Add dockerfile

Dockerfile

@@ -0,0 +1,15 @@
+FROM python:3-slim
+WORKDIR /code
+
+# Copy Pipfile related files
+COPY Pipfile.lock /code/
+COPY Pipfile /code/
+
+# Install dependencies
+RUN pip install pipenv && pipenv install --system --deploy
+
+# Default command to run app
+CMD gunicorn api.py -b 0.0.0.0:${PORT:-5000} -w 3
+
+# Copy codebase to docker image
+COPY . /code