Added system downgrade via eepm

roles/common/tasks/main.yml

@@ -28,6 +28,11 @@
         path: /etc/apt/apt.conf.d/tmp.cache.conf
         state: absent
 
+- name: install eepm package
+  apt_rpm:
+    pkg: eepm
+    state: installed
+
 - name: purge apt.sources
   shell: find /etc/apt/sources.list.d/ -name '*.list' -delete
   changed_when: false
@@ -61,6 +66,9 @@
       - rpm
     state: installed
 
+- name: downgrade to archive date
+  shell: epm downgrade -y
+
 - name: dist-upgrade
   shell: apt-get -y dist-upgrade