Allow keystone endpoint_type interpolation for reclass models

- Add 'endpoint_type' identity parameter
- Set 'endpoint_type: internalURL' as a default parameter for
  'service' reclass model (/metadata/)

Change-Id: I9626989e2e13e6acd2f83b020709913abc841da3
diff --git a/tests/pillar/cluster.sls b/tests/pillar/cluster.sls
index 61a80d2..020435f 100644
--- a/tests/pillar/cluster.sls
+++ b/tests/pillar/cluster.sls
@@ -26,6 +26,7 @@
       port: 5000
       api_version: 2
       encryption: ssl
+      endpoint_type: publicURL
     websso:
       login_url: "WEBROOT + 'auth/login/'"
       logout_url: "WEBROOT + 'auth/logout/'"
diff --git a/tests/pillar/single.sls b/tests/pillar/single.sls
index bbb2360..f050427 100644
--- a/tests/pillar/single.sls
+++ b/tests/pillar/single.sls
@@ -24,6 +24,7 @@
       host: 127.0.0.1
       encryption: ssl
       api_version: 2
+      endpoint_type: publicURL
     websso:
       login_url: "WEBROOT + 'auth/login/'"
       logout_url: "WEBROOT + 'auth/logout/'"