The agent's HTTP_PROXY points at pipelock, so a request to
http://cred-proxy:9099/... arrives at pipelock; pipelock resolves
the host, sees an RFC1918 address (the bottle's internal Docker
network sits in 172.x), and 403's "SSRF blocked: cred-proxy
resolves to internal IP 172.20.0.4". Bypassing pipelock entirely
would also remove its body scanner from the agent->cred-proxy leg
— we want to keep that DLP coverage.
Pipelock has `ssrf.ip_allowlist` for exactly this: CIDRs that
override the built-in internal-IP block while api_allowlist + body
scanning + tls_interception keep firing.
Wiring:
- `pipelock_build_config` accepts `ssrf_ip_allowlist`; when
non-empty, emits an `ssrf: { ip_allowlist: [...] }` block.
- `pipelock_render_yaml` renders that block.
- `PipelockProxyPlan` gains `internal_network_cidr`.
- New `network_inspect_cidr(name)` helper reads the Docker-assigned
subnet via `docker network inspect`.
- launch.py: after `network_create_internal`, inspect the CIDR,
re-render the yaml with `ssrf_ip_allowlist=(cidr,)`, overwrite
the file in place; `DockerPipelockProxy.start` then docker-cp's
the updated content. Prepare's initial render stays unchanged
(CIDR isn't known yet at prepare time).
The exception scope is the bottle's own internal network only —
agent ↔ pipelock / git-gate / cred-proxy. Body scanning still
applies to the bytes flowing through pipelock; pipelock just no
longer treats those internal IPs as exfil targets.
Silences pylint W1510 / ruff PLW1510 across the codebase. The choice
at each site reflects existing intent:
- check=True where the caller implicitly trusts success (docker ps /
network ls returning stdout, docker build, exec chown/chmod inside
provisioners).
- check=False where the caller inspects .returncode (race-retry on
docker run, pipelock sidecar lifecycle, network plumbing, exec_claude
propagating the session's exit code, best-effort cleanup paths).
No behavior change; check= defaults to False so the False sites are
semantically identical.
Across the package:
- claude_bottle/platform/ -> claude_bottle/backend/
- platform/docker/platform.py -> backend/docker/backend.py
- class BottlePlatform -> BottleBackend
- class DockerBottlePlatform -> DockerBottleBackend
- get_bottle_platform() -> get_bottle_backend()
- env var CLAUDE_BOTTLE_PLATFORM -> CLAUDE_BOTTLE_BACKEND
- dict _PLATFORMS -> _BACKENDS
"Backend" is shorter and more established as the term for a
pluggable strategy-pattern implementation. "Platform" was vague
(could mean OS, hardware, cloud) and mildly redundant — Docker is
itself a platform.
The previous PRD section claiming "the Backend protocol was
rejected" referred to a low-level run/exec/cp/network_connect
protocol; the name was never the reason. The PRD is updated to
describe that rejected design by shape rather than by name.
The bottle/agent concepts and the manifest schema are unchanged.
didericis