textbook/Flask on CF.md

## Flask on CF.md

      
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              Flask on CF.md
            
          
    Simple Python Flask app on Cloud Foundry

This is a (very) simple Flask application that shows how the built-in Python buildpack detection on Cloud Foundry works.
To push to Cloud Foundry, log in and then use
$ cf push myapp-name

Python on Cloud Foundry

Cloud Foundry: http://cloudfoundry.org

Python is a first class language
Deploy with cf push myapp
Scale with cf scale myapp ...

You can try Cloud Foundry by signing up for a free trial at Pivotal Web Services.

  
## hello.py
"""Cloud Foundry test"""
from flask import Flask
import os

app = Flask(__name__)

port = int(os.getenv("PORT"))

@app.route('/')
def hello_world():
    return 'Hello World! I am running on port ' + str(port)

if __name__ == '__main__':
    app.run(host='0.0.0.0', port=port)

## Procfile
web: python hello.py

## requirements.txt
Flask
	"""Cloud Foundry test"""
	from flask import Flask
	import os

	app = Flask(__name__)

	port = int(os.getenv("PORT"))

	@app.route('/')
	def hello_world():
	return 'Hello World! I am running on port ' + str(port)

	if __name__ == '__main__':
	app.run(host='0.0.0.0', port=port)