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bot-bottle/bot_bottle/orchestrator/control_plane.py
T
didericis 9085d6f713 feat(supervise): orchestrator-side operator-approval API (Step 2a)
The orchestrator owns the single DB *and* the live policy, so operator
decisions belong there — applied server-side, reached over HTTP. Adds:

  GET  /supervise/proposals   -> pending proposals across bottles
  POST /supervise/respond     -> apply + record an operator decision

`supervise_respond` is one atomic server-side op on the one DB: approve/
modify on an egress tool rewrites the bottle's policy (so the gateway
serves the new routes on its next /resolve — the live "apply" that was a
documented TODO), then writes the queued Response (unblocking the agent's
MCP call) and an audit entry. reject records the response + audit only.
Fails closed (409) when the proposal is unknown or the bottle was torn
down before the operator acted (an egress apply would have no target).

This is the server half of unifying every backend onto one HTTP path for
supervise; the host TUI (direct-DB today) moves onto this client next.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WBMWTEtQdJ4W5UrWuLHCck
2026-07-16 18:51:55 -04:00

258 lines
11 KiB
Python

"""Orchestrator HTTP control plane (PRD 0070).
The backend-agnostic control-plane RPC (CLI / console -> orchestrator) over
**HTTP** — the universal transport chosen in 0070 (works on every host; no
vsock / unix-socket portability caveats):
GET /health -> 200 {"status": "ok"}
GET /gateway -> 200 {"configured", ["name","running"]}
GET /bottles -> 200 {"bottles": [ <redacted record>, ...]}
POST /bottles -> 201 {"bottle_id","identity_token"} (launch)
body: {"source_ip", ["image_ref"],
["metadata"], ["policy"]}
PUT /bottles/<bottle_id>/policy -> 200 {"updated": true} | 404 (live reload)
body: {"policy"}
DELETE /bottles/<bottle_id> -> 200 {"torn_down": true} | 404 (teardown)
POST /attribute -> 200 {"bottle_id"} | 403
POST /resolve -> 200 {"bottle_id","policy"} | 403
body: {"source_ip","identity_token"}
GET /supervise/proposals -> 200 {"proposals": [ <proposal>, ...]}
POST /supervise/respond -> 200 {"responded": true} | 409 (operator)
body: {"proposal_id","bottle_slug",
"decision", ["notes"],["final_file"]}
`POST /bottles` / `DELETE` drive the full launch lifecycle: they mint (or
tear down) the bottle in the registry AND broker the backend-native launch
via the orchestrator. Register/deregister without a launch are internal to
`Orchestrator`, not exposed here.
Routing/handling is the pure function `dispatch()` so it is unit-testable
without a socket; `Handler` / `ControlPlaneServer` / `make_server` are a
thin stdlib adapter around it. Listing redacts identity tokens — they are
returned only once, to the caller that launches the bottle.
"""
from __future__ import annotations
import http.server
import json
import os
import socketserver
import sys
import typing
from urllib.parse import urlsplit
from .service import Orchestrator
# JSON body payload type (parsed request / rendered response).
Json = dict[str, object]
def _parse_json_object(body: bytes) -> Json:
"""Parse a JSON object body. Raises ValueError for non-objects / bad JSON."""
if not body:
return {}
obj = json.loads(body) # raises json.JSONDecodeError (a ValueError)
if not isinstance(obj, dict):
raise ValueError("request body must be a JSON object")
return obj
def dispatch( # pylint: disable=too-many-return-statements,too-many-branches
orch: Orchestrator, method: str, path: str, body: bytes
) -> tuple[int, Json]:
"""Route one control-plane request to a (status, payload) pair. Pure —
no I/O beyond the orchestrator — so it is fully testable without a socket."""
route = urlsplit(path).path.rstrip("/") or "/"
if method == "GET" and route == "/health":
return 200, {"status": "ok"}
if method == "GET" and route == "/gateway":
return 200, orch.gateway_status()
if method == "GET" and route == "/bottles":
return 200, {"bottles": [r.redacted() for r in orch.registry.all()]}
if method == "POST" and route == "/bottles":
try:
data = _parse_json_object(body)
except ValueError as e:
return 400, {"error": f"invalid JSON: {e}"}
source_ip = data.get("source_ip")
if not isinstance(source_ip, str) or not source_ip:
return 400, {"error": "source_ip (string) is required"}
image_ref = data.get("image_ref")
metadata = data.get("metadata")
policy = data.get("policy")
raw_tokens = data.get("tokens")
tokens = {
k: v for k, v in raw_tokens.items() if isinstance(k, str) and isinstance(v, str)
} if isinstance(raw_tokens, dict) else {}
rec = orch.launch_bottle(
source_ip,
image_ref=image_ref if isinstance(image_ref, str) else "",
metadata=metadata if isinstance(metadata, str) else "",
policy=policy if isinstance(policy, str) else "",
tokens=tokens,
)
return 201, {"bottle_id": rec.bottle_id, "identity_token": rec.identity_token}
if method == "PUT" and route.startswith("/bottles/") and route.endswith("/policy"):
bottle_id = route[len("/bottles/"):-len("/policy")]
try:
data = _parse_json_object(body)
except ValueError as e:
return 400, {"error": f"invalid JSON: {e}"}
policy = data.get("policy")
if not isinstance(policy, str):
return 400, {"error": "policy (string) is required"}
if orch.set_policy(bottle_id, policy):
