Error with docker-entrypoint-initdb.d/init.sql: ERROR: relation "mytable" does not exist

Hi,

I have develop a Django app and try to “dockerize” it but I am newbie in Docker and docker-compose

I want to initialize a postgres database based on init.sql file, placed in docker-entrypoint-initdb.d folder in my container
when running docker-compose up -d -build, my 2 containers are built and running but database is empty

docker logs <my_db_container> show me an error because the first table I try to INSERT doe not exist.

what I do wrong?
thanks for help

Dockerfile

FROM python:3.8.3-alpine

WORKDIR /usr/src/app

ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1

RUN apk update && apk add postgresql-dev gcc python3-dev musl-dev
RUN apk --update add libxml2-dev libxslt-dev libffi-dev gcc musl-dev libgcc openssl-dev curl
RUN apk add jpeg-dev zlib-dev freetype-dev lcms2-dev openjpeg-dev tiff-dev tk-dev tcl-dev
RUN pip3 install psycopg2 psycopg2-binary

COPY requirements/ requirements/

RUN pip install --upgrade pip && pip install -r requirements/dev.txt

COPY ./entrypoint.sh .
COPY . .

ENTRYPOINT [ “/usr/src/app/entrypoint.sh” ]

docker-compose.yml

version: ‘3.7’

services:
web:
build: ./app
restart: always
command: python manage.py runserver 0.0.0.0:8000
volumes:
- ./app/:/usr/src/app
ports:
- 8000:8000
env_file:
- ./.env.dev
depends_on:
- db

db:
    image: postgres:12.0-alpine
    restart: always
    volumes:
        - postgres_data:/var/lib/postgres/data/
        - ./imports/init.sql:/docker-entrypoint-initdb.d/init.sql
        - ./imports/adm_ran.csv:/imports/adm_ran.csv
        - ./imports/adm_med.csv:/imports/adm_med.csv

    environment:
        - POSTGRES_USER=user
        - POSTGRES_PASSWORD=user
        - POSTGRES_DB=db_dev

volumes:
postgres_data: