def ping(self, context):
"""Ping should be called periodically to update zone status."""
diff = utils.utcnow() - self.last_zone_db_check
if diff.seconds >= FLAGS.zone_db_check_interval:
logging.debug(_("Updating zone cache from db."))
self.last_zone_db_check = utils.utcnow()
self._refresh_from_db(context)
self._poll_zones(context)
def ping(self, context):
"""Ping should be called periodically to update zone status."""
diff = utils.utcnow() - self.last_zone_db_check
if diff.seconds >= FLAGS.zone_db_check_interval:
logging.debug(_("Updating zone cache from db."))
self.last_zone_db_check = utils.utcnow()
self._refresh_from_db(context)
self._poll_zones(context)
def stub_instance(id, user_id='fake', project_id='fake', host=None,
vm_state=None, task_state=None,
reservation_id="", uuid=FAKE_UUID, image_ref="10",
flavor_id="1", name=None, key_name='',
access_ipv4=None, access_ipv6=None, progress=0):
if host is not None:
host = str(host)
if key_name:
key_data = 'FAKE'
else:
key_data = ''
# ReservationID isn't sent back, hack it in there.
server_name = name or "server%s" % id
if reservation_id != "":
server_name = "reservation_%s" % (reservation_id, )
instance = {
"id": int(id),
"created_at": datetime.datetime(2010, 10, 10, 12, 0, 0),
"updated_at": datetime.datetime(2010, 11, 11, 11, 0, 0),
"admin_pass": "",
"user_id": user_id,
"project_id": project_id,
"image_ref": image_ref,
"kernel_id": "",
"ramdisk_id": "",
"launch_index": 0,
"key_name": key_name,
"key_data": key_data,
"vm_state": vm_state or vm_states.BUILDING,
"task_state": task_state,
"memory_mb": 0,
"vcpus": 0,
"local_gb": 0,
"hostname": "",
"host": host,
"instance_type": {},
"user_data": "",
"reservation_id": reservation_id,
"mac_address": "",
"scheduled_at": utils.utcnow(),
"launched_at": utils.utcnow(),
"terminated_at": utils.utcnow(),
"availability_zone": "",
"display_name": server_name,
"display_description": "",
"locked": False,
"metadata": [],
"access_ip_v4": access_ipv4,
"access_ip_v6": access_ipv6,
"uuid": uuid,
"progress": progress}
return instance
def notify_usage_exists(instance_ref, current_period=False):
""" Generates 'exists' notification for an instance for usage auditing
purposes.
Generates usage for last completed period, unless 'current_period'
is True."""
admin_context = context.get_admin_context()
begin, end = utils.current_audit_period()
bw = {}
if current_period:
audit_start = end
audit_end = utils.utcnow()
else:
audit_start = begin
audit_end = end
for b in db.bw_usage_get_by_instance(admin_context,
instance_ref['id'],
audit_start):
bw[b.network_label] = dict(bw_in=b.bw_in, bw_out=b.bw_out)
usage_info = utils.usage_from_instance(instance_ref,
audit_period_beginning=str(audit_start),
audit_period_ending=str(audit_end),
bandwidth=bw)
notifier_api.notify('compute.%s' % FLAGS.host,
'compute.instance.exists',
notifier_api.INFO,
usage_info)
def log_request_completion(self, response, request, start):
apireq = request.environ.get('ec2.request', None)
if apireq:
controller = apireq.controller
action = apireq.action
else:
controller = None
action = None
ctxt = request.environ.get('engine.context', None)
delta = utils.utcnow() - start
seconds = delta.seconds
microseconds = delta.microseconds
LOG.info(
"%s.%ss %s %s %s %s:%s %s [%s] %s %s",
seconds,
microseconds,
request.remote_addr,
request.method,
"%s%s" % (request.script_name, request.path_info),
controller,
action,
response.status_int,
request.user_agent,
request.content_type,
response.content_type,
context=ctxt)
def describe_hosts(self, context, **_kwargs):
"""Returns status info for all nodes. Includes:
* Hostname
* Compute (up, down, None)
* Instance count
* Volume (up, down, None)
* Volume Count
"""
services = db.service_get_all(context, False)
now = utils.utcnow()
hosts = []
rv = []
for host in [service['host'] for service in services]:
if not host in hosts:
hosts.append(host)
for host in hosts:
compute = [s for s in services if s['host'] == host \
and s['binary'] == 'engine-compute']
if compute:
compute = compute[0]
instances = db.instance_get_all_by_host(context, host)
volume = [s for s in services if s['host'] == host \
and s['binary'] == 'engine-volume']
if volume:
volume = volume[0]
volumes = db.volume_get_all_by_host(context, host)
rv.append(host_dict(host, compute, instances, volume, volumes,
now))
return {'hosts': rv}
def _provision_volume(self, context, vol, vsa_id, availability_zone):
if availability_zone is None:
availability_zone = FLAGS.storage_availability_zone
now = utils.utcnow()
options = {
'size': vol['size'],
'user_id': context.user_id,
'project_id': context.project_id,
'snapshot_id': None,
'availability_zone': availability_zone,
'status': "creating",
'attach_status': "detached",
'display_name': vol['name'],
'display_description': vol['description'],
'volume_type_id': vol['volume_type_id'],
'metadata': dict(to_vsa_id=vsa_id),
}
size = vol['size']
host = vol['host']
name = vol['name']
LOG.debug(_("Provision volume %(name)s of size %(size)s GB on "\
"host %(host)s"), locals())
volume_ref = db.volume_create(context.elevated(), options)
driver.cast_to_volume_host(context, vol['host'],
'create_volume', volume_id=volume_ref['id'],
snapshot_id=None)
def __init__(self, user_id, project_id, is_admin=None, read_deleted="no",
roles=None, remote_address=None, timestamp=None,
request_id=None, auth_token=None, strategy='noauth'):
"""
:param read_deleted: 'no' indicates deleted records are hidden, 'yes'
indicates deleted records are visible, 'only' indicates that
*only* deleted records are visible.
