"""

A sample Hello World server.

"""

import os

from flask import Flask, render_template

# pylint: disable=C0103

app = Flask(__name__)

@app.route('/')

def hello():

"""Return a friendly HTTP greeting."""

message = "It's running!"

"""Get Cloud Run environment variables."""

service = os.environ.get('K_SERVICE', 'Unknown service')

revision = os.environ.get('K_REVISION', 'Unknown revision')

return render_template('index.html',

message=message,

Service=service,

Revision=revision)

if __name__ == '__main__':

server_port = os.environ.get('PORT', '8080')

app.run(debug=False, port=server_port, host='0.0.0.0')