Dockerfile for installing nassl on Alpine Linux

Dockerfile_using_build_ext

FROM python:3.6.4-alpine3.7
MAINTAINER Shane Frasier <jeremy.frasier@beta.dhs.gov>

# Install git so we can checkout the nassl git repo.
#
# Also install build-base, libffi, libffi-dev, openssl, and
# openssl-dev since they are needed to build some of the dependencies
# of domain-scan.  With the exception of libffi and openssl, these are
# all build dependencies that can be removed at the end.
RUN apk update && apk upgrade
RUN apk --no-cache add git \
        build-base \
        libffi libffi-dev \
        openssl openssl-dev

##
# Make sure pip and setuptools are the latest versions
##
RUN pip install --upgrade pip setuptools

# Install nassl
RUN git clone https://github.com/nabla-c0d3/nassl.git
WORKDIR nassl
RUN pip install -r requirements.txt
RUN python setup.py build_ext -i
RUN python run_tests.py

Dockerfile_using_build_from_scratch

FROM python:3.6.4-alpine3.7
MAINTAINER Shane Frasier <jeremy.frasier@beta.dhs.gov>

# Install git so we can checkout the nassl git repo.
#
# Also install build-base, libffi, libffi-dev, openssl, and
# openssl-dev since they are needed to build some of the dependencies
# of domain-scan.  With the exception of libffi and openssl, these are
# all build dependencies that can be removed at the end.
RUN apk update && apk upgrade
RUN apk --no-cache add git \
        build-base \
        libffi libffi-dev \
        openssl openssl-dev \
        perl linux-headers

##
# Make sure pip and setuptools are the latest versions
##
RUN pip install --upgrade pip setuptools

# Install nassl
RUN git clone https://github.com/nabla-c0d3/nassl.git
WORKDIR nassl
RUN pip install -r requirements.txt
RUN wget http://zlib.net/zlib-1.2.11.tar.gz
RUN tar xvfz  zlib-1.2.11.tar.gz
RUN wget https://ftp.openssl.org/source/old/1.0.2/openssl-1.0.2e.tar.gz
RUN tar xvfz openssl-1.0.2e.tar.gz
RUN git clone -b tls1.3-draft-18 https://github.com/openssl/openssl.git ./openssl-master
RUN python build_from_scratch.py
RUN python setup.py build_ext -i
RUN python run_tests.py