didericis-claude
8a1b833aaa
The shared gateway self-generates a mitmproxy CA that every bottle installs to trust its TLS interception. It was persisted on a Docker named volume, which survives `docker rm` but is silently wiped by `docker volume prune` / `docker system prune --volumes` during routine host maintenance. When that happens the gateway mints a fresh CA on restart, and every already-running bottle fails the TLS handshake even after it re-resolves and reconnects to the moved gateway — a re-attachment blocker distinct from #443/#445. Move CA persistence to a host bind-mount under the app-data root (`bot_bottle_root()/gateway-ca`, via `host_gateway_ca_dir()`), mirroring how the shared DB and control-plane token already live on the host. Docker never prunes a path under the root, and it stays inspectable + rotatable from the host. mitmproxy already adopts an existing CA and generates one only on first run, so the bind-mount gives adopt-existing/generate-on-first-run for free. Add an explicit rollover path: `rotate_gateway_ca()` clears the persisted CA so the next start remints it, and `python -m bot_bottle.orchestrator.rotate_ca` wires that together with dropping the running gateway container (whose mitmproxy still holds the old CA in memory). Rotation stays an operator action — it doesn't auto-re-provision running bottles, which re-attach to pick up the new anchor. Scope: the Docker infra/gateway path (the "infra container" in the report). The macOS (`container`-only volume) and Firecracker (VM-attached ext4) backends persist the CA differently and are unaffected. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
63 lines
2.3 KiB
Python
63 lines
2.3 KiB
Python
"""Rotate the shared gateway's mitmproxy CA (issue #450).
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python -m bot_bottle.orchestrator.rotate_ca
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A deliberate CA rollover has two halves: drop the *persisted* CA so a fresh one
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is minted, and drop the *running* gateway so its mitmproxy (which holds the old
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CA in memory) is replaced. This one-shot command does both:
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1. Delete the persisted CA under the host gateway-CA dir — the next gateway
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start generates a new one (mitmproxy reuses an existing CA, generates only
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when absent).
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2. Force-remove the infra / standalone-gateway containers so the stale
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in-memory CA is gone; the next bottle launch's idempotent `ensure_running`
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brings the gateway back up and mints the fresh CA.
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It does NOT re-provision the new CA into already-running bottles — those must be
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re-attached so they install the new trust anchor. Rotation is thus an explicit,
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operator-driven action with a brief egress interruption, not an automatic one.
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"""
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from __future__ import annotations
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import sys
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from pathlib import Path
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from ..docker_cmd import run_docker
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from ..paths import host_gateway_ca_dir
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from .gateway import GATEWAY_NAME, rotate_gateway_ca
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from .lifecycle import INFRA_NAME
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# The containers whose mitmproxy would still be serving the old CA from memory:
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# the consolidated infra container and the standalone per-host gateway.
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_GATEWAY_CONTAINERS = (INFRA_NAME, GATEWAY_NAME)
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def _out(msg: str) -> None:
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sys.stdout.write(f"rotate-ca: {msg}\n")
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def main(argv: list[str] | None = None) -> int:
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del argv # no flags — a single deliberate action
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ca_dir: Path = host_gateway_ca_dir()
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removed = rotate_gateway_ca(ca_dir)
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if removed:
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_out(f"removed {len(removed)} CA file(s) from {ca_dir}")
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else:
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_out(f"no persisted CA under {ca_dir}; a fresh one is minted on next start")
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# Drop any running gateway so its in-memory (now-stale) CA is replaced on
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# the next launch. `rm --force` on an absent name is a tolerated no-op.
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for name in _GATEWAY_CONTAINERS:
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proc = run_docker(["docker", "rm", "--force", name])
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if proc.returncode == 0 and proc.stdout.strip():
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_out(f"removed running container {name}")
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_out("done — the next bottle launch remints the CA; re-attach bottles to "
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"install the new trust anchor")
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return 0
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if __name__ == "__main__":
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raise SystemExit(main())
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