follow guide to deploy on gcloud

Dockerfile

@@ -0,0 +1,16 @@
+FROM python:3.7.8-slim
+
+# remember to expose the port your app'll be exposed on.
+EXPOSE 8080
+
+RUN pip install -U pip
+
+COPY requirements.txt app/requirements.txt
+RUN pip install -r app/requirements.txt
+
+# copy into a directory of its own (so it isn't in the toplevel dir)
+COPY . /app
+WORKDIR /app
+
+# run it!
+ENTRYPOINT ["streamlit", "run", "app.py", "--server.port=8080", "--server.address=0.0.0.0"]