[GH-ISSUE #4399] Container healthchecks for Relay and Signal container #9353

New Issue

saavagebueno · 2026-08-05T01:21:49-04:00

saavagebueno commented

2026-08-05 01:21:49 -04:00

Originally created by @cin3m on GitHub (Aug 25, 2025).
Original GitHub issue: https://github.com/netbirdio/netbird/issues/4399

Describe the problem

I'm trying to implement the health checks of the relay component. Is there any documentation how to use the health endpoint? If I try to wget some data from within the container I'll receive:
wget: server returned error: HTTP/1.1 503 Service Unavailable

If I configure the port to be accessible from the outside the container responds with
{"status":"unhealthy","timestamp":"2025-08-25T08:47:38.185667729Z","listeners":["ws"],"certificate_valid":false}

The same message gets returned, if I try to curl from within the container:
{"status":"unhealthy","timestamp":"2025-08-25T18:13:08.979364057Z","listeners":["ws"],"certificate_valid":false}

Is the unhealthy status a result of the missing certificate?

Furthermore, is there any health checking mechanism for the signal component?

To Reproduce

Steps to reproduce the behavior:

docker exec into the relay
execute wget --no-verbose --tries=1 --spider http://localhost:9000/health

Expected behavior

More information regarding the health check system.

Are you using NetBird Cloud?

No.

NetBird version

0.55.1

Is any other VPN software installed?

No

Debug output
N/A

Screenshots

N/A

Additional context

N/A

Have you tried these troubleshooting steps?

Reviewed client troubleshooting (if applicable)
Checked for newer NetBird versions
Searched for similar issues on GitHub (including closed ones)
[N/A] Restarted the NetBird client
[N/A] Disabled other VPN software
[N/A] Checked firewall settings

Originally created by @cin3m on GitHub (Aug 25, 2025). Original GitHub issue: https://github.com/netbirdio/netbird/issues/4399 **Describe the problem** I'm trying to implement the health checks of the relay component. Is there any documentation how to use the health endpoint? If I try to wget some data from within the container I'll receive: `wget: server returned error: HTTP/1.1 503 Service Unavailable` If I configure the port to be accessible from the outside the container responds with `{"status":"unhealthy","timestamp":"2025-08-25T08:47:38.185667729Z","listeners":["ws"],"certificate_valid":false}` The same message gets returned, if I try to curl from within the container: `{"status":"unhealthy","timestamp":"2025-08-25T18:13:08.979364057Z","listeners":["ws"],"certificate_valid":false}` Is the unhealthy status a result of the missing certificate? Furthermore, is there any health checking mechanism for the signal component? **To Reproduce** Steps to reproduce the behavior: 1. docker exec into the relay 2. execute `wget --no-verbose --tries=1 --spider http://localhost:9000/health` **Expected behavior** More information regarding the health check system. **Are you using NetBird Cloud?** No. **NetBird version** `0.55.1` **Is any other VPN software installed?** No **Debug output** N/A **Screenshots** N/A **Additional context** N/A **Have you tried these troubleshooting steps?** - [x] Reviewed [client troubleshooting](https://docs.netbird.io/how-to/troubleshooting-client) (if applicable) - [x] Checked for newer NetBird versions - [x] Searched for similar issues on GitHub (including closed ones) - [N/A] Restarted the NetBird client - [N/A] Disabled other VPN software - [N/A] Checked firewall settings

saavagebueno added the triage-needed label 2026-08-05 01:21:49 -04:00

saavagebueno commented

2026-08-05 01:21:49 -04:00

@reimarstier commented on GitHub (Feb 17, 2026):

I've added the following healthcheck to my deployments in the meantime until there is a proper way to do this:

services:
  netbird-signal:
    image: netbirdio/signal
    healthcheck:
      # The following checks the websocket proxy port, the other port 10000 is disregarded entirely
      # expected return code: HTTP/1.1 405 Method Not Allowed
      test: [ "CMD", "sh", "-c", "wget --proxy off --no-verbose --tries=1 --spider http://localhost:80 2>&1 | grep 405" ]

  netbird-relay:
    image: netbirdio/relay
    environment:
      - NB_LOG_LEVEL=info
      - NB_LISTEN_ADDRESS=:33080  # port used below
    healthcheck:
      # expected return code: HTTP/1.1 426 Upgrade Required
      test: [ "CMD", "sh", "-c", "wget --proxy off --no-verbose --tries=1 --spider http://localhost:33080/relay 2>&1 | grep 426" ]

Using the shell command to be able to pipe and grep the output of wget. Not ideal, but it provides some insights where there are none right now.

@reimarstier commented on GitHub (Feb 17, 2026): I've added the following healthcheck to my deployments in the meantime until there is a proper way to do this: ``` services: netbird-signal: image: netbirdio/signal healthcheck: # The following checks the websocket proxy port, the other port 10000 is disregarded entirely # expected return code: HTTP/1.1 405 Method Not Allowed test: [ "CMD", "sh", "-c", "wget --proxy off --no-verbose --tries=1 --spider http://localhost:80 2>&1 | grep 405" ] netbird-relay: image: netbirdio/relay environment: - NB_LOG_LEVEL=info - NB_LISTEN_ADDRESS=:33080 # port used below healthcheck: # expected return code: HTTP/1.1 426 Upgrade Required test: [ "CMD", "sh", "-c", "wget --proxy off --no-verbose --tries=1 --spider http://localhost:33080/relay 2>&1 | grep 426" ] ``` Using the shell command to be able to pipe and grep the output of wget. Not ideal, but it provides some insights where there are none right now.

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Reference: DYNR/netbird#9353