class FilterModule(object):
critical_routing_bridging_roles = {
"CRB-MCAST-Gateway",
"DC-Gateway",
"DCI-Gateway",
}
@staticmethod
def _validate_job_ctx(job_ctx):
if not job_ctx.get('fabric_fqname'):
raise ValueError('Invalid job_ctx: missing fabric_fqname')
job_input = job_ctx.get('job_input')
if not job_input:
raise ValueError('Invalid job_ctx: missing job_input')
if not job_input.get('fabric_uuid'):
raise ValueError('Invalid job_ctx: missing fabric_uuid')
return job_input
# end _validate_job_ctx
def filters(self):
return {
'hitless_upgrade_plan': self.get_hitless_upgrade_plan,
'hitless_next_batch': self.get_next_batch,
'hitless_all_devices': self.get_all_devices,
'hitless_device_info': self.get_device_info,
'hitless_failure_update': self.hitless_failure_update,
'validate_hitless_critical_roles':
self.validate_critical_roles_for_hitless,
'mm_validate': self.validate_critical_roles_for_mm
}
# end filters
# Return updated list
def hitless_failure_update(self, job_ctx, failed_list, pr_name):
failed_list.append(pr_name)
return failed_list
# Wrapper to call main routine
def get_hitless_upgrade_plan(self, job_ctx, image_upgrade_list):
try:
FilterLog.instance("HitlessUpgradeFilter")
self.job_input = FilterModule._validate_job_ctx(job_ctx)
self.fabric_uuid = self.job_input['fabric_uuid']
self.vncapi = JobVncApi.vnc_init(job_ctx)
self.job_ctx = job_ctx
self.ja = JobAnnotations(self.vncapi)
self.advanced_parameters = self._get_advanced_params()
self._cache_job_input()
self.batch_limit = self.advanced_parameters.get(
'bulk_device_upgrade_count')
self.image_upgrade_list = image_upgrade_list
upgrade_plan = self._get_hitless_upgrade_plan()
return upgrade_plan
except Exception as ex:
errmsg = "Unexpected error: %s\n%s" % (str(ex),
traceback.format_exc())
_task_error_log(errmsg)
return {
'status': 'failure',
'error_msg': errmsg,
}
# end get_hitless_upgrade_plan
# Get any advanced parameters from job input to override defaults
def _get_advanced_params(self):
job_template_fqname = self.job_ctx.get('job_template_fqname')
def_json = self.ja.generate_default_json(job_template_fqname)
adv_params = def_json.get("advanced_parameters")
job_input_adv_params = self.job_input.get('advanced_parameters', {})
adv_params = self.ja.dict_update(adv_params, job_input_adv_params)
return adv_params
# end _get_advanced_params
# Store the job input on the fabric object for UI to retrieve later
def _cache_job_input(self):
job_input = copy.deepcopy(self.job_input)
job_input.update({"advanced_parameters": self.advanced_parameters})
self.ja.cache_job_input(self.fabric_uuid,
self.job_ctx.get('job_template_fqname')[-1],
job_input)
# end _cache_job_input
# Read from Node Profile to determine whether the upgrade is hitless
def _is_hitless_upgrade(self, device_obj):
node_profile_refs = device_obj.get_node_profile_refs()
if node_profile_refs:
np_uuid = node_profile_refs[0].get('uuid')
node_profile_obj = self.vncapi.node_profile_read(id=np_uuid)
is_hitless = node_profile_obj.get_node_profile_hitless_upgrade()
return is_hitless
return True
# end _is_hitless_upgrade
# Main routine to generate an upgrade plan
def _get_hitless_upgrade_plan(self):
self.device_table, self.skipped_device_table = \
self._generate_device_table()
self.role_device_groups = self._generate_role_device_groups()
self.vpg_table = self._generate_vpg_table()
self._generate_buddy_lists()
self.batches = self._generate_batches()
self.report = self._generate_report()
self.results = self._generate_results()
upgrade_plan = {
'image_upgrade_list': self.image_upgrade_list,
'advanced_parameters': self.advanced_parameters,
'device_table': self.device_table,
'device_count': len(self.device_table),
'skipped_device_table': self.skipped_device_table,
'role_device_groups': self.role_device_groups,
'vpg_table': self.vpg_table,
'batches': self.batches,
'report': self.report,
'results': self.results,
'status': "success"
}
return upgrade_plan
# end _get_hitless_upgrade_plan
# generate a table of device information
def _generate_device_table(self):
device_table = {}
skipped_device_table = {}
for image_entry in self.image_upgrade_list:
image_uuid = image_entry.get('image_uuid')
image_obj = self.vncapi.device_image_read(id=image_uuid)
device_list = image_entry.get('device_list')
for device_uuid in device_list:
device_obj = self.vncapi.physical_router_read(id=device_uuid)
routing_bridging_roles = device_obj.routing_bridging_roles
if not routing_bridging_roles:
raise ValueError("Cannot find routing-bridging roles")
rb_roles = routing_bridging_roles.get_rb_roles()
is_hitless_upgrade = self._is_hitless_upgrade(device_obj)
device_info = {
"basic": {
"device_fqname":
device_obj.fq_name,
"device_vendor":
device_obj.physical_router_vendor_name,
"device_family":
device_obj.physical_router_device_family,
"device_product":
device_obj.physical_router_product_name,
"device_serial_number":
device_obj.physical_router_serial_number,
"device_management_ip":
device_obj.physical_router_management_ip,
"device_username":
device_obj.physical_router_user_credentials.username,
"device_password":
self._get_password(device_obj),
"device_image_uuid":
image_uuid,
"device_hitless_upgrade":
is_hitless_upgrade
},
'image_family':
image_obj.device_image_device_family,
'image_version':
image_obj.device_image_os_version,
'current_image_version':
device_obj.physical_router_os_version,
'name':
device_obj.fq_name[-1],
'uuid':
device_uuid,
'physical_role':
device_obj.physical_router_role,
'rb_roles':
rb_roles,
'role':
