Talk high performance backend image not working anymore

[Lawkss]

I run native nextcloud but have the recording backend as a docker container from:

ghcr.io/nextcloud-releases/aio-talk:latest

This has worked great in the past.

with the latest update, nextcloud reports Error 503 and cannot connect to the talk high performance backend container.

When I restore the old container image it works again.

The error from what I can remember in the logs that it is unable to resolv my NC domain and cannot connect janus and nats.

How can I see what has changed in between images so that I can troublehsoot?

[szaimen]

Hi, please post the complete logs here.

[Lawkss]

2026-05-15T17:59:01.494739928Z ++ hostname -i
2026-05-15T17:59:01.494762838Z ++ grep -oP '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+'
2026-05-15T17:59:01.494802540Z ++ head -1
2026-05-15T17:59:01.496299927Z + IPv4_ADDRESS_TALK_RELAY=172.18.0.2
2026-05-15T17:59:01.498271225Z ++ dig talkhpb.vom-bruch.com IN A +short +search
2026-05-15T17:59:01.498296941Z ++ grep '^[0-9.]\+$'
2026-05-15T17:59:01.498300976Z ++ head -n1
2026-05-15T17:59:01.498304072Z ++ sort
2026-05-15T17:59:01.519321065Z + IPv4_ADDRESS_TALK=213.255.218.23
2026-05-15T17:59:01.519333839Z ++ dig talkhpb.vom-bruch.com AAAA +short +search
2026-05-15T17:59:01.519337438Z ++ head -n1
2026-05-15T17:59:01.519340493Z ++ grep '^[0-9a-f:]\+$'
2026-05-15T17:59:01.519343493Z ++ sort
2026-05-15T17:59:01.534852180Z + IPv6_ADDRESS_TALK=2a00:98c7:1000:1300:6e4b:90ff:fe57:e7b1
2026-05-15T17:59:01.534869785Z + '[' warn '!=' debug ']'
2026-05-15T17:59:01.534873953Z + set +x
2026-05-15T17:59:01.534876963Z + IP_BINDING=::
2026-05-15T17:59:01.534879992Z + grep -q 1 /sys/module/ipv6/parameters/disable
2026-05-15T17:59:01.534883166Z + grep -q 1 /proc/sys/net/ipv6/conf/all/disable_ipv6
2026-05-15T17:59:01.534886153Z + grep -q 1 /proc/sys/net/ipv6/conf/default/disable_ipv6
2026-05-15T17:59:01.535882684Z + '[' warn '!=' debug ']'
2026-05-15T17:59:01.535896434Z + set +x
2026-05-15T17:59:02.744478321Z [43] 2026/05/15 19:59:02.744139 [INF] Starting nats-server
2026-05-15T17:59:02.744746101Z [43] 2026/05/15 19:59:02.744589 [INF]   Version:  2.14.0
2026-05-15T17:59:02.744756542Z [43] 2026/05/15 19:59:02.744595 [INF]   Git:      [0cbd01c]
2026-05-15T17:59:02.744760385Z [43] 2026/05/15 19:59:02.744598 [INF]   Name:     ND527LM5ZOBIHVJ55NLKXSJHRPHFTYDYZ3I7WK54MTCYBMOZIEPYTTPC
2026-05-15T17:59:02.744763825Z [43] 2026/05/15 19:59:02.744601 [INF]   ID:       ND527LM5ZOBIHVJ55NLKXSJHRPHFTYDYZ3I7WK54MTCYBMOZIEPYTTPC
2026-05-15T17:59:02.744766949Z [43] 2026/05/15 19:59:02.744608 [INF] Using configuration file: /etc/nats.conf (sha256:32d5c4377083a8a4547e8923799e2b9a01e89973836d67582ed9ece110290cce)
2026-05-15T17:59:02.745459662Z [43] 2026/05/15 19:59:02.745329 [INF] Listening for client connections on 127.0.0.1:4222
2026-05-15T17:59:02.745705737Z [43] 2026/05/15 19:59:02.745531 [INF] Server is ready
2026-05-15T17:59:02.750418666Z main.go:177: Starting up version 2.1.1~docker/go1.26.1 as pid 46
2026-05-15T17:59:02.750827465Z main.go:184: Using a maximum of 4 CPUs
2026-05-15T17:59:02.752334543Z client.go:114: Connection established to nats://127.0.0.1:4222 (ND527LM5ZOBIHVJ55NLKXSJHRPHFTYDYZ3I7WK54MTCYBMOZIEPYTTPC)
