I'm building a Django/React app using docker-compose, and I'd like it to reload my apps when a change is made, so far I've tried adding CHOKIDAR_USEPOLLING,
adding npm-watch to my package.json, but it doesn't seem to be able to detect changes in the host file.
Ideally I don't want to have to run docker-compose up --build every time I make a change since it's making development tedious.
edit: I should mention that the apps both reload running outside of docker (npm start (cra default) and python manage.py runserver) as expected.
Changes are detected inside the container, but the react app will not rebuild.
I'm using Windows 10 also.
Is there something wrong with my files or something else I should be doing here?
docker-compose.yml
version: "3.9"
services:
db:
container_name: db
image: postgres
volumes:
- ./data/db:/var/lib/postgresql/data
environment:
- POSTGRES_DB=postgres
- POSTGRES_USER=postgres
- POSTGRES_PASSWORD=postgres
backend:
container_name: backend
build: ./backend
command: python manage.py runserver 0.0.0.0:8000
volumes:
- .:/core
ports:
- "8000:8000"
depends_on:
- db
frontend:
container_name: frontend
build: ./frontend
command: npm start
volumes:
- './frontend:/app/'
- '/frontend/node_modules'
ports:
- "3000:3000"
environment:
- CHOKIDAR_USEPOLLING=true
depends_on:
- backend
# Enable interactive terminal (crucial for react container to work)
stdin_open: true
tty: true
backend Dockerfile
FROM python:3
ENV PYTHONUNBUFFERED=1
WORKDIR /code/
COPY requirements.txt /code/
RUN pip install -r requirements.txt
COPY . /code/
frontend Dockerfile
FROM node:16
WORKDIR /app/
COPY package*.json /app/
RUN npm install
COPY . /app/
EXPOSE 3000
CMD ["npm", "start"]
Instead of copying you should mount volumes directly to the folder where you run the code on your docker image. In that way your code changes will be reflected in your app.
Example in docker-compose.yml:
volumes:
- "local_source_destination:/server_source_destination"
In your frontend docker-compose-yml you have:
volumes:
- '.:/frontend/app'
but in your Dockerfile your have
COPY . /app/
So it seems like your are mixing up where to mount your volume. Make sure '.' is where your root of your code folder is or change it accordingly.
Try something like:
volumes:
- '.:/app'
As that seems to be the location your server wants your code to be.
If your code is correctly mounted to the right destination it might be that you are not running your watch script from inside the docker container. Try running:
docker exec -itw source_destination_in_container your_container_name command_to_run_watch