ENH: allowing to pass extra_vars from update script to the ansible plays being called

playbooks/roles/edx_ansible/templates/update.j2

@@ -44,6 +44,10 @@ fi
 extra_args="$extra_args -e 'disable_edx_services=true' -e devstack=true"
 {% endif %}
 
+if [[ "$3" == "-e" ]]; then
+        extra_args="$extra_args -e ${@:3}"
+fi
+
 declare -A repos_to_cmd
 edx_ansible_cmd="{{ edx_ansible_venv_bin }}/ansible-playbook -i localhost, -c local $extra_args"