2026-05-15T17:59:02.752636863Z Janus version: 1401 (1.4.1)
2026-05-15T17:59:02.752647882Z Janus commit: 85304a7a4bdb2719583ad53ae04130a8273dba6a
2026-05-15T17:59:02.752651556Z Compiled on:  Fri May 15 14:00:39 UTC 2026
2026-05-15T17:59:02.752664229Z 
2026-05-15T17:59:02.752667462Z Logger plugins folder: /usr/local/lib/janus/loggers
2026-05-15T17:59:02.752670562Z ---------------------------------------------------
2026-05-15T17:59:02.752673450Z   Starting Meetecho Janus (WebRTC Server) v1.4.1
2026-05-15T17:59:02.752676410Z ---------------------------------------------------
2026-05-15T17:59:02.752679317Z 
2026-05-15T17:59:02.752682127Z Checking command line arguments...
2026-05-15T17:59:02.752685021Z Debug/log level is 3
2026-05-15T17:59:02.752687931Z Debug/log timestamps are disabled
2026-05-15T17:59:02.752690862Z Debug/log colors are disabled
2026-05-15T17:59:02.752867050Z common.go:208: WARNING: No GRPC server certificate and/or key configured, running unencrypted
2026-05-15T17:59:02.753052158Z [ERR] [ice.c:janus_ice_set_turn_server:1277] Could not resolve vom-bruch.com/cloud...
2026-05-15T17:59:02.753059142Z [FATAL] [janus.c:main:5309] Invalid TURN address vom-bruch.com/cloud:3478
2026-05-15T17:59:02.753323259Z common.go:210: WARNING: No GRPC CA configured, expecting unencrypted connections
2026-05-15T17:59:02.753410648Z backend_storage_static.go:73: Backend backend-1 added for https://vom-bruch.com/cloud/
2026-05-15T17:59:02.753418132Z hub.go:285: Using a maximum of 32 concurrent backend connections per host
2026-05-15T17:59:02.753421400Z hub.go:292: Using a timeout of 10s for backend connections
2026-05-15T17:59:02.753424521Z hub.go:325: No trusted proxies configured, only allowing for [127.0.0.0/8, ::1/128, 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16]
2026-05-15T17:59:02.753427858Z hub.go:366: Not using GeoIP database
2026-05-15T17:59:02.753524021Z hub.go:449: No candidates allowlist
2026-05-15T17:59:02.753532099Z hub.go:460: No candidates blocklist
2026-05-15T17:59:02.753686937Z settings.go:70: Maximum bandwidth 1 Mbps per publishing stream
2026-05-15T17:59:02.753865018Z settings.go:78: Maximum bandwidth 2 Mbps per screensharing stream
2026-05-15T17:59:02.754168369Z janus.go:182: Using a timeout of 10s for MCU requests
2026-05-15T17:59:02.754177210Z janus.go:194: No candidates allowlist
2026-05-15T17:59:02.754180576Z janus.go:206: No candidates blocklist
2026-05-15T17:59:02.754339726Z main.go:287: Could not initialize janus MCU (dial tcp 127.0.0.1:8188: connect: connection refused) will retry in 1s
2026-05-15T17:59:02.773355742Z Exec: /opt/eturnal/erts-15.2.6/bin/erlexec -noinput +Bd -boot /opt/eturnal/releases/1.12.2/start -mode embedded -boot_var SYSTEM_LIB_DIR /opt/eturnal/lib -config /opt/eturnal/releases/1.12.2/sys.config -args_file /opt/eturnal/releases/1.12.2/vm.args -erl_epmd_port 3470 -start_epmd false -- foreground
2026-05-15T17:59:02.773376944Z Root: /opt/eturnal
2026-05-15T17:59:02.773380964Z /opt/eturnal
2026-05-15T17:59:02.773613411Z 2026-05-15 19:59:02,773 WARN exited: janus (exit status 1; not expected)

[Lawkss]

And this is the log when it is working fine, previous image:

