Check if app is up

lb-common/overlay/opt/frontend/config/bankidpqa/haproxy.j2

@@ -29,3 +29,12 @@ frontend {{ site_name }}
 
     use_backend {{ site_name }}__default
 {% endblock frontend %}
+{% block backend %}
+{{ output_backends(backends,
+      config=[
+      'cookie SERVERID insert indirect nocache',
+      'option httpchk GET /bankid/idp/api/status'
+      ]
+   )
+}}
+{% endblock backend %}