"""
self.user_id = user_id
self.project_id = project_id
self.roles = roles or []
self.is_admin = is_admin
if self.is_admin is None:
self.is_admin = 'admin' in [x.lower() for x in self.roles]
self.read_deleted = read_deleted
self.remote_address = remote_address
if not timestamp:
timestamp = utils.utcnow()
if isinstance(timestamp, basestring):
timestamp = utils.parse_strtime(timestamp)
self.timestamp = timestamp
if not request_id:
request_id = unicode(uuid.uuid4())
self.request_id = request_id
self.auth_token = auth_token
self.strategy = strategy
local.store.context = self
def notify_usage_exists(instance_ref, current_period=False):
""" Generates 'exists' notification for an instance for usage auditing
purposes.
Generates usage for last completed period, unless 'current_period'
is True."""
admin_context = context.get_admin_context()
begin, end = utils.current_audit_period()
bw = {}
if current_period:
audit_start = end
audit_end = utils.utcnow()
else:
audit_start = begin
audit_end = end
for b in db.bw_usage_get_by_instance(admin_context, instance_ref['id'],
audit_start):
bw[b.network_label] = dict(bw_in=b.bw_in, bw_out=b.bw_out)
usage_info = utils.usage_from_instance(
instance_ref,
audit_period_beginning=str(audit_start),
audit_period_ending=str(audit_end),
bandwidth=bw)
notifier_api.notify('compute.%s' % FLAGS.host, 'compute.instance.exists',
notifier_api.INFO, usage_info)
def describe_hosts(self, context, **_kwargs):
"""Returns status info for all nodes. Includes:
* Hostname
* Compute (up, down, None)
* Instance count
* Volume (up, down, None)
* Volume Count
"""
services = db.service_get_all(context, False)
now = utils.utcnow()
hosts = []
rv = []
for host in [service['host'] for service in services]:
if not host in hosts:
hosts.append(host)
for host in hosts:
compute = [s for s in services if s['host'] == host \
and s['binary'] == 'engine-compute']
if compute:
compute = compute[0]
instances = db.instance_get_all_by_host(context, host)
volume = [s for s in services if s['host'] == host \
and s['binary'] == 'engine-volume']
if volume:
volume = volume[0]
volumes = db.volume_get_all_by_host(context, host)
rv.append(host_dict(host, compute, instances, volume, volumes,
now))
return {'hosts': rv}
def __init__(self,
user_id,
project_id,
is_admin=None,
read_deleted="no",
roles=None,
remote_address=None,
timestamp=None,
request_id=None,
auth_token=None,
strategy='noauth'):
"""
:param read_deleted: 'no' indicates deleted records are hidden, 'yes'
indicates deleted records are visible, 'only' indicates that
*only* deleted records are visible.
"""
self.user_id = user_id
self.project_id = project_id
self.roles = roles or []
self.is_admin = is_admin
if self.is_admin is None:
self.is_admin = 'admin' in [x.lower() for x in self.roles]
self.read_deleted = read_deleted
self.remote_address = remote_address
if not timestamp:
timestamp = utils.utcnow()
if isinstance(timestamp, basestring):
timestamp = utils.parse_strtime(timestamp)
self.timestamp = timestamp
if not request_id:
request_id = unicode(uuid.uuid4())
self.request_id = request_id
self.auth_token = auth_token
self.strategy = strategy
local.store.context = self
def _provision_volume(self, context, vol, vsa_id, availability_zone):
if availability_zone is None:
availability_zone = FLAGS.storage_availability_zone
now = utils.utcnow()
options = {
'size': vol['size'],
'user_id': context.user_id,
'project_id': context.project_id,
'snapshot_id': None,
'availability_zone': availability_zone,
'status': "creating",
'attach_status': "detached",
'display_name': vol['name'],
'display_description': vol['description'],
'volume_type_id': vol['volume_type_id'],
'metadata': dict(to_vsa_id=vsa_id),
}
size = vol['size']
host = vol['host']
name = vol['name']
LOG.debug(_("Provision volume %(name)s of size %(size)s GB on "\
"host %(host)s"), locals())
volume_ref = db.volume_create(context.elevated(), options)
driver.cast_to_volume_host(context,
vol['host'],
'create_volume',
volume_id=volume_ref['id'],
snapshot_id=None)
def host_service_caps_stale(self, host, service):
"""Check if host service capabilites are not recent enough."""
allowed_time_diff = FLAGS.periodic_interval * 3
caps = self.service_states[host][service]
if (utils.utcnow() - caps["timestamp"]) <= \
datetime.timedelta(seconds=allowed_time_diff):
return False
return True
def update_metadata(self, zone_metadata):
"""Update zone metadata after successful communications with
child zone."""
self.last_seen = utils.utcnow()
self.attempt = 0
self.capabilities = ", ".join(["%s=%s" % (k, v)
for k, v in zone_metadata.iteritems() if k != 'name'])
self.is_active = True
def host_service_caps_stale(self, host, service):
"""Check if host service capabilites are not recent enough."""
allowed_time_diff = FLAGS.periodic_interval * 3
caps = self.service_states[host][service]
if (utils.utcnow() - caps["timestamp"]) <= \
datetime.timedelta(seconds=allowed_time_diff):
return False
return True
def update_service_capabilities(self, service_name, host, capabilities):
"""Update the per-service capabilities based on this notification."""
