Enable debug logging for gate checks

This patch enables debug logging for all OpenStack services
in the gate checks to ensure that the maximum amount of
information is available for debugging gate check failures.

Change-Id: Ide583fa6dc06008641bbc10b1abcaa816e662337
Closes-Bug: #1482572

scripts/gate-check-commit.sh

@@ -65,6 +65,9 @@ if [ "${BOOTSTRAP_ANSIBLE}" == "yes" ]; then
   source $(dirname ${0})/bootstrap-ansible.sh
 fi
 
+# Enable debug logging for all services to make failure debugging easier
+echo "debug: True" | tee -a /etc/openstack_deploy/user_variables.yml
+
 # Run the ansible playbooks if required
 if [ "${RUN_PLAYBOOKS}" == "yes" ]; then
   # Set-up our tiny awk script.