didericis
4f16b3a9e1
test / run tests/run_tests.py (pull_request) Successful in 15s
The Docker factory had absorbed live container ops but left the
host-side prep (image-name resolution, container-name collision
retry, pipelock yaml generation, env_resolve writes, host
validation) in cli/start.py. That kept ~half the Docker-specific
logic outside the abstraction.
Split the factory into two phases:
prepare_docker_bottle(spec, stage_dir=...) -> DockerBottlePlan
Resolves names, validates skills/SSH, writes scratch files.
No Docker resources created yet.
launch_docker_bottle(plan) -> ContextManager[Bottle]
Builds image, creates networks, boots pipelock, runs the
agent container, provisions files. Teardown on exit.
DockerBottleSpec shrinks to intent-only inputs (manifest, agent
name, --cwd flag, user_cwd, forward_oauth_token). The CLI no longer
references docker_mod, pipelock, skills, ssh, or env_resolve.
get_bottle_factory becomes get_bottle_platform returning a
BottlePlatform with .prepare and .launch — one selectable thing per
platform.
The Bottle handle now remembers the in-container prompt path and
adds --append-system-prompt-file to claude's argv when present, so
the CLI no longer needs to know the path.
cmd_start: ~148 lines down from 229. Tests pass; dry-run output
byte-identical.
411 lines
14 KiB
Python
411 lines
14 KiB
Python
"""Docker bottle factory.
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Two phases:
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prepare_docker_bottle(spec, stage_dir=...) -> DockerBottlePlan
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Resolve names, validate host-side prerequisites, and write
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scratch files (env_file, args_file, prompt, pipelock yaml) to
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stage_dir. No Docker resources are created yet. Suitable to call
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before the y/N preflight.
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launch_docker_bottle(plan) -> ContextManager[Bottle]
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Build the image, create networks, boot the pipelock sidecar,
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launch the agent container (with `--runtime=runsc` iff the
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daemon has gVisor registered), and copy prompt/skills/ssh/.git
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into the running container. Teardown on exit.
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The Bottle Protocol lives in `claude_bottle.bottles.__init__`.
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"""
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from __future__ import annotations
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import os
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import subprocess
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import sys
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from contextlib import contextmanager
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from dataclasses import dataclass
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from pathlib import Path
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from typing import Iterator
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from .. import docker as docker_mod
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from .. import network as network_mod
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from .. import pipelock
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from .. import skills as skills_mod
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from .. import ssh as ssh_mod
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from ..env_resolve import env_resolve
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from ..log import die, info
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from ..manifest import Manifest
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# --- Runtime detection -----------------------------------------------------
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def runsc_available() -> bool:
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"""Return True if the Docker daemon has the gVisor (`runsc`) runtime
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registered. Called once per prepare; the result lives on the plan."""
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r = subprocess.run(
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["docker", "info", "--format", "{{json .Runtimes}}"],
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capture_output=True,
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text=True,
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)
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return r.returncode == 0 and "runsc" in r.stdout
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# --- Spec + Plan -----------------------------------------------------------
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@dataclass(frozen=True)
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class DockerBottleSpec:
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"""CLI-supplied inputs to the Docker factory. Small and intent-only;
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everything else (image names, container name, scratch file paths,
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runsc availability) is resolved by prepare_docker_bottle."""
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manifest: Manifest
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agent_name: str
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copy_cwd: bool
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user_cwd: str
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forward_oauth_token: bool
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@dataclass(frozen=True)
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class DockerBottlePlan:
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"""Output of prepare_docker_bottle. Frozen; the launch step consumes
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it without further resolution. show_plan reads from it directly."""
