Running coturn via Docker in AWS results in only private IP for relay

[calebtote]

Hi there,
We're trying to run coturn in AWS via Docker.

• We have set the config to autodetect our interface but it continually binds to the private IP of the docker container and not the public IP of the EC2 host.
• We are launching docker in --network host mode.
• We are not behind a NAT at all

When I test using Trickle ICE, I get this output (my public IP redacted with xxx):

[...]
0.075	srflx	4	udp	xxx.xxx.xxx.xxx	57000	100 | 32285 | 255		
0.076	relay	5	udp	10.53.34.156	65535	5 | 32285 | 255		
0.077	srflx	3	udp	xxx.xxx.xxx.xxx	57000	100 | 32287 | 255		
0.097	srflx	4	udp	xxx.xxx.xxx.xxx	61094	100 | 32285 | 254		
0.097	relay	5	udp	10.53.34.156	65525	5 | 32285 | 254		
0.116	Done

This relay IP is the private IP in our docker container. Am I correct in understanding that this should be the public IP of the EC2 instance? If so, what can we try to make this correct? If we manually set our external-ip=<ec2 public IP> in the config I just get no relay endpoints returned at all from Trickle ICE.

[tyranron]

@calebtote did you try to specify the relay-ip option too?

Could you also provide the log after start?