def wrapper(*args, **kwargs):
try:
return fn(*args, **kwargs)
except exception.NotAuthenticated:
LOG.info(_("Request new AUTH token and retry."))
api.request_admin_token(search_cache=False)
return fn(*args, **kwargs)
def get_item(self, data_key, used_key, level=models.PLATFORM_LEVEL, need_capacity=True, az_name=None):
"""
calculate usage for specify resource such as memory.
:param data_key: key in usages for usage data list.
:param used_key: key in each usage data for used calculating.
:param token: admin auth token.
:param level: calculating level(models.PLATFORM/HOST/AZ/USER_LEVEL)
result[{data_key}] should look like:
{"memory_mb": {"memory_mb": [
{
"project_id": "xx1",
"instance_id": "uuid1",
"host": "host1",
"memory_mb": 128
},
{
"project_id": "xx2",
"instance_id": "uuid2",
"host": "host2",
"memory_mb": 256
},
]
},
"capacity": 10240}
:return : sample as:
{
'memory_mb': {
'platform': [
{
'instance_id': 'uuid1',
'memory_mb': 128,
'host': 'host1',
'project_id': 'xx1'
},
{
'instance_id': 'uuid2',
'memory_mb': 256,
'host': 'host2',
'project_id': 'xx2'
}
],
'platform_used': 384
}
}
"""
token = api.request_admin_token()
if self.usage is None:
try:
result = api.get_usages(token["tenant"]["id"], token["id"])
except KeyError:
LOG.exception(_("get usage failed."))
raise exc.HTTPFailedDependency(_("Nova or Keystone verstion not match."))
self.usage = result
else:
result = self.usage
try:
item_usage = calc_item(result[data_key][data_key], level, used_key)
zone_usage = {}
if level == models.AZ_LEVEL and az_name != None:
for i in range(len(item_usage)):
az_key = item_usage.keys()[i]
# filter usage info by az_name
if az_key == az_name:
zone_usage.update({az_key: item_usage.get(az_key)})
elif az_key == "%s_used" % az_name:
zone_usage.update({az_key: item_usage.get(az_key)})
item_usage = {}
item_usage.update(zone_usage)
else:
zone_usage.update(item_usage)
if not need_capacity:
return item_usage
# calculate platform capacity and remainder.
item_capacity = result[data_key]["capacity"]
if level == models.PLATFORM_LEVEL:
# calculate remainder resource for platform level
calc_resource_remainder(item_usage, item_capacity, None)
item_usage.update({"platform_capacity": item_capacity})
if level == models.AZ_LEVEL:
zones = api.get_hosts_az(token["tenant"]["id"], token["id"])
zones = zones["availability_zones"]
host_capacities = api.get_hosts_capacity(token["tenant"]["id"], token["id"])
mapped_key = {
"ecus": "ecus",
"local_gb": "disk_gb",
"memory_mb": "memory_mb",
"public_qos": "public_network_qos_mbps",
"private_qos": "private_network_qos_mbps",
}
for i in range(len(item_usage)):
az = item_usage.keys()[i]
if "_used" in az:
continue
capacity = 0
for zone in zones:
if zone["zoneName"] == az:
hosts = zone["hosts"]
for host in hosts:
host_capacity = host_capacities[host].get(mapped_key[data_key], 0)
capacity += host_capacity
zone_usage.update({"%s_capacity" % az: capacity})
calc_resource_remainder(zone_usage, capacity, None, unit=az)
# AZ item_usage data structure sample as
# {
# u'nova_capacity': 1000,
# u'nova': [
# {
# u'instance_id': u'71c5ab41-b8e7-4d40-8439',
# u'host': u'10-120-240-46',
# u'project_id': u'dc32392af0ae4a098fb7235760077f',
# u'type': u'public'
# },
# {
# u'instance_id': u'0f6c6354-3d92-45a5-8221',
# u'host': u'10-120-240-46',
# u'project_id': u'dc32392af0ae4a098fb7235760077',
# u'type': u'public'
# }
# ],
# u'nova_used': 0
# }
item_usage = {}
item_usage.update(zone_usage)
return item_usage
except KeyError:
LOG.exception(_("Calculate %s usage failed.") % data_key)
raise exception.ServiceUnavailable(_("Nova version not match."))
def calc_item(items, level, key):
"""
:param items: A list of all items, samples as:
[
{
"tenant_id": "xx1",
"instance_id": "uuid1",
"host": "host1",
"{key}": 10
},
{
"tenant_id": "xx2",
"instance_id": "uuid2",
"host": "host2",
"{key}": 5
}
]
:param level: specify which level to calcute usage
:param key: specify which key is to be used as usage
return sample as:
{u'10-120-240-46': [
{u'instance_id': u'71c5ab41-b8e7',
u'host': u'10-120-240-46',
u'project_id': u'dc32392af0ae4a098fb7235760077fa6',
u'local_gb': 10},
{u'instance_id': u'0f6c6354-3d92-45a5',
u'host': u'10-120-240-46',
u'project_id': u'dc32392af0ae4a098fb7235760077fa6',
u'local_gb': 10}],
u'10-120-240-46_used': 20}
"""
item_classify = {}
zones = None
if level == models.AZ_LEVEL:
token = api.request_admin_token()
all_az = api.get_hosts_az(token["tenant"]["id"], token["id"])
try:
zones = all_az["availability_zones"]
except:
LOG.exception(_("Get AZ information error."))
raise
for item in items:
# NOTE(hzzhoushaoyu): item sample as:
# {u'instance_id': u'0f6c6354-3d92-45a5-8221-aa0035c07f43',
# u'host': u'10-120-240-46', u'local_gb': 10,
# u'project_id': u'dc32392af0ae4a098fb7235760077fa6'}
if not item:
continue
if level == models.PLATFORM_LEVEL:
classify_item(item, item_classify, "platform")
elif level == models.HOST_LEVEL:
host = _get_item_host(item)
if host is None:
continue
classify_item(item, item_classify, host)
elif level == models.AZ_LEVEL:
for zone in zones:
if "hosts" not in zone:
LOG.warn(_("Zone information does not contain hosts."))
hosts = zone.get("hosts", [])
host = _get_item_host(item)
if host in hosts:
classify_item(item, item_classify, zone["zoneName"])
elif level == models.USER_LEVEL:
classify_item(item, item_classify, item["project_id"])
if len(items) == 0 and level == models.PLATFORM_LEVEL:
item_classify = {"platform": []}
analysis_item_used(item_classify, key)
return item_classify
