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refactor(gateway): fail closed without an orchestrator URL; drop stale single-tenant comments
Follow-ups from the #402 review of the single-tenant data-plane teardown.

- egress_entrypoint.sh: refuse to launch mitmdump when
  BOT_BOTTLE_ORCHESTRATOR_URL is unset, so the fail-closed guarantee no
  longer rests solely on mitmproxy's errorcheck addon exiting on the
  addon's load-time raise. A misconfigured gateway can never come up as
  a bare TLS-bumping open proxy with no policy.
- orchestrator/gateway.py: ensure_running() raises GatewayError on an
  empty orchestrator URL — a URL-less launch would only crash-loop the
  now-resolver-only daemons (egress raises, git-http exits 1, supervise
  exits 2). The env-injection branch is now unconditional.
- Drop stale "single-tenant" / "reads routes.yaml" comments in
  gateway.py and egress_entrypoint.sh, and the /etc/egress/routes.yaml
  layout line in Dockerfile.gateway.
- Tests: gateway fixtures supply an orchestrator URL; add a
  refuse-without-URL test and assert the URL env is injected.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UoEZHDjv84ChoZbozQERhJ
2026-07-17 21:40:14 -04:00

122 lines
5.9 KiB
Docker

# Gateway data-plane image (PRD 0024 bundle shape; PRD 0070 gateway).
#
# The egress / git-gate / supervise *data plane* — one image, run by
# the consolidated per-host gateway (PRD 0070). It is NOT the
# orchestrator control plane: that is the separate, lean
# `bot-bottle-orchestrator` image (Dockerfile.orchestrator, #384), which
# ships only python + the stdlib-only `bot_bottle` package and none of
# this image's mitmproxy / git / gitleaks payload.
#
# Collapses the prior per-daemon images (egress, git-gate,
# supervise) into one. A small stdlib-Python init supervisor at
# /app/gateway_init.py spawns all daemons, forwards SIGTERM, and
# propagates per-daemon stdout/stderr to the container log with a
# `[name]` prefix. See PRD 0024 for the rationale.
#
# Layout:
#
# /usr/bin/gitleaks gitleaks binary
# /app/egress_addon.py + siblings mitmproxy addon (egress)
# /app/egress-entrypoint.sh mitmdump launcher
# /app/supervise_server.py + .py supervise MCP server
# /app/gateway_init.py PID 1 supervisor
# /etc/git-gate/pre-receive docker-cp'd at start time
# /git-gate-entrypoint.sh docker-cp'd at start time
# /git-gate/creds/* docker-cp'd at start time
# /git/* bare repos, populated at runtime
# /run/supervise/bot-bottle.db bind-mounted at run time
# /home/mitmproxy/.mitmproxy/ mitmproxy CA dir
#
# Exposed ports inside the container:
# 9099 egress (mitmproxy, agent-facing HTTPS proxy)
# 9418 git-gate (git-daemon)
# 9420 git-gate smart HTTP (VM-backend agent-facing transport)
# 9100 supervise (MCP HTTP)
# Based on `python:3.12-slim` (Debian trixie) rather than the
# `mitmproxy/mitmproxy` image (Debian bookworm) so the whole stack —
# gateway here, and the firecracker infra image that builds FROM this —
# lands on trixie, whose buildah (1.39) can build agent Dockerfiles that
# use heredocs. mitmproxy is pip-installed to the same effect as the
# upstream image. (bookworm's buildah is 1.28, which can't parse
# `RUN ... <<EOF`; see the infra image + PR discussion.)
FROM python:3.12-slim
# Runtime system deps:
# git supplies the `git daemon` subcommand (no separate package)
# plus the core `git` binary the pre-receive hook invokes.
# openssh-client supplies the upstream SSH transport the
# pre-receive hook uses to forward accepted refs.
# ca-certificates is needed for mitmdump upstream TLS.
RUN apt-get update \
