feat(chv-muse-round11): 执行器接 nspawn 单元(P2 差距表 §4)

客内 host.py 调用改为 chv-cell run -- python3 /app/host.py
--state /home/chv/.codex/host-state.json --codex-home
/home/chv/.codex --sandbox danger-full-access …,其余原参数
原样保留。--sandbox 放全局参数最后(argparse 后胜出),
单元内恒为 danger-full-access,调用方 read-only 不得盖回
bwrap;非单元路径(本地/Docker/冷启动回落)不动。

开关 CHV_CELL_ENABLED:只认 0/1,默认 1 开;非法值
ValueError(_to_switch 同款口径)。关时走原命令,给
lite10 及更早无单元的旧镜像留逃生口。

测试:新 test_chv_muse_round11_cell.py 7 项(开/关 argv、
原参数保留、sandbox 只在单元路径、非法值报错、SSH 层
接线);test_host_command_options_identical_across_executors
显式关单元测三执行器参数全等,断言本身未动。
全量 cloud 套件 2011 OK(skipped=8)。
This commit is contained in:
host committed 2026-11-06 21:58:01 +00:00
1 parent 304707b372
commit 73176e135c
3 files changed
+231 -3

No files matched your search

+46 -2
View File
@@ -38,7 +38,8 @@ from collections.abc import Callable
from cloud.chv.api_client import _unix_socket_api, normalize_api_result from cloud.chv.api_client import _unix_socket_api, normalize_api_result
from cloud.chv.atomic_file import atomic_write_text from cloud.chv.atomic_file import atomic_write_text
from cloud.chv.config import _parse_memory_bytes, build_chv_config from cloud.chv.config import _parse_memory_bytes, _to_switch
from cloud.chv.config import build_chv_config
from cloud.chv.disk import ( from cloud.chv.disk import (
check_disk_quota, check_disk_quota,
check_snapshot_limits, check_snapshot_limits,
@@ -76,6 +77,13 @@ def _default_popen_launcher(cmd):
stderr=subprocess.DEVNULL, start_new_session=True) stderr=subprocess.DEVNULL, start_new_session=True)
# round-11 集成补洞(P2 差距表 §4):单元内 host.py 的显式路径。
# 单元内 /app 只读,host.py 默认 state(/app/host-state.json)
# 写不进;~/.codex 是单元内 bind 的可写路径。
_CELL_STATE_PATH = "/home/chv/.codex/host-state.json"
_CELL_CODEX_HOME = "/home/chv/.codex"
class CloudHypervisorExecutor(Executor): class CloudHypervisorExecutor(Executor):
"""Cloud Hypervisor 执行器 v1(命名:cloud-hypervisor,绝不用 """Cloud Hypervisor 执行器 v1(命名:cloud-hypervisor,绝不用
cloud/ch 缩写——cloud 已是通用 HTTP runner 占位,撞名会让 cloud/ch 缩写——cloud 已是通用 HTTP runner 占位,撞名会让
@@ -240,6 +248,10 @@ class CloudHypervisorExecutor(Executor):
0/1,非法值 ValueError) 0/1,非法值 ValueError)
- CHV_VSOCK_CID:客机 vsock CID(默认 3;须在 - CHV_VSOCK_CID:客机 vsock CID(默认 3;须在
3-4294967295 内,0/1/2 为保留 CID) 3-4294967295 内,0/1/2 为保留 CID)
- CHV_CELL_ENABLED:nspawn 单元开关(默认 1 开;只认
0/1,非法值 ValueError)。开时客内 host.py 改走
chv-cell run(P2 差距表 §4);关时走原命令,给
lite10 及更早无单元的旧镜像留逃生口
前置校验(preflight,执行入口必调,缺一即 fail-fast): 前置校验(preflight,执行入口必调,缺一即 fail-fast):
收集全部缺失项一次报出具体缺哪一项,绝不笼统报错: 收集全部缺失项一次报出具体缺哪一项,绝不笼统报错:
@@ -1411,13 +1423,31 @@ class CloudHypervisorExecutor(Executor):
子命令之前,共享 helper 在 cloud/sandbox.py)。 子命令之前,共享 helper 在 cloud/sandbox.py)。
