deploy.py

import os
from fabric.operations import run
from fabric.state import env

#Host name and usernme for ssh
env.host_string = '54.186.247.5:22'
env.user = 'ubuntu'

#if you're doing this through commandline, must do KEY_LOCATION=$(pwd)/newkey.pem
try:
    env.key_filename = os.environ['KEY_NAME']
except KeyError:
    print 'You must set KEY_NAME to be the path to private key file.'
    exit(1)

#get into the right directory and pull the files
run("cd ~/repo && git pull")

#activate virtual environment
run(". ~/Virtualenvs/flaskenv/bin/activate && "
    "pip install -r ~/repo/requirements.txt")


run("gunicorn_running=`ps -ef | grep gunicorn | grep -v grep | wc -l` && "
    "if [ $gunicorn_running -eq 0 ]; then sudo start gunicorn; else sudo restart gunicorn; fi")


run('. ~/Virtualenvs/flaskenv/bin/activate && '
    'cd ~/repo && '
    'SQL_ALCHEMY_CONN_STRING=postgres://postgres:postgres@localhost:5432/flask '
    'PYTHONPATH=. alembic upgrade head')



#todo: missing migration