creating common var file for common pkgs

playbooks/roles/common/tasks/main.yml

@@ -35,16 +35,7 @@
   
 - name: Install role-independent useful system packages
   # do this before log dir setup; rsyslog package guarantees syslog user present
-  apt: pkg={{item}} install_recommends=yes state=present update_cache=yes
-  with_items:
-  - ack-grep
-  - lynx-cur
-  - logrotate
-  - mosh
-  - rsyslog
-  - screen
-  - tree
-  - git
+  apt: pkg={{','.join(common_debian_pkgs)}} install_recommends=yes state=present update_cache=yes
   tags:
   - pre_install
   - update

playbooks/roles/common/vars/main.yml

+common_debian_pkgs:
+  - ack-grep
+  - lynx-cur
+  - logrotate
+  - mosh
+  - rsyslog
+  - screen
+  - tree
+  - git