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import collections
import os
import sys
import yaml
try:
from libcloud.compute.types import Provider
from libcloud.compute.providers import get_driver
_ = Provider.GCE
except ImportError:
print("failed=True " + \
"msg='libcloud with GCE support (0.13.3+) required for this module'")
sys.exit(1)
def add_credentials_options(parser):
default_service_account_email = None
default_pem_file = None
default_project_id = None
# Load details from credentials.yml
if os.path.isfile('credentials.yml'):
credentials = yaml.load(open('credentials.yml', 'r'))
default_service_account_email = credentials[
'gce_service_account_email']
default_pem_file = credentials['gce_pem_file']
default_project_id = credentials['gce_project_id']
parser.add_option(
"--service_account_email", action="store",
dest="service_account_email", default=default_service_account_email,
help="GCE service account email. Default is loaded from credentials.yml.")
parser.add_option(
"--pem_file", action="store", dest="pem_file",
default=default_pem_file,
help="GCE client key. Default is loaded from credentials.yml.")
parser.add_option(
"--project_id", action="store", dest="project_id",
default=default_project_id,
help="Google Cloud project ID. Default is loaded from credentials.yml.")
def check_required(opts, parser):
for required in ['service_account_email', 'pem_file', 'project_id']:
if getattr(opts, required) is None:
parser.error("Missing required parameter: --%s" % required)
def get_gce_driver(opts):
# Connect to GCE
gce_cls = get_driver(Provider.GCE)
return gce_cls(opts.service_account_email, opts.pem_file,
project=opts.project_id)
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