Expands the Containers feature with two new ways to see and manage Docker
containers without exposing the Docker Engine TCP socket, plus the docs and
roadmap entries that frame them.
Docker over SSH (management):
- Runs the `docker` CLI on a remote SSH host instead of talking to the Engine
TCP API, reusing the existing SSH transport (jump-host chaining, host-key
verification, key/password auth) via connectTarget + execCommand. No dockerd
socket has to be exposed — the mesh + SSH auth are the gate.
- backend/src/ssh/docker.ts: list/logs/start/stop/restart/pause/unpause/remove
and an interactive `docker exec` shell builder. Container refs are validated
against a strict allowlist and single-quoted to prevent command injection;
action verbs are whitelisted.
- backend/src/routes/dockerSsh.ts: REST routes mirroring the TCP Docker API
shape (mutating actions gated by adminOnly) + a /api/docker-ssh/exec
WebSocket modeled on the terminal PTY plumbing.
- Note: the SSH path uses the ssh2 key/password auth; it does not implement the
OpenSSH-certificate (OPKSSH) fallback that the terminal route has.
Docker push-agent monitoring (self-hosted, read-only):
- A small bash agent (agent/archnest-docker-agent.sh) runs on each Docker VM,
collects a rich snapshot (docker ps + inspect + a stats snapshot), masks
secret-looking env values locally, and POSTs it to ArchNest. VMs need
outbound-only mesh access — no exposed port, no SSH for monitoring.
- backend/src/routes/agents.ts: token-gated ingest
(POST /api/agents/docker/report, ARCHNEST_AGENT_TOKEN, constant-time compare;
503 when unset, so it is disabled by default) plus user-auth read endpoints
(hosts list with staleness flag, per-host containers, single-container
detail). New docker_agent_reports table (latest report per host).
- Ingest stores data only; it never executes anything from the agent.
Containers page:
- Host selector now spans Docker API, SSH, and Agent sources.
- Intra-page tabs: a Containers list plus dynamic, closeable per-container
detail tabs opened by clicking a container name. Agent detail shows
overview/state/stats/ports/networks/mounts/env(masked)/labels; docker/ssh
degrade gracefully. Agent rows are read-only; docker/ssh keep management.
Docs/roadmap:
- docs/docker-agent-monitoring.md (design doc, written before implementation).
- ROADMAP.md: LXC management (paid), Docker monitoring agent tiering
(push self-hosted now / pull-agent paid), terminal grid tiering.
Deferred (documented, not built here): the mesh-prerequisite setup gate, the
paid pull-agent (Option 2), per-host tokens, time-series metrics.
Requires ARCHNEST_AGENT_TOKEN in the backend env to enable agent ingest.
Verified: backend `tsc --noEmit` and frontend `tsc -b && vite build` both pass;
agent jq filters, byte conversion, and `bash -n` checked locally.
Co-authored-by: Samuel James <ssamjame@amazon.com>
Co-authored-by: Kiro <noreply@kiro.dev>
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