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spec: DockerBottleSpec
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slug: str
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container_name: str
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container_name_pinned: bool
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image: str
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derived_image: str # "" -> no derived image
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runtime_image: str # image actually launched (derived or base)
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stage_dir: Path
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env_file: Path
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args_file: Path
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prompt_file: Path
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pipelock_yaml_path: Path
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pipelock_yaml_filename: str
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allowlist_summary: str
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use_runsc: bool
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# --- Bottle handle ---------------------------------------------------------
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class _DockerBottle:
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"""Concrete Bottle for Docker. Holds the container name plus the
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in-container prompt path so exec_claude can transparently add
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--append-system-prompt-file when a prompt was provisioned."""
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def __init__(self, container: str, teardown, prompt_path_in_container: str | None):
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self.name = container
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self._teardown = teardown
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self._prompt_path = prompt_path_in_container
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self._closed = False
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def exec_claude(self, argv: list[str], *, tty: bool = True) -> int:
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full_argv = list(argv)
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if self._prompt_path:
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full_argv.extend(["--append-system-prompt-file", self._prompt_path])
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cmd = ["docker", "exec"]
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if tty:
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cmd.append("-it")
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cmd.extend([self.name, "claude", *full_argv])
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return subprocess.run(cmd).returncode
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def cp_in(self, host_path: str, container_path: str) -> None:
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subprocess.run(
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["docker", "cp", host_path, f"{self.name}:{container_path}"],
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stdout=subprocess.DEVNULL,
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check=True,
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)
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def close(self) -> None:
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if self._closed:
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return
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self._closed = True
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self._teardown()
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# --- Prepare ---------------------------------------------------------------
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def prepare_docker_bottle(spec: DockerBottleSpec, *, stage_dir: Path) -> DockerBottlePlan:
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"""Resolve names, validate, write scratch files. No Docker resources
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are created; the only side effects are host-side files under
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stage_dir and a probe of `docker info`."""
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docker_mod.require_docker()
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manifest = spec.manifest
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manifest.require_agent(spec.agent_name)
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agent = manifest.agents[spec.agent_name]
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bottle = manifest.bottle_for(spec.agent_name)
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bottle_name = agent.bottle
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slug = docker_mod.slugify(spec.agent_name)
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image = os.environ.get("CLAUDE_BOTTLE_IMAGE", "claude-bottle:latest")
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derived_image = ""
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runtime_image = image
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if spec.copy_cwd:
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derived_image = os.environ.get(
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"CLAUDE_BOTTLE_DERIVED_IMAGE", f"claude-bottle:cwd-{slug}"
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)
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runtime_image = derived_image
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default_container = f"claude-bottle-{slug}"
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pinned_container = os.environ.get("CLAUDE_BOTTLE_CONTAINER", "")
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container_name = pinned_container or default_container
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container_name_pinned = bool(pinned_container)
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suffix = 2
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if container_name_pinned:
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if docker_mod.container_exists(container_name):
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die(
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f"container '{container_name}' already exists "
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f"(pinned via CLAUDE_BOTTLE_CONTAINER). "
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f"Remove it with 'docker rm -f {container_name}' or unset the override."
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)
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else:
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while docker_mod.container_exists(container_name):
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container_name = f"{default_container}-{suffix}"
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suffix += 1
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if suffix > 100:
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die(
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f"could not find a free container name after "
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f"{default_container}-99; clean up old containers with "
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f"'docker rm -f <name>'"
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)
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if agent.skills:
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skills_mod.skills_validate_all(list(agent.skills))
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if bottle.ssh:
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ssh_mod.ssh_validate_entries(bottle.ssh)
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env_file = stage_dir / "agent.env"
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args_file = stage_dir / "docker-args"
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prompt_file = stage_dir / "prompt.txt"
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pipelock_yaml_filename = "pipelock.yaml"
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pipelock_yaml = stage_dir / pipelock_yaml_filename
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env_file.write_text("")
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env_file.chmod(0o600)
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args_file.write_text("")
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prompt_file.write_text("")
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prompt_file.chmod(0o600)
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pipelock.pipelock_write_yaml(manifest, bottle_name, pipelock_yaml)
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env_resolve(manifest, spec.agent_name, env_file, args_file)
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prompt_file.write_text(agent.prompt)
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allowlist_summary = pipelock.pipelock_allowlist_summary(manifest, bottle_name)
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use_runsc = runsc_available()
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return DockerBottlePlan(
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spec=spec,
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slug=slug,
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container_name=container_name,
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container_name_pinned=container_name_pinned,
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image=image,
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derived_image=derived_image,
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runtime_image=runtime_image,
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stage_dir=stage_dir,
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env_file=env_file,
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args_file=args_file,
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prompt_file=prompt_file,
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pipelock_yaml_path=pipelock_yaml,
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pipelock_yaml_filename=pipelock_yaml_filename,
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allowlist_summary=allowlist_summary,
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use_runsc=use_runsc,
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)
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# --- Launch ----------------------------------------------------------------
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# Where the repo root lives, for `docker build` context. Computed once.
