How to configure docker with django_crontab - docker

Question

Hi I'm trying to add a service to my docker https://pypi.org/project/django-crontab/ unfortunately despite reading a bunch of threads on the forum I still can't manage to configure the Dockerfile and docker-compose.yaml correctly. I would like to ask for help and clarification on what I am doing wrong.
Thank you for your reply
DockerFile
FROM python:3.10
RUN apt update
RUN apt-get install cron -y
RUN alias py=python
ENV PYTHONUNBUFFERED 1
WORKDIR /fieldguard
COPY . /fieldguard/
RUN pip install --upgrade pip
COPY requirments.txt /fieldguard/
RUN pip install -r requirments.txt
RUN chmod +x docker-entrypoint.sh
ENTRYPOINT ["./docker-entrypoint.sh"]
CMD ["python3", "manage.py", "runserver", "0.0.0.0:8080"]
docker_compoe.yaml
version: "3.9"
services:
db:
image: postgres:14.5
restart: unless-stopped
container_name: database
environment:
- POSTGRES_DB=${POSTGRES_DB}
- POSTGRES_USER=${POSTGRES_USER}
- POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
ports:
- "5432:5432"
web:
build: .
container_name: webapp
restart: unless-stopped
ports:
- "8000:8000"
depends_on:
- db
environment:
- SECRET_KEY=${SECRET_KEY}
- JWT_SECRET_KEY=${JWT_SECRET_KEY}
- FRONT_URL=${FRONT_URL}
- EMAIL_PORT=${EMAIL_PORT}
- EMAIL_HOST=${EMAIL_HOST}
- EMAIL_HOST_USER=${EMAIL_HOST_USER}
- EMAIL_HOST_PASSWORD=${EMAIL_HOST_PASSWORD}
- POSTGRES_DB=${POSTGRES_DB}
- POSTGRES_USER=${POSTGRES_USER}
- POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
- WRONG_SECRET_KEY=${WRONG_SECRET_KEY}
- DEVICE_SECRET_KEY_REGISTER=${DEVICE_SECRET_KEY_REGISTER}
- DEVICE_SECRET_KEY_LOGIN=${DEVICE_SECRET_KEY_LOGIN}
- TOKEN_EXPIRATION=${TOKEN_EXPIRATION}
- DEVICE_TOKEN_EXPIRATION=${DEVICE_TOKEN_EXPIRATION}
cron:
build: . # same as main application
restart: unless-stopped
env_file:
- .env
depends_on:
- db
command: cron -f # as a long-running foreground process
docker-entrypoint.sh
#!/bin/sh
# docker-entrypoint.sh
# If this is going to be a cron container, set up the crontab.
if [ "$1" = cron ]; then
python manage.py crontab add
fi
# Launch the main container command passed as arguments.
exec "$#"
settings.py
INSTALLED_APPS = [
'rest_framework',
'fg_backend',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'django_crontab',
]
CRONJOBS = [
('*/1 * * * *', 'fg_backend.cron.my_scheduled_job'),
]
And cron.py located in fg_backend/
from datetime import datetime, timedelta
import datetime
def my_scheduled_job():
try:
with open("logs/{}_{}.log".format(datetime.datetime.now().strftime('%Y-%m-%d'),
'CRONJOB'), "a+") as f:
f.write('{}_SomeTextOnly for test'.format(datetime.datetime.now()))
# TODO:: CREATE CRON JOB TO DELETE LOGS
# self.delete_older_logs()
except Exception as e:
print(e)
I will be very grateful for your help
I would like to configure django-crontab so that I can add some small shuffles. I know Celerity is also used but I don't need such a big tool.
Thank you very much for your help.