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bot-bottle/bot_bottle/backend/docker/consolidated_compose.py
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refactor(egress): make Egress a service class in an egress package
Split the flat egress.py into an egress/ package: neutral DTOs
(EgressRoute, EgressPlan) in plan.py, and the concrete Egress service
class plus rendering/env helpers in service.py, behind a thin
__getattr__ facade so leaf imports stay cheap.

Egress drops ABC and becomes a concrete service the backends call:
resolve_token_values / agent_env_entries / prepare are now methods.
Backend launch paths (docker, firecracker, macos_container) call
Egress().<method>(...) instead of the module-level functions.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-24 16:43:59 -04:00

90 lines
3.7 KiB
Python

"""Agent-only compose for the consolidated docker backend (PRD 0070).
The per-bottle model rendered a compose project with the agent *and* a
gateway on two per-bottle networks. In the consolidated model the
per-bottle companion containers are gone — one shared gateway serves every bottle — so this renders
just the agent, attached to the **external shared gateway network** with the
pinned source IP the orchestrator allocated, and pointed at the gateway's
address for egress (and, around the proxy, for git-http / supervise).
Pure: it takes the launch-time `LaunchContext` values (gateway address,
source IP, network) and the prepared plan, and returns a compose dict — no
docker, so it's testable in isolation.
"""
from __future__ import annotations
from typing import Any
from ...egress import Egress
from ...orchestrator.store.secret_store import ENV_VAR_SECRET_NAME
from ..util import AGENT_CA_BUNDLE, AGENT_CA_PATH
from .bottle_plan import DockerBottlePlan
from .egress import EGRESS_PORT
def consolidated_agent_compose(
plan: DockerBottlePlan,
*,
gateway_ip: str,
source_ip: str,
network: str,
) -> dict[str, Any]:
"""A compose spec with only the agent service, on the external gateway
network at `source_ip`, proxying egress through `gateway_ip`."""
# Deliver the identity token as egress proxy credentials — the gateway
# reads Proxy-Authorization, validates the (source_ip, token) pair, and
# strips it before upstream. git-http/supervise get it via their own
# headers (git config extraHeader / MCP header).
token = getattr(plan, "identity_token", "")
cred = f"bottle:{token}@" if token else ""
proxy_url = f"http://{cred}{gateway_ip}:{EGRESS_PORT}"
# git-http + supervise live on the gateway too and must NOT go through the
# egress proxy — the agent reaches them directly by the gateway address.
no_proxy = f"localhost,127.0.0.1,{gateway_ip}"
env: list[str] = [
f"HTTPS_PROXY={proxy_url}",
f"HTTP_PROXY={proxy_url}",
f"https_proxy={proxy_url}",
f"http_proxy={proxy_url}",
f"NO_PROXY={no_proxy}",
f"no_proxy={no_proxy}",
f"NODE_EXTRA_CA_CERTS={AGENT_CA_PATH}",
f"SSL_CERT_FILE={AGENT_CA_BUNDLE}",
f"REQUESTS_CA_BUNDLE={AGENT_CA_BUNDLE}",
]
for name, value in sorted(plan.agent_provision.guest_env.items()):
env.append(f"{name}={value}")
# Forwarded vars: bare name → inherits from the compose-up process env so
# the secret value never lands on argv or in the compose file.
for name in sorted(plan.forwarded_env.keys()):
env.append(name)
# ENV_VAR_SECRET: bare name so the value comes from the compose subprocess
# env (set in launch.py) and is never written to the compose file on disk.
if getattr(plan, "env_var_secret", ""):
env.append(ENV_VAR_SECRET_NAME)
env.extend(Egress().agent_env_entries(plan.egress_plan))
service: dict[str, Any] = {
"image": plan.image,
"container_name": plan.container_name,
"command": ["sleep", "infinity"],
# Pinned address on the shared gateway network — the orchestrator
# registered this IP, and the gateway attributes the bottle by it.
"networks": {network: {"ipv4_address": source_ip}},
"environment": env,
}
if plan.use_runsc:
service["runtime"] = "runsc"
return {
"name": f"bot-bottle-{plan.slug}",
"services": {"agent": service},
# The gateway network is created + owned by the orchestrator; compose
# attaches to it (external) and must not create or destroy it.
"networks": {network: {"external": True}},
}
__all__ = ["consolidated_agent_compose"]