Deprecate support for [DEFAULT] location_strategy

... because the option was deprecated in glance.

Depneds-on: https://review.opendev.org/c/openstack/glance/+/906317
Change-Id: I44a7ecf52972c88f1ca6b41236f4757e0fcff3f8

manifests/api.pp

@@ -95,10 +95,6 @@
 #   (optional) Expose image location to trusted clients.
 #   Defaults to $facts['os_service_default'].
 #
-# [*location_strategy*]
-#   (optional) Strategy used to determine the image location order.
-#   Defaults to $facts['os_service_default'].
-#
 # [*purge_config*]
 #   (optional) Whether to set only the specified config options
 #   in the api config.
@@ -266,6 +262,10 @@
 #   service name removed.
 #   Defaults to undef
 #
+# [*location_strategy*]
+#   (optional) Strategy used to determine the image location order.
+#   Defaults to undef
+#
 class glance::api(
   $package_ensure                       = 'present',
   $bind_host                            = $facts['os_service_default'],
@@ -280,7 +280,6 @@ class glance::api(
   Boolean $enabled                      = true,
   $service_name                         = $::glance::params::api_service_name,
   $show_image_direct_url                = $facts['os_service_default'],
-  $location_strategy                    = $facts['os_service_default'],
   Boolean $purge_config                 = false,
   $enforce_secure_rbac                  = $facts['os_service_default'],
   $use_keystone_limits                  = $facts['os_service_default'],
@@ -325,6 +324,7 @@ class glance::api(
   $filesystem_store_metadata_file       = undef,
   $filesystem_store_file_perm           = undef,
   Optional[String] $pipeline            = undef,
+  $location_strategy                    = undef,
 ) inherits glance {
 
   include glance::deps
@@ -338,6 +338,10 @@ class glance::api(
     }
   }
 
+  if $location_strategy != undef {
+    warning('The location_strategy parameter was deprecated and will be removed.')
+  }
+
   if $sync_db {
     include glance::db::sync
     include glance::db::metadefs
@@ -365,7 +369,7 @@ class glance::api(
     'DEFAULT/backlog':                    value => $backlog;
     'DEFAULT/workers':                    value => $workers;
     'DEFAULT/show_image_direct_url':      value => $show_image_direct_url;
-    'DEFAULT/location_strategy':          value => $location_strategy;
+    'DEFAULT/location_strategy':          value => pick($location_strategy, $facts['os_service_default']);
     'DEFAULT/delayed_delete':             value => $delayed_delete;
     'DEFAULT/enforce_secure_rbac':        value => $enforce_secure_rbac;
     'DEFAULT/use_keystone_limits':        value => $use_keystone_limits;

releasenotes/notes/deprecate-location_strategy-0d9471feb6daab5e.yaml

@@ -0,0 +1,4 @@
+---
+deprecations:
+  - |
+    The ``glance::api::location_strategy`` parameter has been deprecated.