elsa-core/specs/008-diagnostics-otel/data-model.md
Sipke Schoorstra 842cf7c162
[codex] Fix console log metadata and type resolution (#7542)
* Avoid null endpoint DTO metadata in tests

* Enforce console logs hub read permission

* Remove unused console logs hub import

* Support mapped endpoint metadata in auth tests

* Reduce console log capture throughput impact

* Address Copilot console logs review

* Refactor task scheduling to support tenant-level background work and enhance logging functionality.

* Introduce ConsoleStreamHook for stdout/stderr tee and enhance logging validation. Adjust test cases and startup warnings for distributed lock provider usage.

* Refactor console logging pipeline with capture optimization and new ConsoleLogsHost; update tests accordingly.

* Add Ansi SGR parser for console logs and associated unit tests

* Remove ANSI color renderings and parsers; integrate ConsoleLogScopeAccessor for improved logging context with workflow instance ID support.

* Address console logs code quality feedback

* Address PR review feedback

* Preserve console logs extension points

* Stabilize console logs host lifecycle

* Address final automated review comments

* Tighten console log capture shutdown

* Address console log review feedback

* Address follow-up review feedback

* Cover final review feedback

* Avoid recursive console provider initialization

* Guard console host lease shutdown

* Preserve console log scope and provider lifetime

* Correlate console log scope fallback

* Tighten console scope correlation

* Expose host services during provider construction

* Redact ANSI-normalized console lines

* Add OpenTelemetry diagnostics backend foundation

* Add OTLP HTTP ingestion parsing

* Document OpenTelemetry diagnostics setup

* Enforce OpenTelemetry hub permissions

* Remove `ConsoleCaptureTee` and related services and tests

* Add OpenTelemetry HTTP ingestion integration test

* Use pipeline contributors for console log context

* Update CShells package versions to 0.0.24-preview.132

* Add OpenTelemetry ingestion security tests

* Add OpenTelemetry API authorization tests

* Filter live console logs by workflow instance

* Add OpenTelemetry hub tests

* Add OpenTelemetry gRPC metadata hook

* Assert OpenTelemetry workflow tags survive ingestion

* Mark OpenTelemetry core build verified

* Enhance console logging with activity execution metadata and extend test coverage.

* Address console logs stream consumption comment

* Wire OpenTelemetry diagnostics into core sample

* Address Core diagnostics review feedback

* Address Core Copilot follow-up feedback

* Add OpenTelemetry metric instrument names

* Address Core Copilot provider feedback

* Address Core Copilot diagnostics follow-up

* Address Core Copilot live feed feedback

* Address Core Copilot store feedback

* Integrate OpenTelemetry for logging, tracing, and metrics in ModularServer and update launch settings and docker-compose configuration.

* Refactor to replace `ConsoleLogStream.Core` with `ConsoleLogStreaming.Core` across codebase and update `ConsoleStreamHook` installation.

* Add diagnostics OpenTelemetry backend

* Fix OpenTelemetry live hub subscription

* Fix modular OpenTelemetry exporter endpoints

* Add CShells logging configuration in appsettings.json

* Remove obsolete unit tests and helper classes

* Restore default activity exception handling

* Simplify type serialization and alias management

This commit refactors the internal type serialization and alias management system to reduce boilerplate, improve robustness, and simplify the developer experience:

-   Removed numerous explicit `ExpressionOptions` type alias registrations across various modules.
-   Updated `TypeJsonConverter` and polymorphic serialization to reliably handle types using assembly-qualified names when a short alias is not explicitly registered.
-   Streamlined `ExcludeFromHashConverter` to strictly adhere to `ExcludeFromHashAttribute` for hash calculations, removing complex `JsonIgnoreCondition` logic.
-   Eliminated several helper classes (`WorkflowJsonTypeResolver`, `WorkflowTypeValidator`, `IWorkflowTypeRegistry`, `WorkflowFactoryDictionary`, `JavaScriptExceptionTypeAliasRegistrar`, `WorkflowRuntimeTypeAliasRegistrar`) and their associated unit tests, simplifying the codebase.