logging.debug(_("Received %(service_name)s service update from "
"%(host)s.") % locals())
service_caps = self.service_states.get(host, {})
capabilities["timestamp"] = utils.utcnow() # Reported time
service_caps[service_name] = capabilities
self.service_states[host] = service_caps
def test_get_zone_capabilities_one_stale_service_per_host(self):
zm = zone_manager.ZoneManager()
expiry_time = (FLAGS.periodic_interval * 3) + 1
# Two host services among four become stale
zm.update_service_capabilities("svc1", "host1", dict(a=1, b=2))
zm.update_service_capabilities("svc1", "host2", dict(a=3, b=4))
zm.update_service_capabilities("svc2", "host1", dict(a=5, b=6))
zm.update_service_capabilities("svc2", "host2", dict(a=7, b=8))
serv_caps_1 = zm.service_states["host1"]["svc2"]
serv_caps_1["timestamp"] = utils.utcnow() - \
datetime.timedelta(seconds=expiry_time)
serv_caps_2 = zm.service_states["host2"]["svc1"]
serv_caps_2["timestamp"] = utils.utcnow() - \
datetime.timedelta(seconds=expiry_time)
caps = zm.get_zone_capabilities(None)
self.assertEquals(caps, dict(svc1_a=(1, 1), svc1_b=(2, 2),
svc2_a=(7, 7), svc2_b=(8, 8)))
def update_service_capabilities(self, service_name, host, capabilities):
"""Update the per-service capabilities based on this notification."""
logging.debug(
_("Received %(service_name)s service update from "
"%(host)s.") % locals())
service_caps = self.service_states.get(host, {})
capabilities["timestamp"] = utils.utcnow() # Reported time
service_caps[service_name] = capabilities
self.service_states[host] = service_caps
def update_metadata(self, zone_metadata):
"""Update zone metadata after successful communications with
child zone."""
self.last_seen = utils.utcnow()
self.attempt = 0
self.capabilities = ", ".join([
"%s=%s" % (k, v) for k, v in zone_metadata.iteritems()
if k != 'name'
])
self.is_active = True
def test_get_zone_capabilities_one_stale_service_per_host(self):
zm = zone_manager.ZoneManager()
expiry_time = (FLAGS.periodic_interval * 3) + 1
# Two host services among four become stale
zm.update_service_capabilities("svc1", "host1", dict(a=1, b=2))
zm.update_service_capabilities("svc1", "host2", dict(a=3, b=4))
zm.update_service_capabilities("svc2", "host1", dict(a=5, b=6))
zm.update_service_capabilities("svc2", "host2", dict(a=7, b=8))
serv_caps_1 = zm.service_states["host1"]["svc2"]
serv_caps_1["timestamp"] = utils.utcnow() - \
datetime.timedelta(seconds=expiry_time)
serv_caps_2 = zm.service_states["host2"]["svc1"]
serv_caps_2["timestamp"] = utils.utcnow() - \
datetime.timedelta(seconds=expiry_time)
caps = zm.get_zone_capabilities(None)
self.assertEquals(
caps,
dict(svc1_a=(1, 1), svc1_b=(2, 2), svc2_a=(7, 7), svc2_b=(8, 8)))
def test_get_zone_capabilities_expired_host(self):
zm = zone_manager.ZoneManager()
expiry_time = (FLAGS.periodic_interval * 3) + 1
# Service capabilities stale
zm.update_service_capabilities("svc1", "host1", dict(a=1, b=2))
time_future = utils.utcnow() + datetime.timedelta(seconds=expiry_time)
utils.set_time_override(time_future)
caps = zm.get_zone_capabilities(None)
self.assertEquals(caps, {})
utils.clear_time_override()
def test_get_zone_capabilities_expired_host(self):
zm = zone_manager.ZoneManager()
expiry_time = (FLAGS.periodic_interval * 3) + 1
# Service capabilities stale
zm.update_service_capabilities("svc1", "host1", dict(a=1, b=2))
time_future = utils.utcnow() + datetime.timedelta(seconds=expiry_time)
utils.set_time_override(time_future)
caps = zm.get_zone_capabilities(None)
self.assertEquals(caps, {})
utils.clear_time_override()
def test_host_service_caps_stale_one_stale_service(self):
zm = zone_manager.ZoneManager()
expiry_time = (FLAGS.periodic_interval * 3) + 1
# One service became stale
zm.update_service_capabilities("svc1", "host1", dict(a=1, b=2))
zm.update_service_capabilities("svc2", "host1", dict(a=3, b=4))
caps = zm.service_states["host1"]["svc1"]
caps["timestamp"] = utils.utcnow() - \
datetime.timedelta(seconds=expiry_time)
self.assertTrue(zm.host_service_caps_stale("host1", "svc1"))
self.assertFalse(zm.host_service_caps_stale("host1", "svc2"))
def test_get_zone_capabilities_one_stale_host(self):
zm = zone_manager.ZoneManager()
expiry_time = (FLAGS.periodic_interval * 3) + 1
# One host service capabilities become stale
zm.update_service_capabilities("svc1", "host1", dict(a=1, b=2))
zm.update_service_capabilities("svc1", "host2", dict(a=3, b=4))
serv_caps = zm.service_states["host1"]["svc1"]
serv_caps["timestamp"] = utils.utcnow() - \
datetime.timedelta(seconds=expiry_time)
caps = zm.get_zone_capabilities(None)
self.assertEquals(caps, dict(svc1_a=(3, 3), svc1_b=(4, 4)))
def test_host_service_caps_stale_all_stale_services(self):
zm = zone_manager.ZoneManager()
expiry_time = (FLAGS.periodic_interval * 3) + 1
# Both services became stale
zm.update_service_capabilities("svc1", "host1", dict(a=1, b=2))
zm.update_service_capabilities("svc2", "host1", dict(a=3, b=4))
time_future = utils.utcnow() + datetime.timedelta(seconds=expiry_time)
utils.set_time_override(time_future)
self.assertTrue(zm.host_service_caps_stale("host1", "svc1"))
self.assertTrue(zm.host_service_caps_stale("host1", "svc2"))
utils.clear_time_override()
def test_get_zone_capabilities_one_stale_host(self):
zm = zone_manager.ZoneManager()
expiry_time = (FLAGS.periodic_interval * 3) + 1
# One host service capabilities become stale
zm.update_service_capabilities("svc1", "host1", dict(a=1, b=2))
zm.update_service_capabilities("svc1", "host2", dict(a=3, b=4))
serv_caps = zm.service_states["host1"]["svc1"]
serv_caps["timestamp"] = utils.utcnow() - \
datetime.timedelta(seconds=expiry_time)
caps = zm.get_zone_capabilities(None)
