Django/Docker: migration not detected and not applied - django

Question

Stack: Django/Docker/Docker-compose/Postgresql (not in container)
I have made modifications, including models updates, saved and push to my remote Gitlab repository.
Then, I pulled modification from my Gitlab repo on the preprod server and I can see that I have the modified version on the server.
But when I stop and restart the container, it does not detect any changes and does not apply the migrations.
I also checked, the entrypoint.preprod.sh file contains the makemigrations and migrate commands.
I have tried by rebuilding it with docker-compose build then run it, but it doesn't work anymore.
I tried by connecting directly to my container (docker exec -it web sh) but makemigrations are not detected and migrations are therefore not applied.
I must be missing something but what?
docker-compose-preprod.yml
version: '3.7'
services:
web:
restart: always
container_name: virage_web
build:
context: ./app
dockerfile: Dockerfile.preprod
restart: always
command: gunicorn core.wsgi:application --bind 0.0.0.0:8000
volumes:
- app_volume:/usr/src/app
- static_volume:/usr/src/app/static
- media_volume:/usr/src/app/media
expose:
- 8000
env_file:
- ./.env.preprod
entrypoint: [ "/usr/src/app/entrypoint.preprod.sh" ]
depends_on:
- redis
healthcheck:
test: ["CMD", "curl", "-f", "http://localhost:8000/"]
interval: 30s
timeout: 10s
retries: 50
redis:
container_name: virage_redis
image: "redis:alpine"
celery:
container_name: virage_celery
build:
context: ./app
dockerfile: Dockerfile.preprod
command: celery -A core worker -l info
volumes:
- app_volume:/usr/src/app
env_file:
- ./.env.preprod
depends_on:
- web
- redis
celery-beat:
container_name: virage_celery-beat
build:
context: ./app
dockerfile: Dockerfile.preprod
command: celery -A core beat -l info
volumes:
- app_volume:/usr/src/app
env_file:
- ./.env.preprod
depends_on:
- web
- redis
nginx:
container_name: virage_nginx
build: ./nginx
restart: always
volumes:
- static_volume:/usr/src/app/static
- media_volume:/usr/src/app/media
ports:
- 1350:80
depends_on:
- web
volumes:
static_volume:
media_volume:
app_volume:
Dockerfile.preprod
# Pull the official base image
FROM python:3.8.3-alpine
# Set a work directory
WORKDIR /usr/src/app
# Set environment variables
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1
# install psycopg2 dependencies
RUN apk update && apk add postgresql-dev gcc g++ python3-dev musl-dev
RUN apk --update add libxml2-dev libxslt-dev libffi-dev musl-dev libgcc openssl-dev curl postgresql-client
RUN apk add jpeg-dev zlib-dev freetype-dev lcms2-dev openjpeg-dev tiff-dev tk-dev tcl-dev nano
RUN pip3 install psycopg2 psycopg2-binary
# install xgettext for i18n
RUN apk add gettext
# Install dependencies
COPY requirements/ requirements/
RUN pip install --upgrade pip && pip install -r requirements/preprod.txt
# Copy the entrypoint.sh file
COPY entrypoint.preprod.sh .
# Copy the initdata sql file
COPY initdata.preprod.sql .
# Copy the project's files
COPY . .
RUN chmod +x entrypoint.preprod.sh
entrypoint.preprod.sh
#!/bin/sh
if [ "$DATABASE" = "postgres" ]
then
echo "Waiting for postgres..."
while ! nc -z $SQL_HOST $SQL_PORT; do
sleep 0.1
done
echo "PostgreSQL started"
fi
# python manage.py flush --no-input
python manage.py makemigrations
python manage.py migrate
python manage.py collectstatic --no-input
python manage.py makemessages -l fr
python manage.py compilemessages
exec "$#"