Doesn't HAProxy provide such functionality? Patroni has REST API which can be used by HAProxy for a health-check. patroni:8008/master will return http status c

Doesn't HAProxy provide such functionality? Patroni has REST API which can be used by HAProxy for a health-check. patroni:8008/master will return http status code 200 only if the node running as elected master patroni:8008/replica will return http status code 200 if node running as replica. And final missing bit is a automation of generation of haproxy.cfg - it could be done with confd: https://github.com/kelseyhightower/confd https://github.com/kelseyhightower/confd And here is an example of template file: https://github.com/zalando/patroni/blob/master/extras/confd/templates/haproxy.tmpl https://github.com/zalando/patroni/blob/master/extras/confd/...