guest_host_py 默认 /app/host.py:客机镜像须把 host.py guest_host_py 默认 /app/host.py:客机镜像须把 host.py
放在该路径(与 Docker 的 /app:ro 同款约定,只是载体 放在该路径(与 Docker 的 /app:ro 同款约定,只是载体
从容器换成 VM 镜像)。""" 从容器换成 VM 镜像)。
round-11 集成补洞(P2 差距表 §4):单元开时(默认)
命令改为 chv-cell run -- python3 /app/host.py --state
/home/chv/.codex/host-state.json --codex-home
/home/chv/.codex … --sandbox danger-full-access [子命令
...]。--state/--codex-home 须显式给(见模块顶 _CELL_*
注释);--sandbox 放全局参数最后(argparse 后胜出),
确保单元内恒为 danger-full-access:单元即沙箱,调用
方传的 read-only(plan 任务)与 approval=full 自带的
值都不得把它盖回 bwrap。单元关时
(CHV_CELL_ENABLED=0)走原命令,给无单元的旧镜像留
逃生口。"""
from cloud.sandbox import _host_command_options from cloud.sandbox import _host_command_options
cell = self._cell_enabled()
cmd = ["python3", self.guest_host_py] cmd = ["python3", self.guest_host_py]
if cell:
cmd = ["chv-cell", "run", "--"] + cmd
cmd += ["--state", _CELL_STATE_PATH,
"--codex-home", _CELL_CODEX_HOME]
cmd += _host_command_options( cmd += _host_command_options(
model=model, effective_model=self.model, model=model, effective_model=self.model,
model_provider=model_provider, effort=effort, model_provider=model_provider, effort=effort,
approval=approval, sandbox=sandbox) approval=approval, sandbox=sandbox)
if cell:
cmd += ["--sandbox", "danger-full-access"]
cmd += list(args) cmd += list(args)
return cmd return cmd
@@ -2519,6 +2549,20 @@ class CloudHypervisorExecutor(Executor):
"interrupted_reason": reason, "interrupted_reason": reason,
} }
def _cell_enabled(self):
"""nspawn 单元开关(round-11 集成补洞,P2 差距表 §4):
CHV_CELL_ENABLED 默认 1(开)。只认 "1"/"0",其它值
ValueError(_to_switch 的 CHV_BALLOON/CHV_VSOCK 同款
口径,绝不静默 fallback)。关时 _guest_host_command
走原命令,给 lite10 及更早无单元的旧镜像留逃生口;
开时走 chv-cell run -- python3 /app/host.py …。读
self._env(与 _resident_enabled 同款惰性读法),不
经 config:开关只影响命令构造,不影响建池/起 VM。"""
flag = _to_switch(
self._env.get("CHV_CELL_ENABLED", "1"),
"CHV_CELL_ENABLED")
return True if flag is None else flag
def _resident_enabled(self): def _resident_enabled(self):
"""常驻默认开;CHV_RESIDENT_ENABLED=0/false/no/off 关。 """常驻默认开;CHV_RESIDENT_ENABLED=0/false/no/off 关。
优先认执行器上已有的 resident_enabled 属性(P1-B 若 优先认执行器上已有的 resident_enabled 属性(P1-B 若
+177
View File
@@ -0,0 +1,177 @@
"""round-11 集成补洞:执行器接 nspawn 单元(P2 差距表 §4)。
只测 _guest_host_command 的命令构造与 CHV_CELL_ENABLED 开关:
单元开(默认)时 host.py 调用改为 chv-cell run -- python3
/app/host.py --state … --codex-home … --sandbox
danger-full-access …;单元关时走原命令;非法开关值即
ValueError。只用 mock,不启动真实 VM、不连真实网络。
"""
import os
import sys
import tempfile
import unittest
from pathlib import Path
try:
from cloud.chv import CloudHypervisorExecutor
except ImportError: # discover -s cloud/tests 时把项目根目录补进 sys.path
sys.path.insert(0, str(Path(__file__).resolve().parents[2]))
from cloud.chv import CloudHypervisorExecutor
