def get_az_capacity(self, req, tenant_id, az_name):
"""
get capacity for some az
"""
az_capacity = {}
auth_token = req.headers.get("x-auth-token")
hosts_capacity = ops_api.get_hosts_capacity(tenant_id, auth_token)
zones = ops_api.get_hosts_az(tenant_id, auth_token)
if "availability_zones" not in zones:
LOG.warn("availability_zones does not exists in zones(%s)" % zones)
zones = zones.get("availability_zones", [])
az_hosts = []
for zone in zones:
if az_name == zone["zoneName"]:
az_hosts = zone["hosts"]
break
for hostname in hosts_capacity.keys():
if hostname in az_hosts:
host_capacity = hosts_capacity.get(hostname, {})
if not az_capacity:
az_capacity.update(host_capacity)
else:
for item in az_capacity.keys():
az_capacity[item] += host_capacity.get(item, 0)
return az_capacity
def show_by_host(self, req, tenant_id):
"""
list platform usage
"""
def get_zone_by_host(zones, host):
for zone in zones:
if host in zone["hosts"]:
return zone["zoneName"]
auth_token = req.headers.get("x-auth-token")
m = manager.Manager()
usages = m.request_usages(models.HOST_LEVEL)
hosts_capacity = ops_api.get_hosts_capacity(tenant_id, auth_token)
zones = ops_api.get_hosts_az(tenant_id, auth_token)
if "availability_zones" not in zones:
LOG.warn("availability_zones does not exists in zones(%s)" % zones)
zones = zones.get("availability_zones", [])
for v in usages:
# NOTE(hzzhoushaoyu): usages is a iterative value and here is only
# one item.
items = self._construct_usage(v)
result = []
for hostname in items:
value = items[hostname]
value.update(hostname=hostname)
value.update(hosts_capacity.get(hostname, {}))
zone_name = get_zone_by_host(zones, hostname)
value.update(availability_zone=zone_name)
# FIXME : This is a little ugly. when instances in the host
# doesn't use any floating ip, we need to set the
# ips_used number to 0. Currently I can't find a much
# proper place to do this thing.
if "private_ips_used" not in value.keys():
value.update(private_ips_used=0)
if "public_ips_used" not in value.keys():
value.update(public_ips_used=0)
result.append(value)
# Add statistics for hosts with no vms.
for hostname in hosts_capacity.keys():
already_counted = False
for value in result:
if value["hostname"] == hostname:
already_counted = True
break
if not already_counted:
value = {}
value.update(hostname=hostname)
value.update(hosts_capacity.get(hostname, {}))
value.update(private_ips_used=0)
value.update(public_ips_used=0)
zone_name = get_zone_by_host(zones, hostname)
value.update(availability_zone=zone_name)
result.append(value)
result = list_filter.filter_host_usages(req, result)
result = list_sort.sort_host_usage(req, result)
return dict(hosts=result)
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."))
