buildmaster: try running selinux context change async

roles/taskotron/buildmaster/tasks/main.yml

@@ -52,6 +52,9 @@
 - name: make sure the selinux fcontext is restored
   command: restorecon -R "{{ buildmaster_home }}"
   when: deployment_type in ['dev', 'stg', 'prod', 'qa-stg']
+  async: 300
+  poll: 0
+  register: selinux_context
 
 - name: allow httpd tcp connections with selinux
   seboolean: name=httpd_can_network_connect state=true persistent=yes
@@ -92,3 +95,9 @@
 - name: put robots.txt at web root of external hostname
   when: robots_path is defined
   template: src=robots.txt.j2 dest={{ robots_path }}/robots.txt owner=apache group=apache mode=0644
+
+- name: check on selinux context change
+  async_status: jid={{ selinux_context.ansible_job_id }}
+  register: job_result
+  until: job_result.finished
+  retries: 30