def _delete_residue_staged_delete(self, th, key, dep):
#super small optimization
if dep.nfvo_behaviors.staged_delete:
kp = '/nfvo-rel2:nfvo/nfvo-rel2-esc-sd:staged-delete-esc/'
staged_delete_node = maagic.get_node(th, kp + "delete")
staged_deleted_node = maagic.get_node(th, kp + "deleted")
del staged_delete_node[key]
del staged_deleted_node[key]
def post_iterate(self, state):
context = "system"
added = state[0]
removed = state[1]
with maapi.single_read_trans("", context) as outer:
for key in added:
kp = '/nfvo-rel2:nfvo/nfvo-rel2:vnf-info/nfvo-rel2-esc:esc/nfvo-rel2-esc:vnf-deployment{"%s" "%s" "%s"}' % key
self.log.info("VNFSubscriber, stored kp: %s" % (kp))
dep = maagic.get_node(outer, kp)
username = dep.username
# Switch usercontext to the stored username
with maapi.single_write_trans(username, context) as th:
dep = maagic.get_node(th, kp)
template = ncs.template.Template(dep)
# Write to /nfvo/tailf-esc-internal
template.apply('tailf-etsi-rel2-nfvo-esc-vnf-info-copy')
# Delete any possible residue in staged delete for
# this vnf
self._delete_residue_staged_delete(th, key, dep)
try:
th.apply()
except Exception as e:
self.log.error("Received %s when commiting %s" %
(e, key))
self._handle_commit_error(username, context, key,
e.message)
for key in removed:
svc_kp = '/nfvo-rel2:nfvo/nfvo-rel2-esc:tailf-esc-internal/nfvo-rel2-esc:vnf-deployment{"%s" "%s" "%s"}'\
% key
if outer.exists(svc_kp):
svc = maagic.get_node(outer, svc_kp)
username = str(svc.username)
staged_delete = svc.nfvo_behaviors.staged_delete
else:
# If not service is not found, we may still need to clean up the oper data
username = "******"
staged_delete = False
self.log.info("Delete %s" % (svc_kp))
with maapi.single_write_trans(username, context) as th:
if staged_delete:
self.log.info("Using staged delete for %s/%s/%s" % key)
delete_kp = "/nfvo-rel2:nfvo/nfvo-rel2-esc-sd:staged-delete-esc/nfvo-rel2-esc-sd:delete"
else:
self.log.info("Skipping staged delete for %s/%s/%s" %
key)
delete_kp = "/nfvo-rel2:nfvo/nfvo-rel2-esc-sd:staged-delete-esc/nfvo-rel2-esc-sd:deleted"
delete_list = maagic.get_node(th, delete_kp)
delete = delete_list.create(key)
delete.username = username
th.apply()
def cb_action(self, uinfo, _name, kp, input, output):
result = ''
self.log.info('VXLAN Fabric Verify for {}'.format(kp))
allOk = True
with maapi.single_read_trans(uinfo.username, 'vxlan-verify') as cfg:
svc = maagic.get_node(cfg, kp)
root = ncs.maagic.get_root(cfg)
devs = root.devices.device
numleafs = len(svc.leaves)
numspines = len(svc.spines)
self.log.info('Fabric: {}, spines: {}, leafs: {}'.format(
svc.name, numspines, numleafs))
# Check all spines
for s in svc.spines:
result += checkdev(devs, s.device, 'Spine', numleafs)
for l in svc.leaves:
result += checkdev(devs, l.device, 'Leaf', numspines)
if allOk:
result += 'SUMMMARY: BGP AND OSPF OK\n'
output.ready = True
else:
result += 'SUMMARY: NOT READY\n'
output.ready = False
output.result = result
def is_ha_slave():
with maapi.single_read_trans("", "system", db=ncs.OPERATIONAL) as trans:
if trans.exists("/tfnm:ncs-state/tfnm:ha"):
mode = str(
maagic.get_node(trans, '/tfnm:ncs-state/tfnm:ha/tfnm:mode'))
return (mode == 'slave' or mode == 'relay-slave')
return False
def is_ha_master_or_no_ha():
with maapi.single_read_trans("", "system", db=ncs.OPERATIONAL) as trans:
if trans.exists("/tfnm:ncs-state/tfnm:ha"):
mode = str(
maagic.get_node(trans, '/tfnm:ncs-state/tfnm:ha/tfnm:mode'))
return (mode == 'master')
else:
return True
def post_iterate(self, state):
self.log.info('Staged Delete: RUNNING , state=' + str(state))
context = "system"
with maapi.single_write_trans("", context) as th:
for k in state:
deleted = maagic.get_node(
th,
'/nfvo-rel2:nfvo/nfvo-rel2-esc-sd:staged-delete-esc/nfvo-rel2-esc-sd:deleted'
)
with maapi.single_write_trans(deleted[k].username,
context) as uth:
vnf_svcs = maagic.get_node(
uth, '/nfvo-rel2:nfvo/nfvo-rel2-esc:tailf-esc-internal'
'/nfvo-rel2-esc:vnf-deployment')
# Delete the VNF Service
del vnf_svcs[k]
# Find all devices
dep_res = maagic.get_node(
uth,
'/nfvo-rel2:nfvo/nfvo-rel2:vnf-info/nfvo-rel2-esc:esc/'
'nfvo-rel2-esc:vnf-deployment-result')
if k in dep_res:
for vdu in dep_res[k].vdu:
for vmd in vdu.vm_device:
device_name = vmd.device_name
self.log.info('device_name: %s' %
(device_name))
devices = maagic.get_node(
uth, "/ncs:devices/ncs:device")
del devices[device_name]
# delete the deployment result
del dep_res[k]
uth.apply()
del deleted[k]
th.apply()
def cb_action(self, uinfo, _name, kp, input, output):
