# Story 3.4b: Enterprise Platform Integrations (SIEM, Splunk, ELK)

## Status: Planned

## Priority: High

## Estimated Effort: Large (1 week+)

## Dependencies: None

## Epic / Series

Part of Epic 3: Plugin Ecosystem Foundation / Series 3.x

---

## Context / Background

Enterprise users need integrations for SIEM, Splunk, and ELK to route logs to enterprise platforms. These should be provided as reference plugin examples/adapters rather than built into core.

---

## User Story

**As an** enterprise user  
**I want** integrations for SIEM, Splunk, and ELK  
**So that** I can route logs to enterprise platforms

---

## Scope (In / Out)

### In Scope

- Reference plugin examples/adapters (skeletons) for SIEM, Splunk, ELK
- Clear configuration and deployment guides
- Performance and reliability guidance (retry/backoff, batching)
- Compatibility matrix with core versions

### Out of Scope

- Full production implementations (users can extend)
- Real-time streaming (basic batching is sufficient)
- Advanced features (covered in user implementations)

---

## Acceptance Criteria

### AC1: Plugin Examples

- [ ] Provide example plugins or adapters (skeletons) for:
  - [ ] SIEM integration
  - [ ] Splunk integration
  - [ ] ELK (Elasticsearch) integration
- [ ] Examples follow sink plugin patterns
- [ ] Examples include error isolation and backpressure

### AC2: Configuration Guides

- [ ] Clear configuration schemas for each integration
- [ ] Deployment guides for each platform
- [ ] Connection setup documentation
- [ ] Authentication/authorization examples

### AC3: Performance Guidance

- [ ] Document performance tuning
- [ ] Document retry/backoff patterns
- [ ] Document batching strategies
- [ ] Provide performance benchmarks/examples

### AC4: Compatibility

- [ ] Compatibility matrix with core versions
- [ ] Version validation
- [ ] Migration guides for version changes

---

## Technical Design / Implementation Notes

### Plugin Structure

Each integration follows sink plugin pattern:

```python
class SplunkSink:
    """Splunk integration sink plugin."""
    
    name = "splunk"
    
    def __init__(self, config: dict):
        self.host = config["host"]
        self.token = config["token"]
        # ...
    
    async def write(self, entry: dict) -> None:
        """Write log entry to Splunk."""
        # Implementation
    
    async def write_serialized(self, view: SerializedView) -> None:
        """Fast path for pre-serialized entries."""
        # Implementation
```

### Example Locations

- `examples/sinks/splunk_sink.py`
- `examples/sinks/elk_sink.py`
- `examples/sinks/siem_sink.py`

---

## Tasks

### Phase 1: Plugin Skeletons
- [ ] Create SIEM sink skeleton
- [ ] Create Splunk sink skeleton
- [ ] Create ELK sink skeleton
- [ ] Follow plugin patterns

### Phase 2: Configuration
- [ ] Define configuration schemas
- [ ] Document configuration options
- [ ] Add validation

### Phase 3: Documentation
- [ ] Configuration guides
- [ ] Deployment guides
- [ ] Performance tuning guides
- [ ] Compatibility documentation

### Phase 4: Examples
- [ ] Working examples for each platform
- [ ] Performance benchmarks
- [ ] Best practices guide

---

## Tests

### Unit Tests

- [ ] Plugin skeleton tests
- [ ] Configuration validation tests
- [ ] Error handling tests

### Integration Tests

- [ ] Test with mock platforms
- [ ] Test batching behavior
- [ ] Test retry/backoff

---

## Documentation Updates

- [ ] Integration guides for each platform
- [ ] Configuration documentation
- [ ] Deployment guides
- [ ] Performance tuning guides
- [ ] Compatibility matrix

---

## Definition of Done

Story is complete when ALL of the following are true:

### Code Complete
- [ ] All acceptance criteria met and verified
- [ ] All tasks completed
- [ ] Code follows project style guide
- [ ] No linting errors or warnings
- [ ] Type checking passes (mypy strict)

### Quality Assurance
- [ ] Unit tests: >90% coverage of new code
- [ ] Integration tests: all scenarios passing
- [ ] Regression tests: no existing functionality broken
- [ ] Performance tests: no regression vs baseline
- [ ] Manual testing completed (if applicable)

### Documentation
- [ ] User-facing docs updated
- [ ] API reference updated (if applicable)
- [ ] Code examples added/updated
- [ ] CHANGELOG.md updated
- [ ] Inline code documentation complete

### Review & Release
- [ ] Code review approved
- [ ] Documentation reviewed for clarity
- [ ] CI/CD pipeline passing
- [ ] Ready for merge to main branch

### Backwards Compatibility
- [ ] No breaking changes OR breaking changes documented with migration guide
- [ ] Existing tests still pass
- [ ] Deprecation warnings added (if applicable)

---

## Risks / Rollback / Monitoring

### Risks

- **Risk:** Platform APIs change
  - **Mitigation:** Document version requirements, provide migration notes

- **Risk:** Examples become outdated
  - **Mitigation:** Keep examples simple, document as reference only

---

## Related Documents

- [Epic 3: Plugin Ecosystem Foundation](../prd/epic-3-plugin-ecosystem-foundation.md)
- [Sink Plugin Documentation](../plugins/sinks.md)

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## Change Log

| Date       | Change                    | Author |
| ---------- | ------------------------- | ------ |
| 2025-01-10 | Initial story creation    | System |
