# Dockerfile

#!/bin/bash

FROM python:3.6-alpine
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1
RUN mkdir /usr/src/app
WORKDIR /usr/src/app
RUN apk update \
    && apk add --virtual build-deps gcc python3-dev musl-dev libc-dev \
    && apk add postgresql-dev \
    && pip install psycopg2 \
    && apk del build-deps
RUN pip install --upgrade pip
RUN pip install pipenv
COPY ./Pipfile /usr/src/app
RUN pipenv install --skip-lock --system --dev
COPY ./entrypoint.sh /usr/src/app
RUN chmod +x /usr/src/app/entrypoint.sh
COPY . /usr/src/app
ENTRYPOINT [ "/usr/src/app/entrypoint.sh" ]

# **** docker-compose.yml *******

version: '3'
services:
  web:
    build: .
    command: python manage.py runserver 0.0.0.0:8000
    volumes:
      - .:/code
      - static_volume:/code/staticfiles
    expose:
      - 8000
    environment:
      - SQL_ENGINE=django.db.backends.postgresql
      - SQL_DATABASE=postgres
      - SQL_USER=postgres
      - SQL_PASSWORD=postgres
      - SQL_HOST=db
      - SQL_PORT=5432
      - DATABASE=postgres
    depends_on:
      - db
  db:
    image: postgres:10.5-alpine
  nginx:
    build: ./nginx
    volumes:
      - static_volume:/usr/src/app/staticfiles
    ports:
      - 1337:80
    depends_on:
      - web

volumes:
    static_volume:


# ********** entrypoint.sh **********

#!/bin/sh
if [ "$DATABASE" = "postgres" ]
then
    echo "Esperando por postgres..."
    while ! nc -z $SQL_HOST $SQL_PORT; do
        sleep 0.1
    done

    echo "PostgreSQL started"
fi

python manage.py flush --noinput
python manage.py makemigrations
python manage.py migrate
python manage.py collectstatic --noinput

exec "$@"