fix: do not inject empty sources/destinations into resource-targeted policy rules - #68
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…policy rules The configure-role resolver stamped sources and destinations onto every policy rule, defaulting to []. A rule defined only with source_resource or destination_resource therefore reached the API carrying both a resource reference and an empty group list, which the API rejects with 422 'specify either destinations or destination resources, not both'. This broke both creating such policies from YAML and the export->edit->apply round trip for existing ones. Resolve group references only when the rule actually defines them, so resource-targeted rules pass through without phantom empty lists. Fixes netbirdio#67
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📝 WalkthroughWalkthroughPolicy rule resolution now omits absent or empty group references. Resource-targeted rules pass through without conflicting empty lists, while group-targeted rules continue to resolve group names and report unknown references. ChangesPolicy rule resolution
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: 🟡 Moderate · up to Resource-targeted policy rules that explicitly include empty source or destination lists can still be rejected by the API, so the fix is not merge-ready until those empty keys are removed before submission. Poem
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Inline comments:
In `@plugins/filter/netbird_resolve.py`:
- Around line 128-143: Update the rule-resolution flow around resolved_rule to
remove sources and destinations whenever their values are explicitly empty,
including when destination_resource is present, while preserving non-empty name
resolution; add a regression test covering rules with explicitly empty sources
and destinations.
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changelogs/fragments/fix-policy-resource-rule-empty-groups.ymlplugins/filter/netbird_resolve.pytests/unit/plugins/filter/test_netbird_resolve_policy.py
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…rgeted rules An explicit 'destinations: []' (or null) written alongside destination_resource survived the copy into the resolved rule, so the request still carried both fields and the API still rejected it. Empty group lists are never valid to the API; remove the keys instead of passing them through.
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What
A policy rule that targets a resource (
source_resource/destination_resource) fails to apply through the configure role with:This affects both creating such a policy from YAML and any update of an existing one (export → edit → apply), because the resolver unconditionally stamped
sourcesanddestinationsonto every rule, defaulting to[]. The API rejects a rule carrying both a resource reference and a group list — even an empty one.Fixes #67
Why
_resolve_policyalways assignedresolved_rule['sources']andresolved_rule['destinations']fromrule.get(..., []). For a rule defined only with the resource form (exactly what the export template writes for peer-sourced policies, and what a user writes by hand for host/domain targets), that injected phantom empty lists into the request body.Group references are now resolved only when the rule actually defines them; resource-targeted rules pass through without the empty lists. Rules that do use
sources/destinationsresolve exactly as before, including unknown-name errors and pre-flight missing-ref collection.Changes
plugins/filter/netbird_resolve.py: guardsources/destinationsresolution on the key being present and non-emptytests/unit/plugins/filter/test_netbird_resolve_policy.py: new unit tests covering resource-targeted rules (no injected keys, refs pass through), group-targeted rules (unchanged resolution), and unknown-name handlingSummary by CodeRabbit
Bug Fixes
Tests