static: add default site

If you currently hit https://static.opendev.org you get redirected to
the default site, which is just the first site in alphabetical order,
which happens to be governance.openstack.org.

Add a 00-static.opendev.org.conf file so this is the default site.  It
will just serve up the top-level afs directory.

Change-Id: Icdcee962b76545c12e84d4cadb0b60a68cabe38b

playbooks/roles/static/tasks/main.yaml

@@ -50,11 +50,28 @@
     state: present
     name: headers
 
-- name: Make sure default site disabled
+
+# Default site
+- name: Make sure packaged default site disabled
   command: a2dissite 000-default.conf
   args:
     removes: /etc/apache2/sites-enabled/000-default.conf
 
+- name: Add custom default site
+  copy:
+    src: 00-static.opendev.org.conf
+    dest: /etc/apache2/sites-available/
+    owner: root
+    group: root
+    mode: 0644
+
+- name: Enable static.opendev.org
+  command: a2ensite 00-static.opendev.org
+  args:
+    creates: /etc/apache2/sites-enabled/00-static.opendev.org
+  notify:
+    - Reload apache2
+
 # governance.openstack.org
 - name: Install governance.openstack.org
   copy: