[PR #4297] [server] Add health check HTTP endpoint for Relay server #4182

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saavagebueno · 2025-11-20T08:07:53-05:00

saavagebueno commented

2025-11-20 08:07:53 -05:00

Original Pull Request: https://github.com/netbirdio/netbird/pull/4297

State: closed
Merged: Yes

Describe your changes

The health check endpoint listens on a dedicated HTTP server.
By default, it is available at 0.0.0.0:9000/health. This can be configured using the --health-listen-address flag.

The results are cached for 3 seconds to avoid excessive calls.

The health check performs the following:

Checks the number of active listeners.
Validates each listener via WebSocket and QUIC dials, including TLS certificate verification.

Issue ticket number and link

Stack

Checklist

Is it a bug fix
Is a typo/documentation fix
Is a feature enhancement
It is a refactor
Created tests that fail without the change (if possible)
Extended the README / documentation, if necessary

By submitting this pull request, you confirm that you have read and agree to the terms of the Contributor License Agreement.

**Original Pull Request:** https://github.com/netbirdio/netbird/pull/4297 **State:** closed **Merged:** Yes --- ## Describe your changes The health check endpoint listens on a dedicated HTTP server. By default, it is available at` 0.0.0.0:9000/health`. This can be configured using the `--health-listen-address` flag. The results are cached for 3 seconds to avoid excessive calls. The health check performs the following: - Checks the number of active listeners. - Validates each listener via WebSocket and QUIC dials, including TLS certificate verification. ## Issue ticket number and link ## Stack  ### Checklist - [ ] Is it a bug fix - [ ] Is a typo/documentation fix - [x] Is a feature enhancement - [ ] It is a refactor - [ ] Created tests that fail without the change (if possible) - [ ] Extended the README / documentation, if necessary > By submitting this pull request, you confirm that you have read and agree to the terms of the [Contributor License Agreement](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT.md).

saavagebueno added the pull-request label 2025-11-20 08:07:53 -05:00

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Reference: SVI/netbird#4182