self._determine_role(device_obj.physical_router_role,
rb_roles),
'err_msgs': [],
'vpg_info': {
"vpg_list": [],
"buddies": []
},
'target_multihomed_interface': []
}
skip, reason = self._check_skip_device_upgrade(device_info)
if skip:
if reason:
device_info['skip_reason'] = reason
skipped_device_table[device_uuid] = device_info
else:
device_table[device_uuid] = device_info
return device_table, skipped_device_table
# end _generate_device_table
# generate a simple table of roles with their corresponding devices
def _generate_role_device_groups(self):
# Group devices based on role. Use dict keyed by role name
role_device_groups = {}
for device_uuid, device_info in list(self.device_table.items()):
role = device_info['role']
if role not in role_device_groups:
role_device_groups[role] = []
role_device_groups[role].append(device_uuid)
# Sort lists
for role, group in list(role_device_groups.items()):
group.sort()
return role_device_groups
# end _generate_role_device_groups
# generate a table keyed by virtual port group uuid containing member
# devices and their physical interfaces
def _generate_vpg_table(self):
vpg_table = {}
vpg_refs = self.vncapi.virtual_port_groups_list(
parent_id=self.fabric_uuid).get('virtual-port-groups', [])
for vpg_ref in vpg_refs:
vpg_uuid = vpg_ref.get('uuid')
vpg_table[vpg_uuid] = {"device_table": {}}
vpg_dev_table = vpg_table[vpg_uuid]['device_table']
vpg_obj = self.vncapi.virtual_port_group_read(id=vpg_uuid)
vpg_table[vpg_uuid]['name'] = vpg_obj.fq_name[2]
pi_refs = vpg_obj.get_physical_interface_refs() or []
for pi_ref in pi_refs:
pi_uuid = pi_ref.get('uuid')
pi_obj = self.vncapi.physical_interface_read(id=pi_uuid)
device_uuid = pi_obj.parent_uuid
if device_uuid not in vpg_dev_table:
vpg_dev_table[device_uuid] = []
# If this is one of the devices to upgrade, append this
# vpg to the vpg_list for use later
if device_uuid in self.device_table:
device_info = self.device_table[device_uuid]
device_info['vpg_info']['vpg_list'].append(vpg_uuid)
pi_entry = {"fq_name": pi_obj.fq_name, "uuid": pi_obj.uuid}
vpg_dev_table[device_uuid].append(pi_entry)
# Add interface name to multihomed list
if device_uuid in self.device_table:
device_info = self.device_table[device_uuid]
if_name = pi_obj.fq_name[2]
if if_name not in \
device_info['target_multihomed_interface']:
device_info['target_multihomed_interface'].\
append(if_name)
return vpg_table
# end _generate_vpg_table
# For each device, generate a list of devices which cannot be upgraded at
# the same time because they are multi-homed to the same BMS
def _generate_buddy_lists(self):
for device_uuid, device_info in list(self.device_table.items()):
vpg_info = self.device_table[device_uuid]['vpg_info']
for vpg_uuid in vpg_info['vpg_list']:
vpg_entry = self.vpg_table[vpg_uuid]
vpg_dev_table = vpg_entry['device_table']
for vpg_dev_uuid, pi_list in list(vpg_dev_table.items()):
if vpg_dev_uuid not in vpg_info['buddies'] and \
vpg_dev_uuid != device_uuid:
buddy_entry = self._get_buddy_entry(
vpg_dev_uuid, pi_list)
vpg_info['buddies'].append(buddy_entry)
# end _generate_buddy_lists
# Create entry for peer, including ip_addr, username, password
def _get_buddy_entry(self, device_uuid, pi_list):
if device_uuid in self.device_table or \
device_uuid in self.skipped_device_table:
if device_uuid in self.device_table:
device_info = self.device_table[device_uuid]
else:
device_info = self.skipped_device_table[device_uuid]
fq_name = device_info['basic']['device_fqname']
mgmt_ip = device_info['basic']['device_management_ip']
username = device_info['basic']['device_username']
password = device_info['basic']['device_password']
vendor = device_info['basic']['device_vendor']
multihomed_interface_list = \
device_info['target_multihomed_interface']
else:
device_obj = self.vncapi.physical_router_read(id=device_uuid)
fq_name = device_obj.fq_name
mgmt_ip = device_obj.physical_router_management_ip
username = device_obj.physical_router_user_credentials.username
password = self._get_password(device_obj)
vendor = device_obj.physical_router_vendor_name
multihomed_interface_list = \
self._get_multihomed_interface_list(pi_list)
return {
"uuid": device_uuid,
"fq_name": fq_name,
"name": fq_name[-1],
"mgmt_ip": mgmt_ip,
"username": username,
"password": password,
"vendor": vendor,
"multihomed_interface_list": multihomed_interface_list
}
# end _get_buddy_entry
# Get list of multihomed interface names
def _get_multihomed_interface_list(self, pi_list):
if_list = []
for pi_entry in pi_list:
if_name = pi_entry['fq_name'][-1]
if if_name not in if_list:
if_list.append(if_name)
return if_list
# end _get_multihomed_interface_list
def _device_value_based_on_number_of_critical_roles(self, device_uuid):
rb_roles = self.device_table[device_uuid].get('rb_roles')
how_many_critical_roles = 0
for rb_role in rb_roles:
if rb_role in FilterModule.critical_routing_bridging_roles:
how_many_critical_roles += 1
return -how_many_critical_roles
# Creates a dict: name of critical routing bridging role -> number of
# occurences in all devices.
def _calculate_devices_with_critical_routing_bridging_roles(self):
self.critical_routing_bridging_roles_count = {}
for critical_routing_bridging_role in\
FilterModule.critical_routing_bridging_roles:
self.critical_routing_bridging_roles_count[
critical_routing_bridging_role] = 0
for device_uuid, device_info in list(self.device_table.items()):
for routing_bridging_role in device_info.get('rb_roles'):
if routing_bridging_role in\
FilterModule.critical_routing_bridging_roles:
