It’s strange that, in fact, the load balancer container shows the following:
Ports
State IP Address Public (on Host) Private (in Container) Protocol
ACTIVE 192.168.88.200 8083 8083 TCP
But 8083 port doesn’t exist in the real host:
$ netstat -lnp
(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.1:9344 0.0.0.0:* LISTEN -
udp 0 0 0.0.0.0:5353 0.0.0.0:* 1573/chromium
udp6 0 0 :::4500 :::* -
udp6 0 0 :::500 :::* -
raw6 0 0 :::58 :::* 7 -
…
[snip]