2026-05-15T18:06:57.155870706Z ++ hostname -i
2026-05-15T18:06:57.156543302Z ++ grep -oP '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+'
2026-05-15T18:06:57.156558422Z ++ head -1
2026-05-15T18:06:57.157002193Z + IPv4_ADDRESS_TALK_RELAY=172.18.0.2
2026-05-15T18:06:57.157956878Z ++ dig talkhpb.vom-bruch.com IN A +short +search
2026-05-15T18:06:57.157971515Z ++ grep '^[0-9.]\+$'
2026-05-15T18:06:57.157975412Z ++ sort
2026-05-15T18:06:57.158564639Z ++ head -n1
2026-05-15T18:06:57.174469442Z + IPv4_ADDRESS_TALK=213.255.218.23
2026-05-15T18:06:57.175724240Z ++ dig talkhpb.vom-bruch.com AAAA +short +search
2026-05-15T18:06:57.175739307Z ++ grep '^[0-9a-f:]\+$'
2026-05-15T18:06:57.175743438Z ++ sort
2026-05-15T18:06:57.175746530Z ++ head -n1
2026-05-15T18:06:57.191491940Z + IPv6_ADDRESS_TALK=2a00:98c7:1000:1300:6e4b:90ff:fe57:e7b1
2026-05-15T18:06:57.191529662Z + set +x
2026-05-15T18:06:57.191686257Z + IP_BINDING=::
2026-05-15T18:06:57.191695644Z + grep -q 1 /sys/module/ipv6/parameters/disable
2026-05-15T18:06:57.192741147Z + grep -q 1 /proc/sys/net/ipv6/conf/all/disable_ipv6
2026-05-15T18:06:57.193610920Z + grep -q 1 /proc/sys/net/ipv6/conf/default/disable_ipv6
2026-05-15T18:06:57.194524122Z + set +x
2026-05-15T18:06:58.386392646Z [35] 2026/05/15 20:06:58.386008 [INF] Starting nats-server
2026-05-15T18:06:58.386417363Z [35] 2026/05/15 20:06:58.386086 [INF]   Version:  2.12.6
2026-05-15T18:06:58.386421724Z [35] 2026/05/15 20:06:58.386090 [INF]   Git:      [0e06390]
2026-05-15T18:06:58.386424977Z [35] 2026/05/15 20:06:58.386093 [INF]   Name:     NCOLICMWIBUHZ4GHJ42LFBYZQVGNGX2ACSFSHJ6RVH4WAGD5IH736WAA
2026-05-15T18:06:58.386428136Z [35] 2026/05/15 20:06:58.386102 [INF]   ID:       NCOLICMWIBUHZ4GHJ42LFBYZQVGNGX2ACSFSHJ6RVH4WAGD5IH736WAA
2026-05-15T18:06:58.386431284Z [35] 2026/05/15 20:06:58.386115 [INF] Using configuration file: /etc/nats.conf (sha256:bfa037b94ac399931a51e64559d5b8b099a1777b0832b8f5c14fee855e33b59c)
2026-05-15T18:06:58.387346679Z [35] 2026/05/15 20:06:58.386866 [INF] Listening for client connections on 127.0.0.1:4222
2026-05-15T18:06:58.387362708Z [35] 2026/05/15 20:06:58.386882 [INF] Server is ready
2026-05-15T18:06:58.387728376Z Janus version: 1400 (1.4.0)
2026-05-15T18:06:58.387736993Z Janus commit: aa86122d740f10f7731c4fa411a2473f58486e4e
2026-05-15T18:06:58.387740328Z Compiled on:  Tue Apr  7 09:40:09 UTC 2026
2026-05-15T18:06:58.387743328Z 
2026-05-15T18:06:58.387746215Z Logger plugins folder: /usr/local/lib/janus/loggers
2026-05-15T18:06:58.387749163Z ---------------------------------------------------
2026-05-15T18:06:58.387752068Z   Starting Meetecho Janus (WebRTC Server) v1.4.0
2026-05-15T18:06:58.387755013Z ---------------------------------------------------
2026-05-15T18:06:58.387767639Z 
2026-05-15T18:06:58.387863358Z Checking command line arguments...
2026-05-15T18:06:58.387869255Z Debug/log level is 3
2026-05-15T18:06:58.387872324Z Debug/log timestamps are disabled
2026-05-15T18:06:58.387875249Z Debug/log colors are disabled
2026-05-15T18:06:58.387878269Z [WARN] Janus is deployed on a private address (172.18.0.2) but you didn't specify any STUN server! Expect trouble if this is supposed to work over the internet and not just in a LAN...
2026-05-15T18:06:58.387923425Z main.go:177: Starting up version 2.1.1~docker/go1.26.1 as pid 36
2026-05-15T18:06:58.388016509Z main.go:184: Using a maximum of 4 CPUs
2026-05-15T18:06:58.389347579Z client.go:114: Connection established to nats://127.0.0.1:4222 (NCOLICMWIBUHZ4GHJ42LFBYZQVGNGX2ACSFSHJ6RVH4WAGD5IH736WAA)
2026-05-15T18:06:58.389368436Z common.go:208: WARNING: No GRPC server certificate and/or key configured, running unencrypted
2026-05-15T18:06:58.389425717Z common.go:210: WARNING: No GRPC CA configured, expecting unencrypted connections