Additionally, this commit introduces a comprehensive markdown document (`product-website-feature-source.md`) outlining Elsa's core features, Studio capabilities, extension ecosystem, and architectural selling points, intended as source material for the product website.

* Refine type serialization for improved robustness and alias handling

This commit further enhances the type serialization and deserialization mechanisms:

*   Centralizes type resolution and alias management through `IWellKnownTypeRegistry` and `WorkflowJsonTypeResolver`.
*   Prioritizes registered type aliases when serializing type metadata in `PolymorphicObjectConverter`, resulting in more concise JSON output.
*   Enhances deserialization in `PolymorphicObjectConverter` and `VariableMapper` to gracefully handle unknown or non-instantiable types, providing fallbacks and logging warnings.
*   Simplifies `TypeJsonConverter` by delegating complex type resolution logic to the `WorkflowJsonTypeResolver`.
*   Adds `JsonArray` to the well-known type aliases for direct recognition.

* Fix console logs packaging and workflow type resolution

* Fix console log metadata and type resolution

* Address Copilot review feedback

* Enhance type resolution, improve console log handling, and update tests

- Streamlined `WorkflowDictionaryExtensions` for better workflow registration validation.
- Refined `ConsoleLogsAuthorizationTests` with the new `SetJsonRequest` helper to improve test requests handling.
- Updated `OrderDefinition` to ignore JSON serialization for `KeySelector`.
- Enhanced `WorkflowRuntimeFeature` for improved workflow registration and type alias configuration.
- Added tests to ensure `ConsoleLogProvider` metadata filtration in various scenarios.
- Improved type serialization logic in `WorkflowJsonTypeResolver`.
- Updated README to fix references related to diagnostics.
- Optimized `ExcludeFromHashConverter` for property serialization conditions.
- Modified `TriggerIndexer` for streamlined trigger management.
- Tested payload checks in `PublishEventTests`.
- Adjusted `Endpoint` in `ConsoleLogs` for automatic JSON request handling.
- Ensured registration of workflow type aliases in `WorkflowsFeature`.

* Restore CLR workflow registration compatibility

* Align JSON island serialization fixtures

* Add Console Logs Services and Enhance Endpoint Handling

- Introduced `ActivityExecutionsEndpointTests` to validate route exposure.
- Added `ConsoleLogCaptureHostedService` for console log streaming.
- Implemented `ConsoleStreamJsonConverter` for JSON conversion of console streams.
- Developed `ElsaConsoleLogRecentBuffer` to handle recent log buffering.
- Updated `ConsoleLogsAuthorizationTests` with new test cases for stream filter mapping.
- Consolidated console log provider dependencies and registration, including recent buffering.
- Enhanced `ElsaConsoleLogProvider` to use recent buffer for filtering.
- Adjusted `Program.cs` for streamlined logging service setup.

* Enhance type resolution and test coverage; streamline console log integration

- Added `ConsoleStreamHook` for streamlined log streaming.
- Updated `WorkflowJsonTypeResolverTests` to improve type resolution and test new scenarios.
- Simplified type resolution by removing trusted assembly checks.

* Fix CI smoke and package restore failures

* Fix Docker smoke image project paths

* Fix Docker Python runtime packages

* Fix Docker CA smoke teardown

* Refresh Elsa roadmap

* Implement background processors and mediation coordination

- Added `BackgroundCommandProcessor`, `BackgroundJobProcessor`, and `BackgroundNotificationProcessor` classes for handling commands, jobs, and notifications, respectively.
- Introduced `MediatorBackgroundProcessingCoordinator` to coordinate the execution of all background processors.
- Implemented `MediatorBackgroundTask` for wrapping `MediatorBackgroundProcessingCoordinator` in `BackgroundTask`.
- Added unit tests for `MediatorBackgroundTask` to ensure proper start and stop behavior.
- Refactored `BackgroundCommandSenderHostedService` to utilize `BackgroundCommandProcessor`.
- Introduced 'elsa-roadmap-refresh' skill configuration for roadmap updates.