self.assertEquals(caps, dict(svc1_a=(3, 3), svc1_b=(4, 4)))
def test_host_service_caps_stale_one_stale_service(self):
zm = zone_manager.ZoneManager()
expiry_time = (FLAGS.periodic_interval * 3) + 1
# One service became stale
zm.update_service_capabilities("svc1", "host1", dict(a=1, b=2))
zm.update_service_capabilities("svc2", "host1", dict(a=3, b=4))
caps = zm.service_states["host1"]["svc1"]
caps["timestamp"] = utils.utcnow() - \
datetime.timedelta(seconds=expiry_time)
self.assertTrue(zm.host_service_caps_stale("host1", "svc1"))
self.assertFalse(zm.host_service_caps_stale("host1", "svc2"))
def test_host_service_caps_stale_all_stale_services(self):
zm = zone_manager.ZoneManager()
expiry_time = (FLAGS.periodic_interval * 3) + 1
# Both services became stale
zm.update_service_capabilities("svc1", "host1", dict(a=1, b=2))
zm.update_service_capabilities("svc2", "host1", dict(a=3, b=4))
time_future = utils.utcnow() + datetime.timedelta(seconds=expiry_time)
utils.set_time_override(time_future)
self.assertTrue(zm.host_service_caps_stale("host1", "svc1"))
self.assertTrue(zm.host_service_caps_stale("host1", "svc2"))
utils.clear_time_override()
def delete(self, context, volume_id):
volume = self.get(context, volume_id)
if volume['status'] != "available":
raise exception.ApiError(_("Volume status must be available"))
now = utils.utcnow()
self.db.volume_update(context, volume_id, {'status': 'deleting',
'terminated_at': now})
host = volume['host']
rpc.cast(context,
self.db.queue_get_for(context, FLAGS.volume_topic, host),
{"method": "delete_volume",
"args": {"volume_id": volume_id}})
def notify(publisher_id, event_type, priority, payload):
"""
Sends a notification using the specified driver
Notify parameters:
publisher_id - the source worker_type.host of the message
event_type - the literal type of event (ex. Instance Creation)
priority - patterned after the enumeration of Python logging levels in
the set (DEBUG, WARN, INFO, ERROR, CRITICAL)
payload - A python dictionary of attributes
Outgoing message format includes the above parameters, and appends the
following:
message_id - a UUID representing the id for this notification
timestamp - the GMT timestamp the notification was sent at
The composite message will be constructed as a dictionary of the above
attributes, which will then be sent via the transport mechanism defined
by the driver.
Message example:
{'message_id': str(uuid.uuid4()),
'publisher_id': 'compute.host1',
'timestamp': utils.utcnow(),
'priority': 'WARN',
'event_type': 'compute.create_instance',
'payload': {'instance_id': 12, ... }}
"""
if priority not in log_levels:
raise BadPriorityException(
_('%s not in valid priorities' % priority))
# Ensure everything is JSON serializable.
payload = utils.to_primitive(payload, convert_instances=True)
driver = utils.import_object(FLAGS.notification_driver)
msg = dict(message_id=str(uuid.uuid4()),
publisher_id=publisher_id,
event_type=event_type,
priority=priority,
payload=payload,
timestamp=str(utils.utcnow()))
try:
driver.notify(msg)
except Exception, e:
LOG.exception(_("Problem '%(e)s' attempting to "
"send to notification system. Payload=%(payload)s" %
locals()))
def test_get_zone_capabilities_all_stale_host_services(self):
zm = zone_manager.ZoneManager()
expiry_time = (FLAGS.periodic_interval * 3) + 1
# All the host services become stale
zm.update_service_capabilities("svc1", "host1", dict(a=1, b=2))
zm.update_service_capabilities("svc1", "host2", dict(a=3, b=4))
zm.update_service_capabilities("svc2", "host1", dict(a=5, b=6))
zm.update_service_capabilities("svc2", "host2", dict(a=7, b=8))
time_future = utils.utcnow() + datetime.timedelta(seconds=expiry_time)
utils.set_time_override(time_future)
caps = zm.get_zone_capabilities(None)
self.assertEquals(caps, {})
def cast_to_volume_host(context, host, method, update_db=True, **kwargs):
"""Cast request to a volume host queue"""
if update_db:
volume_id = kwargs.get('volume_id', None)
if volume_id is not None:
now = utils.utcnow()
db.volume_update(context, volume_id,
{'host': host, 'scheduled_at': now})
rpc.cast(context,
db.queue_get_for(context, 'volume', host),
{"method": method, "args": kwargs})
LOG.debug(_("Casted '%(method)s' to volume '%(host)s'") % locals())
def test_get_zone_capabilities_all_stale_host_services(self):
zm = zone_manager.ZoneManager()
expiry_time = (FLAGS.periodic_interval * 3) + 1
# All the host services become stale
zm.update_service_capabilities("svc1", "host1", dict(a=1, b=2))
zm.update_service_capabilities("svc1", "host2", dict(a=3, b=4))
zm.update_service_capabilities("svc2", "host1", dict(a=5, b=6))
zm.update_service_capabilities("svc2", "host2", dict(a=7, b=8))
time_future = utils.utcnow() + datetime.timedelta(seconds=expiry_time)
utils.set_time_override(time_future)
caps = zm.get_zone_capabilities(None)
self.assertEquals(caps, {})
def notify(publisher_id, event_type, priority, payload):
"""
Sends a notification using the specified driver
Notify parameters:
publisher_id - the source worker_type.host of the message
event_type - the literal type of event (ex. Instance Creation)
priority - patterned after the enumeration of Python logging levels in
the set (DEBUG, WARN, INFO, ERROR, CRITICAL)
payload - A python dictionary of attributes
Outgoing message format includes the above parameters, and appends the
following:
message_id - a UUID representing the id for this notification
timestamp - the GMT timestamp the notification was sent at
The composite message will be constructed as a dictionary of the above
attributes, which will then be sent via the transport mechanism defined
by the driver.
