A utility script to test launching instances in OpenStack via apache libcloud

libcloud_cloudlab_test.py

# python libcloud_cloudlab_test.py <image-id> <flavor-id> <instance-name>
#
# python libcloud_cloudlab_test.py 91a3072b-c755-43e8-b8bc-b9cb62338ebf 2 lenardsagain

import os
import sys

from libcloud.compute.types import Provider
from libcloud.compute.providers import get_driver
import libcloud.security

if len(sys.argv) < 4:
    sys.exit("missing expected arguments")

libcloud.security.VERIFY_SSL_CERT = False

# source the admin-openrc shell script to set environment variables
auth_username = os.environ['OS_USERNAME']
auth_password = os.environ['OS_PASSWORD']
auth_url = os.environ['OS_AUTH_URL'] + '/tokens'
project_name = os.environ['OS_TENANT_NAME']


provider = get_driver(Provider.OPENSTACK)
conn = provider(auth_username,
                auth_password,
                ex_force_auth_url=auth_url,
                ex_force_auth_version='2.0_password',
                ex_tenant_name=project_name,
                ex_project_name=project_name)

# Get the image that we want to use by its id                                                                                                                
# NOTE: the image_id may change. See the documentation to find                                                                                               
# all the images available to your user                                                                                                                      
image_id = sys.argv[1]
image = conn.get_image(image_id)

# Get the flavor that we want to use by its id                                                                                                               
flavor_id = sys.argv[2]
flavor = conn.ex_get_size(flavor_id)

#specify networks.                                                                                                                                           
nets = filter(lambda net: net.name == 'flat-lan-1-net', conn.ex_list_networks())
network = [nets[0]]

instance = conn.create_node(name=sys.argv[3], image=image, size=flavor, networks=network)