Full Go implementation under go/ replacing Python pyte with go-te:
- HTTP server with WebSocket protocol, SSE, screenshot SVG rendering
- PTY terminal sessions and Docker exec sessions
- Docker watcher (label-based container discovery + event stream)
- CPU stats collection with sparkline SVG rendering
- Session manager with TwoWayMap routing and replay buffers
- C1 normalization, DA filtering, identity generation, theme palettes
Audit fixes for 9 concurrency/correctness issues:
- HTTP transport leak: shared client pool for Docker socket calls
- WebSocket concurrent writes: all writes routed through send channel
- Closed channel panic: atomic.Bool guard on enqueueWSData
- GetFirstRunningSession: use UnsafeForward under SessionManager lock
- NewSession TOCTOU: re-check routeKey after re-acquiring lock
- waitErr data race: protect with mutex in both session types
- Replay buffer fragmentation: copy to new slice on eviction
- go-te dirty tracking: check screen.Dirty before incrementing counter
- Identity modulo bias: rejection sampling for uniform distribution
All Go tests pass (including -race). Python baseline unchanged (397 tests).
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
- Add --docker-watch CLI flag to watch for containers with webterm-command label
- Containers with label 'auto' get bash exec, otherwise use label as command
- Dynamic dashboard updates via SSE when containers start/stop
- Add /tiles endpoint for JSON tile list
- Multi-stage Dockerfile for minimal production image
- Update README with docker-watch documentation
The docker watcher monitors Docker events and automatically:
- Adds terminal tiles when labeled containers start
- Removes tiles when containers stop
- Notifies dashboard via SSE for live updates
New features:
- CPU sparklines on dashboard showing 30-minute container history
- Real-time screenshot updates via Server-Sent Events
- Auto-focus terminals on page load
- Tab reuse when clicking dashboard tiles
- pyte-based screenshot rendering with proper ANSI interpretation
- Dirty tracking for efficient screenshot caching
Documentation:
- Updated README with new features and API endpoints
- Added Dashboard Features section
- Documented compose mode CPU sparklines
- Added API endpoints table
Technical improvements:
- Docker stats collection via Unix socket (no new deps)
- SSE endpoint for activity notifications
- Proper pyte-to-Rich color mapping
- Terminal lifecycle race condition fixes
GitHub Copilot