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fix(authz): reuse compiled policy snapshots #3988

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a40cd95
perf(authz): reuse compiled policy snapshots
strantalis Sep 5, 2026
09162da
docs(authz): preserve configuration table formatting
strantalis Sep 5, 2026
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8 changes: 8 additions & 0 deletions docs/Configuring.md
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Original file line number Diff line number Diff line change
Expand Up @@ -488,6 +488,14 @@ Root level key `authorization`
| `request_limits.get_decision_multi_resource_resources_max` | Maximum resources allowed in `GetDecisionMultiResourceRequest` | `1000` | |
| `request_limits.get_decision_bulk_decision_requests_max` | Maximum decision requests allowed in `GetDecisionBulkRequest` | `200` | |

Authorization v2 compiles registered-resource and obligation indexes once per cache
refresh and shares the completed snapshot across requests. The first successful
refresh is shared by concurrent callers. A failed refresh retains the last successful
snapshot, so policy changes become visible after a successful refresh. Caching remains
disabled by default. Attributes and subject mappings are refreshed only when direct
entitlements or dynamic value mappings are enabled; ordinary decisions fetch their
required attributes directly from the policy service.

#### Example: Authorization v1

```yaml
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11 changes: 3 additions & 8 deletions service/authorization/v2/authorization.go
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Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,6 @@ import (
"github.com/opentdf/platform/service/internal/access/v2"
"github.com/opentdf/platform/service/logger"
ctxAuth "github.com/opentdf/platform/service/pkg/auth"
"github.com/opentdf/platform/service/pkg/cache"
"github.com/opentdf/platform/service/pkg/serviceregistry"
"go.opentelemetry.io/otel/trace"
"google.golang.org/protobuf/types/known/wrapperspb"
Expand Down Expand Up @@ -85,20 +84,16 @@ func NewRegistration() *serviceregistry.Service[authzV2Connect.AuthorizationServ
return as, nil
}

cacheClient, err := srp.NewCacheClient(cache.Options{})
if err != nil || cacheClient == nil {
l.Error("failed to create platform cache client", slog.Any("error", err))
panic(fmt.Errorf("failed to create platform cache client: %w", err))
}

refreshInterval, err := time.ParseDuration(authZCfg.Cache.RefreshInterval)
if err != nil {
l.Error("failed to parse entitlement policy cache refresh interval", slog.Any("error", err))
panic(fmt.Errorf("failed to parse entitlement policy cache refresh interval [%s]: %w", authZCfg.Cache.RefreshInterval, err))
}

retriever := access.NewEntitlementPolicyRetriever(as.sdk)
as.cache, err = NewEntitlementPolicyCache(context.Background(), l, retriever, cacheClient, refreshInterval, authZCfg.AllowDynamicValueMappings)
as.cache, err = NewEntitlementPolicyCache(context.Background(), l, retriever, refreshInterval, access.PolicyOptions{
AllowDirectEntitlements: authZCfg.AllowDirectEntitlements, AllowDynamicValueMappings: authZCfg.AllowDynamicValueMappings, NamespacedPolicy: authZCfg.EnforceNamespacedEntitlements,
})
if err != nil {
l.Error("failed to create entitlement policy cache", slog.Any("error", err))
panic(fmt.Errorf("failed to create entitlement policy cache: %w", err))
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