ericschles / developer-unicorns-february-twenty-fourth Goto Github PK

#Building Web Apps Fast ##Flask,Heroku, Syncano

###Heroku

Setting up Heroku:

#####Installin' Stuf'

• Get a free account
• Download the toolbelt
• heroku login - only required the first time you create a heroku app for verification purposes

#####Figurin' to Configure some things

• create a requirements.txt file --> pip freeze > requirements.txt

  • Unless you are on ubuntu. Then run this pruner after you do pip freeze > requirements.txt
  • Or make sure you set up a virtualenv and use the pip within your virtualenv

• create a Procfile

  • For most simple web apps you'll only need: web: gunicorn app:app
    • in general Procfile's have the following form: <process type> : <command>, for more info check this out
  • For more advance web apps check out the foreman reference and an interesting example with web sockets
  • concurrency with foreman:

    • Procfile: ``` web: gunicorn web:web

        worker: python scraper.py
      ``` 
      

    • terminal command: foreman start -c web=1, worker=2

• create a runtime.txt file

  • file contents: python-2.7.6
  • There is a known bug with gevent and python-2.7.9 that breaks ssl.

#####Terminal time

• push your project up to git:

  • git init
  • git add -A
  • git commit -a -m "first commit"
  • git remote add origin [email protected]:[user-name]/[repo name].git
  • git push -u origin master

• push your project to heroku:

  • git push heroku master
  • heroku ps:scale web=1
  • heroku open

###Syncano

• setting environment variables - locally

  • Ubuntu - edit .bashrc (you can get there by typing cd ~)
  • set instance name: export SYNCANO_INSTANCE_NAME=[instance name] AND export PATH="$SYNCANO_INSTANCE_NAME:$PATH" to the end of the file.
  • set api key: export SYNCANO_API_KEY=[api key] AND export PATH="$SYNCANO_API_KEY:$PATH" to the end of the file.

• setting environment variables - on heroku:

  • heroku config:set SYNCANO_INSTANCE_NAME=[instance name]
  • herok config:set SYNCANO_API_KEY=[api key]

###Flask