self.critical_routing_bridging_roles_count[
routing_bridging_role] += 1
# Assumes that critical_routing_bridging_roles_count has been initialized.
def _calc_max_number_of_repr_of_critical_rb_roles_per_batch(self):
self.max_number_of_repr_of_critical_rb_roles_per_batch = {}
for role_name, number_of_occurences \
in list(self.critical_routing_bridging_roles_count.items()):
self.max_number_of_repr_of_critical_rb_roles_per_batch[role_name] \
= number_of_occurences / 2 + number_of_occurences % 2
def _calculate_max_number_of_spines_updated_in_batch(self):
number_of_spines = 0
for device_uuid, device_info in list(self.device_table.items()):
if device_info.get('physical_role') == 'spine':
number_of_spines += 1
self.max_number_of_spines_updated_in_batch = \
number_of_spines / 2 + number_of_spines % 2
def _calc_number_of_repr_of_critical_rb_roles_in_batch(self, batch):
critical_routing_bridging_roles_count = {}
for critical_routing_bridging_role in\
FilterModule.critical_routing_bridging_roles:
critical_routing_bridging_roles_count[
critical_routing_bridging_role] = 0
for device_uuid in batch['device_list']:
rb_roles = self.device_table[device_uuid].get('rb_roles')
for rb_role in rb_roles:
if rb_role in FilterModule.critical_routing_bridging_roles:
critical_routing_bridging_roles_count[rb_role] += 1
return critical_routing_bridging_roles_count
# If correct batch extended with device_uuid is still correct in regards
# to vpg buddies, return True. Otherwise return False.
def _check_vpg_buddies_in_batch(self, device_uuid, batch):
# If this device shares a multi-homed vpg interface
# with another device in this batch, return False.
buddies = self._get_vpg_buddies(device_uuid)
for buddy in buddies:
if buddy['uuid'] in batch['device_list']:
return False
return True
# If correct batch extended with device_uuid is still correct in regards
# to number of spines in batch, return True. Otherwise return False.
def _check_number_of_spines_in_batch(self, device_uuid, batch):
device_info = self.device_table[device_uuid]
physical_role = device_info.get('physical_role')
if "spine" in physical_role:
spines_in_batch = 0
for device in batch['device_list']:
device_role = self.device_table[device].get('physical_role')
if "spine" in device_role:
spines_in_batch += 1
if (spines_in_batch + 1 >
self.max_number_of_spines_updated_in_batch):
return False
return True
# If correct batch extended with device_uuid is still correct in regards
# to number of critical roles, return True. Otherwise return False.
def _check_number_of_critical_rb_roles_in_batch(self, device_uuid, batch):
device_info = self.device_table[device_uuid]
rb_roles = device_info.get('rb_roles')
critical_rb_roles_in_device = list(
FilterModule.critical_routing_bridging_roles & set(rb_roles))
if critical_rb_roles_in_device:
critical_rb_roles_in_batch_count = self.\
_calc_number_of_repr_of_critical_rb_roles_in_batch(batch)
for rb_role in critical_rb_roles_in_device:
if critical_rb_roles_in_batch_count[rb_role] + 1 > self.\
max_number_of_repr_of_critical_rb_roles_per_batch[
rb_role]:
return False
return True
# It assumes that batch is correct and is not empty.
def _check_if_device_can_be_added_to_the_batch(self, device_uuid, batch):
return \
self._check_vpg_buddies_in_batch(device_uuid, batch) and \
self._check_number_of_spines_in_batch(device_uuid, batch) and \
self._check_number_of_critical_rb_roles_in_batch(
device_uuid, batch)
def _add_batch_index_to_device_info(self, batches):
for batch in batches:
for device_uuid in batch['device_list']:
self.device_table[device_uuid]['batch_index'] = batches.index(
batch)
def _add_device_to_the_batch(self, device_uuid, batch_load_list, batches):
batch = {}
loaded = False
batch_full = False
device_name = self.device_table[device_uuid].get('name')
# Try to add device into an existing batch
for batch in batch_load_list:
safe = self._check_if_device_can_be_added_to_the_batch(
device_uuid, batch)
if safe:
batch['device_list'].append(device_uuid)
batch['device_names'].append(device_name)
loaded = True
# if the batch is full, move it to the master list
if len(batch['device_list']) >= self.batch_limit:
batch_full = True
break
# if not loaded into a batch, generate a new batch
if not loaded:
idx = len(batch_load_list) + len(batches) + 1
batch = {
'name': "Batch " + str(idx),
'device_list': [device_uuid],
'device_names': [device_name]
}
batch_load_list.append(batch)
# if the batch is full, move it to the master list
if len(batch['device_list']) >= self.batch_limit:
batch_full = True
# if batch full, move from load list to master list
if batch_full:
batch_load_list.remove(batch)
batches.append(batch)
def _assign_devices_to_batches(self):
batches = []
for role_group in ordered_role_groups:
# Batching is per-role-group (constraint 1).
# TODO: Each role group contains just one role. So why do we need
# role groups?
batch_load_list = []
for role in role_group:
device_list = self.role_device_groups.get(role, [])
for device_uuid in device_list:
self._add_device_to_the_batch(device_uuid, batch_load_list,
batches)
# move remaining batches from the load list to the master list
for batch in batch_load_list:
batches.append(batch)
