[MOLECULE] Setup Molecule for kube-prometheus-stack role

Change-Id: Id1c40e6a7da0ad0c42b162835f09630630569dd2
Issue-ID: INT-1926
Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>
diff --git a/ansible/roles/kube-prometheus-stack/molecule/default/molecule.yml b/ansible/roles/kube-prometheus-stack/molecule/default/molecule.yml
index 713e4d6..17bfcd3 100644
--- a/ansible/roles/kube-prometheus-stack/molecule/default/molecule.yml
+++ b/ansible/roles/kube-prometheus-stack/molecule/default/molecule.yml
@@ -18,5 +18,10 @@
   env:
     ANSIBLE_ROLES_PATH: ../../../../test/roles
     ANSIBLE_LIBRARY: ../../../../library
+  inventory:
+    group_vars:
+      all:
+        app_name: onap
+        app_data_path: "/opt/{{ app_name }}"
 verifier:
   name: testinfra