Add Docker Dojango - Postgres

Author: brian-emarquez

Docker_Django/.env

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+DEBUG=1
+SECRET_KEY='django-insecure-+rjud+mt^+c*p-&#m5^m65m)$0$^$159h@#m0i4-n+ayp80xc+'
+
+DJANGO_ALLOWED_HOSTS=localhost 127.0.0.1 [::1]
+
+SQL_ENGINE=django.db.backends.postgresql
+SQL_DATABASE=hello_django_dev
+SQL_USER=hello_django
+SQL_PASSWORD=hello_django
+# SQL_HOST=db
+SQL_PORT=5432
+DATABASE=postgres

Docker_Django/app/Dockerfile

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+# pull official base image
+FROM python:3.9.6-alpine
+
+# set 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 python3-dev musl-dev
+
+# install dependencies
+RUN pip install --upgrade pip
+COPY ./requirements.txt .
+RUN pip install -r requirements.txt
+
+# copy entrypoint.sh
+COPY ./entrypoint.sh .
+RUN sed -i 's/\r$//g' /usr/src/app/entrypoint.sh
+RUN chmod +x /usr/src/app/entrypoint.sh
+
+# copy project
+COPY . .
+
+# run entrypoint.sh
+ENTRYPOINT ["/usr/src/app/entrypoint.sh"]

Docker_Django/app/db.sqlite3

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+version: '3.8'
+
+services:
+  # Browrser
+  web:
+    build: ../app
+    command: python manage.py runserver 0.0.0.0:8001
+    volumes:
+      - ../app/:/usr/src/app/
+    ports:
+      - 8001:8001
+    env_file:
+      - ../.env
+    depends_on:
+      - db
+    
+  # Postgres
+  db:
+    image: postgres:13.0-alpine
+    volumes:
+      - postgres_data:/var/lib/postgresql/data/
+    environment:
+      - POSTGRES_USER=hello_django
+      - POSTGRES_PASSWORD=hello_django
+      - POSTGRES_DB=hello_django_dev
+
+volumes:
+  postgres_data:

Docker_Django/app/docker-compose.yml

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+#!/bin/sh
+
+if [ "$DATABASE" = "postgres" ]
+then
+    echo "Waiting for postgres..."
+
+    while ! nc -z $SQL_HOST $SQL_PORT; do
+      sleep 0.1
+    done
+
+    echo "PostgreSQL started"
+fi
+
+python manage.py flush --no-input
+python manage.py migrate
+
+exec "$@"