add missing epel test dependency

defaults/main.yml

@@ -0,0 +1,2 @@
+---
+haveged_packages_extra: []

molecule/ec2-centos-7/playbook.yml

@@ -1,5 +1,9 @@
 ---
 - name: Converge
   hosts: all
+  vars:
+    haveged_packages_extra:
+      - epel-release
+
   roles:
     - role: xoxys.haveged

tasks/setup.yml

@@ -2,8 +2,9 @@
 - block:
     - name: Install haveged entrophy daemon
       package:
-        name: haveged
+        name: "{{ item }}"
         state: present
+      loop: "{{ haveged_packages_extra + __haveged_packages }}"
 
     - name: Enable and start service
       service:

vars/main.yml

@@ -0,0 +1,3 @@
+---
+__haveged_packages: 
+  - haveged