Use multistore modules in the example manifest

... because legacy backend modules were deprecated.

Change-Id: Ic32ae0a9aadf893d28fa0208f27b0f440ad4f4d1

examples/glance.pp

@@ -0,0 +1,12 @@
+glance::backend::multistore::file { 'file1': }
+
+glance::backend::multistore::swift { 'swift1':
+  swift_store_user => 'demo',
+  swift_store_key  => 'secrete',
+}
+
+class { 'glance::api':
+  keystone_password => 'a_big_secret',
+  enabled_backends  => ['swift1:swift', 'file1:file'],
+  default_backend   => 'swift1',
+}

examples/glance_multi_store.pp

@@ -1,25 +0,0 @@
-# Example: Declaring multiple backend stores
-#
-# To declare multiple glance::backend::* classes, each declaration must include
-# the parameter multi_store set to true. This prevents each individual backend from
-# setting itself as the default store as soon as it is declared. Rather, the
-# default store can be chosen by the user when declaring glance::api (if no
-# default_store is set at that point, then the first store in the list 'stores'
-# provided will be made the default).
-
-class { 'glance::backend::file':
-  multi_store => true,
-}
-
-class { 'glance::backend::swift':
-  swift_store_user => 'demo',
-  swift_store_key  => 'secrete',
-  multi_store      => true,
-}
-
-class { 'glance::api':
-  keystone_password => 'a_big_secret',
-  stores            => ['file', 'swift'],
-  default_store     => 'swift',
-  multi_store       => true,
-}

examples/glance_single_store.pp

@@ -1,18 +0,0 @@
-# Example: Declaring a single backend store
-#
-# To declare only one glance::backend::* class, all you need to do is declare
-# it without the multi_store parameter. This way, multi_store will default to false
-# and the glance::backend::* class will automatically set itself as the default backend.
-# After doing this, you must not declare glance::api with multi_store set to true,
-# or it will attempt to override the default set by the backend class and result
-# in an error.
-
-class { 'glance::backend::swift':
-  swift_store_user => 'demo',
-  swift_store_key  => 'secrete',
-}
-
-class { 'glance::api':
-  keystone_password => 'a_big_secret',
-  stores            => ['swift'],
-}