class FakeResult:
def __init__(self, returncode=0, stdout="", stderr=""):
self.returncode = returncode
self.stdout = stdout
self.stderr = stderr
class FakeProc:
def __init__(self, alive=True):
self._alive = alive
def poll(self):
return None if self._alive else 1
def _write(path, data=b"x"):
with open(path, "wb") as fh:
fh.write(data)
return path
class CellCase(unittest.TestCase):
def setUp(self):
self.tmp = tempfile.TemporaryDirectory()
self.dir = self.tmp.name
self.binary = _write(os.path.join(self.dir, "cloud-hypervisor"))
self.ch_remote = _write(os.path.join(self.dir, "ch-remote"))
self.kernel = _write(os.path.join(self.dir, "vmlinux"))
self.rootfs = _write(os.path.join(self.dir, "disk.raw"),
b"R" * 100)
self.ssh_key = _write(os.path.join(self.dir, "id_chv"))
self.kvm = _write(os.path.join(self.dir, "kvm"))
self.cpuinfo = os.path.join(self.dir, "cpuinfo")
with open(self.cpuinfo, "w") as fh:
fh.write("flags : fpu vmx sse\n")
self.state_dir = os.path.join(self.dir, "state")
def tearDown(self):
self.tmp.cleanup()
def make_exec(self, env_extra=None):
env = {"CHV_EGRESS_PROXY": "http://10.0.0.1:8888",
"CHV_HOST_KEY_MODE": "keyscan",
"CHV_SSH_FORWARD": "1"}
if env_extra:
env.update(env_extra)
return CloudHypervisorExecutor(
binary=self.binary, ch_remote=self.ch_remote,
kernel=self.kernel, rootfs=self.rootfs,
ssh_key=self.ssh_key, kvm_path=self.kvm,
cpuinfo_path=self.cpuinfo, state_dir=self.state_dir,
runner=lambda cmd, timeout=None: FakeResult(0, "", ""),
launcher=lambda cmd: FakeProc(alive=True),
api_client=lambda *a, **k: (200, {}),
sleeper=lambda s: None, env=env)
class CellCommandTest(CellCase):
def test_cell_on_by_default(self):
# 开关未设即默认开:完整命令与契约示例一致。
ex = self.make_exec()
cmd = ex._guest_host_command("status", "--task", "t1")
self.assertEqual(cmd, [
"chv-cell", "run", "--",
"python3", "/app/host.py",
"--state", "/home/chv/.codex/host-state.json",
"--codex-home", "/home/chv/.codex",
"--sandbox", "danger-full-access",
"status", "--task", "t1"])
def test_cell_on_explicit_1(self):
ex = self.make_exec(env_extra={"CHV_CELL_ENABLED": "1"})
cmd = ex._guest_host_command("status", "--task", "t1")
self.assertEqual(cmd[:3], ["chv-cell", "run", "--"])
self.assertIn("--sandbox", cmd)
self.assertEqual(
cmd[cmd.index("--sandbox") + 1], "danger-full-access")
def test_cell_off_returns_original_command(self):
# 关时走原命令:一个 token 也不多不少(旧镜像逃生口)。
ex = self.make_exec(env_extra={"CHV_CELL_ENABLED": "0"})
cmd = ex._guest_host_command("status", "--task", "t1")
self.assertEqual(cmd, ["python3", "/app/host.py",
"status", "--task", "t1"])
self.assertNotIn("chv-cell", cmd)
self.assertNotIn("--state", cmd)
self.assertNotIn("--codex-home", cmd)
self.assertNotIn("--sandbox", cmd)
def test_cell_on_preserves_original_params(self):
