使用卷挂载的Docker上的事件监听器不起作用

Question

Some folder is mounted using:

docker run -it  C:\Users\User\Documents\project\input:/app/input/ project:latest 

In the container a Python a watchdog.observers instance is running to detect if new files are added to the host folder. These files end up in the Docker container via the volume mount. The file created event trigger does not reach the Docker container. I think this is strange because in the Docker container events are also happening right?

When I run my code locally and not in Docker the eventlistener it is working.

Does event listening work in my context?

main.py

from watch import ImagesWatcher

if __name__ == '__main__':
    src_path = "/app/input/"
    ImagesWatcher(src_path).run()

watch.py

import sys
import time

from watchdog.observers import Observer
from ImagesEventHandler import ImagesEventHandler


class ImagesWatcher:
    def __init__(self, src_path):
        self.__src_path = src_path
        self.__event_handler = ImagesEventHandler()
        self.__event_observer = Observer()


    def run(self):
        self.start()
        try:
            while True:
                time.sleep(1)
        except KeyboardInterrupt:
            self.stop()

    def start(self):
        self.__schedule()
        self.__event_observer.start()

    def stop(self):
        self.__event_observer.stop()
        self.__event_observer.join()

    def __schedule(self):
        self.__event_observer.schedule(
            self.__event_handler,
            self.__src_path,
            recursive=True
        )

if __name__ == "__main__":
    src_path = sys.argv[1] if len(sys.argv) > 1 else '.'
    ImagesWatcher(src_path).run()

imagesEventHandler.py

from watchdog.events import RegexMatchingEventHandler

class ImagesEventHandler(RegexMatchingEventHandler):
    THUMBNAIL_SIZE = (128, 128)
    IMAGES_REGEX = [r".*[^_thumbnail]\.jpg$"]

    def __init__(self):
        # self.Analyzer = Analyzer()
        super().__init__(self.IMAGES_REGEX)

    def on_created(self, event):
        self.process(event)

    def process(self, event):
        print("DETECTED")

Dockerfile:

FROM python:3.6
RUN pip install watchdog
ADD . .
WORKDIR /app/
RUN main.py

Answer 1

一位同事向我推荐了以下内容： https : //github.com/merofeev/docker-windows-volume-watcher