Dockerfile.prod

###########
# BUILDER #
###########

# Pull official base image
FROM python:3.8.2-alpine as builder

# 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 Pillow dependencies
RUN apk add jpeg-dev zlib-dev

# Install dependencies
RUN pip install --upgrade pip
COPY ./requirements.txt .
RUN pip wheel --no-cache-dir --no-deps --wheel-dir /usr/src/app/wheels -r requirements.txt

# Lint
COPY . .
RUN pip install black flake8 isort
RUN flake8 .
RUN black --exclude=migrations .
RUN isort ./*/*.py


#########
# FINAL #
#########

# Pull official base image
FROM python:3.8.2-alpine

# Set work directory
WORKDIR /usr/src/app

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1

ENV DEBUG 0
ARG SECRET_KEY
ENV SECRET_KEY $SECRET_KEY
ENV DJANGO_ALLOWED_HOSTS .herokuapp.com

ENV EMAIL_HOST_USER apikey
ARG EMAIL_HOST_PASSWORD
ENV EMAIL_HOST_PASSWORD $EMAIL_HOST_PASSWORD
ARG EMAIL_SENDER_EMAIL
ENV EMAIL_SENDER_EMAIL $EMAIL_SENDER_EMAIL

ENV POSTS_PER_PAGE 6
ENV COMMENTS_PER_PAGE 10
ENV SEARCH_RESULTS_PER_PAGE 20

# Install psycopg2 dependencies
RUN apk update \
    && apk add postgresql-dev gcc python3-dev musl-dev

# Install dependencies
COPY --from=builder /usr/src/app/wheels /wheels
COPY --from=builder /usr/src/app/requirements.txt .
RUN pip install --upgrade pip
RUN pip install --no-cache /wheels/*

# Copy project
COPY . .

# Collect static files
RUN python manage.py collectstatic --noinput

# Add and run as non-root user
RUN adduser -D myuser
USER myuser

# Run gunicorn
CMD gunicorn portfolio_project.wsgi:application --bind 0.0.0.0:$PORT