value => $es_ssl_enabled;
+    'storage/es_index_name':       value => $es_index_name;
+    'database/event_time_to_live': value => $event_time_to_live;
   }
 
   if $auth_strategy == 'keystone' {
diff --git a/releasenotes/notes/set-event-time-to-live-5769fa43abddbc0a.yaml b/releasenotes/notes/set-event-time-to-live-5769fa43abddbc0a.yaml
new file mode 100644
index 0000000..b1cfdbb
--- /dev/null
+++ b/releasenotes/notes/set-event-time-to-live-5769fa43abddbc0a.yaml
@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    Add event_time_to_live to panko config so user can tweak and expire data
+    instead of keeping for ever.
diff --git a/spec/classes/panko_api_spec.rb b/spec/classes/panko_api_spec.rb
index 2a2fc33..2b1bfe5 100644
--- a/spec/classes/panko_api_spec.rb
+++ b/spec/classes/panko_api_spec.rb
@@ -11,16 +11,17 @@ describe 'panko::api' do
   end
 
   let :params do
-    { :enabled           => true,
-      :manage_service    => true,
-      :package_ensure    => 'latest',
-      :port              => '8977',
-      :max_limit         => '1000',
-      :host              => '0.0.0.0',
-      :max_retries       => '10',
-      :retry_interval    => '20',
-      :es_ssl_enabled    => true,
-      :es_index_name     => 'panko',
+    { :enabled            => true,
+      :manage_service     => true,
+      :package_ensure     => 'latest',
+      :port               => '8977',
+      :max_limit          => '1000',
+      :host               => '0.0.0.0',
+      :max_retries        => '10',
+      :retry_interval     => '20',
+      :es_ssl_enabled     => true,
+      :es_index_name      => 'panko',
+      :event_time_to_live => '3600',
     }
   end
 
@@ -48,6 +49,7 @@ describe 'panko::api' do
       is_expected.to contain_panko_config('storage/es_ssl_enabled').with_value(params[:es_ssl_enabled])
       is_expected.to contain_panko_config('storage/es_index_name').with_value(params[:es_index_name])
       is_expected.to contain_panko_config('oslo_middleware/enable_proxy_headers_parsing').with_value('<SERVICE DEFAULT>')
+      is_expected.to contain_panko_config('database/event_time_to_live').with_value( params[:event_time_to_live] )
     end
 
     [{:enabled => true}, {:enabled => false}].each do |param_hash|