Modified tests to include dhparams

test/requirements/Dockerfile-nginx-proxy-tester

@@ -1,5 +1,10 @@
-FROM python:2.7
+FROM python:2.7-alpine
+
+# Note: we're using alpine because it has openssl 1.0.2, which we need for testing
+RUN apk add --update bash openssl curl && rm -rf /var/cache/apk/*
+
 COPY python-requirements.txt /requirements.txt
 RUN pip install -r /requirements.txt
+
 WORKDIR /test
 ENTRYPOINT ["pytest"]