Docker container not finding manage.py using DRF - django

Question

I have been trying to containerise a project of mine that uses postgresql. But for some reason it is unable to perform the commands completely, when I check the web container, by following it on docker-desktop I can see that it is performing the migrations but at some point it stops and gives me the following error:
2023-01-17 19:51:29 Apply all migrations: admin, auth, company, contenttypes, oauth2_provider, product, sessions, social_django, users, warehouse
2023-01-17 19:51:29 Running migrations:
2023-01-17 19:51:29 No migrations to apply.
2023-01-17 19:51:29 sh: manage.py: not found
For some reason it does not see manage.py.
When I run docker-compose run web sh and when I check if manage.py exists in the directory using ls in the CLI I discover it is there.
What could I be doing wrong here?
The Dockerfile:
# pull official base image
FROM python:3.9-alpine
# set work directory
WORKDIR /app
# set environment variables
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1
# install psycopg2 dependencies
RUN apk update \
&& apk add postgresql-dev gcc python3-dev musl-dev
# install python dependencies
RUN apk add -u zlib-dev jpeg-dev libffi-dev gcc musl-dev
RUN python3 -m pip install --upgrade pip
COPY requirements.txt /app/requirements.txt
RUN pip install --no-cache-dir -r requirements.txt
# copy project
COPY . .
The docker-compose.yml:
version: '3.9'
services:
nginx:
container_name: core_web
restart: on-failure
image: nginx:stable
volumes:
- ./nginx/nginx.dev.conf:/etc/nginx/conf.d/default.conf
- static_volume:/app/static
ports:
- "80:80"
depends_on:
- web
web:
container_name: web
build: .
env_file: .env
ports:
- "5000:5000"
command: >
sh -c " python manage.py makemigrations && python manage.py migrate &&
manage.py runserver 0.0.0.0:5000"
volumes:
- .:/app
- static_volume:/app/static
depends_on:
- db
db:
container_name: core_db
image: postgres:15
env_file: .env
environment:
- POSTGRES_USER=${DB_USER}
- POSTGRES_PASSWORD=${DB_PASS}
- POSTGRES_DB=${DB_NAME}
volumes:
- postgres_data:/var/lib/postgresql/data/
volumes:
static_volume:
postgres_data:

Answer 1

I changed the web of my docker-compose.yml file:
web:
tty: true
container_name: web
build: .
restart: always
env_file: .env
ports:
- "5000:5000"
command: >
sh -c " python3 /app/manage.py makemigrations && python3 /app/manage.py migrate && python3 /app/manage.py runserver 0.0.0.0:5000"
volumes:
- .:/app
- static_volume:/app/static
depends_on:
- db
Basically, I added tty: true and changed command to:
sh -c " python3 /app/manage.py makemigrations && python3 /app/manage.py migrate && python3 /app/manage.py runserver 0.0.0.0:5000"
What I believe was happening:
I did not specify the folder of the location of the manage.py, which is what I believe I set in volumes to be /app. Thus I had to state in the command its location, feel free to correct me on this.
This made it functional and allowed me to access the backend and its postgres database.