[PR #6761] [management] use IP-octetless DNS name for ephemeral nodes if available #28921

New Issue

saavagebueno · 2026-08-05T08:07:09-04:00

saavagebueno commented

2026-08-05 08:07:09 -04:00

📋 Pull Request Information

Original PR: https://github.com/netbirdio/netbird/pull/6761
Author: @lotheac
Created: 7/14/2026
Status: 🔄 Open

Base: main ← Head: push-rpzmynvtqqsq

📝 Commits (1)

a331bbf [management] use IP-octetless DNS name for ephemeral nodes if available

📊 Changes

1 file changed (+1 additions, -1 deletions)

View changed files

📝 management/server/peer.go (+1 -1)

📄 Description

Describe your changes

We have an environment with lots of ephemeral peers; eg. autoscaled kube nodes. Sometimes, though, an administrator might need to connect to one of those via ssh; in that situation, it's much easier if the same hostname that is visible elsewhere (eg. kubectl get node) "just works", rather than having to discover the ephemeral peer name via netbird status -d|grep.

Issue ticket number and link

Fixes: https://github.com/netbirdio/netbird/issues/5043

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)
This change does not modify the public API, gRPC protocols, functionality behavior, CLI / service flags, or introduce a new feature — OR I have discussed it with the NetBird team beforehand (link the issue / Slack thread in the description). See CONTRIBUTING.md.

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

Documentation

Select exactly one:

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

I don't think ephemeral peers are documented to use suffixed DNS names currently, and it would be strange to me if anyone was relying on this behavior.

Docs PR URL (required if "docs added" is checked)

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

https://github.com/netbirdio/docs/pull/__

Summary by CodeRabbit

Bug Fixes
- Improved DNS label selection when adding ephemeral peers.
- Ephemeral peers now use the parsed hostname on the initial allocation attempt and fall back to an IP-derived label only when retrying.

_{🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.}

## 📋 Pull Request Information **Original PR:** https://github.com/netbirdio/netbird/pull/6761 **Author:** [@lotheac](https://github.com/lotheac) **Created:** 7/14/2026 **Status:** 🔄 Open **Base:** `main` ← **Head:** `push-rpzmynvtqqsq` --- ### 📝 Commits (1) - [`a331bbf`](https://github.com/netbirdio/netbird/commit/a331bbff86e57bfb94b4ce66cd3d1ad6ff54b7e9) [management] use IP-octetless DNS name for ephemeral nodes if available ### 📊 Changes **1 file changed** (+1 additions, -1 deletions) <details> <summary>View changed files</summary> 📝 `management/server/peer.go` (+1 -1) </details> ### 📄 Description ## Describe your changes We have an environment with lots of ephemeral peers; eg. autoscaled kube nodes. Sometimes, though, an administrator might need to connect to one of those via ssh; in that situation, it's much easier if the same hostname that is visible elsewhere (eg. kubectl get node) "just works", rather than having to discover the ephemeral peer name via `netbird status -d|grep`. ## Issue ticket number and link Fixes: https://github.com/netbirdio/netbird/issues/5043 ## 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) - [X] This change does **not** modify the public API, gRPC protocols, functionality behavior, CLI / service flags, or introduce a new feature — **OR** I have discussed it with the NetBird team beforehand (link the issue / Slack thread in the description). See [CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first). > 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) I don't think ephemeral peers are documented to use suffixed DNS names currently, and it would be strange to me if anyone was relying on this behavior. ### Docs PR URL (required if "docs added" is checked) Paste the PR link from https://github.com/netbirdio/docs here: https://github.com/netbirdio/docs/pull/__  ## Summary by CodeRabbit * **Bug Fixes** * Improved DNS label selection when adding ephemeral peers. * Ephemeral peers now use the parsed hostname on the initial allocation attempt and fall back to an IP-derived label only when retrying.  --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>

saavagebueno added the pull-request label 2026-08-05 08:07:09 -04:00

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Reference: DYNR/netbird#28921