For general-purpose Custom Deployment instructions, click here
Once you have your HTML dashboard from Bokeh you can write a Flask server in the project directory to serve it as a Custom Deployment.
os.system('python3 -m pip install flask')
from flask import Flask
app = Flask(__name__,static_url_path='/static')
if __name__ == '__main__':
After that create a Custom Deployment from your image:
Once it is running you can check the logs and the URL to see that it is working.