return batches
# Generate batches of devices that can be updated at once.
#
# Constraints:
# 1. Two devices with the different physical_router_role can not be in the
# same batch.
# 2. More than half (half + 0.5 for odd number) of spines can not be in the
# same batch.
# 3. For each routing_bridging_role in {"CRB-MCAST-Gateway",
# "DC-Gateway", "DCI-Gateway"} no more than half (half + 0.5 for odd
# number) of devices with that role can be in the same batch.
# 4. Two devices that share VPG can not be in the same batch.
def _generate_batches(self):
self._calculate_devices_with_critical_routing_bridging_roles()
self._calc_max_number_of_repr_of_critical_rb_roles_per_batch()
self._calculate_max_number_of_spines_updated_in_batch()
batches = self._assign_devices_to_batches()
self._add_batch_index_to_device_info(batches)
return batches
def _spill_device_details(self, device_name, device_info):
details = ""
basic = device_info['basic']
vpg_info = device_info['vpg_info']
batch_index = device_info.get('batch_index')
batch_name = self.batches[batch_index]['name'] \
if batch_index is not None else "N/A"
details += "\n - {}\n".format(device_name)
details += \
" uuid : {}\n"\
" vendor : {}\n"\
" family : {}\n"\
" product : {}\n"\
" serial number : {}\n"\
" management ip : {}\n"\
" username : {}\n"\
" password : {}\n"\
" new image version: {}\n"\
" current image version: {}\n"\
" image family : {}\n"\
" physical role : {}\n"\
" routing bridging roles: {}\n"\
" role : {}\n"\
" vpg list : {}\n"\
" vpg peers : {}\n"\
" batch : {}\n"\
" is hitless? : {}\n"\
.format(
device_info.get('uuid'),
basic.get('device_vendor'),
basic.get('device_family'),
basic.get('device_product'),
basic.get('device_serial_number'),
basic.get('device_management_ip'),
basic.get('device_username'),
"** hidden **", # basic.get('device_password'),
device_info.get('image_version'),
device_info.get('current_image_version'),
device_info.get('image_family'),
device_info.get('physical_role'),
device_info.get('rb_roles'),
device_info.get('role'),
vpg_info.get('vpg_list'),
[buddy['uuid'] for buddy in vpg_info.get('buddies')],
batch_name,
basic.get('device_hitless_upgrade'),
)
return details
def _generate_report(self):
report = ""
# generate devices dict with key of device name
devices = {}
for device_uuid, device_info in list(self.device_table.items()):
device_name = self.device_table[device_uuid]['name']
devices[device_name] = self.device_table[device_uuid]
# generate skipped devices dict with key of device name
sdevices = {}
for device_uuid, device_info in \
list(self.skipped_device_table.items()):
device_name = self.skipped_device_table[device_uuid]['name']
sdevices[device_name] = self.skipped_device_table[device_uuid]
# First dump summary
report += "\n********** Summary *************\n"
# Dump summary of batches
total_time = str(
timedelta(minutes=IMAGE_UPGRADE_DURATION * len(self.batches)))
if len(self.batches) > 0:
report += "\nTotal estimated " \
"duration is {}.\n".format(total_time)
report += "\nNote that this time " \
"estimate may vary depending on " \
"network speeds and system capabilities.\n"
report += "The following batches " \
"of devices will be upgraded in the order listed:\n"
for batch in self.batches:
report += "\n{}:\n".format(batch.get('name'))
for device_name in batch.get('device_names', []):
device_info = devices[device_name]
current_version = \
device_info['current_image_version'] or ""
new_version = device_info['image_version']
hitless_upgrade = \
device_info['basic']['device_hitless_upgrade']
is_hitless = "" if hitless_upgrade else "(not hitless)"
workflow_info = self._check_for_downgrade(device_info)
report += " {} {} --> {} {}{}\n".format(
device_name, current_version, new_version, is_hitless,
workflow_info)
else:
report += "\n NO DEVICES TO UPGRADE!"
report += "\n"
# Dump summary of skipped devices
if len(sdevices) > 0:
report += "\nThe following devices will not be upgraded " \
"for the reasons listed:\n"
for device_name, device_info in sorted(sdevices.items()):
report += "\n {} ({})".format(
device_name,
device_info.get('skip_reason', "unknown reason"))
report += "\n NOTE: \n Incompatible device-image platform with " \
"the same versions could also lead to a device being " \
"skipped for image upgrade. " \
"Please recheck the platform compatibility " \
"for the above skipped devices."
# Now dump the details
report += "\n******** Details ************\n"
# Dump device info
if len(devices) > 0:
report += "\nDetailed information for the " \
"devices to be upgraded is listed below:\n"
# Spill out sorted list
for device_name, device_info in sorted(devices.items()):
details = self._spill_device_details(device_name, device_info)
report += details
# Dump skipped device info
if len(sdevices) > 0:
report += "\nDetailed information for " \
"the devices to be skipped is listed below:\n"
# Spill out sorted list
for device_name, device_info in sorted(sdevices.items()):
details = self._spill_device_details(device_name, device_info)
report += details
return report
def _generate_results(self):
return self.report
# Get the current and next batch off the batch list and return
def get_next_batch(self, job_ctx, upgrade_plan, device_uuid):
try:
return self._get_next_batch(upgrade_plan, device_uuid)
except Exception as ex:
errmsg = "Unexpected error attempting to " \
"get next batch: %s\n%s" %\
(str(ex), traceback.format_exc())
_task_error_log(errmsg)
return {
'status': 'failure',
'error_msg': errmsg,
}
# end get_next_batch
# Get the current and next batch off the batch list and return
def _get_next_batch(self, upgrade_plan, device_uuid):
c_idx, n_idx = None, None
current_batch, next_batch = {}, {}
batch_info = {
'current': {
'batch_name': None,
'batch_index': None,
'batch_devices': {}
},
'next': {
'batch_name': None,
'batch_index': None,
'batch_devices': {}
},
'status': "success"
}
if device_uuid:
device_info = upgrade_plan['device_table'].get(device_uuid)
if device_info:
c_idx = device_info['batch_index']
n_idx = c_idx + 1
else:
return batch_info
else:
n_idx = 0
if c_idx is not None:
batch = upgrade_plan['batches'][c_idx]
for device_uuid in batch['device_list']:
current_batch[device_uuid] = \
upgrade_plan['device_table'][device_uuid]['basic']
