[PR #5038] [client] add option to prevent remove peers and routes when management services are not available #26922

New Issue

saavagebueno · 2026-08-05T07:07:58-04:00

saavagebueno commented

2026-08-05 07:07:58 -04:00

Original Pull Request: https://github.com/netbirdio/netbird/pull/5038

State: closed
Merged: No

Describe your changes

NetBird clients rely on the management service and signal service to establish and maintain connections.
When the management service is temporary unavailable, a NetBird client is unable to re-establish existing connections after an ICE disconnect.

Introduce a new environment variable option: NB_KEEP_CONNECTION_ON_MANAGEMENT_DOWN.

When this flag is enabled and the management service is unavailable:

The client will not remove peers after an ICE disconnect.
If a network route cannot select a new peer, the client will retain the existing peer instead of removing it.

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)

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Documentation

Select exactly one:

I added/updated documentation for this change
Documentation is not needed for this change (explain why)

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Paste the PR link from https://github.com/netbirdio/docs here:

Summary by CodeRabbit

Bug Fixes
- Improved connection stability during management server maintenance by preserving active endpoints and routes under specific conditions, preventing unnecessary disconnections when the management service is temporarily unavailable.
New Features
- Added configuration option to keep connections alive during management downtime scenarios.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

**Original Pull Request:** https://github.com/netbirdio/netbird/pull/5038 **State:** closed **Merged:** No --- ## Describe your changes NetBird clients rely on the **management service** and **signal service** to establish and maintain connections. When the management service is temporary unavailable, a NetBird client is unable to re-establish existing connections after an ICE disconnect. Introduce a new environment variable option: `NB_KEEP_CONNECTION_ON_MANAGEMENT_DOWN`. When this flag is enabled and the management service is unavailable: * The client will **not remove peers** after an ICE disconnect. * If a network route cannot select a new peer, the client will **retain the existing peer** instead of removing it. ## 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) > 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). ## Documentation Select exactly one: - [ ] I added/updated documentation for this change - [x] Documentation is **not needed** for this change (explain why) ### Docs PR URL (required if "docs added" is checked) Paste the PR link from https://github.com/netbirdio/docs here:  ## Summary by CodeRabbit * **Bug Fixes** * Improved connection stability during management server maintenance by preserving active endpoints and routes under specific conditions, preventing unnecessary disconnections when the management service is temporarily unavailable. * **New Features** * Added configuration option to keep connections alive during management downtime scenarios. <sub>✏️ Tip: You can customize this high-level summary in your review settings.</sub>

saavagebueno added the pull-request label 2026-08-05 07:07:58 -04:00

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Reference: DYNR/netbird#26922