add deps to molecule playbook

molecule/default/playbook.yml

@@ -1,5 +1,20 @@
 ---
 - name: Converge
   hosts: all
+  vars:
+    postgres_repository_enabled: True
+    postgres_users:
+      - name: "postgres"
+        password: "postgres"
+        role_attr_flags: SUPERUSER
+        login_host: localhost
+        state: present
+        pam_user: True
+    dockerengine_packages_extra:
+      - epel-release
+      - python2-pip
+
   roles:
+    - role: xoxys.postgres
+    - role: xoxys.docker-engine
     - role: xoxys.freshrss