def get_subnet_create_options(network_id,
ip_version=4,
gateway='',
cidr=None,
mask_bits=None,
num_subnet=1,
gateway_offset=1,
cidr_offset=0,
**kwargs):
"""When cidr_offset>0 it request only one subnet-options:
subnet = get_subnet_create_options('abcdefg', 4, num_subnet=4)[3]
subnet = get_subnet_create_options('abcdefg', 4, cidr_offset=3)
"""
gateway_not_set = (gateway == '')
if ip_version == 4:
cidr = cidr or netaddr.IPNetwork(CONF.network.project_network_cidr)
mask_bits = mask_bits or CONF.network.project_network_mask_bits
elif ip_version == 6:
cidr = (cidr
or netaddr.IPNetwork(CONF.network.project_network_v6_cidr))
mask_bits = mask_bits or CONF.network.project_network_v6_mask_bits
# Find a cidr that is not in use yet and create a subnet with it
subnet_list = []
if cidr_offset > 0:
num_subnet = cidr_offset + 1
for subnet_cidr in cidr.subnet(mask_bits):
if gateway_not_set:
gateway_ip = gateway or (
str(netaddr.IPAddress(subnet_cidr) + gateway_offset))
else:
gateway_ip = gateway
try:
subnet_body = dict(network_id=network_id,
cidr=str(subnet_cidr),
ip_version=ip_version,
gateway_ip=gateway_ip,
**kwargs)
if num_subnet <= 1:
return subnet_body
subnet_list.append(subnet_body)
if len(subnet_list) >= num_subnet:
if cidr_offset > 0:
# user request the 'cidr_offset'th of cidr
return subnet_list[cidr_offset]
# user request list of cidr
return subnet_list
except exceptions.BadRequest as e:
is_overlapping_cidr = 'overlaps with another subnet' in str(e)
if not is_overlapping_cidr:
raise
else:
message = 'Available CIDR for subnet creation could not be found'
raise exceptions.BuildErrorException(message)
return {}
def wait_for_server_termination(self, server_id, ignore_error=False):
"""Waits for server to reach termination."""
build_interval = CONF.compute.build_interval
while True:
try:
rs_client = self._connect_server()
resp, body = rs_client.get("servers/%s" % str(server_id))
body = jsonutils.loads(body)
except lib_exc.NotFound:
return
server_status = body['server']['status']
if server_status == 'ERROR' and not ignore_error:
raise lib_exc.BuildErrorException(server_id=server_id)
time.sleep(build_interval)
def wait_for_server_status(self,
server_id,
status,
ready_wait=True,
extra_timeout=0,
raise_on_error=True):
"""Waits for a server to reach a given status."""
build_interval = CONF.compute.build_interval
build_timeout = CONF.compute.build_timeout
def _get_task_state(body):
return body.get('OS-EXT-STS:task_state', None)
rs_client = self._connect_server()
resp, body = rs_client.get("servers/%s" % str(server_id))
body = jsonutils.loads(body)
old_status = server_status = body['server']['status']
old_task_state = task_state = _get_task_state(body)
start_time = int(time.time())
timeout = build_timeout + extra_timeout
while True:
if status == 'BUILD' and server_status != 'UNKNOWN':
return
if server_status == status:
if ready_wait:
if status == 'BUILD':
return
if str(task_state) == "None":
time.sleep(CONF.compute.ready_wait)
return
else:
return
time.sleep(build_interval)
resp, body = rs_client.get("servers/%s" % str(server_id))
body = jsonutils.loads(body)
server_status = body['server']['status']
task_state = _get_task_state(body)
if (server_status != old_status) or (task_state != old_task_state):
oldstatus = '/'.join((old_status, str(old_task_state)))
serverstatus = '/'.join((server_status, str(task_state)))
waitsec = (time.time() - start_time)
LOG.info(
_LI('State transition %(oldstatus)s => %(serverstatus)s '
'after %(waitsec)d second wait') % {
'oldstatus': oldstatus,
'serverstatus': serverstatus,
'waitsec': waitsec
})
if (server_status == 'ERROR') and raise_on_error:
if 'fault' in body:
raise lib_exc.BuildErrorException(body['fault'],
server_id=server_id)
else:
raise lib_exc.BuildErrorException(server_id=server_id)
timed_out = int(time.time()) - start_time >= timeout
if timed_out:
expected_task_state = 'None' if ready_wait else 'n/a'
message = ('Server %(server_id)s failed to reach %(status)s '
'status and task state "%(expected_task_state)s" '
'within the required time (%(timeout)s s).' % {
'server_id': server_id,
'status': status,
'expected_task_state': expected_task_state,
'timeout': timeout
})
message += ' Current status: %s.' % server_status
message += ' Current task state: %s.' % task_state
caller = misc_utils.find_test_caller()
if caller:
message = '(%s) %s' % (caller, message)
raise lib_exc.TimeoutException(message)
old_status = server_status
old_task_state = task_state