1 min readMar 19, 2019
HAProxy don’t connected with etcd, I run it on first two etcd nodes only to minimise needed cluster node count. You can run it on some additional nodes if you want. But mind that it will add two more nodes for the HAProxy+Heartbeat to your cluster config and you any way will need to have three etcd node to create a HA etcd configuration. Etcd is not taking a big resources and we can run on few of this nodes a HAProxy for example, that why.