You can now open a real shell on any connected node from the dashboard — the
daemon spawns a host PTY and streams it over the existing outbound control
channel (no inbound port, no Tailscale brokering needed).
Daemon:
- portable-pty host shell sessions: pty_open/pty_in/pty_resize/pty_close ops; a
reader thread streams base64 pty_out frames. Outbound frames now funnel through
one mpsc channel so PTY output and heartbeats interleave.
cm-api NodeHub:
- per-connection pty_sinks + sid multiplexing; open_terminal/terminal_input/
terminal_resize/terminal_close; in-memory single-use terminal tickets (the
browser WS can't carry a bearer, and the session is instance-local anyway).
- routes/nodes.rs: POST /api/nodes/{id}/terminal/ticket + GET .../terminal/ws
(bridges browser xterm <-> node PTY: binary = keystrokes, text = resize).
Frontend:
- NodeTerminal xterm modal (reuses the agent Terminal's xterm setup); a Terminal
button on each online node card opens a shell.
This proves the bidirectional streaming-over-channel mechanism the RemoteDriver
will reuse. Remaining P2: RemoteDriver + placement (run agent workloads on nodes).
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
Security hardening:
- The gateway no longer sends arbitrary shell to nodes. The WSS exec op is
replaced by a typed `verify` op the daemon runs itself (fixed host+docker
check); future container ops are typed too. cm-api NodeHub.verify() + the
daemon's handle_command only dispatches vetted ops.
BYO Tailscale:
- migrations/0019_workspace_tailscale.sql + cm-db fleet_tailscale repo (store the
user's Tailscale API key + tailnet, server-side only).
- cm-api routes/tailscale.rs: POST/GET/DELETE /api/fleet/tailscale + GET
/api/fleet/tailscale/devices (proxies api.tailscale.com device list).
- Daemon: --tailscale-authkey → `tailscale up --authkey … --ssh` (enables
Tailscale SSH for keyless user access); else `tailscale set --ssh=true`. Reports
its tailscale IP (already).
UI:
- Fleet overview gains a Tailscale section: connect (key+tailnet) + live tailnet
device status (online/last-seen/IP/os). Node cards show a copyable Tailscale SSH
target (ssh <ip>).
Remaining: P2 — RemoteDriver + placement (run agents on nodes) and the in-UI
remote terminal (PTY proxied over the WSS channel).
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>