Message example:
{'message_id': str(uuid.uuid4()),
'publisher_id': 'compute.host1',
'timestamp': utils.utcnow(),
'priority': 'WARN',
'event_type': 'compute.create_instance',
'payload': {'instance_id': 12, ... }}
"""
if priority not in log_levels:
raise BadPriorityException(_('%s not in valid priorities' % priority))
# Ensure everything is JSON serializable.
payload = utils.to_primitive(payload, convert_instances=True)
driver = utils.import_object(FLAGS.notification_driver)
msg = dict(message_id=str(uuid.uuid4()),
publisher_id=publisher_id,
event_type=event_type,
priority=priority,
payload=payload,
timestamp=str(utils.utcnow()))
try:
driver.notify(msg)
except Exception, e:
LOG.exception(
_("Problem '%(e)s' attempting to "
"send to notification system. Payload=%(payload)s" % locals()))
def cast_to_compute_host(context, host, method, update_db=True, **kwargs):
"""Cast request to a compute host queue"""
if update_db:
# fall back on the id if the uuid is not present
instance_id = kwargs.get('instance_id', None)
instance_uuid = kwargs.get('instance_uuid', instance_id)
if instance_uuid is not None:
now = utils.utcnow()
db.instance_update(context, instance_uuid,
{'host': host, 'scheduled_at': now})
rpc.cast(context,
db.queue_get_for(context, 'compute', host),
{"method": method, "args": kwargs})
LOG.debug(_("Casted '%(method)s' to compute '%(host)s'") % locals())
def cast_to_volume_host(context, host, method, update_db=True, **kwargs):
"""Cast request to a volume host queue"""
if update_db:
volume_id = kwargs.get('volume_id', None)
if volume_id is not None:
now = utils.utcnow()
db.volume_update(context, volume_id, {
'host': host,
'scheduled_at': now
})
rpc.cast(context, db.queue_get_for(context, 'volume', host), {
"method": method,
"args": kwargs
})
LOG.debug(_("Casted '%(method)s' to volume '%(host)s'") % locals())
def log_error(self, exception):
"""Something went wrong. Check to see if zone should be
marked as offline."""
self.last_exception = exception
self.last_exception_time = utils.utcnow()
api_url = self.api_url
logging.warning(_("'%(exception)s' error talking to "
"zone %(api_url)s") % locals())
max_errors = FLAGS.zone_failures_to_offline
self.attempt += 1
if self.attempt >= max_errors:
self.is_active = False
logging.error(_("No answer from zone %(api_url)s "
"after %(max_errors)d "
"attempts. Marking inactive.") % locals())
def delete(self, context, volume_id):
volume = self.get(context, volume_id)
if volume['status'] != "available":
raise exception.ApiError(_("Volume status must be available"))
now = utils.utcnow()
self.db.volume_update(context, volume_id, {
'status': 'deleting',
'terminated_at': now
})
host = volume['host']
rpc.cast(context,
self.db.queue_get_for(context, FLAGS.volume_topic, host), {
"method": "delete_volume",
"args": {
"volume_id": volume_id
}
})
def create_volume(self, context, volume_id, snapshot_id=None):
"""Creates and exports the volume."""
context = context.elevated()
volume_ref = self.db.volume_get(context, volume_id)
LOG.info(_("volume %s: creating"), volume_ref['name'])
self.db.volume_update(context,
volume_id,
{'host': self.host})
# NOTE(vish): so we don't have to get volume from db again
# before passing it to the driver.
volume_ref['host'] = self.host
try:
vol_name = volume_ref['name']
vol_size = volume_ref['size']
LOG.debug(_("volume %(vol_name)s: creating lv of"
" size %(vol_size)sG") % locals())
if snapshot_id is None:
model_update = self.driver.create_volume(volume_ref)
else:
snapshot_ref = self.db.snapshot_get(context, snapshot_id)
model_update = self.driver.create_volume_from_snapshot(
volume_ref,
snapshot_ref)
if model_update:
self.db.volume_update(context, volume_ref['id'], model_update)
LOG.debug(_("volume %s: creating export"), volume_ref['name'])
model_update = self.driver.create_export(context, volume_ref)
if model_update:
self.db.volume_update(context, volume_ref['id'], model_update)
except Exception:
with utils.save_and_reraise_exception():
self.db.volume_update(context,
volume_ref['id'], {'status': 'error'})
self._notify_vsa(context, volume_ref, 'error')
now = utils.utcnow()
self.db.volume_update(context,
volume_ref['id'], {'status': 'available',
'launched_at': now})
LOG.debug(_("volume %s: created successfully"), volume_ref['name'])
self._notify_vsa(context, volume_ref, 'available')
self._reset_stats()
return volume_id
def setUp(self):
"""Run before each test method to initialize test environment."""
