slackbridge does not work on a ipv6 only cluster.

[ronnyaa]

It looks like the slackbridge container only listen on the hardcoded ipv4-only address 0.0.0.0
this makes it non functional on any ipv6 only host or cluster.

/ # netstat -pan Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:5858 0.0.0.0:* LISTEN -

If the container could listen on the backwards compatible ipv6 any [::]:5858, or on all ( *:5858 ) instead it would work on all clusters.

I have tried making it listen on various versions of :: [::] "::" "[::]" using the hostname config values, but in those cases it the container fails to start at all.