# 原参数一个不少:model/provider/effort/approval/
# 调用方 sandbox 与子命令全部保留且顺序不变;强制的
# danger-full-access 放全局参数最后,盖过调用方的
# read-only(argparse 后胜出),read-only 本身仍在。
ex = self.make_exec()
cmd = ex._guest_host_command(
"dispatch", "--name", "t", "--task", "x",
model="m1", effort="low", approval="ask",
model_provider="sub2api", sandbox="read-only")
self.assertEqual(cmd, [
"chv-cell", "run", "--",
"python3", "/app/host.py",
"--state", "/home/chv/.codex/host-state.json",
"--codex-home", "/home/chv/.codex",
"--model", "m1",
"--model-provider", "sub2api",
"--effort", "low",
"--approval-policy", "untrusted",
"--sandbox", "read-only",
"--sandbox", "danger-full-access",
"dispatch", "--name", "t", "--task", "x"])
# --state/--codex-home 紧跟 host.py 路径。
host_idx = cmd.index("/app/host.py")
self.assertEqual(
cmd[host_idx + 1:host_idx + 5],
["--state", "/home/chv/.codex/host-state.json",
"--codex-home", "/home/chv/.codex"])
def test_sandbox_only_in_cell_path(self):
# 调用方没给 sandbox、approval 也没带时:单元路径
# 有且仅有一个 --sandbox(danger-full-access),
# 非单元路径一个也没有。
cell_on = self.make_exec()
on_cmd = cell_on._guest_host_command("status", "--task", "t1")
self.assertEqual(on_cmd.count("--sandbox"), 1)
self.assertEqual(
on_cmd[on_cmd.index("--sandbox") + 1],
"danger-full-access")
cell_off = self.make_exec(
env_extra={"CHV_CELL_ENABLED": "0"})
off_cmd = cell_off._guest_host_command(
"status", "--task", "t1")
self.assertEqual(off_cmd.count("--sandbox"), 0)
def test_cell_invalid_value_raises(self):
# 只认 0/1:非法值即 ValueError,不静默 fallback。
for bad in ("yes", "2", "", " true"):
ex = self.make_exec(
env_extra={"CHV_CELL_ENABLED": bad})
with self.assertRaises(ValueError):
ex._guest_host_command("status", "--task", "t1")
def test_cell_wiring_reaches_ssh_command(self):
# 接线落到 SSH 层:build_ssh_command 的远端命令里
# chv-cell 前缀在、python3 在其后。
ex = self.make_exec()
inner = ex._guest_host_command("status", "--task", "t1")
cmd = ex.build_ssh_command({"id": "t1"}, inner)
self.assertIn("chv-cell", cmd)
self.assertIn("danger-full-access", cmd)
self.assertLess(cmd.index("chv-cell"), cmd.index("python3"))
if __name__ == "__main__":
unittest.main()
+8 -1
View File
@@ -244,7 +244,14 @@ class SharedGoalTest(unittest.TestCase):
chv = ChvOptCase() chv = ChvOptCase()
chv.setUp() chv.setUp()
try: try:
ex = chv.make_exec() # 单元路径(CHV_CELL_ENABLED 默认开)有意加 CHV
# 专属 argv:chv-cell 前缀 + --state/--codex-home
# + 强制 --sandbox danger-full-access,三执行器
# 顶层参数全等只在非单元路径上有意义,故这里显式
# 关单元;单元路径的“原参数一个不少”由
# test_chv_muse_round11_cell.py 钉死。
ex = chv.make_exec(
env_extra={"CHV_CELL_ENABLED": "0"})
local = LocalExecutor("/tmp/host.py") local = LocalExecutor("/tmp/host.py")
docker = DockerExecutor() docker = DockerExecutor()
for kwargs in ( for kwargs in (