Containerize application with Docker (#116)

* add dockerfile
* use latest tag instead of latest commit
* Added docker instructions
* define entrypoint
* specify to cd into directory after git clone
* include config flag

Dockerfile

@@ -0,0 +1,33 @@
+FROM node:latest AS CLIENT
+
+RUN git clone https://github.com/geoffrey45/swing-client.git client
+
+WORKDIR /client
+
+RUN git checkout $(git describe --tags $(git rev-list --tags --max-count=1))
+
+RUN yarn install
+
+RUN yarn build
+
+FROM python:latest
+
+WORKDIR /app/swingmusic
+
+COPY . .
+
+COPY --from=CLIENT /client/dist/ client
+
+EXPOSE 1970/tcp
+
+VOLUME /music
+
+VOLUME /config
+
+RUN pip install poetry
+
+RUN poetry config virtualenvs.create false
+
+RUN poetry install
+
+ENTRYPOINT ["poetry", "run", "python", "manage.py", "--host", "0.0.0.0", "--config", "/config"]