super(TestCase, self).setUp()
# NOTE(vish): We need a better method for creating fixtures for tests
# now that we have some required db setup for the system
# to work properly.
self.start = utils.utcnow()
shutil.copyfile(os.path.join(FLAGS.state_path, FLAGS.sqlite_clean_db),
os.path.join(FLAGS.state_path, FLAGS.sqlite_db))
# emulate some of the mox stuff, we can't use the metaclass
# because it screws with our generators
self.mox = mox.Mox()
self.stubs = stubout.StubOutForTesting()
self.injected = []
self._services = []
self._original_flags = FLAGS.FlagValuesDict()
def setUp(self):
"""Run before each test method to initialize test environment."""
super(TestCase, self).setUp()
# NOTE(vish): We need a better method for creating fixtures for tests
# now that we have some required db setup for the system
# to work properly.
self.start = utils.utcnow()
shutil.copyfile(os.path.join(FLAGS.state_path, FLAGS.sqlite_clean_db),
os.path.join(FLAGS.state_path, FLAGS.sqlite_db))
# emulate some of the mox stuff, we can't use the metaclass
# because it screws with our generators
self.mox = mox.Mox()
self.stubs = stubout.StubOutForTesting()
self.injected = []
self._services = []
self._original_flags = FLAGS.FlagValuesDict()
def create_volume(self, context, volume_id, snapshot_id=None):
"""Creates and exports the volume."""
context = context.elevated()
volume_ref = self.db.volume_get(context, volume_id)
LOG.info(_("volume %s: creating"), volume_ref['name'])
self.db.volume_update(context, volume_id, {'host': self.host})
# NOTE(vish): so we don't have to get volume from db again
# before passing it to the driver.
volume_ref['host'] = self.host
try:
vol_name = volume_ref['name']
vol_size = volume_ref['size']
LOG.debug(
_("volume %(vol_name)s: creating lv of"
" size %(vol_size)sG") % locals())
if snapshot_id is None:
model_update = self.driver.create_volume(volume_ref)
else:
snapshot_ref = self.db.snapshot_get(context, snapshot_id)
model_update = self.driver.create_volume_from_snapshot(
volume_ref, snapshot_ref)
if model_update:
self.db.volume_update(context, volume_ref['id'], model_update)
LOG.debug(_("volume %s: creating export"), volume_ref['name'])
model_update = self.driver.create_export(context, volume_ref)
if model_update:
self.db.volume_update(context, volume_ref['id'], model_update)
except Exception:
with utils.save_and_reraise_exception():
self.db.volume_update(context, volume_ref['id'],
{'status': 'error'})
self._notify_vsa(context, volume_ref, 'error')
now = utils.utcnow()
self.db.volume_update(context, volume_ref['id'], {
'status': 'available',
'launched_at': now
})
LOG.debug(_("volume %s: created successfully"), volume_ref['name'])
self._notify_vsa(context, volume_ref, 'available')
self._reset_stats()
return volume_id
def cast_to_compute_host(context, host, method, update_db=True, **kwargs):
"""Cast request to a compute host queue"""
if update_db:
# fall back on the id if the uuid is not present
instance_id = kwargs.get('instance_id', None)
instance_uuid = kwargs.get('instance_uuid', instance_id)
if instance_uuid is not None:
now = utils.utcnow()
db.instance_update(context, instance_uuid, {
'host': host,
'scheduled_at': now
})
rpc.cast(context, db.queue_get_for(context, 'compute', host), {
"method": method,
"args": kwargs
})
LOG.debug(_("Casted '%(method)s' to compute '%(host)s'") % locals())
def log_error(self, exception):
"""Something went wrong. Check to see if zone should be
marked as offline."""
self.last_exception = exception
self.last_exception_time = utils.utcnow()
api_url = self.api_url
logging.warning(
_("'%(exception)s' error talking to "
"zone %(api_url)s") % locals())
max_errors = FLAGS.zone_failures_to_offline
self.attempt += 1
if self.attempt >= max_errors:
self.is_active = False
logging.error(
_("No answer from zone %(api_url)s "
"after %(max_errors)d "
"attempts. Marking inactive.") % locals())
def authorize_token(self, token_hash):
""" retrieves user information from the datastore given a token
If the token has expired, returns None
If the token is not found, returns None
Otherwise returns dict(id=(the authorized user's id))
This method will also remove the token if the timestamp is older than
2 days ago.
"""
ctxt = context.get_admin_context()
try:
token = self.db.auth_token_get(ctxt, token_hash)
except exception.NotFound:
return None
if token:
delta = utils.utcnow() - token['created_at']
if delta.days >= 2:
self.db.auth_token_destroy(ctxt, token['token_hash'])
else:
return token['user_id']
return None
def authorize_token(self, token_hash):
""" retrieves user information from the datastore given a token
If the token has expired, returns None
If the token is not found, returns None
Otherwise returns dict(id=(the authorized user's id))
This method will also remove the token if the timestamp is older than
2 days ago.
"""
ctxt = context.get_admin_context()
try:
token = self.db.auth_token_get(ctxt, token_hash)
except exception.NotFound:
return None
if token:
delta = utils.utcnow() - token['created_at']
if delta.days >= 2:
self.db.auth_token_destroy(ctxt, token['token_hash'])
else:
return token['user_id']
return None
def _generate_default_service_states(self):
service_states = {}
for i in range(self.host_num):
host = {}
hostname = 'host_' + str(i)
if hostname in self.exclude_host_list:
continue
host['volume'] = {'timestamp': utils.utcnow(),
'drive_qos_info': {}}
for j in range(self.drive_type_start_ix,
self.drive_type_start_ix + self.drive_type_num):
dtype = {}
dtype['Name'] = 'name_' + str(j)
dtype['DriveType'] = 'type_' + str(j)
dtype['TotalDrives'] = 2 * (self.init_num_drives + i)
dtype['DriveCapacity'] = vsa_sched.GB_TO_BYTES(1 + 100 * j)
dtype['TotalCapacity'] = dtype['TotalDrives'] * \
dtype['DriveCapacity']
dtype['AvailableCapacity'] = (dtype['TotalDrives'] - i) * \
dtype['DriveCapacity']
dtype['DriveRpm'] = 7200
dtype['DifCapable'] = 0
dtype['SedCapable'] = 0
dtype['PartitionDrive'] = {
'PartitionSize': 0,
'NumOccupiedPartitions': 0,
'NumFreePartitions': 0}
dtype['FullDrive'] = {
'NumFreeDrives': dtype['TotalDrives'] - i,
'NumOccupiedDrives': i}
host['volume']['drive_qos_info'][dtype['Name']] = dtype
service_states[hostname] = host
return service_states
def service_is_up(service):
"""Check whether a service is up based on last heartbeat."""
