pipenv 中安装的celery 如何进行Idaemon 化？

Question

我正在尝试在 Ubuntu 20.04、pipenv pipenv、版本 2023.2.18、FastAPI 0.95.1 和 Celery 5.2.7 中将 Celery 作为服务运行。

如果我在测试目录下做一个pipenv shell，然后做celery -A app.worker worker -loglevel=info，celery会正常运行。

然而，当我尝试用 systemd 守护芹菜时，我得到一个错误，我不知道我做错了什么。

这是我的 FastAPI 的项目树。

    test
    ├─ app
    │  ├─ dir1
    │  └─ worker
    │   ├─ __init__.py
    │        └─ celery.py
    ├─ main.py
    ├─ Pipfile
    └─ Pipfile.lock

这里是celery.py

    from celery import Celery
    import os 
    app = Celery('tasks', 
             broker=os.getenv('RABBITMQ_BROKER', 'amqp://user:password@localhost:5672'),
             backend='rpc://',
    )
    app.autodiscover_tasks(['app.dir1'], force=True)

这里是/etc/tmpfiles.d/celery.conf

    d /run/celery 0755 celery celery -
    d /var/log/celery 0755 celery celery -

这里是/etc/conf.d/celery

    CELERYD_NODES="w1"
    CELERY_BIN="/home/jhpark/.local/share/virtualenvs/test-iwv-TRuN/bin/celery"
    CELERY_APP='app.worker.celery:app'
    CELERYD_MULTI="multi"
    CELERYD_OPTS="--time-limit=300 --concurrency=8"
    CELERYD_PID_FILE="/var/run/celery/%n.pid"
    CELERYD_LOG_FILE="/var/log/celery/%n%I.log"
    CELERYD_LOG_LEVEL="INFO"

和/etc/systemd/system/celery.service

    [Unit]
    Description=Celery Service
    After=network.target

    [Service]
    Type=forking
    User=celery
    Group=celery
    EnvironmentFile=/etc/conf.d/celery
    WorkingDirectory=/home/jhpark/test/app
    ExecStart=/bin/sh -c '${CELERY_BIN} -A $CELERY_APP multi start $CELERYD_NODES \
        --pidfile=${CELERYD_PID_FILE} --logfile=${CELERYD_LOG_FILE} \
        --loglevel="${CELERYD_LOG_LEVEL}" $CELERYD_OPTS'
    ExecStop=/bin/sh -c '${CELERY_BIN} multi stopwait $CELERYD_NODES \
        --pidfile=${CELERYD_PID_FILE} --logfile=${CELERYD_LOG_FILE} \
        --loglevel="${CELERYD_LOG_LEVEL}"'
    ExecReload=/bin/sh -c '${CELERY_BIN} -A $CELERY_APP multi restart $CELERYD_NODES \
        --pidfile=${CELERYD_PID_FILE} --logfile=${CELERYD_LOG_FILE} \
        --loglevel="${CELERYD_LOG_LEVEL}" $CELERYD_OPTS'
    Restart=always

    [Install]
    WantedBy=multi-user.target

当我使用

systemctl start celery.service

运行 celery.service 时，出现以下错误：

    May 10 18:27:35 Artience-0128 systemd[1]: Starting Celery Service...
    May 10 18:27:35 Artience-0128 sh[6699]: Usage: celery [OPTIONS] COMMAND [ARGS]...
    May 10 18:27:35 Artience-0128 sh[6699]: Try 'celery --help' for help.
    May 10 18:27:35 Artience-0128 sh[6699]: Error: Invalid value for '-A' / '--app':
    May 10 18:27:35 Artience-0128 sh[6699]: Unable to load celery application.
    May 10 18:27:35 Artience-0128 sh[6699]: The module /home/jhpark/test/app/worker/celery was not    found.