Generalize pull role, apply it to desktop machines

desktop.yml

@@ -5,4 +5,6 @@
   roles:
     - common
     - desktop
-    - localansible
+    - role: localansible
+      vars:
+        pullplaybook: "desktop.yml"

roles/ansiblehost/defaults/main.yml

@@ -0,0 +1,2 @@
+# vim:ft=ansible:
+pullplaybook: "ec2.yml"

roles/ansiblehost/tasks/main.yml

@@ -49,5 +49,5 @@
       minute: "0"
       hour: "*/12"
       name: ansible-pull
-      job: "cd /opt/ansible-repo && HOME=/root /usr/local/bin/ansible-playbook ec2.yml --vault-password-file /root/ansiblevaultpass > /var/log/ansible-pull.log 2>&1"
+      job: "cd /opt/ansible-repo && HOME=/root /usr/local/bin/ansible-playbook \"{{ pullplaybook }}\" --vault-password-file /root/ansiblevaultpass > /var/log/ansible-pull.log 2>&1"
   become: true