* Address workflow type resolution review feedback

* Address follow-up review feedback

* Restore recent console logs execute path

* Address Copilot follow-up review

* Decouple workflow JSON aliases from expressions

* Fix workflow management unit test setup

* Fix console logs recent endpoint handler shape

* Respect workflow JSON strict type aliases

* Remove unused console log contracts reference

* Address Copilot review feedback

* Address Copilot follow-up comments

* Synchronize ring buffer dropped count

* Address background processor strategy replay
2026-05-30 22:52:01 +02:00

4.2 KiB

Data Model: Diagnostics OpenTelemetry

Telemetry Resource

Field Notes
ResourceKey Stable key derived from service name, instance ID, and resource attributes.
ServiceName From service.name or OTEL_SERVICE_NAME; fallback is unknown_service.
ServiceInstanceId From service.instance.id when present.
ServiceVersion From service.version when present.
DeploymentEnvironment From deployment.environment when present.
Attributes Redacted resource attributes.
FirstSeen, LastSeen Backend receive timestamps.
Status Active, stale, or disconnected.

Telemetry Trace

Field Notes
TraceId Required trace identifier.
RootSpanId Root span when known.
Name Root span name or synthesized trace label.
ResourceKeys Participating resources.
StartTime, EndTime, Duration Derived from spans.
Status Ok, error, unset, or mixed.
SpanCount, ErrorCount Derived counters.
WorkflowInstanceId, WorkflowDefinitionId Elsa span attributes when present.
LastReceivedAt Backend receive timestamp.

Telemetry Span

Field Notes
TraceId, SpanId, ParentSpanId Trace hierarchy.
ResourceKey Emitting resource.
Name, Kind OTEL span metadata.
StartTime, EndTime, Duration Timing.
StatusCode, StatusDescription OTEL status.
Attributes Redacted span attributes.
Events Redacted events.
Links Span links.
Workflow*, Activity*, TenantId, CorrelationId Existing Elsa.Workflows semantic attributes when present: workflow.*, workflow.activity.*, and elsa.tenant.id.
ReceivedAt Backend receive timestamp.

Metric Instrument and Point

Field Notes
Name, Description, Unit, Type Instrument metadata.
ResourceKey Emitting resource.
Series Bounded collection by attribute set.
Timestamp, StartTimestamp Point timestamps.
Attributes Redacted point attributes.
Value Sum/gauge value.
Count, Sum, Min, Max, Buckets Histogram fields when present.
Temporality Cumulative or delta.
DroppedPointCount Capacity drop count.

OTLP Log Record

Field Notes
Id Backend assigned ID.
Timestamp, ObservedTimestamp, ReceivedAt OTLP and backend timing.
ResourceKey Emitting resource.
SeverityText, SeverityNumber OTEL severity.
Body Redacted body.
TraceId, SpanId Correlation fields.
Attributes Redacted log attributes.

Collector Configuration

Field Notes
HttpEndpoint Base endpoint suitable for OTEL_EXPORTER_OTLP_ENDPOINT with HTTP/protobuf.
GrpcEndpoint Endpoint suitable for gRPC when enabled; null when unavailable.
GrpcEnabled Whether gRPC ingestion is enabled.
GrpcDisabledReason Optional non-secret explanation when disabled.
RequiredHeaders Required ingestion header names without secret values.
RecommendedEnvironment Copyable non-secret OTEL environment variable values.
IsLoopbackOnly Whether ingestion is restricted to loopback.
RequiresApiKey Whether configured ingestion protection is required for advertised endpoints.

Storage Diagnostics

Field Notes
DroppedSpanCount Spans dropped by store capacity.
DroppedMetricPointCount Metric points dropped by capacity.
DroppedLogRecordCount OTLP logs dropped by capacity.
DroppedLiveUpdateCount Live updates dropped by subscriber capacity.
ResourceCount, TraceCount, MetricSeriesCount Current counts.

Storage Capacity Policy

Field Notes
MaxResources Default at least 500.
MaxTraces Default at least 2,000.
MaxSpans Default at least 10,000.
MaxMetricPoints Default at least 20,000 across all metric series.
MaxLogRecords Default at least 10,000.
MaxLiveUpdatesPerSubscriber Default at least 1,000 queued updates per SignalR subscriber.
OverflowPolicy Drop oldest item in the signal-specific buffer and increment the matching dropped counter.