Add keystone service metadata for v3 client

V3 resources structure/resource relation are completely
different than in v2. This patch introduce metadata for
v3 resources stored in:

  * keystone/client/v3/services/*

The new module/state in keystone to work with v3 only was introduced
by https://gerrit.mcp.mirantis.net/19529.

The change is fully backward compatible, as new resources will be
used only when keystone:client:resources:v3:enabled is set explicitly
to True.

Change-Id: I0f0e53dda29572987f221438394083590bb6a6e5
Related-Prod: PROD-19148
diff --git a/keystone/client/v3/service/nova-placement.yml b/keystone/client/v3/service/nova-placement.yml
new file mode 100644
index 0000000..1fea757
--- /dev/null
+++ b/keystone/client/v3/service/nova-placement.yml
@@ -0,0 +1,25 @@
+parameters:
+  _param:
+    cluster_public_protocol: https
+    nova_service_protocol: http
+  keystone:
+    client:
+      resources:
+        v3:
+          services:
+            placement:
+              type: placement
+              description: OpenStack Placement API
+              endpoints:
+                nova_placement_public:
+                  interface: 'public'
+                  url: ${_param:cluster_public_protocol}://${_param:cluster_public_host}:8778
+                  region: ${_param:openstack_region}
+                nova_placement_internal:
+                  interface: 'internal'
+                  url: ${_param:nova_service_protocol}://${_param:nova_service_host}:8778
+                  region: ${_param:openstack_region}
+                nova_placement_admin:
+                  interface: 'admin'
+                  url: ${_param:nova_service_protocol}://${_param:nova_service_host}:8778
+                  region: ${_param:openstack_region}