def update_lb(conf, tenant_id, lb_id, lb_body):
lb_ref = db_api.loadbalancer_get(conf, lb_id, tenant_id=tenant_id)
old_lb_ref = copy.deepcopy(lb_ref)
db_api.pack_update(lb_ref, lb_body)
lb_ref = db_api.loadbalancer_update(conf, lb_id, lb_ref)
if (lb_ref['algorithm'] == old_lb_ref['algorithm'] and
lb_ref['protocol'] == old_lb_ref['protocol']):
LOG.debug("In LB %r algorithm and protocol have not changed, "
"nothing to do on the device %r.",
lb_ref['id'], lb_ref['device_id'])
return
sf_ref = db_api.serverfarm_get_all_by_lb_id(conf, lb_ref['id'])[0]
if lb_ref['algorithm'] != old_lb_ref['algorithm']:
predictor_ref = db_api.predictor_get_by_sf_id(conf, sf_ref['id'])
db_api.predictor_update(conf, predictor_ref['id'],
{'type': lb_ref['algorithm']})
vips = db_api.virtualserver_get_all_by_sf_id(conf, sf_ref['id'])
if lb_ref['protocol'] != old_lb_ref['protocol']:
vip_update_values = {'protocol': lb_ref['protocol']}
for vip in vips:
db_api.pack_update(vip, vip_update_values)
db_api.virtualserver_update(conf, vip['id'], vip)
servers = db_api.server_get_all_by_sf_id(conf, sf_ref['id'])
probes = db_api.probe_get_all_by_sf_id(conf, sf_ref['id'])
stickies = db_api.sticky_get_all_by_sf_id(conf, sf_ref['id'])
device_ref = scheduler.reschedule(conf, lb_ref)
if device_ref['id'] != lb_ref['device_id']:
from_driver = drivers.get_device_driver(conf, lb_ref['device_id'])
to_driver = drivers.get_device_driver(conf, device_ref['id'])
lb_ref = db_api.loadbalancer_update(conf, lb_ref['id'],
{'device_id': device_ref['id']})
else:
from_driver = drivers.get_device_driver(conf, device_ref['id'])
to_driver = from_driver
with from_driver.request_context() as ctx:
try:
commands.delete_loadbalancer(ctx, sf_ref, vips, servers, probes,
stickies)
except Exception:
with utils.save_and_reraise_exception():
db_api.loadbalancer_update(conf, lb_ref['id'],
{'status': lb_status.ERROR})
with to_driver.request_context() as ctx:
try:
commands.create_loadbalancer(ctx, sf_ref, vips, servers, probes,
stickies)
except Exception:
with utils.save_and_reraise_exception():
db_api.loadbalancer_update(conf, lb_ref['id'],
{'status': lb_status.ERROR})
db_api.loadbalancer_update(conf, lb_ref['id'],
{'status': lb_status.ACTIVE})
def test_predictor_update(self):
values = get_fake_predictor("1")
predictor_ref = db_api.predictor_create(self.conf, values)
update = {"type": "LEASTCONNECTIONS", "extra": {"extrafield": "extravalue"}}
predictor_ref = db_api.predictor_update(self.conf, predictor_ref["id"], update)
predictor = dict(predictor_ref.iteritems())
values.update(update)
self.assertIsNotNone(predictor["id"])
values["id"] = predictor["id"]
self.assertEqual(predictor, values)
def test_predictor_update(self):
values = get_fake_predictor('1')
predictor_ref = db_api.predictor_create(self.conf, values)
update = {'type': 'LEASTCONNECTIONS',
'extra': {'extrafield': 'extravalue'}}
predictor_ref = db_api.predictor_update(self.conf, predictor_ref['id'],
update)
predictor = dict(predictor_ref.iteritems())
values.update(update)
self.assertIsNotNone(predictor['id'])
values['id'] = predictor['id']
self.assertEqual(predictor, values)
def savetoDB(self):
try:
lb_ref = db_api.loadbalancer_update(self.conf, self.lb['id'],
self.lb)
except exception.LoadBalancerNotFound:
lb_ref = db_api.loadbalancer_create(self.conf, self.lb)
self.sf['lb_id'] = lb_ref['id']
try:
sf_ref = db_api.serverfarm_update(self.conf, self.sf['id'],
self.sf)
except exception.ServerFarmNotFound:
sf_ref = db_api.serverfarm_create(self.conf, self.sf)
self.sf._predictor['sf_id'] = sf_ref['id']
try:
db_api.predictor_update(self.conf, self.sf._predictor['id'],
self.sf._predictor)
except exception.PredictorNotFound:
db_api.predictor_create(self.conf, self.sf._predictor)
stickies = self.sf._sticky
vips = []
self.sf = sf_ref
self.sf._rservers = []
self.sf._probes = []
self.sf._sticky = []
for rs in self.rs:
rs['sf_id'] = sf_ref['id']
try:
rs_ref = db_api.server_update(self.conf, rs['id'], rs)
except exception.ServerNotFound:
rs_ref = db_api.server_create(self.conf, rs)
self.sf._rservers.append(rs_ref)
for pr in self.probes:
pr['sf_id'] = sf_ref['id']
try:
pr_ref = db_api.probe_update(self.conf, pr['id'], pr)
except exception.ProbeNotFound:
pr_ref = db_api.probe_create(self.conf, pr)
self.sf._probes.append(pr_ref)
for vip in self.vips:
vip['sf_id'] = sf_ref['id']
vip['lb_id'] = lb_ref['id']
try:
vip_ref = db_api.virtualserver_update(self.conf, vip['id'],
vip)
except exception.VirtualServerNotFound:
vip_ref = db_api.virtualserver_create(self.conf, vip)
vips.append(vip_ref)
for st in stickies:
st['sf_id'] = sf_ref['id']
try:
st_ref = db_api.sticky_update(self.conf, st['id'], st)
except exception.StickyNotFound:
st_ref = db_api.sticky_create(self.conf, st)
self.sf._sticky.append(st_ref)
self.rs = self.sf._rservers
self.probes = self.sf._probes
self.vips = vips