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_REPO_DIR = str(Path(__file__).resolve().parent.parent.parent)
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@contextmanager
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def launch_docker_bottle(plan: DockerBottlePlan) -> Iterator[_DockerBottle]:
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"""Build, launch, and provision a Docker bottle. Teardown on exit."""
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state: dict[str, str] = {
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"container": "",
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"pipelock": "",
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"internal_network": "",
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"egress_network": "",
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}
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def teardown() -> None:
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try:
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if state["container"] and docker_mod.container_exists(state["container"]):
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subprocess.run(
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["docker", "rm", "-f", state["container"]],
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stdout=subprocess.DEVNULL,
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stderr=subprocess.DEVNULL,
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)
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state["container"] = ""
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if state["pipelock"]:
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pipelock.pipelock_stop(plan.slug)
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state["pipelock"] = ""
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if state["internal_network"]:
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network_mod.network_remove(state["internal_network"])
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state["internal_network"] = ""
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if state["egress_network"]:
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network_mod.network_remove(state["egress_network"])
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state["egress_network"] = ""
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except BaseException:
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# Teardown must not raise; swallow so the caller's __exit__
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# path can still propagate the original error.
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pass
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try:
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docker_mod.build_image(plan.image, _REPO_DIR)
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if plan.derived_image:
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docker_mod.build_image_with_cwd(
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plan.derived_image, plan.image, plan.spec.user_cwd
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)
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state["internal_network"] = network_mod.network_create_internal(plan.slug)
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state["egress_network"] = network_mod.network_create_egress(plan.slug)
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state["pipelock"] = pipelock.pipelock_start(
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plan.slug,
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state["internal_network"],
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state["egress_network"],
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plan.stage_dir,
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plan.pipelock_yaml_filename,
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)
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container = _run_agent_container(plan, state["internal_network"])
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state["container"] = container
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prompt_path = _provision_container(plan, container)
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bottle = _DockerBottle(container, teardown, prompt_path)
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yield bottle
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finally:
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teardown()
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# --- Internals -------------------------------------------------------------
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def _run_agent_container(plan: DockerBottlePlan, internal_network: str) -> str:
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"""Build the `docker run` argv and execute it, handling name-conflict
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races by incrementing the suffix (unless the name was user-pinned).
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Returns the resolved container name."""
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proxy_url = pipelock.pipelock_proxy_url(plan.slug)
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docker_args: list[str] = [
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"--rm", "-d",
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"--name", plan.container_name,
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"--network", internal_network,
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"-e", f"HTTPS_PROXY={proxy_url}",
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"-e", f"HTTP_PROXY={proxy_url}",
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"-e", "NO_PROXY=localhost,127.0.0.1",
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]
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if plan.use_runsc:
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docker_args.extend(["--runtime", "runsc"])
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if plan.env_file.stat().st_size > 0:
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docker_args.extend(["--env-file", str(plan.env_file)])
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# ARGS_FILE pairs (-e, NAME) line-by-line.
