A little new to docker so apologies for the noobish question in advance...but is it possible to mount the /app dir to the host so I can edit files locally?

I'm trying to do something like this (below) but the /app directory keeps coming up empty when the last two lines where I mount the volume are included in my docker-compose

Dockerfile

FROM tiangolo/uwsgi-nginx-flask:python3.6
LABEL maintainer="maintainer"
RUN git clone https://XXX:[email protected]/XXX/fitness.git
RUN pip install -U pip && pip install -r ./fitness/requirements.txt
ENV NGINX_WORKER_PROCESSES auto

Docker Compose

  fitly:
    build:
      context: ./dockercontrol-master
      dockerfile: fitly-dockerfile
    container_name: fitly
    depends_on:
      - mariadb
    ports:
      - "8050:8050"
    environment:
      - PUID=1001
      - PGID=100
    volumes:
      - /share/CACHEDEV2_DATA/Container/Fitly:/app

Currently this puts the root dir of my repo into the root dir of the container... Ideally I'd want to just inject the contents of my repo right into the /app folder, this way every time i rebuild the container with compose, it automatically just pulls the latest files from the repo

Thank you for this example.

Your code is not working because main.py is missing import flask.

Bonus: The import of dash_core is not used.