def __init__(self, ipAddr, port, verbose):
'''
Constructor: takes IP address and port of the ViPR instance. These are
needed to make http requests for REST API
'''
self.__ipAddr = ipAddr
self.__port = port
self._host = Host(self.__ipAddr, self.__port)
self._hostinitiator = HostInitiator(self.__ipAddr, self.__port)
self._network = Network(self.__ipAddr, self.__port)
self._execute = utils.execute
self._vipr_info = ViPRInfo(self.VIPR_CONFIG_FILE)
self.set_logging(verbose)
class Openstack(object):
'''
The class definition for operations related to 'Openstack'.
'''
#Commonly used URIs for the 'Openstack' module
URI_HOST_SEARCH = '/compute/hosts/search?name={0}'
URI_HOST_BULK = '/compute/hosts/bulk'
URI_NETWORK_BULK = '/vdc/networks/bulk'
URI_NETWORK_PORTS = '/vdc/networks/{0}/storage-ports'
URI_STORAGEPORT_ALL = '/vdc/storage-ports'
URI_STORAGEPORT_BULK = '/vdc/storage-ports/bulk'
VIPR_CONFIG_FILE = '/etc/cinder/cinder.conf'
def __init__(self, ipAddr, port, verbose):
'''
Constructor: takes IP address and port of the ViPR instance. These are
needed to make http requests for REST API
'''
self.__ipAddr = ipAddr
self.__port = port
self._host = Host(self.__ipAddr, self.__port)
self._hostinitiator = HostInitiator(self.__ipAddr, self.__port)
self._network = Network(self.__ipAddr, self.__port)
self._execute = utils.execute
self._vipr_info = ViPRInfo(self.VIPR_CONFIG_FILE)
self.set_logging(verbose)
def set_logging(self, verbose):
self._logger = logging.getLogger(__name__)
if (verbose):
self._logger.setLevel(logging.DEBUG)
else:
self._logger.setLevel(logging.INFO)
logging.basicConfig(format='%(asctime)s:%(levelname)s: %(message)s')
def get_logger(self):
return self._logger
def get_hostname(self, hostname = None):
if (not hostname):
return socket.getfqdn()
else:
return hostname
def get_vipr_info(self):
return self._vipr_info
#@retry_wrapper
def add_host(self, host_param, connector, vipr_param):
self._vipr_info.authenticate_user()
varray = vipr_param['varray']
# Find or create host.
host = self.create_host(host_param['hostname'], vipr_param['tenant'], vipr_param['project'])
self._logger.info('Created/found host %s', host['name'])
self._logger.debug('Details of host %s: %s', host_param['hostname'], host)
# Find or create initiator.
initiator = self.create_initiator(host, connector)
self._logger.info('Added initiator %s to host %s', initiator['initiator_port'], host['name'])
self._logger.debug('Details of initiator %s', initiator)
# Find network
network = self.find_iscsi_network(vipr_param['varray'], vipr_param['network'])
if (network):
self._logger.info('Found network %s in virtual array %s', network['name'], varray)
else:
self._logger('Cannot find a network in virtual array %s to place the initiator', varray)
exit(1)
# add initiator to network
if (initiator['initiator_port'] not in network['endpoints']):
self.add_initiator_to_network(host, initiator, network, vipr_param['varray'])
self._logger.info('Added initiator %s to network %s', initiator['initiator_port'], network['name'])
self._logger.debug('Network details %s: ', network)
@vipr_retry_wrapper
def create_host(self, hostname, tenant, project, ostype='Linux'):
# find host
host = self.find_host(hostname)
if (not host):
if (not ostype) :
ostype = "Linux"
# host not found, create a new one.
task_rep = self._host.create(hostname, ostype, hostname, tenant, None, None, None, None, None, None, None, None, None)
host = common.show_by_href(self.__ipAddr, self.__port, task_rep['resource'])
return host
'''
Find host by name of host object in ViPR, normally the hostname of the host.
Parameters:
name: name of the host
Returns:
host details in JSON
'''
def find_host(self, hostname):
shortname = hostname[:hostname.find(".")]