batch_info['current'] = {
'batch_name': batch['name'],
'batch_index': c_idx,
'batch_devices': current_batch
}
if n_idx < len(upgrade_plan['batches']):
batch = upgrade_plan['batches'][n_idx]
for device_uuid in batch['device_list']:
next_batch[device_uuid] = \
upgrade_plan['device_table'][device_uuid]['basic']
batch_info['next'] = {
'batch_name': batch['name'],
'batch_index': n_idx,
'batch_devices': next_batch
}
return batch_info
# end _get_next_batch
# Get list of all devices for use in test_run
def get_all_devices(self, job_ctx, upgrade_plan):
try:
return self._get_all_devices(upgrade_plan)
except Exception as ex:
errmsg = "Unexpected error attempting " \
"to get all devices: %s\n%s" % \
(str(ex), traceback.format_exc())
_task_error_log(errmsg)
return {
'status': 'failure',
'error_msg': errmsg,
}
# end get_all_devices
# Get list of all devices for use in test_run
def _get_all_devices(self, upgrade_plan):
all_devices = {}
device_table = upgrade_plan['device_table']
batch_info = {
'current': {
'batch_name': None,
'batch_index': None,
'batch_devices': {}
},
'next': {
'batch_name': 'all',
'batch_index': 0,
'batch_devices': {}
},
'status': "success"
}
for device_uuid, device_info in list(device_table.items()):
all_devices[device_uuid] = device_table[device_uuid]['basic']
batch_info['next']['batch_devices'] = all_devices
return batch_info
# end get_all_devices
# Get info for a single device
def get_device_info(self, job_ctx, device_uuid):
try:
FilterLog.instance("HitlessUpgradeFilter")
self.job_input = FilterModule._validate_job_ctx(job_ctx)
self.fabric_uuid = self.job_input['fabric_uuid']
self.vncapi = JobVncApi.vnc_init(job_ctx)
self.job_ctx = job_ctx
self.ja = JobAnnotations(self.vncapi)
self.advanced_parameters = self._get_advanced_params()
self._cache_job_input()
self.device_uuid = device_uuid
device_info = self._get_device_info()
return device_info
except Exception as ex:
errmsg = "Unexpected error getting device info: %s\n%s" % (
str(ex), traceback.format_exc())
_task_error_log(errmsg)
return {
'status': 'failure',
'error_msg': errmsg,
}
# end get_device_info
# Get device info used for maintenance mode activate
def _get_device_info(self):
self.device_table = self._generate_device_entry()
self.skipped_device_table = {}
self.vpg_table = self._generate_vpg_table()
self._generate_buddy_lists()
device_info = {
'advanced_parameters': self.advanced_parameters,
'device_table': self.device_table,
'vpg_table': self.vpg_table,
'status': "success"
}
return device_info
# end _get_device_info
# Validate whether fabric will be hitless when the given list of
# devices go into maintenance mode
def validate_critical_roles_for_mm(self, job_ctx, device_uuid_list):
try:
FilterLog.instance("HitlessUpgradeFilter")
self.job_input = FilterModule._validate_job_ctx(job_ctx)
self.fabric_uuid = self.job_input['fabric_uuid']
self.vncapi = JobVncApi.vnc_init(job_ctx)
self.job_ctx = job_ctx
self.ja = JobAnnotations(self.vncapi)
self.advanced_parameters = self._get_advanced_params()
self._cache_job_input()
self.device_uuid_list = device_uuid_list
results = self._validate_critical_roles_for_mm()
return results
except Exception as ex:
errmsg = "Unexpected error validating: %s\n%s" % (
str(ex), traceback.format_exc())
_task_error_log(errmsg)
return {
'status': 'failure',
'error_msg': errmsg,
}
def _get_critical_device_list(self):
critical_dev_list = []
selected_dev_list = []
dev_list = self.vncapi.physical_routers_list(fields=[
'fabric_refs', 'physical_role_refs', 'routing_bridging_roles',
'physical_router_managed_state'
]).get('physical-routers', [])
# Search through all devices in fabric and create a critical device
# list of devices which are active and performing critical roles
for dev in dev_list:
# the devices that are selected for upgrade
if dev['uuid'] in self.device_uuid_list:
selected_dev_list.append(dev)
continue
# exclude devices not in the same fabric
fabric_refs = dev.get('fabric_refs')
if not fabric_refs:
continue
fabric_uuid = fabric_refs[0]['uuid']
if fabric_uuid != self.fabric_uuid:
continue
# devices not selected for upgrade but are in mm
managed_state = dev.get('physical_router_managed_state')
if managed_state and managed_state != 'active':
continue
# if spine ---> then critical
physical_role_refs = dev.get('physical_role_refs')
if not physical_role_refs:
continue
physical_role = physical_role_refs[0]['to'][-1]
if physical_role == 'spine':
critical_dev_list.append(dev)
continue
# if a leaf with critical role ---> border leaf
routing_bridging_roles = dev.get('routing_bridging_roles')
if routing_bridging_roles:
rb_roles = routing_bridging_roles['rb_roles']
else:
rb_roles = []
for rb_role in rb_roles:
if rb_role in FilterModule.critical_routing_bridging_roles:
critical_dev_list.append(dev)
break
return selected_dev_list, critical_dev_list
# end _get_critical_device_list
def validate_critical_roles_for_hitless(self, job_ctx, image_upgrade_list):
try:
FilterLog.instance("HitlessUpgradeFilter")
self.job_input = FilterModule._validate_job_ctx(job_ctx)
self.fabric_uuid = self.job_input['fabric_uuid']
self.vncapi = JobVncApi.vnc_init(job_ctx)
self.job_ctx = job_ctx
self.ja = JobAnnotations(self.vncapi)
self.advanced_parameters = self._get_advanced_params()
self._cache_job_input()
self.image_upgrade_list = image_upgrade_list
self.device_uuid_list = []
for image_entry in self.image_upgrade_list:
device_list = image_entry.get('device_list')
image_uuid = image_entry.get('image_uuid')
image_obj = self.vncapi.device_image_read(id=image_uuid)
for device_uuid in device_list:
device_obj = self.vncapi.physical_router_read(
id=device_uuid)
if image_obj.device_image_os_version !=\
device_obj.physical_router_os_version:
self.device_uuid_list.append(device_uuid)
results = self._validate_critical_roles_for_hitless_upgrade()
return results
except Exception as ex:
errmsg = "Unexpected error validating: %s\n%s" % (
str(ex), traceback.format_exc())
_task_error_log(errmsg)
return {
'status': 'failure',
'error_msg': errmsg,
}
# end validate_critical_roles_for_hitless
def _validate_critical_roles_for_hitless_upgrade(self):
error_msg = ''
upgrade_dev_list, critical_dev_list = self._get_critical_device_list()
critical_routing_bridging_roles_count = {}