last_heartbeat = service['updated_at'] or service['created_at']
# Timestamps in DB are UTC.
elapsed = utils.total_seconds(utils.utcnow() - last_heartbeat)
return abs(elapsed) <= FLAGS.service_down_time
def __call__(self, req):
start = utils.utcnow()
rv = req.get_response(self.application)
self.log_request_completion(rv, req, start)
return rv
def delete(self, session=None):
"""Delete this object."""
self.deleted = True
self.deleted_at = utils.utcnow()
self.save(session=session)
import datetime
from sqlalchemy import *
from migrate import *
from engine import log as logging
from engine import utils
meta = MetaData()
# instance info cache table to add to DB
instance_info_caches = Table('instance_info_caches',
meta,
Column('created_at',
DateTime(timezone=False),
default=utils.utcnow()),
Column('updated_at',
DateTime(timezone=False),
onupdate=utils.utcnow()),
Column('deleted_at', DateTime(timezone=False)),
Column('deleted',
Boolean(create_constraint=True,
name=None)),
Column('id', Integer(), primary_key=True),
Column('network_info', Text()),
Column('instance_id',
String(36),
ForeignKey('instances.uuid'),
nullable=False,
unique=True),
mysql_engine='InnoDB')
def upgrade(migrate_engine):
meta.bind = migrate_engine
# grab tables
instance_info_caches = Table('instance_info_caches', meta, autoload=True)
instances = Table('instances', meta, autoload=True)
vifs = Table('virtual_interfaces', meta, autoload=True)
networks = Table('networks', meta, autoload=True)
fixed_ips = Table('fixed_ips', meta, autoload=True)
floating_ips = Table('floating_ips', meta, autoload=True)
# all of these functions return a python list of python dicts
# that have nothing to do with sqlalchemy objects whatsoever
# after returning
def get_instances():
# want all instances whether there is network info or not
s = select([instances.c.id, instances.c.uuid])
keys = ('id', 'uuid')
return [dict(zip(keys, row)) for row in s.execute()]
def get_vifs_by_instance_id(instance_id):
s = select([vifs.c.id, vifs.c.uuid, vifs.c.address, vifs.c.network_id],
vifs.c.instance_id == instance_id)
keys = ('id', 'uuid', 'address', 'network_id')
return [dict(zip(keys, row)) for row in s.execute()]
def get_network_by_id(network_id):
s = select([networks.c.uuid, networks.c.label,
networks.c.project_id,
networks.c.dns1, networks.c.dns2,
networks.c.cidr, networks.c.cidr_v6,
networks.c.gateway, networks.c.gateway_v6,
networks.c.injected, networks.c.multi_host,
networks.c.bridge, networks.c.bridge_interface,
networks.c.vlan],
networks.c.id == network_id)
keys = ('uuid', 'label', 'project_id', 'dns1', 'dns2',
'cidr', 'cidr_v6', 'gateway', 'gateway_v6',
'injected', 'multi_host', 'bridge', 'bridge_interface', 'vlan')
return [dict(zip(keys, row)) for row in s.execute()]
def get_fixed_ips_by_vif_id(vif_id):
s = select([fixed_ips.c.id, fixed_ips.c.address],
fixed_ips.c.virtual_interface_id == vif_id)
keys = ('id', 'address')
fixed_ip_list = [dict(zip(keys, row)) for row in s.execute()]
# fixed ips have floating ips, so here they are
for fixed_ip in fixed_ip_list:
fixed_ip['version'] = 4
fixed_ip['floating_ips'] =\
get_floating_ips_by_fixed_ip_id(fixed_ip['id'])
fixed_ip['type'] = 'fixed'
del fixed_ip['id']
return fixed_ip_list
def get_floating_ips_by_fixed_ip_id(fixed_ip_id):
s = select([floating_ips.c.address],
floating_ips.c.fixed_ip_id == fixed_ip_id)
keys = ('address')
floating_ip_list = [dict(zip(keys, row)) for row in s.execute()]
for floating_ip in floating_ip_list:
floating_ip['version'] = 4
floating_ip['type'] = 'floating'
return floating_ip_list
def _ip_dict_from_string(ip_string, type):
if ip_string:
ip = {'address': ip_string,
'type': type}
if ':' in ip_string:
ip['version'] = 6
else:
ip['version'] = 4
return ip
def _get_fixed_ipv6_dict(cidr, mac, project_id):
ip_string = ipv6.to_global(cidr, mac, project_id)
return {'version': 6,
'address': ip_string,
'floating_ips': []}
def _create_subnet(version, network, vif):
if version == 4:
cidr = network['cidr']
gateway = network['gateway']
ips = get_fixed_ips_by_vif_id(vif['id'])
else:
cidr = network['cidr_v6']
gateway = network['gateway_v6']
ips = [_get_fixed_ipv6_dict(network['cidr_v6'],
vif['address'],
network['project_id'])]
# NOTE(tr3buchet) routes is left empty for now because there
# is no good way to generate them or determine which is default
subnet = {'version': version,
'cidr': cidr,
'dns': [],
'gateway': _ip_dict_from_string(gateway, 'gateway'),
'routes': [],
'ips': ips}
if network['dns1'] and network['dns1']['version'] == version:
subnet['dns'].append(network['dns1'])
if network['dns2'] and network['dns2']['version'] == version:
subnet['dns'].append(network['dns2'])
return subnet
# preload caches table
# list is made up of a row(instance_id, nw_info_json) for each instance
for instance in get_instances():
logging.info("Updating %s" % (instance['uuid']))
instance_id = instance['id']
