def schedule_create_volume(self, context, volume_id, snapshot_id,
image_id):
"""Picks a host that is up at random."""
host = self._schedule(context, FLAGS.volume_topic, None, {})
driver.cast_to_host(context, FLAGS.volume_topic, host, 'create_volume',
volume_id=volume_id, snapshot_id=snapshot_id,
image_id=image_id)
def schedule_prep_resize(self, context, request_spec, *args, **kwargs):
"""Select a target for resize.
Selects a target host for the instance, post-resize, and casts
the prep_resize operation to it.
"""
# We need the new instance type ID...
instance_type_id = kwargs['instance_type_id']
elevated = context.elevated()
LOG.debug(_("Attempting to determine target host for resize to "
"instance type %(instance_type_id)s") % locals())
# Convert it to an actual instance type
instance_type = db.instance_type_get(elevated, instance_type_id)
# Now let's grab a possibility
hosts = self._schedule(elevated, 'compute', request_spec,
*args, **kwargs)
if not hosts:
raise exception.NoValidHost(reason=_(""))
host = hosts.pop(0)
# Forward off to the host
driver.cast_to_host(context, 'compute', host.host, 'prep_resize',
**kwargs)
def schedule_prep_resize(self, context, request_spec, *args, **kwargs):
"""Select a target for resize.
Selects a target host for the instance, post-resize, and casts
the prep_resize operation to it.
"""
# We need the new instance type ID...
instance_type_id = kwargs["instance_type_id"]
elevated = context.elevated()
LOG.debug(
_("Attempting to determine target host for resize to " "instance type %(instance_type_id)s") % locals()
)
# Convert it to an actual instance type
instance_type = db.instance_type_get(elevated, instance_type_id)
# Now let's grab a possibility
hosts = self._schedule(elevated, "compute", request_spec, *args, **kwargs)
if not hosts:
raise exception.NoValidHost(reason=_(""))
host = hosts.pop(0)
# Forward off to the host
driver.cast_to_host(context, "compute", host.host, "prep_resize", **kwargs)
def test_cast_to_host_network_topic(self):
host = "fake_host1"
method = "fake_method"
fake_kwargs = {"extra_arg": "meow"}
self.mox.StubOutWithMock(driver, "cast_to_network_host")
driver.cast_to_network_host(self.context, host, method, **fake_kwargs)
self.mox.ReplayAll()
driver.cast_to_host(self.context, "network", host, method, **fake_kwargs)
def test_cast_to_host_network_topic(self):
host = 'fake_host1'
method = 'fake_method'
fake_kwargs = {'extra_arg': 'meow'}
self.mox.StubOutWithMock(driver, 'cast_to_network_host')
driver.cast_to_network_host(self.context, host, method, **fake_kwargs)
self.mox.ReplayAll()
driver.cast_to_host(self.context, 'network', host, method,
**fake_kwargs)
def schedule_create_volume(self, context, volume_id, snapshot_id,
image_id):
"""Picks a host that is up at random."""
host = self._schedule(context, FLAGS.volume_topic, None, {})
driver.cast_to_host(context,
FLAGS.volume_topic,
host,
'create_volume',
volume_id=volume_id,
snapshot_id=snapshot_id,
image_id=image_id)
def test_cast_to_host_network_topic(self):
host = 'fake_host1'
method = 'fake_method'
fake_kwargs = {'extra_arg': 'meow'}
self.mox.StubOutWithMock(driver, 'cast_to_network_host')
driver.cast_to_network_host(self.context, host, method,
update_db=False, **fake_kwargs)
self.mox.ReplayAll()
driver.cast_to_host(self.context, 'network', host, method,
update_db=False, **fake_kwargs)
def test_cast_to_host_volume_topic(self):
host = 'fake_host1'
method = 'fake_method'
fake_kwargs = {'extra_arg': 'meow'}
self.mox.StubOutWithMock(driver, 'cast_to_volume_host')
driver.cast_to_volume_host(self.context, host, method,
update_db=False, **fake_kwargs)
self.mox.ReplayAll()
driver.cast_to_host(self.context, 'volume', host, method,
update_db=False, **fake_kwargs)
def test_cast_to_host_volume_topic(self):
host = 'fake_host1'
method = 'fake_method'
fake_kwargs = {'extra_arg': 'meow'}
self.mox.StubOutWithMock(driver, 'cast_to_volume_host')
driver.cast_to_volume_host(self.context, host, method,
**fake_kwargs)
self.mox.ReplayAll()
driver.cast_to_host(self.context, 'volume', host, method,
**fake_kwargs)
def test_cast_to_host_unknown_topic(self):
host = "fake_host1"
method = "fake_method"
fake_kwargs = {"extra_arg": "meow"}
topic = "unknown"
queue = "fake_queue"
self.mox.StubOutWithMock(rpc, "queue_get_for")
self.mox.StubOutWithMock(rpc, "cast")
rpc.queue_get_for(self.context, topic, host).AndReturn(queue)