&& apt-get install -y --no-install-recommends \
git openssh-client ca-certificates \
&& rm -rf /var/lib/apt/lists/*
# mitmdump (the egress data plane). The upstream mitmproxy image baked
# this in; on the plain python base we pip-install the same pinned
# version. Its CA dir is set explicitly via `--set confdir=` in
# egress-entrypoint.sh, so it doesn't depend on a `mitmproxy` home user.
RUN pip install --no-cache-dir mitmproxy==11.1.3
# gitleaks (the pre-receive hook's secret scanner). Installed from its
# official release, pinned by version + SHA256 and verified — rather than
# using a third-party image as a build stage (supply-chain surface, and it
# would pin us to that image's cadence). python (already present) does the
# download so we add no curl/wget. trixie apt also ships gitleaks, but an
# older 8.16; the pinned download keeps the verified 8.30.1.
ARG GITLEAKS_VERSION=8.30.1
ARG GITLEAKS_SHA256=551f6fc83ea457d62a0d98237cbad105af8d557003051f41f3e7ca7b3f2470eb
RUN url="https://github.com/gitleaks/gitleaks/releases/download/v${GITLEAKS_VERSION}/gitleaks_${GITLEAKS_VERSION}_linux_x64.tar.gz" \
&& python3 -c "import sys,urllib.request; urllib.request.urlretrieve(sys.argv[1], '/tmp/gitleaks.tar.gz')" "$url" \
&& echo "${GITLEAKS_SHA256} /tmp/gitleaks.tar.gz" | sha256sum -c - \
&& tar -xzf /tmp/gitleaks.tar.gz -C /usr/bin gitleaks \
&& rm /tmp/gitleaks.tar.gz
# Project Python: addon + server modules + the init supervisor.
# Kept flat under /app/ so mitmdump's loader resolves them as
# top-level siblings (absolute imports), matching the prior
# Dockerfile.egress / Dockerfile.supervise layout.
COPY bot_bottle/egress_addon_core.py /app/egress_addon_core.py
COPY bot_bottle/egress_dlp_config.py /app/egress_dlp_config.py
COPY bot_bottle/egress_addon.py /app/egress_addon.py
COPY bot_bottle/policy_resolver.py /app/policy_resolver.py
COPY bot_bottle/dlp_detectors.py /app/dlp_detectors.py
COPY bot_bottle/yaml_subset.py /app/yaml_subset.py
COPY bot_bottle/paths.py /app/paths.py
COPY bot_bottle/migrations.py /app/migrations.py
COPY bot_bottle/db_store.py /app/db_store.py
COPY bot_bottle/supervise_types.py /app/supervise_types.py
COPY bot_bottle/queue_store.py /app/queue_store.py
COPY bot_bottle/audit_store.py /app/audit_store.py
COPY bot_bottle/store_manager.py /app/store_manager.py
COPY bot_bottle/supervise.py /app/supervise.py
COPY bot_bottle/supervise_server.py /app/supervise_server.py
COPY bot_bottle/gateway_init.py /app/gateway_init.py
COPY bot_bottle/git_http_backend.py /app/git_http_backend.py
COPY bot_bottle/egress_entrypoint.sh /app/egress-entrypoint.sh
RUN chmod +x /app/egress-entrypoint.sh
# Pre-create runtime directories the compose renderer + start
# step expect to exist. `docker cp` does not create intermediate
# dirs, and bind mounts won't either if the parent is missing.
RUN mkdir -p \
/etc/egress \
/etc/git-gate \
/git-gate/creds \
/git \
/run/supervise \
/home/mitmproxy/.mitmproxy
# Documentation only — the compose renderer publishes whichever
# subset the bottle uses.
EXPOSE 8888 9099 9418 9420 9100
# WORKDIR matches Dockerfile.supervise's prior layout so the
# in-app same-dir import in supervise_server.py stays deterministic.
WORKDIR /app
# PID 1 is the supervisor. It owns signal handling and exit-code
# propagation; no `exec` chain in the entrypoint itself.
ENTRYPOINT ["python3", "/app/gateway_init.py"]