for critical_routing_bridging_role in\
FilterModule.critical_routing_bridging_roles:
critical_routing_bridging_roles_count[
critical_routing_bridging_role] = 0
upgrade_list_spine_count = 0
for up_dev in upgrade_dev_list:
# check critical physical roles
physical_role_refs = up_dev.get('physical_role_refs')
if not physical_role_refs:
continue
physical_role = physical_role_refs[0]['to'][-1]
if physical_role == 'spine':
upgrade_list_spine_count += 1
continue
routing_bridging_roles = up_dev.get('routing_bridging_roles')
if routing_bridging_roles:
rb_roles = routing_bridging_roles['rb_roles']
else:
rb_roles = []
for rb_role in rb_roles:
if rb_role in FilterModule.critical_routing_bridging_roles:
critical_routing_bridging_roles_count[rb_role] += 1
missing_roles = set()
if upgrade_list_spine_count == 1:
found = self._find_critical_phy_role('spine', critical_dev_list)
if not found:
missing_roles.add(physical_role)
# check critical routing-bridging roles
for rb_role in FilterModule.critical_routing_bridging_roles:
if critical_routing_bridging_roles_count[rb_role] == 1:
found = self._find_critical_rb_role(rb_role, critical_dev_list)
if not found:
missing_roles.add(rb_role)
if missing_roles:
error_msg = 'Fabric will not be hitless because these '\
'roles will no longer be deployed: '\
'{}'.format(list(missing_roles))
if error_msg:
results = {'error_msg': error_msg, 'status': "failure"}
else:
results = {'error_msg': "Fabric is hitless", 'status': "success"}
return results
# end _validate_critical_roles_for_hitless_upgrade
# Get device info used for maintenance mode activate
def _validate_critical_roles_for_mm(self):
error_msg = ''
mm_dev_list, critical_dev_list = self._get_critical_device_list()
# Make sure critical roles are present in critical devices
missing_roles = set()
for mm_dev in mm_dev_list:
# check critical physical roles
physical_role_refs = mm_dev.get('physical_role_refs')
if not physical_role_refs:
continue
physical_role = physical_role_refs[0]['to'][-1]
if physical_role == 'spine':
found = self._find_critical_phy_role(physical_role,
critical_dev_list)
if not found:
missing_roles.add(physical_role)
# check critical routing-bridging roles
routing_bridging_roles = mm_dev.get('routing_bridging_roles')
if routing_bridging_roles:
rb_roles = routing_bridging_roles['rb_roles']
else:
rb_roles = []
for rb_role in rb_roles:
if rb_role in FilterModule.critical_routing_bridging_roles:
found = self._find_critical_rb_role(
rb_role, critical_dev_list)
if not found:
missing_roles.add(rb_role)
if missing_roles:
error_msg = 'Fabric will not be hitless because these '\
'roles will no longer be deployed: '\
'{}'.format(list(missing_roles))
if error_msg:
results = {'error_msg': error_msg, 'status': "failure"}
else:
results = {'error_msg': "Fabric is hitless", 'status': "success"}
return results
# end _mm_validate
# Find a particular critical physical role in a list of devices
def _find_critical_phy_role(self, crit_phy_role, dev_list):
for dev in dev_list:
physical_role_refs = dev.get('physical_role_refs')
if not physical_role_refs:
continue
physical_role = physical_role_refs[0]['to'][-1]
if physical_role == crit_phy_role:
return True
return False
# end _find_critical_rb_role
# Find a particular critical routing-bridging role in a list of devices
def _find_critical_rb_role(self, crit_rb_role, dev_list):
for dev in dev_list:
routing_bridging_roles = dev.get('routing_bridging_roles')
if routing_bridging_roles:
rb_roles = routing_bridging_roles['rb_roles']
else:
rb_roles = []
for rb_role in rb_roles:
if crit_rb_role == rb_role:
return True
return False
# end _find_critical_rb_role
# generate a single entry of device information
def _generate_device_entry(self):
device_table = {}
device_obj = self.vncapi.physical_router_read(id=self.device_uuid)
routing_bridging_roles = device_obj.routing_bridging_roles
if not routing_bridging_roles:
raise ValueError("Cannot find routing-bridging roles")
rb_roles = routing_bridging_roles.get_rb_roles()
is_hitless_upgrade = self._is_hitless_upgrade(device_obj)
device_info = {
"basic": {
"device_fqname": device_obj.fq_name,
"device_vendor": device_obj.physical_router_vendor_name,
"device_family": device_obj.physical_router_device_family,
"device_product": device_obj.physical_router_product_name,
"device_serial_number":
device_obj.physical_router_serial_number,
"device_management_ip":
device_obj.physical_router_management_ip,
"device_username":
device_obj.physical_router_user_credentials.username,
"device_password": self._get_password(device_obj),
"device_hitless_upgrade": is_hitless_upgrade
},
'name': device_obj.fq_name[-1],
'uuid': self.device_uuid,
'physical_role': device_obj.physical_router_role,
'rb_roles': rb_roles,
'role': self._determine_role(device_obj.physical_router_role,
rb_roles),
'err_msgs': [],
'vpg_info': {
"vpg_list": [],
"buddies": []
},
'target_multihomed_interface': []
}
device_table[self.device_uuid] = device_info
return device_table
# end _generate_device_entry
# Get a list of all devices that share vpg groups with this device
def _get_vpg_buddies(self, device_uuid):
device_info = self.device_table[device_uuid]
vpg_info = device_info['vpg_info']
return vpg_info.get('buddies', [])
# end _get_vpg_buddies
# Get a single role for this device to be used in determining upgrade
# ordering
def _determine_role(self, physical_role, rb_roles):
# Use physical role for now. If not in ordered table, use default
for role_group in ordered_role_groups:
for role in role_group:
if physical_role == role:
return physical_role
return "default"
# end _determine_role
# If old and new image versions match, don't upgrade
def _check_skip_device_upgrade(self, device_info):
if device_info['image_version'] == \
device_info['current_image_version']:
return True, "Upgrade image version matches current image version"
return False, ""
# end _check_skip_device_upgrade
def _check_for_downgrade(self, device_info):
new_image = device_info['image_version']
current_image = device_info['current_image_version']
if new_image > current_image:
return ""
else:
return "(Image downgrade)"
# Get device password
def _get_password(self, device_obj):
return JobVncApi.decrypt_password(
encrypted_password=device_obj.physical_router_user_credentials.
