Docker swarm wildfly urgent help needed

Hi i want to setup a HA wildfly instane on docker swarm as a suddenly came project .

so here is my architecture 3 apache front end server in docker swarm(1) with 3 docker mangers and 3 docker works. And 3 wildfly 10 with another seprate docker swarm(2)
3 mangers 3 workes db is in physical machine mysql with group replication

  1. so my doubts are now application in working on ip no dns reslove . for eg if i put my front apache server with ip on physical machine 192.168.2.1:80 (port exposed via docker 80 port) if the docker swarm manger or application in dies will that ip forwarded to next replication ?
    appplication server port listing on 8080 on physical machine from docker can docker can communicate the appplication server and forward request ?

2 which is best network layout i can chossee on application wildfly it will listen on port to receive data from a device and write to db . so will the docker application can connect to physical mysql server ?