Deploy a Streamlit app on Google App Engine

To deploy a Streamlit app on Google App Engine, you will need to create a new App Engine application and install the google-cloud-storage and google-cloud-functions Python libraries. You can do this by running the following commands:

pip install google-cloud-storage
pip install google-cloud-functions

Next, you will need to create a app.yaml file that specifies the runtime and other configuration details for your application. This file should include the following content:

runtime: python
env: flex
entrypoint: gunicorn -b :$PORT main:app

runtime_config:
  python_version: 3

manual_scaling:
  instances: 1

resources:
  cpu: 1
  memory_gb: 0.5
  disk_size_gb: 10

This configuration specifies that the application should use Python 3 and run using the gunicorn web server, with one instance and the specified CPU and memory resources.

Next, you can create a Dockerfile that defines the steps to build a Docker image for your app. This file should include the following content:

FROM python:3.8

RUN pip install streamlit

COPY . /app
WORKDIR /app

CMD streamlit run app.py

This Dockerfile will install the streamlit library and copy your app code into the image, and set the entrypoint to the streamlit command to run the app.

Finally, you can use the following commands to build the Docker image and deploy it to App Engine:

gcloud builds submit --tag gcr.io/<YOUR_PROJECT_ID>/<IMAGE_NAME>
gcloud app deploy

This will build the Docker image using the Dockerfile and push it to the Google Container Registry, and then deploy it to App Engine. You can find more information about these steps in the App Engine documentation.

Keep in mind that this is just a simple example, and there are many other options and settings that you can use to customize the deployment process. You can find more information about these options in the App Engine documentation and online resources.