setting httpd_can_network_connect_db sebool for resultsdb-backend role

roles/taskotron/resultsdb-backend/tasks/main.yml

@@ -17,6 +17,9 @@
   sudo: true
   action: postgresql_user db={{ resultsdb_db_name }} user={{ resultsdb_db_user }} password={{ resultsdb_db_password }} role_attr_flags=NOSUPERUSER
 
+- name: ensure selinux lets httpd talk to postgres
+  seboolean: name=httpd_can_network_connect_db persistent=yes state=yes
+
 - name: generate resultsdb config
   template: src=settings.py.j2 dest=/etc/resultsdb/settings.py owner=root group=root mode=0644
   notify: