feat(authz): migrate v2 decisioning to targeted entitleable lookups - #3912
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alkalescent wants to merge 3 commits into
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feat(authz): migrate v2 decisioning to targeted entitleable lookups#3912alkalescent wants to merge 3 commits into
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Replace the v2 PDP full-policy load with per-request targeted lookups via MatchSubjectMappings and GetEntitleableAttributesByFqns. - add fetchEntitleableAttributes to build attribute definitions and subject mappings from the entitleable API, batched at the proto max_items limit - build a request-scoped PolicyDecisionPoint for GetEntitlements and GetDecision/MultiResource/Bulk from only the needed value FQNs - keep registered resources, obligations, and dynamic value mappings fully loaded; extract buildRegisteredResourceValuesByFQN for reuse - stop caching attributes and subject mappings in EntitlementPolicyCache Signed-off-by: Krish Suchak <suchak.krish@gmail.com>
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📝 WalkthroughWalkthroughThe change stops caching entitlement attributes and subject mappings. ChangesEntitlement attribute resolution
Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: 🟠 High · up to A request containing both known and unknown resources can currently deny the known resources as well, causing valid authorization requests to fail. The lookup handling must preserve known-resource decisions before this PR is ready to merge. Sequence Diagram(s)sequenceDiagram
participant JustInTimePDP
participant fetchEntitleableAttributes
participant AttributesService
participant PolicyDecisionPoint
JustInTimePDP->>fetchEntitleableAttributes: request required value FQNs
fetchEntitleableAttributes->>AttributesService: batch attribute lookup
AttributesService-->>fetchEntitleableAttributes: definitions, values, and subject mappings
fetchEntitleableAttributes-->>JustInTimePDP: request-scoped policy attributes
JustInTimePDP->>PolicyDecisionPoint: construct targeted PDP
PolicyDecisionPoint-->>JustInTimePDP: evaluate decision or entitlement
Suggested reviewers: Poem
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches📝 Generate docstrings
🧪 Generate unit tests (beta)
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Benchmark results, click to expandBenchmark authorization.GetDecisions Results:
Benchmark authorization.v2.GetMultiResourceDecision Results:
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3 tasks
… targeted path Direct entitlements and dynamic value mappings entitle attribute values that may not exist in policy, which targeted GetEntitleableAttributesByFqns lookups cannot resolve (a non-existent value FQN errors with NotFound). Fall back to the full policy load when either experimental flag is enabled, mirroring the v1 custom-rego fallback. Also degrade a NotFound from a targeted fetch to a per-resource deny instead of an internal error, matching the prior behavior for unknown resource FQNs. Signed-off-by: Krish Suchak <suchak.krish@gmail.com>
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Benchmark results, click to expandBenchmark authorization.GetDecisions Results:
Benchmark authorization.v2.GetMultiResourceDecision Results:
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TDF3 Benchmark Results:
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alkalescent
marked this pull request as ready for review
August 24, 2026 14:22
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Actionable comments posted: 1
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Inline comments:
In `@service/internal/access/v2/just_in_time_pdp.go`:
- Around line 412-423: The CodeNotFound branch in the resourceValueFQNs lookup
must preserve known resource definitions instead of returning an empty PDP for
the entire batch. Retry or split the failed lookup to identify unknown FQNs,
retain definitions for known FQNs, and deny only unknown resources; add a
decision test covering one known and one unknown resource FQN.
Apply the same fix in `@service/internal/access/v2/entitleable_test.go` around
lines 11 - 16.
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Run ID: 991d4fd5-1cb0-4a9b-97c6-4467c0eb3d4e
📒 Files selected for processing (6)
service/authorization/v2/cache.goservice/internal/access/v2/entitleable.goservice/internal/access/v2/entitleable_test.goservice/internal/access/v2/just_in_time_pdp.goservice/internal/access/v2/just_in_time_pdp_targeted_test.goservice/internal/access/v2/pdp.go
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Address review feedback on the v2 targeted decisioning path. - On a batch NotFound from GetEntitleableAttributesByFqns, retry each FQN individually so a multi-resource request that mixes known and unknown FQNs still decides the known resources; only genuinely missing FQNs are skipped and denied per-resource (previously the whole batch built an empty PDP and denied every resource). - In full-policy fallback mode (direct entitlements / dynamic value mappings), read attributes and subject mappings from the ready store (refresh cache when enabled) instead of a fresh retriever, and re-enable caching of attributes and subject mappings, so a cache-enabled deployment no longer re-scans both policy endpoints on every request. Signed-off-by: Krish Suchak <suchak.krish@gmail.com>
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Benchmark results, click to expandBenchmark authorization.GetDecisions Results:
Benchmark authorization.v2.GetMultiResourceDecision Results:
Benchmark Statistics
Bulk Benchmark Results
TDF3 Benchmark Results:
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Proposed Changes
Migrate the v2 authorization decisioning path off the full-policy load onto targeted, per-request lookups via
MatchSubjectMappings+GetEntitleableAttributesByFqns, mirroring the v1 change.fetchEntitleableAttributesto build attribute definitions and subject mappings from the entitleable API, batched at the protomax_itemslimit (250), with hierarchy sibling expansion and no subject-mapping double-countPolicyDecisionPointforGetEntitlementsandGetDecision/GetDecisionMultiResource/GetDecisionBulk(including the registered-resource-as-entity branches) from only the value FQNs each request needsbuildRegisteredResourceValuesByFQNfor reuse by the PDP and obligations wiringEntitlementPolicyCache(they are now fetched per request)Behavior is preserved for strict namespaced mode (the PDP is built from entitleable-response subject mappings, which carry their namespace), hierarchy, obligations, registered resources, and direct entitlements. Unknown resource FQNs continue to deny per-resource.
Checklist
Testing Instructions
cd service && go test -race ./internal/access/... ./authorization/...golangci-lint run ./internal/access/... ./authorization/...Summary by CodeRabbit
New Features
Bug Fixes