rpc.cast(self.context, queue, {"method": method, "args": fake_kwargs})
self.mox.ReplayAll()
driver.cast_to_host(self.context, topic, host, method, **fake_kwargs)
def test_cast_to_host_unknown_topic(self):
host = 'fake_host1'
method = 'fake_method'
fake_kwargs = {'extra_arg': 'meow'}
topic = 'unknown'
queue = 'fake_queue'
self.mox.StubOutWithMock(rpc, 'queue_get_for')
self.mox.StubOutWithMock(rpc, 'cast')
rpc.queue_get_for(self.context, topic, host).AndReturn(queue)
rpc.cast(self.context, queue, {'method': method, 'args': fake_kwargs})
self.mox.ReplayAll()
driver.cast_to_host(self.context, topic, host, method, **fake_kwargs)
def test_cast_to_host_unknown_topic(self):
host = 'fake_host1'
method = 'fake_method'
fake_kwargs = {'extra_arg': 'meow'}
topic = 'unknown'
queue = 'fake_queue'
self.mox.StubOutWithMock(db, 'queue_get_for')
self.mox.StubOutWithMock(rpc, 'cast')
db.queue_get_for(self.context, topic, host).AndReturn(queue)
rpc.cast(self.context, queue,
{'method': method,
'args': fake_kwargs})
self.mox.ReplayAll()
driver.cast_to_host(self.context, topic, host, method,
update_db=False, **fake_kwargs)
def test_basic_schedule_fallback(self):
ctxt = context.RequestContext('fake', 'fake', False)
ctxt_elevated = 'fake-context-elevated'
topic = 'fake_topic'
method = 'fake_method'
fake_args = (1, 2, 3)
fake_kwargs = {'fake_kwarg1': 'fake_value1',
'fake_kwarg2': 'fake_value2'}
self.mox.StubOutWithMock(ctxt, 'elevated')
self.mox.StubOutWithMock(self.driver, 'hosts_up')
self.mox.StubOutWithMock(random, 'random')
self.mox.StubOutWithMock(driver, 'cast_to_host')
ctxt.elevated().AndReturn(ctxt_elevated)
self.driver.hosts_up(ctxt_elevated, topic).AndReturn(
['host1', 'host2', 'host3', 'host4'])
random.random().AndReturn(.5)
driver.cast_to_host(ctxt, topic, 'host3', method, **fake_kwargs)
self.mox.ReplayAll()
self.driver.schedule(ctxt, topic, method, *fake_args, **fake_kwargs)
def test_basic_schedule_fallback(self):
ctxt = context.RequestContext('fake', 'fake', False)
ctxt_elevated = 'fake-context-elevated'
topic = 'fake_topic'
method = 'fake_method'
fake_args = (1, 2, 3)
fake_kwargs = {'fake_kwarg1': 'fake_value1',
'fake_kwarg2': 'fake_value2'}
self.mox.StubOutWithMock(ctxt, 'elevated')
self.mox.StubOutWithMock(self.driver, 'hosts_up')
self.mox.StubOutWithMock(random, 'random')
self.mox.StubOutWithMock(driver, 'cast_to_host')
ctxt.elevated().AndReturn(ctxt_elevated)
self.driver.hosts_up(ctxt_elevated, topic).AndReturn(
['host1', 'host2', 'host3', 'host4'])
random.random().AndReturn(.5)
driver.cast_to_host(ctxt, topic, 'host3', method, **fake_kwargs)
self.mox.ReplayAll()
self.driver.schedule(ctxt, topic, method, *fake_args, **fake_kwargs)
def schedule_prep_resize(self, context, request_spec, *args, **kwargs):
"""Select a target for resize."""
host = self._schedule(context, 'compute', request_spec, **kwargs)
driver.cast_to_host(context, 'compute', host, 'prep_resize', **kwargs)
def schedule(self, context, topic, method, *_args, **kwargs):
"""Picks a host that is up at random."""
host = self._schedule(context, topic, None, **kwargs)
driver.cast_to_host(context, topic, host, method, **kwargs)
def schedule_prep_resize(self, context, request_spec, *args, **kwargs):
"""Select a target for resize."""
host = self._schedule(context, 'compute', request_spec, **kwargs)
driver.cast_to_host(context, 'compute', host, 'prep_resize', **kwargs)
def schedule(self, context, topic, method, *_args, **kwargs):
"""Picks a host that is up at random."""
host = self._schedule(context, topic, None, **kwargs)
driver.cast_to_host(context, topic, host, method, **kwargs)
def schedule(self, context, topic, method, *_args, **kwargs):
"""Picks a host that is up at random."""
filter_properties = kwargs.get('filter_properties', {})
host = self._schedule(context, topic, None, filter_properties)
driver.cast_to_host(context, topic, host, method, **kwargs)
def schedule(self, context, topic, method, *_args, **kwargs):
host = self._schedule(context, topic, None, **kwargs)
driver.cast_to_host(context, topic, host, method, **kwargs)
def schedule(self, context, topic, method, *_args, **kwargs):
"""Picks a host that is up at random."""
filter_properties = kwargs.get('filter_properties', {})
host = self._schedule(context, topic, None, filter_properties)
driver.cast_to_host(context, topic, host, method, **kwargs)
