Hi all,
I have a TCP service listening on port 8883 and passing traffic to an MQTT container running on 1883 so Traefik is doing the TLS offloading.
Since upgrading to 2.5.0 I started seeing the following:
2021-08-19 21:53:32
time="2021-08-19T21:53:31+01:00" level=error msg="Error during connection: readfrom tcp 172.22.0.7:37118->172.22.0.8:1883: tls: client requested unsupported application protocols ([mqtt])"
2021-08-19 21:53:26
time="2021-08-19T21:53:26+01:00" level=error msg="Error during connection: readfrom tcp 172.22.0.7:37114->172.22.0.8:1883: tls: client requested unsupported application protocols ([mqtt])"
2021-08-19 21:53:25
time="2021-08-19T21:53:25+01:00" level=error msg="Error during connection: readfrom tcp 172.22.0.7:37112->172.22.0.8:1883: tls: client requested unsupported application protocols ([mqtt])"
2021-08-19 21:53:11
time="2021-08-19T21:53:11+01:00" level=error msg="Error during connection: readfrom tcp 172.22.0.7:37106->172.22.0.8:1883: tls: client requested unsupported application protocols ([mqtt])"
2021-08-19 21:53:03
time="2021-08-19T21:53:03+01:00" level=error msg="Error during connection: readfrom tcp 172.22.0.7:37102->172.22.0.8:1883: tls: client requested unsupported application protocols ([mqtt])"
Reverting to version 2.4.14 fixes the issue. Is this a bug in 2.5.0?
Thank you in advance