return 200, {"updated": True}
return 404, {"error": "no such bottle"}
if method == "DELETE" and route.startswith("/bottles/"):
bottle_id = route[len("/bottles/"):]
if orch.teardown_bottle(bottle_id):
return 200, {"torn_down": True}
return 404, {"error": "no such bottle"}
if method == "POST" and route == "/attribute":
try:
data = _parse_json_object(body)
except ValueError as e:
return 400, {"error": f"invalid JSON: {e}"}
source_ip = data.get("source_ip")
token = data.get("identity_token")
if not isinstance(source_ip, str) or not isinstance(token, str):
return 400, {"error": "source_ip and identity_token (strings) required"}
rec = orch.attribute(source_ip, token)
if rec is None:
return 403, {"error": "unattributed"}
return 200, {"bottle_id": rec.bottle_id}
if method == "GET" and route == "/supervise/proposals":
# Operator TUI: pending supervise proposals across all bottles.
return 200, {"proposals": orch.supervise_pending()}
if method == "POST" and route == "/supervise/respond":
# Operator decision: apply (approve/modify rewrites egress policy),
# write the queued response, audit — all server-side on the one DB.
try:
data = _parse_json_object(body)
except ValueError as e:
return 400, {"error": f"invalid JSON: {e}"}
proposal_id = data.get("proposal_id")
bottle_slug = data.get("bottle_slug")
decision = data.get("decision")
if not (isinstance(proposal_id, str) and proposal_id):
return 400, {"error": "proposal_id (string) is required"}
if not (isinstance(bottle_slug, str) and bottle_slug):
return 400, {"error": "bottle_slug (string) is required"}
if not (isinstance(decision, str) and decision):
return 400, {"error": "decision (string) is required"}
notes = data.get("notes")
final_file = data.get("final_file")
ok, err = orch.supervise_respond(
proposal_id,
bottle_slug=bottle_slug,
decision=decision,
notes=notes if isinstance(notes, str) else "",
final_file=final_file if isinstance(final_file, str) else None,
)
if ok:
return 200, {"responded": True}
return 409, {"error": err}
if method == "POST" and route == "/resolve":
# The per-request lookup the multi-tenant gateway makes: returns the
# bottle's policy. Requires a matching (source_ip, identity_token)
# pair — a missing/empty/mismatched token fail-closes (403), no
# source-IP-only fallback.
try:
data = _parse_json_object(body)
except ValueError as e:
return 400, {"error": f"invalid JSON: {e}"}
source_ip = data.get("source_ip")
token = data.get("identity_token")
if not isinstance(source_ip, str) or not source_ip:
return 400, {"error": "source_ip (string) is required"}
rec = orch.resolve(source_ip, token if isinstance(token, str) else "")
if rec is None:
return 403, {"error": "unattributed"}
# tokens are the in-memory per-bottle egress auth values the gateway
# injects; served here, never persisted.
return 200, {
"bottle_id": rec.bottle_id,
"policy": rec.policy,
"tokens": orch.tokens_for(rec.bottle_id),
}
return 404, {"error": "not found"}
class Handler(http.server.BaseHTTPRequestHandler):
"""Thin stdlib adapter: read the body, call `dispatch`, write JSON."""
# Quiet by default (the orchestrator has its own logging); opt back into
# stdlib access logging with BOT_BOTTLE_ORCHESTRATOR_DEBUG.
def log_message(self, format: str, *args: typing.Any) -> None: # noqa: A002
if os.environ.get("BOT_BOTTLE_ORCHESTRATOR_DEBUG"):
super().log_message(format, *args)
def _serve(self, method: str) -> None:
"""Read the request body, dispatch it, and write the JSON reply. A
dispatch failure (e.g. a broker error) returns a 500 rather than
crashing the connection, so one bad request can't take the control
plane down for the caller."""
server = self.server
assert isinstance(server, ControlPlaneServer)
length = int(self.headers.get("Content-Length") or 0)
body = self.rfile.read(length) if length > 0 else b""
try:
status, payload = dispatch(server.orchestrator, method, self.path, body)
except Exception as e: # noqa: BLE001 — the control plane must stay up
sys.stderr.write(f"orchestrator: {method} {self.path} failed: {e!r}\n")
sys.stderr.flush()
status, payload = 500, {"error": f"internal error: {e}"}
data = json.dumps(payload).encode()
self.send_response(status)
self.send_header("Content-Type", "application/json")
self.send_header("Content-Length", str(len(data)))
self.end_headers()
self.wfile.write(data)
def do_GET(self) -> None:
self._serve("GET")
def do_POST(self) -> None:
self._serve("POST")
def do_PUT(self) -> None:
self._serve("PUT")
def do_DELETE(self) -> None:
self._serve("DELETE")
class ControlPlaneServer(socketserver.ThreadingMixIn, http.server.HTTPServer):
"""Threading HTTP server that carries the orchestrator for its handlers."""
daemon_threads = True
allow_reuse_address = True
def __init__(self, address: tuple[str, int], orchestrator: Orchestrator) -> None:
self.orchestrator = orchestrator
super().__init__(address, Handler)
def make_server(
orchestrator: Orchestrator, host: str = "127.0.0.1", port: int = 0
) -> ControlPlaneServer:
"""Build (but do not start) a control-plane server. `port=0` binds an
ephemeral port — read `server.server_address` for the actual one."""
return ControlPlaneServer((host, port), orchestrator)
__all__ = ["dispatch", "Handler", "ControlPlaneServer", "make_server", "Json"]