ansible: use vars

ansible/ansible.yml

@@ -1,12 +1,13 @@
 ---
 - hosts: all
   sudo: yes
+  vars:
+    packages: [rsync, git]
   tasks:
   - name: Install packages
     action: pacman pkg={{ item }} state=installed
-    with_items:
-      - rsync
-      - git
+    with_items: packages
+    when: ansible_os_family == "Archlinux"
   # handlers:
   #   - name: restart ntpd
   #     action: service name=ntpd state=restarted

ansible/hosts

@@ -1 +1 @@
-127.0.0.1 ansible_connection=local ansible_python_interpreter=/usr/bin/python2 package_manager=pacman
+localhost ansible_connection=local ansible_python_interpreter=/usr/bin/python2 package_manager=pacman