2026-05-15T18:06:58.389781929Z backend_storage_static.go:73: Backend backend-1 added for https://vom-bruch.com/cloud/
2026-05-15T18:06:58.389789763Z hub.go:285: Using a maximum of 8 concurrent backend connections per host
2026-05-15T18:06:58.389793263Z hub.go:292: Using a timeout of 10s for backend connections
2026-05-15T18:06:58.389796418Z hub.go:325: No trusted proxies configured, only allowing for [127.0.0.0/8, ::1/128, 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16]
2026-05-15T18:06:58.389799632Z hub.go:366: Not using GeoIP database
2026-05-15T18:06:58.389924565Z hub.go:449: No candidates allowlist
2026-05-15T18:06:58.389930712Z hub.go:460: No candidates blocklist
2026-05-15T18:06:58.389933842Z settings.go:70: Maximum bandwidth 1 Mbps per publishing stream
2026-05-15T18:06:58.389936930Z settings.go:78: Maximum bandwidth 2 Mbps per screensharing stream
2026-05-15T18:06:58.390070677Z janus.go:182: Using a timeout of 10s for MCU requests
2026-05-15T18:06:58.390077153Z janus.go:194: No candidates allowlist
2026-05-15T18:06:58.390080337Z janus.go:206: No candidates blocklist
2026-05-15T18:06:58.390299901Z main.go:287: Could not initialize janus MCU (dial tcp 127.0.0.1:8188: connect: connection refused) will retry in 1s
2026-05-15T18:06:58.394444820Z [WARN] libcurl not available, Streaming plugin will not have RTSP support
2026-05-15T18:06:58.394464572Z [WARN] libogg not available, Streaming plugin will not have file-based Opus streaming
2026-05-15T18:06:58.395219237Z [ERR] [plugins/janus_streaming.c:janus_streaming_init:2784] Can't add 'ondemand' mountpoint 'file-ondemand-sample', unsupported format (we only support raw mu-Law and a-Law files right now)
2026-05-15T18:06:58.396500567Z [WARN] No Unix Sockets server started, giving up...
2026-05-15T18:06:58.396512702Z [WARN] The 'janus.transport.pfunix' plugin could not be initialized
2026-05-15T18:06:58.404682636Z Exec: /opt/eturnal/erts-15.2.6/bin/erlexec -noinput +Bd -boot /opt/eturnal/releases/1.12.2/start -mode embedded -boot_var SYSTEM_LIB_DIR /opt/eturnal/lib -config /opt/eturnal/releases/1.12.2/sys.config -args_file /opt/eturnal/releases/1.12.2/vm.args -erl_epmd_port 3470 -start_epmd false -- foreground
2026-05-15T18:06:58.404714051Z Root: /opt/eturnal
2026-05-15T18:06:58.404718132Z /opt/eturnal
2026-05-15T18:06:59.390786535Z settings.go:70: Maximum bandwidth 1 Mbps per publishing stream
2026-05-15T18:06:59.390809341Z settings.go:78: Maximum bandwidth 2 Mbps per screensharing stream
2026-05-15T18:06:59.390816811Z janus.go:182: Using a timeout of 10s for MCU requests
2026-05-15T18:06:59.390820095Z janus.go:194: No candidates allowlist
2026-05-15T18:06:59.390823103Z janus.go:206: No candidates blocklist
2026-05-15T18:06:59.391859192Z janus.go:516: Connected to Janus WebRTC Server 1.4.0 by Meetecho s.r.l.
2026-05-15T18:06:59.391874118Z janus.go:520: Found JANUS VideoRoom plugin 0.0.10 by Meetecho s.r.l.
2026-05-15T18:06:59.391877973Z janus.go:532: Plugin janus.eventhandler.wsevh not found, realtime usage will not be available
2026-05-15T18:06:59.391881262Z janus.go:535: Used dependencies: {Glib2:2.86.3 Jansson:2.14.1 Libnice:0.1.22 Libsrtp:libsrtp2 2.7.0 Libcurl: Crypto:OpenSSL 3.5.5 27 Jan 2026}
2026-05-15T18:06:59.391884553Z janus.go:540: Data channels are supported
2026-05-15T18:06:59.391887535Z janus.go:544: Full-Trickle is enabled
2026-05-15T18:06:59.392094169Z janus.go:551: Created Janus session 7854975440288990
2026-05-15T18:06:59.392305083Z janus.go:558: Created Janus handle 4653000161078929
2026-05-15T18:06:59.392316322Z main.go:319: Using janus MCU
2026-05-15T18:06:59.392390632Z hub.go:503: Using a timeout of 10s for MCU requests
2026-05-15T18:06:59.392396554Z backend_server.go:127: No IPs configured for the stats endpoint, only allowing access from [127.0.0.1/32, ::1/128]
2026-05-15T18:06:59.392505592Z main.go:389: Listening on 0.0.0.0:8081