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args_lines = plan.args_file.read_text().splitlines()
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i = 0
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while i < len(args_lines):
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flag = args_lines[i]
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i += 1
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if not flag:
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continue
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if i >= len(args_lines):
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break
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vname = args_lines[i]
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i += 1
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docker_args.extend([flag, vname])
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if plan.spec.forward_oauth_token:
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os.environ["CLAUDE_CODE_OAUTH_TOKEN"] = os.environ["CLAUDE_BOTTLE_OAUTH_TOKEN"]
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docker_args.extend(["-e", "CLAUDE_CODE_OAUTH_TOKEN"])
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docker_args.extend([plan.runtime_image, "sleep", "infinity"])
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info(f"starting container {plan.container_name} from {plan.runtime_image}")
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container = plan.container_name
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base_name = plan.container_name
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suffix = 2
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while True:
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run_result = subprocess.run(
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["docker", "run", *docker_args],
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capture_output=True,
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text=True,
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)
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if run_result.returncode == 0:
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return container
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err_text = run_result.stderr
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if plan.container_name_pinned or "is already in use" not in err_text:
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sys.stderr.write(err_text + "\n")
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die(f"docker run failed for container '{container}'")
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if suffix > 100:
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die(
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f"could not find a free container name after "
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f"{base_name}-99 retries; clean up old containers"
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)
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container = f"{base_name}-{suffix}"
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suffix += 1
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name_idx = docker_args.index("--name") + 1
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docker_args[name_idx] = container
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info(f"name conflict; retrying as {container}")
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def _provision_container(plan: DockerBottlePlan, container: str) -> str | None:
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"""Copy prompt, skills, ssh keys, and (optionally) .git into the
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running container. Returns the in-container prompt path if a prompt
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was provisioned, else None — the Bottle handle uses it to decide
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whether to add --append-system-prompt-file to claude's argv."""
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container_home = os.environ.get("CLAUDE_BOTTLE_CONTAINER_HOME", "/home/node")
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in_container_prompt_path = f"{container_home}/.claude-bottle-prompt.txt"
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subprocess.run(
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["docker", "cp", str(plan.prompt_file), f"{container}:{in_container_prompt_path}"],
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stdout=subprocess.DEVNULL,
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check=True,
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)
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# `docker cp` preserves host UID; re-own/mode as root so node can
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# read its own mode-600 prompt regardless of host UID.
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subprocess.run(
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["docker", "exec", "-u", "0", container, "chown", "node:node", in_container_prompt_path],
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stdout=subprocess.DEVNULL,
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check=True,
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)
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subprocess.run(
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["docker", "exec", "-u", "0", container, "chmod", "600", in_container_prompt_path],
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stdout=subprocess.DEVNULL,
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check=True,
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)
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agent = plan.spec.manifest.agents[plan.spec.agent_name]
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if agent.skills:
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skills_mod.skills_copy_into(container, list(agent.skills))
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bottle = plan.spec.manifest.bottle_for(plan.spec.agent_name)
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if bottle.ssh:
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proxy_host_port = pipelock.pipelock_proxy_host_port(plan.slug)
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ssh_mod.ssh_setup(container, plan.stage_dir, proxy_host_port, bottle.ssh)
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if plan.spec.copy_cwd and Path(plan.spec.user_cwd, ".git").is_dir():
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info(f"copying {plan.spec.user_cwd}/.git -> {container}:/home/node/workspace/.git")
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subprocess.run(
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["docker", "cp", f"{plan.spec.user_cwd}/.git", f"{container}:/home/node/workspace/.git"],
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stdout=subprocess.DEVNULL,
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check=True,
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)
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subprocess.run(
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[
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"docker", "exec", "-u", "0", container,
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"chown", "-R", "node:node", "/home/node/workspace/.git",
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],
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stdout=subprocess.DEVNULL,
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check=True,
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)
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return in_container_prompt_path if agent.prompt else None
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