diff --git a/defaults/main.yml b/defaults/main.yml
index 38a0ed62..6b8eaee1 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -35,6 +35,10 @@ horizon_service_name: horizon
 horizon_galera_database: dash
 horizon_galera_user: dash
 
+## Session configuration
+# Specifies the timespan in seconds inactivity, until a user is considered as
+# logged out
+horizon_session_timeout: 1800
 
 ## Horizon Help URL Path
 horizon_help_url: http://docs.openstack.org
diff --git a/templates/horizon_local_settings.py.j2 b/templates/horizon_local_settings.py.j2
index 964ffd7c..833daab6 100644
--- a/templates/horizon_local_settings.py.j2
+++ b/templates/horizon_local_settings.py.j2
@@ -39,6 +39,9 @@ ALLOWED_HOSTS = ['*']
 CSRF_COOKIE_SECURE = True
 SESSION_COOKIE_SECURE = True
 
+# Define the time after which a Horizon session expires
+SESSION_TIMEOUT = {{ horizon_session_timeout }}
+
 # Overrides for OpenStack API versions. Use this setting to force the
 # OpenStack dashboard to use a specific API version for a given service API.
 # NOTE: The version should be formatted as it appears in the URL for the