This commit implements a comprehensive refactoring of the update system to address race conditions, redundant polling, and rate limiting issues. Backend changes: - Add job queue system to ensure only ONE update runs at a time - Implement Server-Sent Events (SSE) for real-time update progress - Add rate limiting to /api/updates/status (5-second minimum per client) - Create SSE broadcaster for push-based status updates - Integrate job queue with update manager for atomic operations - Add comprehensive unit tests for queue and SSE components Frontend changes: - Update UpdateProgressModal to use SSE as primary mechanism - Implement automatic fallback to polling when SSE unavailable - Maintain backward compatibility with existing update flow - Clean up SSE connections on component unmount API changes: - Add new endpoint: GET /api/updates/stream (SSE) - Enhance /api/updates/status with client-based rate limiting - Return cached status with appropriate headers when rate limited Benefits: - Eliminates 429 rate limit errors during updates - Only one update job can run at a time (prevents race conditions) - Real-time updates via SSE reduce unnecessary polling - Graceful degradation to polling when SSE unavailable - Better resource utilization and reduced server load Testing: - All existing tests pass - New unit tests for queue and SSE functionality - Integration tests verify complete update flow |
||
|---|---|---|
| .. | ||
| alerts.go | ||
| alerts_test.go | ||
| auth.go | ||
| auth_scope_test.go | ||
| bootstrap_token.go | ||
| config_handlers.go | ||
| config_handlers_auto_register_test.go | ||
| config_handlers_cluster_test.go | ||
| config_handlers_setup_script_test.go | ||
| csrf_store.go | ||
| demo_middleware.go | ||
| diagnostics.go | ||
| DO_NOT_EDIT_FRONTEND_HERE.md | ||
| docker_agents.go | ||
| docker_metadata.go | ||
| frontend_embed.go | ||
| guest_metadata.go | ||
| host_agents.go | ||
| host_agents_test.go | ||
| http_metrics.go | ||
| middleware.go | ||
| notification_queue.go | ||
| notifications.go | ||
| oidc_handlers.go | ||
| oidc_service.go | ||
| rate_limit_config.go | ||
| rate_limit_config_test.go | ||
| ratelimit.go | ||
| README.md | ||
| recovery_tokens.go | ||
| router.go | ||
| router_integration_test.go | ||
| security.go | ||
| security_oidc.go | ||
| security_setup_fix.go | ||
| security_setup_fix_test.go | ||
| security_test.go | ||
| security_tokens.go | ||
| security_tokens_test.go | ||
| session_store.go | ||
| system_settings.go | ||
| types.go | ||
| updates.go | ||
Internal API Package
This directory contains the API server implementation for Pulse.
Important Note About frontend-modern/
The frontend-modern/ subdirectory that appears here is:
- AUTO-GENERATED during builds
- NOT the source code - just a build artifact
- IN .gitignore - never committed
- REQUIRED BY GO - The embed directive needs it here
Frontend Development Location
👉 Edit frontend files at: /opt/pulse/frontend-modern/src/
Why This Structure?
Go's //go:embed directive has limitations:
- Cannot use
../paths to access parent directories - Cannot follow symbolic links
- Must embed files within the Go module
This is a known Go limitation and our structure works around it.