get_password(),
pwd_key=device_obj.uuid)
class FilterModule(object):
@staticmethod
def _validate_job_ctx(job_ctx):
if not job_ctx.get('fabric_fqname'):
raise ValueError('Invalid job_ctx: missing fabric_fqname')
job_input = job_ctx.get('job_input')
if not job_input:
raise ValueError('Invalid job_ctx: missing job_input')
if not job_input.get('fabric_uuid'):
raise ValueError('Invalid job_ctx: missing fabric_uuid')
return job_input
# end _validate_job_ctx
def filters(self):
return {
'hitless_upgrade_plan': self.get_hitless_upgrade_plan,
'hitless_next_batch': self.get_next_batch,
'hitless_all_devices': self.get_all_devices,
'hitless_device_info': self.get_device_info
}
# end filters
# Wrapper to call main routine
def get_hitless_upgrade_plan(self, job_ctx, image_upgrade_list):
try:
FilterLog.instance("HitlessUpgradeFilter")
self.job_input = FilterModule._validate_job_ctx(job_ctx)
self.fabric_uuid = self.job_input['fabric_uuid']
self.vncapi = JobVncApi.vnc_init(job_ctx)
self.job_ctx = job_ctx
self.ja = JobAnnotations(self.vncapi)
self.advanced_parameters = self._get_advanced_params()
self._cache_job_input()
self.batch_limit = self.advanced_parameters.get(
'bulk_device_upgrade_count')
self.image_upgrade_list = image_upgrade_list
upgrade_plan = self._get_hitless_upgrade_plan()
return upgrade_plan
except Exception as ex:
errmsg = "Unexpected error: %s\n%s" % (str(ex),
traceback.format_exc())
_task_error_log(errmsg)
return {
'status': 'failure',
'error_msg': errmsg,
}
# end get_hitless_upgrade_plan
# Get any advanced parameters from job input to override defaults
def _get_advanced_params(self):
job_template_fqname = self.job_ctx.get('job_template_fqname')
def_json = self.ja.generate_default_json(job_template_fqname)
adv_params = def_json.get("advanced_parameters")
job_input_adv_params = self.job_input.get('advanced_parameters', {})
adv_params = self.ja.dict_update(adv_params, job_input_adv_params)
return adv_params
# end _get_advanced_params
# Store the job input on the fabric object for UI to retrieve later
def _cache_job_input(self):
job_input = copy.deepcopy(self.job_input)
job_input.update({"advanced_parameters": self.advanced_parameters})
self.ja.cache_job_input(self.fabric_uuid,
self.job_ctx.get('job_template_fqname')[-1],
job_input)
# end _cache_job_input
# Read from Node Profile to determine whether the upgrade is hitless
def _is_hitless_upgrade(self, device_obj):
node_profile_refs = device_obj.get_node_profile_refs()
if node_profile_refs:
np_uuid = node_profile_refs[0].get('uuid')
node_profile_obj = self.vncapi.node_profile_read(id=np_uuid)
is_hitless = node_profile_obj.get_node_profile_hitless_upgrade()
return is_hitless
return True
# end _is_hitless_upgrade
# Main routine to generate an upgrade plan
def _get_hitless_upgrade_plan(self):
self.device_table, self.skipped_device_table = \
self._generate_device_table()
self.role_device_groups = self._generate_role_device_groups()
self.vpg_table = self._generate_vpg_table()
self._generate_buddy_lists()
self.batches = self._generate_batches()
self.report = self._generate_report()
self.results = self._generate_results()
upgrade_plan = {
'image_upgrade_list': self.image_upgrade_list,
'advanced_parameters': self.advanced_parameters,
'device_table': self.device_table,
'device_count': len(self.device_table),
'skipped_device_table': self.skipped_device_table,
'role_device_groups': self.role_device_groups,
'vpg_table': self.vpg_table,
'batches': self.batches,
'report': self.report,
'results': self.results,
'status': "success"
}
return upgrade_plan
# end _get_hitless_upgrade_plan
# generate a table of device information
def _generate_device_table(self):
device_table = {}
skipped_device_table = {}
for image_entry in self.image_upgrade_list:
image_uuid = image_entry.get('image_uuid')
image_obj = self.vncapi.device_image_read(id=image_uuid)
device_list = image_entry.get('device_list')
for device_uuid in device_list:
device_obj = self.vncapi.physical_router_read(id=device_uuid)
routing_bridging_roles = device_obj.routing_bridging_roles
if not routing_bridging_roles:
raise ValueError("Cannot find routing-bridging roles")
rb_roles = routing_bridging_roles.get_rb_roles()
is_hitless_upgrade = self._is_hitless_upgrade(device_obj)
device_info = {
"basic": {
"device_fqname":
device_obj.fq_name,
"device_vendor":
device_obj.physical_router_vendor_name,
"device_family":
device_obj.physical_router_device_family,
"device_product":
device_obj.physical_router_product_name,
"device_serial_number":
device_obj.physical_router_serial_number,
"device_management_ip":
device_obj.physical_router_management_ip,
"device_username":
device_obj.physical_router_user_credentials.username,
"device_password":
self._get_password(device_obj),
"device_image_uuid":
image_uuid,
"device_hitless_upgrade":
is_hitless_upgrade
},
'image_family':
image_obj.device_image_device_family,
'image_version':
image_obj.device_image_os_version,
'current_image_version':
device_obj.physical_router_os_version,
'name':
device_obj.fq_name[-1],
'uuid':
device_uuid,
'physical_role':
device_obj.physical_router_role,
'rb_roles':
rb_roles,
'role':
self._determine_role(device_obj.physical_router_role,
rb_roles),
'err_msgs': [],
'vpg_info': {
"vpg_list": [],
"buddies": []
},
'target_multihomed_interface': []
}
skip, reason = self._check_skip_device_upgrade(device_info)
if skip:
if reason:
device_info['skip_reason'] = reason
