Docker master pieces

Alpine without build dependencies

### Slim version

FROM python:2.7-slim
MAINTAINER Nick Janetakis <nick.janetakis@gmail.com>

RUN apt-get update && apt-get install -qq -y \
  build-essential libpq-dev libffi-dev --no-install-recommends

ENV INSTALL_PATH /bsawf
RUN mkdir -p $INSTALL_PATH

WORKDIR $INSTALL_PATH

COPY requirements.txt requirements.txt
RUN pip install -r requirements.txt

COPY . .

CMD gunicorn -b 0.0.0.0:8000 --access-logfile - "bsawf.app:create()"

### Alpine based Dockerfile

FROM python:2.7-alpine
MAINTAINER Nick Janetakis <nick.janetakis@gmail.com>

RUN apk update && apk add build-base postgresql-dev libffi-dev

ENV INSTALL_PATH /bsawf
RUN mkdir -p $INSTALL_PATH

WORKDIR $INSTALL_PATH

COPY requirements.txt requirements.txt
RUN pip install -r requirements.txt

COPY . .

CMD gunicorn -b 0.0.0.0:8000 --access-logfile - "bsawf.app:create()"

### Optimized Alpine based Dockerfile

FROM python:2.7-alpine
MAINTAINER Nick Janetakis <nick.janetakis@gmail.com>

ENV INSTALL_PATH /bsawf
RUN mkdir -p $INSTALL_PATH

WORKDIR $INSTALL_PATH

COPY requirements.txt requirements.txt
RUN apk add --no-cache --virtual .build-deps \
  build-base postgresql-dev libffi-dev \
    && pip install -r requirements.txt \
    && find /usr/local \
        \( -type d -a -name test -o -name tests \) \
        -o \( -type f -a -name '*.pyc' -o -name '*.pyo' \) \
        -exec rm -rf '{}' + \
    && runDeps="$( \
        scanelf --needed --nobanner --recursive /usr/local \
                | awk '{ gsub(/,/, "\nso:", $2); print "so:" $2 }' \
                | sort -u \
                | xargs -r apk info --installed \
                | sort -u \
    )" \
    && apk add --virtual .rundeps $runDeps \
    && apk del .build-deps

COPY . .

CMD gunicorn -b 0.0.0.0:8000 --access-logfile - "bsawf.app:create()"