Add Dockerised testing environment

Dockerfile

+FROM cern/slc6-base
+RUN yum update -y
+RUN yum install -y python2-devel
+RUN yum install -y python-setuptools python-requests python-requests-kerberos python-six
+RUN yum install -y pytest
+RUN yum install -y libxml2-devel python-lxml
+RUN yum install -y gcc make
+RUN mkdir /var/workdir
+RUN mkdir /home/work
+COPY . /var/workdir
+WORKDIR /home/work

Makefile

@@ -70,3 +70,13 @@ deploy:
 	git tag -f $(shell python setup.py --version 2>&1)
 	git push --tags
 .PHONY: deploy
+
+
+docker-image:
+	docker build -t astjerna/sso-legacy .
+
+docker-run:
+	docker run --volume $(shell pwd):/home/work --rm -it astjerna/sso-legacy python -m pytest
+
+docker-shell:
+	docker run --volume $(shell pwd):/home/work --rm -it astjerna/sso-legacy bash