instance_uuid = instance['uuid']
# instances have vifs so aninstance nw_info is
# is a list of dicts, 1 dict for each vif
nw_info = get_vifs_by_instance_id(instance_id)
logging.info("VIFs for Instance %s: \n %s" % \
(instance['uuid'], nw_info))
for vif in nw_info:
network = get_network_by_id(vif['network_id'])[0]
logging.info("Network for Instance %s: \n %s" % \
(instance['uuid'], network))
# vifs have a network which has subnets, so create the subnets
# subnets contain all of the ip information
network['subnets'] = []
network['dns1'] = _ip_dict_from_string(network['dns1'], 'dns')
network['dns2'] = _ip_dict_from_string(network['dns2'], 'dns')
# engine networks can only have 2 subnets
if network['cidr']:
network['subnets'].append(_create_subnet(4, network, vif))
if network['cidr_v6']:
network['subnets'].append(_create_subnet(6, network, vif))
# put network together to fit model
network['id'] = network.pop('uuid')
network['meta'] = {}
# NOTE(tr3buchet) this isn't absolutely necessary as hydration
# would still work with these as keys, but cache generated by
# the model would show these keys as a part of meta. i went
# ahead and set it up the same way just so it looks the same
if network['project_id']:
network['meta']['project_id'] = network['project_id']
del network['project_id']
if network['injected']:
network['meta']['injected'] = network['injected']
del network['injected']
if network['multi_host']:
network['meta']['multi_host'] = network['multi_host']
del network['multi_host']
if network['bridge_interface']:
network['meta']['bridge_interface'] = \
network['bridge_interface']
del network['bridge_interface']
if network['vlan']:
network['meta']['vlan'] = network['vlan']
del network['vlan']
# ip information now lives in the subnet, pull them out of network
del network['dns1']
del network['dns2']
del network['cidr']
del network['cidr_v6']
del network['gateway']
del network['gateway_v6']
# don't need meta if it's empty
if not network['meta']:
del network['meta']
# put vif together to fit model
del vif['network_id']
vif['id'] = vif.pop('uuid')
vif['network'] = network
# vif['meta'] could also be set to contain rxtx data here
# but it isn't exposed in the api and is still being rewritten
logging.info("VIF network for instance %s: \n %s" % \
(instance['uuid'], vif['network']))
# jsonify nw_info
row = {'created_at': utils.utcnow(),
'updated_at': utils.utcnow(),
'instance_id': instance_uuid,
'network_info': json.dumps(nw_info)}
# write write row to table
insert = instance_info_caches.insert().values(**row)
migrate_engine.execute(insert)
# under the License.
import datetime
from sqlalchemy import *
from migrate import *
from engine import log as logging
from engine import utils
meta = MetaData()
# instance info cache table to add to DB
instance_info_caches = Table('instance_info_caches', meta,
Column('created_at', DateTime(timezone=False),
default=utils.utcnow()),
Column('updated_at', DateTime(timezone=False),
onupdate=utils.utcnow()),
Column('deleted_at', DateTime(timezone=False)),
Column('deleted', Boolean(create_constraint=True, name=None)),
Column('id', Integer(), primary_key=True),
Column('network_info', Text()),
Column('instance_id', String(36),
ForeignKey('instances.uuid'),
nullable=False,
unique=True),
mysql_engine='InnoDB')
def upgrade(migrate_engine):
meta.bind = migrate_engine
def stub_instance(id, metadata=None, image_ref="10", flavor_id="1",
name=None, vm_state=None, task_state=None, uuid=None,
access_ip_v4="", access_ip_v6=""):
if metadata is not None:
metadata_items = [{'key':k, 'value':v} for k, v in metadata.items()]
else:
metadata_items = [{'key':'seq', 'value':id}]
if uuid is None:
uuid = FAKE_UUID
inst_type = instance_types.get_instance_type_by_flavor_id(int(flavor_id))
instance = {
"id": int(id),
"name": str(id),
"created_at": datetime.datetime(2010, 10, 10, 12, 0, 0),
"updated_at": datetime.datetime(2010, 11, 11, 11, 0, 0),
"admin_pass": "",
"user_id": "fake",
"project_id": "fake",
"image_ref": image_ref,
"kernel_id": "",
"ramdisk_id": "",
"launch_index": 0,
"key_name": "",
"key_data": "",
"vm_state": vm_state or vm_states.ACTIVE,
"task_state": task_state,
"memory_mb": 0,
"vcpus": 0,
"local_gb": 0,
"hostname": "",
"host": "",
"instance_type": dict(inst_type),
"user_data": "",
"reservation_id": "",
"mac_address": "",
"scheduled_at": utils.utcnow(),
"launched_at": utils.utcnow(),
"terminated_at": utils.utcnow(),
"availability_zone": "",
"display_name": name or "server%s" % id,
"display_description": "",
"locked": False,
"metadata": metadata_items,
"access_ip_v4": access_ip_v4,
"access_ip_v6": access_ip_v6,
"uuid": uuid,
"virtual_interfaces": [],
"progress": 0,
}
instance["fixed_ips"] = [{"address": '192.168.0.1',
"network":
{'label': 'public', 'cidr_v6': None},
"virtual_interface":
{'address': 'aa:aa:aa:aa:aa:aa'},
"floating_ips": []}]
return instance