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import logging
import os
import time
from tackerclient.tacker import client as tackerclient
from functest.utils import openstack_utils as os_utils
logger = logging.getLogger(__name__)
DEFAULT_TACKER_API_VERSION = '1.0'
def get_tacker_client_version():
api_version = os.getenv('OS_TACKER_API_VERSION')
if api_version is not None:
logger.info("OS_TACKER_API_VERSION is set in env as '%s'", api_version)
return api_version
return DEFAULT_TACKER_API_VERSION
def get_tacker_client(other_creds={}):
sess = os_utils.get_session(other_creds)
return tackerclient.Client(get_tacker_client_version(), session=sess)
def get_id_from_name(tacker_client, resource_type, resource_name):
try:
req_params = {'fields': 'id', 'name': resource_name}
endpoint = '/{0}s'.format(resource_type)
resp = tacker_client.get(endpoint, params=req_params)
endpoint = endpoint.replace('-', '_')
return resp[endpoint[1:]][0]['id']
except Exception, e:
logger.error("Error [get_id_from_name(tacker_client, "
"resource_type, resource_name)]: %s" % e)
return None
def get_vnfd_id(tacker_client, vnfd_name):
return get_id_from_name(tacker_client, 'vnfd', vnfd_name)
def get_vnf_id(tacker_client, vnf_name, timeout=5):
vnf_id = None
while vnf_id is None and timeout >= 0:
vnf_id = get_id_from_name(tacker_client, 'vnf', vnf_name)
if vnf_id is None:
logger.info("Could not retrieve ID for vnf with name [%s]."
" Retrying." % vnf_name)
time.sleep(1)
timeout -= 1
return vnf_id
def list_vnfds(tacker_client, verbose=False):
try:
vnfds = tacker_client.list_vnfds(retrieve_all=True)
if not verbose:
vnfds = [vnfd['id'] for vnfd in vnfds['vnfds']]
return vnfds
except Exception, e:
logger.error("Error [list_vnfds(tacker_client)]: %s" % e)
return None
def create_vnfd(tacker_client, tosca_file=None):
try:
vnfd_body = {}
if tosca_file is not None:
with open(tosca_file) as tosca_fd:
vnfd_body = tosca_fd.read()
logger.info('VNFD template:\n{0}'.format(vnfd_body))
return tacker_client.create_vnfd(
body={"vnfd": {"attributes": {"vnfd": vnfd_body}}})
except Exception, e:
logger.error("Error [create_vnfd(tacker_client, '%s')]: %s"
% (tosca_file, e))
return None
def delete_vnfd(tacker_client, vnfd_id=None, vnfd_name=None):
try:
vnfd = vnfd_id
if vnfd is None:
if vnfd_name is None:
raise Exception('You need to provide VNFD id or VNFD name')
vnfd = get_vnfd_id(tacker_client, vnfd_name)
return tacker_client.delete_vnfd(vnfd)
except Exception, e:
logger.error("Error [delete_vnfd(tacker_client, '%s', '%s')]: %s"
% (vnfd_id, vnfd_name, e))
return None
def list_vnfs(tacker_client, verbose=False):
try:
vnfs = tacker_client.list_vnfs(retrieve_all=True)
if not verbose:
vnfs = [vnf['id'] for vnf in vnfs['vnfs']]
return vnfs
except Exception, e:
logger.error("Error [list_vnfs(tacker_client)]: %s" % e)
return None
def create_vnf(tacker_client, vnf_name, vnfd_id=None,
vnfd_name=None, param_file=None):
try:
vnf_body = {
'vnf': {
'attributes': {},
'name': vnf_name
}
}
if param_file is not None:
params = None
with open(param_file) as f:
params = f.read()
vnf_body['vnf']['attributes']['param_values'] = params
if vnfd_id is not None:
vnf_body['vnf']['vnfd_id'] = vnfd_id
else:
if vnfd_name is None:
raise Exception('vnfd id or vnfd name is required')
vnf_body['vnf']['vnfd_id'] = get_vnfd_id(tacker_client, vnfd_name)
return tacker_client.create_vnf(body=vnf_body)
except Exception, e:
logger.error("error [create_vnf(tacker_client,"
" '%s', '%s', '%s')]: %s"
% (vnf_name, vnfd_id, vnfd_name, e))
return None
def get_vnf(tacker_client, vnf_id=None, vnf_name=None):
try:
if vnf_id is None and vnf_name is None:
raise Exception('You must specify vnf_id or vnf_name')
_id = get_vnf_id(tacker_client, vnf_name) if vnf_id is None else vnf_id
if _id is not None:
all_vnfs = list_vnfs(tacker_client, verbose=True)['vnfs']
return next((vnf for vnf in all_vnfs if vnf['id'] == _id), None)
else:
raise Exception('Could not retrieve ID from name [%s]' % vnf_name)
except Exception, e:
logger.error("Could not retrieve VNF [vnf_id=%s, vnf_name=%s] - %s"
% (vnf_id, vnf_name, e))
return None
def wait_for_vnf(tacker_client, vnf_id=None, vnf_name=None, timeout=60):
try:
vnf = get_vnf(tacker_client, vnf_id, vnf_name)
if vnf is None:
raise Exception("Could not retrieve VNF - id='%s', name='%s'"
% vnf_id, vnf_name)
logger.info('Waiting for vnf {0}'.format(str(vnf)))
while vnf['status'] != 'ACTIVE' and timeout >= 0:
if vnf['status'] == 'ERROR':
raise Exception('Error when booting vnf %s' % vnf['id'])
elif vnf['status'] == 'PENDING_CREATE':
time.sleep(3)
timeout -= 3
vnf = get_vnf(tacker_client, vnf_id, vnf_name)
if (timeout < 0):
raise Exception('Timeout when booting vnf %s' % vnf['id'])
return vnf['id']
except Exception, e:
logger.error("error [wait_for_vnf(tacker_client, '%s', '%s')]: %s"
% (vnf_id, vnf_name, e))
return None
def delete_vnf(tacker_client, vnf_id=None, vnf_name=None):
try:
vnf = vnf_id
if vnf is None:
if vnf_name is None:
raise Exception('You need to provide a VNF id or name')
vnf = get_vnf_id(tacker_client, vnf_name)
return tacker_client.delete_vnf(vnf)
except Exception, e:
logger.error("Error [delete_vnf(tacker_client, '%s', '%s')]: %s"
% (vnf_id, vnf_name, e))
return None
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