[PR #4294] [misc]: Factorize SetFlagsFromEnvVars and support credentials #4180

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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/4294

State: open
Merged: No

Describe your changes

The code for setting up command flags values from environment variables was copied in three different places, this puts the helper function in the util package so that every component can use it. Furthermore, it now supports reading values from files in $CREDENTIALS_DIRECTORY, which allows direct integration with systemd's LoadCredential mechanism (but any platform can define such a variable and pass values as files).

Note however that it removes support from reading values from variables of the form WT_... which is very legacy.

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/4294 **State:** open **Merged:** No --- ## Describe your changes The code for setting up command flags values from environment variables was copied in three different places, this puts the helper function in the util package so that every component can use it. Furthermore, it now supports reading values from files in `$CREDENTIALS_DIRECTORY`, which allows direct integration with systemd's `LoadCredential` mechanism (but any platform can define such a variable and pass values as files). Note however that it removes support from reading values from variables of the form `WT_...` which is very legacy. ## Issue ticket number and link ## Stack  ### Checklist - [ ] Is it a bug fix - [ ] Is a typo/documentation fix - [x] Is a feature enhancement - [x] 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#4180