# actions have access to the CDB.
with maapi.single_read_trans(uinfo.username, 'pathtrace') as cfg:
svc = maagic.get_node(cfg, kp)
root = ncs.maagic.get_root(cfg)
devs = root.devices.device
msg = "running pathtrace from {} to {}"
self.log.info(msg.format(svc.device, svc.destination))
p = ping(devs, svc.device, svc.destination)
t = traceroute(devs, svc.device, svc.destination)
output.result = p + t
output.ready = True
def cb_action(self, uinfo, name, kp, input, output):
global alive
if not alive:
raise Exception("I'm dead!")
now = str(datetime.datetime.now())
# Make sure we can open a write trans and write something to CDB
with maapi.single_write_trans(uinfo.username, "alive") as th:
k8s = maagic.get_node(th, "/lr-test:k8s")
k8s.last_live_check = now
th.apply()
output.result = now
def cb_post_modification(self, tctx, op, kp, root, proplist):
self.log.info('Service postmod(service=', kp, ')')
self.log.info('Service postmod(op=', str(op), ')')
"""
OP = 1: 'CREATED', 2: 'DELETED', 3: 'MODIFIED', 4: 'VALUE_SET', 5: 'MOVED_AFTER', 6: 'ATTR_SET'
"""
if op != 2:
service = maagic.get_node(maagic.get_trans(root), kp)
restore_point = root.top_l3vpn__l3vpn_restore_points.create(
service.name + '-' +
datetime.now().strftime("%Y-%m-%d_%H:%M:%S"))
t = maagic.get_trans(root)
t.copy_tree(service._path, restore_point._path)
def post_iterate(self, state):
context = 'system'
with maapi.single_read_trans('', context) as ro_th:
ro_root = maagic.get_root(ro_th)
for kp in state:
notif = maagic.get_node(ro_th, kp)
if not notif.data.escEvent:
continue
event = notif.data.escEvent
username = _get_username(ro_root, event)
vnfm_name = ncs.maagic.cd(notif, '../../../ncs:name')
if (username and notif.subscription
== f'cisco-etsi-nfvo-{vnfm_name}'):
# Switch user context
with maapi.single_write_trans(username, context) as th:
self._handle_notif(notif, th)
th.apply()
def post_iterate(self, state):
context = "system"
with maapi.single_read_trans("", context) as ro_th:
ro_root = maagic.get_root(ro_th)
for notifInfo in state:
notif = maagic.get_node(ro_th, notifInfo.kp)
if not notif.data.escEvent:
continue
event = notif.data.escEvent
username = self._get_username(ro_root, notifInfo.esc, event)
if username and notif.subscription == "tailf_nfvo":
# Switch user context
with maapi.single_write_trans(username, context) as th:
self._vnf_info_svcs_to_redeploy = set()
self._handle_notif(notifInfo.esc, notif, th)
th.apply()
if self._vnf_info_svcs_to_redeploy:
with maapi.single_read_trans(username, context) as th:
self._redeploy_services(th)
def _redeploy_services(self, th):
for svc in self._vnf_info_svcs_to_redeploy:
self.log.info("Redeploying '%s'" % (svc))
redep = maagic.get_node(
th, "%s/nfvo-rel2-esc:reactive-re-deploy" % (svc))
redep()