70 lines
1.8 KiB
Python
70 lines
1.8 KiB
Python
#!/usr/bin/env python3
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import multiprocessing
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import os
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import socket
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from dataclasses import dataclass
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from pathlib import Path
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from buildbot_worker.bot import Worker
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from twisted.application import service
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def require_env(key: str) -> str:
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val = os.environ.get(key)
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assert val is not None, "val is not set"
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return val
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@dataclass
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class WorkerConfig:
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password: str = Path(require_env("WORKER_PASSWORD_FILE")).read_text().rstrip("\r\n")
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worker_count: int = int(
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os.environ.get("WORKER_COUNT", str(multiprocessing.cpu_count()))
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)
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buildbot_dir: str = require_env("BUILDBOT_DIR")
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master_url: str = require_env("MASTER_URL")
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def setup_worker(
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application: service.Application, id: int, config: WorkerConfig
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) -> None:
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basedir = f"{config.buildbot_dir}-{id}"
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os.makedirs(basedir, mode=0o700, exist_ok=True)
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hostname = socket.gethostname()
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workername = f"{hostname}-{id}"
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keepalive = 600
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umask = None
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maxdelay = 300
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numcpus = None
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allow_shutdown = None
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s = Worker(
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None,
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None,
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workername,
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config.password,
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basedir,
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keepalive,
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connection_string=config.master_url,
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umask=umask,
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maxdelay=maxdelay,
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numcpus=numcpus,
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allow_shutdown=allow_shutdown,
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)
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# defaults to 4096, bump to 10MB for nix-eval-jobs
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s.bot.max_line_length = 10485760
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s.setServiceParent(application)
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def setup_workers(application: service.Application, config: WorkerConfig) -> None:
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for i in range(config.worker_count):
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setup_worker(application, i, config)
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# note: this line is matched against to check that this is a worker
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# directory; do not edit it.
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application = service.Application("buildbot-worker")
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setup_workers(application, WorkerConfig())
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