A Dockerfile to create a CircleCI base image

spec/test/Dockerfile

@@ -0,0 +1,16 @@
+FROM python:3.7-alpine
+
+# Install CircleCI requirements for base images
+#   https://circleci.com/docs/2.0/custom-images/
+RUN apk upgrade --update-cache \
+ && apk add git openssh-server tar gzip ca-certificates
+
+# Install Kapow! Spec Test Suite
+RUN mkdir -p /usr/src/ksts
+WORKDIR /usr/src/ksts
+COPY features /usr/src/ksts/features
+COPY Pipfile Pipfile.lock /usr/src/ksts/
+RUN pip install --upgrade pip \
+ && pip install pipenv \
+ && pipenv install --deploy --system \
+ && rm -f Pipfile Pipfile.lock