(s, h) = common.service_json_request(self.__ipAddr, self.__port,
"GET",
self.URI_HOST_SEARCH.format(shortname),
None)
o = common.json_decode(s);
ids = []
for host in o['resource'] :
ids.append(host['id'])
body = json.dumps({'id' : ids})
(s, h) = common.service_json_request(self.__ipAddr, self.__port,
"POST",
self.URI_HOST_BULK,
body)
o = common.json_decode(s)
for host in o['host']:
if (host['inactive']):
continue
if (hostname in host['host_name'] or host['host_name'] in hostname ):
return host
def get_localhost_initiator(self, protocol='iSCSI'):
if (protocol == 'iSCSI'):
wwpn = libvirt_utils.get_iscsi_initiator()
initiator = {'wwpn' : wwpn}
return initiator
def find_initiator(self, host, wwpn):
initiators = self._host.list_initiators(host)
for initiator in initiators:
if (initiator['name'] == wwpn):
return initiator
return None
def create_initiator(self, host, connector):
initiator = self.find_initiator(host['name'], connector['wwpn'])
if (not initiator):
initiator = self._hostinitiator.create(host['name'], 'iSCSI', None, connector['wwpn'])
return common.show_by_href(self.__ipAddr, self.__port, initiator)
'''
Find network for a given network name. If network name is not specified
'''
def find_iscsi_network(self, varray, network_name):
if (network_name):
try:
return self._network.network_query(network_name, varray)
except SOSError:
# TODO: re-raise the exception with correct name. To be removed
raise SOSError(SOSError.NOT_FOUND_ERR, "Network {0} not found".format(network_name))
storage_ports = self.get_varray_iscsi_storageports(varray)
for port in storage_ports:
port_info = dict()
port_info['native_guid'] = port['native_guid']
port_info['port_name'] = port['port_name']
try:
ip_address = port['ip_address']
port_info['ip_address'] = ip_address
if (self.is_ip_pingable(ip_address)):
network = port['network']
network_detail = common.show_by_href(self.__ipAddr, self.__port, network)
port_info['network'] = network_detail['name']
self._logger.debug('Select storage port %s: ', port_info)
return network_detail
else:
self._logger.debug('Skip storage port %s: ', port_info)
except KeyError:
self._logger.debug('Skip storage port %s: ', port_info)
continue
def is_ip_pingable(self, ip_address):
self._logger.debug('ping ip address %s ', ip_address)
try:
(out, err) = self._execute('ping', '-c', '2', ip_address)
self._logger.debug(out)
return True
except Exception as ex:
return False
def get_ip_networks(self, varray):
networks = self._network.list_networks(varray)
ip_networks = []
resources = self.get_bulk_details(networks, self.URI_NETWORK_BULK)
for x in resources['network']:
if (x['transport_type'] == 'IP'):
ip_networks.append(x)
return ip_networks
def get_bulk_details(self, resources, bulkuri):
ids = []
for each in resources :
ids.append(each['id'])
body = json.dumps({'id' : ids})
(s, h) = common.service_json_request(self.__ipAddr, self.__port,
"POST",
bulkuri,
body)
return common.json_decode(s)
'''
Attach host initiators to a network
Parameters:
name: name of the host
network: name of the network to be attached
Return:
network details in JSON
'''
def add_initiator_to_network(self, host, initiator, network, varray):
if (network['transport_type'] == 'IP' and initiator['protocol'] == 'iSCSI'):
return self._network.add_endpoint(varray, network['name'], initiator['initiator_port'])
def get_varray_iscsi_storageports(self, varray):
iscsi_ports = []
for port in self.get_varray_storageports(varray):
if (port['transport_type'] != 'IP'):
continue
if ('iqn' not in port['port_network_id']):
continue
if ('Not Available' in port['ip_address'] ):
continue
iscsi_ports.append(port)
return iscsi_ports
"""
Get all storage ports
Returns:
Storage ports in JSON
"""
def get_varray_storageports(self, varray):
networks = self._network.list_networks(varray)
ids = []
for net in networks:
net_id = net['id']
(s, h) = common.service_json_request(self.__ipAddr, self.__port,
"GET",
self.URI_NETWORK_PORTS.format(net_id) , None)
o = common.json_decode(s)
for port in o['storage_port']:
ids.append(port['id'])
body = json.dumps({'id' : ids})
(s, h) = common.service_json_request(self.__ipAddr, self.__port,
"POST",
self.URI_STORAGEPORT_BULK,
body)
o = common.json_decode(s)
return o['storage_port']
def log_info(self, message):
import datetime
timestamp = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
sys.stdout.write(timestamp + ': ' + message + '\n')