Split ansible-related config into separate task file.

main.yml

@@ -10,10 +10,6 @@
     - geerlingguy.homebrew
 
   tasks:
-    - name: Ensure Ansible downloads directory exists.
-      file:
-        path: "{{ downloads }}"
-        state: directory
-
+    - include: tasks/ansible-setup.yml
     - include: tasks/dotfiles.yml
     - include: tasks/preferences.yml

tasks/ansible-setup.yml

@@ -0,0 +1,17 @@
+---
+- name: Ensure Ansible downloads directory exists.
+  file:
+    path: "{{ downloads }}"
+    state: directory
+
+- name: Ensure /etc/ansible directory exists.
+  file:
+    path: /etc/ansible
+    state: directory
+  sudo: yes
+
+- name: Symlink /usr/local/etc/ansible to /etc/ansible.
+  file:
+    src: /etc/ansible
+    path: /usr/local/etc/ansible
+    state: link