CORD-2905 Run XOS API tests using 'helm test xos-core'

Change-Id: I932fb727c1b06b9420fa430a2224cc0ac4c1568a
diff --git a/xos-core/values.yaml b/xos-core/values.yaml
index ccb647c..5f2b6e6 100644
--- a/xos-core/values.yaml
+++ b/xos-core/values.yaml
@@ -47,6 +47,10 @@
     repository: xosproject/xos-ws
     tag: 'master'
     pullPolicy: 'IfNotPresent'
+  api_tester:
+    repository: xosproject/xos-api-tester
+    tag: 'master'
+    pullPolicy: 'IfNotPresent'
 
 node_ports:
   ws_service_port: 30008
@@ -58,6 +62,9 @@
   chameleon_service_port: 30006
   tosca_service_port: 30007
 
+xosAdminUser: &adminuser "admin@opencord.org"
+xosAdminPassword: &adminpass "letmein"
+
 configs:
   core_config:
     name: xos-core
@@ -140,8 +147,8 @@
 
     - model: core.User
       fields:
-        email: "admin@opencord.org"
-        password: "letmein"
+        email: *adminuser
+        password: *adminpass
         firstname: "XOS"
         lastname: "User"
         is_admin: True