1FROM python:2.7-alpine 2# Dockerfile to run tests under python2.7 3 4# docker build -t ipaddress-python2.7 . -f test-python2.7.Dockerfile 5RUN apk add make 6RUN pip install flake8 7 8ADD . . 9RUN python test_ipaddress.py 10RUN make lint 11CMD python test_ipaddress.py 12