and when you use the talk app you get things like:

2026-05-15T18:09:59.188176839Z client.go:325: Client from 192.168.0.1 has RTT of 1 ms (1.74989ms)
2026-05-15T18:09:59.199294127Z capabilities.go:141: Capabilities expired for https://vom-bruch.com/cloud/ocs/v2.php/cloud/capabilities, updating
2026-05-15T18:09:59.262433400Z capabilities.go:234: Received capabilities map[config:map[attachments:map[allowed:false] call:map[blur-virtual-background:false breakout-rooms:true can-enable-sip:false can-upload-background:false default-phone-region:AT enabled:true end-to-end-encryption:false grid-limit:19 grid-limit-enforced:false live-transcription:false live-transcription-target-language-id: live-translation:false max-duration:0 play-sounds:true predefined-backgrounds:[1_office.jpg 2_home.jpg 3_abstract.jpg 4_beach.jpg 5_park.jpg 6_theater.jpg 7_library.jpg 8_space_station.jpg] predefined-backgrounds-v2:[/cloud/apps/spreed/img/backgrounds/1_office.jpg /cloud/apps/spreed/img/backgrounds/2_home.jpg /cloud/apps/spreed/img/backgrounds/3_abstract.jpg /cloud/apps/spreed/img/backgrounds/4_beach.jpg /cloud/apps/spreed/img/backgrounds/5_park.jpg /cloud/apps/spreed/img/backgrounds/6_theater.jpg /cloud/apps/spreed/img/backgrounds/7_library.jpg /cloud/apps/spreed/img/backgrounds/8_space_station.jpg] recording:true recording-consent:0 sip-dialout-enabled:false sip-enabled:false start-without-media:false supported-reactions:[❤️ 🎉 👏 👋 👍 👎 🔥 😂 🤩 🤔 😲 😥]] chat:map[has-translation-providers:true has-translation-task-providers:true matterbridge-enabled:false max-length:32000 read-privacy:0 style:split summary-threshold:100 typing-privacy:0] conversations:map[can-create:false description-length:2000 force-passwords:false list-style:two-lines retention-event:28 retention-instant-meetings:1 retention-phone:7] experiments:map[enabled:0] federation:map[enabled:false incoming-enabled:false only-trusted-servers:true outgoing-enabled:false] permissions:map[default:246 max-custom:255 max-default:254] previews:map[max-gif-size:3.145728e+06] signaling:map[hello-v2-token-key:-----BEGIN PUBLIC KEY-----
2026-05-15T18:09:59.262481330Z MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE4mmz6DK+gD+WorMGK06i027eqTez
2026-05-15T18:09:59.262485815Z CAOjywm5HDmlcfemgSxnmxJlDk+VMjAcbvEhWbGYjOJHStRrsWOCwfAb0Q==

[szaimen]

Invalid TURN address vom-bruch.com/cloud:3478

Indeed this doesnt look right.

