Merge pull request #311 from edx/e0d/ansible-role

Ansible 1.3 changes, prompt for overwrite.

playbooks/roles/ansible-role/tasks/main.yml

 ---
 
+- name: ansible-role | check if the role exists
+  command: test -d roles/{{ role_name }}
+  register: role_exists
+  ignore_errors: yes
+
+- name: ansible-role | prompt for overwrite
+  pause: prompt="Role {{ role_name }} exists. Overwrite? Touch any key to continue or <CTRL>-c, then a, to abort."
+  when: role_exists | success
+
 - name: ansible-role | create role directories
   file: path=roles/{{role_name}}/{{ item }} state=directory
   with_items:
     - tasks
+    - meta
     - handlers
-    - vars
+    - defaults
     - templates
     - files
 
@@ -13,5 +23,6 @@
   template: src={{ item }}/main.yml.j2 dest=roles/{{ role_name }}/{{ item }}/main.yml
   with_items:
     - tasks
+    - meta
+    - defaults
     - handlers
-    - vars
\ No newline at end of file

playbooks/roles/ansible-role/templates/vars/main.yml.j2 → playbooks/roles/ansible-role/templates/defaults/main.yml.j2

 ---
 {% include 'roles/ansible-role/templates/header.j2' %}
 #
-# Vars for role {{ role_name }}
+# Defaults for role {{ role_name }}
 # 
 
 #
@@ -15,4 +15,4 @@
 
 {{ role_name }}_debian_pkgs: []
 
-{{ role_name }}_redhat_pkgs: []
\ No newline at end of file
+{{ role_name }}_redhat_pkgs: []

playbooks/roles/ansible-role/templates/meta/main.yml.j2

+---
+{% include 'roles/ansible-role/templates/header.j2' %}
+#
+# Role includes for role {{ role_name }}
+# 
+# Example:
+#
+# dependencies:
+#   - {
+#   role: my_role 
+#   my_role_var0: "foo"
+#   my_role_var1: "bar"
+# }