Stopping an Instance in OpenStack

shutoff.py

#!/usr/bin/python
"""
Demo to showdown an instance
"""

import time

from keystoneauth1 import session
from keystoneauth1.identity import v3
from novaclient import client as compute_client


def main():
    """
    Get an instance by ID and shut it down
    """

    # Setup my credentials ...
    auth = v3.Password(auth_url='https://compute.datacentred.io:5000/v3',
                       username='USERNAME',
                       password='PASSWORD',
                       user_domain_name='default',
                       project_name='PROJECT',
                       project_domain_name='default')

    # ... associate them with a session ...
    password_session = session.Session(auth=auth)

    # ... and create a client
    compute = compute_client.Client(2, session=password_session)

    # From the severs collection grab the server by ID ...
    server = compute.servers.get('be2b932b-6388-43f4-af08-f0ff30519be3')

    # ... and stop the resource
    server.stop()

    # You can even poll for when the operation has completed ...
    while True:
        temp = compute.servers.get(server.id)
        if temp.status == 'SHUTOFF':
            break
        time.sleep(5)


if __name__ == '__main__':
    main()

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