[szaimen]

Can you post the whole compose file you used foe the talk container here?

[Lawkss]

I think I fixed it by adding the following environment variable:

- TURN_DOMAIN=talkhpb.vom-bruch.com

name: 'hpb'

services:

  nc-talk:
    container_name: talk_hpb
    image: ghcr.io/nextcloud-releases/aio-talk:latest
    init: true
    ports:
      - 3478:3478/tcp
      - 3478:3478/udp
      - 8686:8081/tcp
    environment:
      - NC_DOMAIN=vom-bruch.com/cloud
      - TALK_HOST=talkhpb.vom-bruch.com
      - TURN_SECRET=CENSORED
      - SIGNALING_SECRET=CENSORED
      - TZ=Europe/Vienna
      - TALK_PORT=3478
      - INTERNAL_SECRET=CENSORED
      - TURN_DOMAIN=talkhpb.vom-bruch.com
    restart: unless-stopped

[szaimen]

So does it work now?

[Lawkss]

Yes, I made post about this in janus github, I guess it has to do with janus 1.4.1

[CreativePR]

I’m seeing what appears to be the same or a very similar issue after updating Nextcloud AIO to 33.0.3.

Environment / context:

• Nextcloud AIO: 33.0.3
• AIO Talk container: nextcloud-aio-talk
• Janus version in the container: 1.4.1
• Setup had been working for about 2 years before this update
• Nextcloud admin panel → Talk → High-performance backend showed: Error: Server responded with: 502

Container status showed:

nextcloud-aio-talk              Up ... (unhealthy)

The health check failed immediately on port 8081:

docker exec -it nextcloud-aio-talk bash -x /healthcheck.sh

+ '[' warn = debug ']'
+ nc -z 127.0.0.1 8081
+ exit 1

The Talk container logs repeatedly showed Janus failing to start because of the TURN hostname:

[ERR] [ice.c:janus_ice_set_turn_server:1277] Could not resolve <REDACTED_DOMAIN>...
[FATAL] [janus.c:main:5309] Invalid TURN address <REDACTED_DOMAIN>:3478
WARN exited: janus (exit status 1; not expected)
main.go:287: Could not initialize janus MCU (dial tcp 127.0.0.1:8188: connect: connection refused) will retry

However, DNS inside the same container worked:

docker exec -it nextcloud-aio-talk getent hosts <REDACTED_DOMAIN>
<REDACTED_PRIVATE_IP>     <REDACTED_DOMAIN>  <REDACTED_DOMAIN>

docker exec -it nextcloud-aio-talk dig +short <REDACTED_DOMAIN>
<REDACTED_PRIVATE_IP>

The generated Janus config was:

turn_server = "<REDACTED_DOMAIN>"
turn_port = 3478
turn_type = "udp"

As a temporary workaround, I changed only the Janus TURN server value to the resolved private IP:

docker exec -it nextcloud-aio-talk sh -c '
cp /conf/janus.jcfg /conf/janus.jcfg.bak
sed -i "s|turn_server = \".*\"|turn_server = \"<REDACTED_PRIVATE_IP>\"|" /conf/janus.jcfg
'

After that, Janus started and the health check passed:

+ nc -z 127.0.0.1 8081
Connection to 127.0.0.1 8081 port [tcp/tproxy] succeeded!
+ nc -z 127.0.0.1 8188
Connection to 127.0.0.1 8188 port [tcp/*] succeeded!
+ nc -z 127.0.0.1 4222
Connection to 127.0.0.1 4222 port [tcp/*] succeeded!
+ nc -z 127.0.0.1 3478
Connection to 127.0.0.1 3478 port [tcp/*] succeeded!
+ eturnalctl status
eturnal is running

Docker then showed:

nextcloud-aio-talk              Up ... (healthy)

I also tested rolling Docker back from 29.5.2 to 29.3.0 because Docker was updated around the same time, but the Janus/TURN hostname failure remained after the rollback. So this does not appear to be fixed by changing Docker versions.

This looks like a regression or behavior change in the updated AIO Talk / Janus image where Janus rejects the TURN hostname even though normal getent and dig resolution work inside the same container.

Is there a supported persistent way in AIO to set TURN_DOMAIN to a value Janus accepts, or should AIO be generating the Janus TURN config differently here?