skipped_device_table[device_uuid] = device_info
else:
device_table[device_uuid] = device_info
return device_table, skipped_device_table
# end _generate_device_table
# generate a simple table of roles with their corresponding devices
def _generate_role_device_groups(self):
# Group devices based on role. Use dict keyed by role name
role_device_groups = {}
for device_uuid, device_info in self.device_table.iteritems():
role = device_info['role']
if role not in role_device_groups:
role_device_groups[role] = []
role_device_groups[role].append(device_uuid)
return role_device_groups
# end _generate_role_device_groups
# generate a table keyed by virtual port group uuid containing member
# devices and their physical interfaces
def _generate_vpg_table(self):
vpg_table = {}
vpg_refs = self.vncapi.virtual_port_groups_list \
(parent_id=self.fabric_uuid).\
get('virtual-port-groups', [])
for vpg_ref in vpg_refs:
vpg_uuid = vpg_ref.get('uuid')
vpg_table[vpg_uuid] = {"device_table": {}}
vpg_dev_table = vpg_table[vpg_uuid]['device_table']
vpg_obj = self.vncapi.virtual_port_group_read(id=vpg_uuid)
vpg_table[vpg_uuid]['name'] = vpg_obj.fq_name[2]
pi_refs = vpg_obj.get_physical_interface_refs() or []
for pi_ref in pi_refs:
pi_uuid = pi_ref.get('uuid')
pi_obj = self.vncapi.physical_interface_read(id=pi_uuid)
device_uuid = pi_obj.parent_uuid
if device_uuid not in vpg_dev_table:
vpg_dev_table[device_uuid] = []
# If this is one of the devices to upgrade, append this
# vpg to the vpg_list for use later
if device_uuid in self.device_table:
device_info = self.device_table[device_uuid]
device_info['vpg_info']['vpg_list'].append(vpg_uuid)
pi_entry = {"fq_name": pi_obj.fq_name, "uuid": pi_obj.uuid}
vpg_dev_table[device_uuid].append(pi_entry)
# Add interface name to multihomed list
if device_uuid in self.device_table:
device_info = self.device_table[device_uuid]
if_name = pi_obj.fq_name[2]
if if_name not in device_info[
'target_multihomed_interface']:
device_info['target_multihomed_interface'].\
append(if_name)
return vpg_table
# end _generate_vpg_table
# For each device, generate a list of devices which cannot be upgraded at
# the same time because they are multi-homed to the same BMS
def _generate_buddy_lists(self):
for device_uuid, device_info in self.device_table.iteritems():
vpg_info = self.device_table[device_uuid]['vpg_info']
for vpg_uuid in vpg_info['vpg_list']:
vpg_entry = self.vpg_table[vpg_uuid]
vpg_dev_table = vpg_entry['device_table']
for vpg_dev_uuid, pi_list in vpg_dev_table.iteritems():
if vpg_dev_uuid not in vpg_info['buddies'] and \
vpg_dev_uuid != device_uuid:
buddy_entry = self._get_buddy_entry(
vpg_dev_uuid, pi_list)
vpg_info['buddies'].append(buddy_entry)
# end _generate_buddy_lists
# Create entry for peer, including ip_addr, username, password
def _get_buddy_entry(self, device_uuid, pi_list):
if device_uuid in self.device_table or \
device_uuid in self.skipped_device_table:
if device_uuid in self.device_table:
device_info = self.device_table[device_uuid]
else:
device_info = self.skipped_device_table[device_uuid]
fq_name = device_info['basic']['device_fqname']
mgmt_ip = device_info['basic']['device_management_ip']
username = device_info['basic']['device_username']
password = device_info['basic']['device_password']
multihomed_interface_list = \
device_info['target_multihomed_interface']
else:
device_obj = self.vncapi.physical_router_read(id=device_uuid)
fq_name = device_obj.fq_name
mgmt_ip = device_obj.physical_router_management_ip
username = device_obj.physical_router_user_credentials.username
password = self._get_password(device_obj)
multihomed_interface_list = \
self._get_multihomed_interface_list(pi_list)
return {
"uuid": device_uuid,
"fq_name": fq_name,
"name": fq_name[-1],
"mgmt_ip": mgmt_ip,
"username": username,
"password": password,
"multihomed_interface_list": multihomed_interface_list
}
# end _get_buddy_entry
# Get list of multihomed interface names
def _get_multihomed_interface_list(self, pi_list):
if_list = []
for pi_entry in pi_list:
if_name = pi_entry['fq_name'][-1]
if if_name not in if_list:
if_list.append(if_name)
return if_list
# end _get_multihomed_interface_list
# Use the ordered list of role groups and the role device groups to
# generate sets of batches. Also prevent two or more devices from being
# included in the same batch if they share a multi-homed BMS
def _generate_batches(self):
batches = []
idx = 0
for role_group in ordered_role_groups:
# Batching is per-role-group
batch_load_list = []
for role in role_group:
# Only allow 1 spine at a time for now
batch_max = 1 if "spine" in role else self.batch_limit
device_list = self.role_device_groups.get(role, [])
for device_uuid in device_list:
loaded = False
batch_full = False
device_name = self.device_table[device_uuid].get('name')
# Try to add device into an existing batch
for batch in batch_load_list:
buddies = self._get_vpg_buddies(device_uuid)
safe = True
# If this device shares a multi-homed vpg interface
# with another device in this batch, try the next batch
for buddy in buddies:
if buddy['uuid'] in batch['device_list']:
safe = False
break
# If safe to do so, add this device to the batch
if safe:
batch['device_list'].append(device_uuid)
batch['device_names'].append(device_name)
loaded = True
# if the batch is full, move it to the master list
if len(batch['device_list']) >= batch_max:
batch_full = True
break
# if not loaded into a batch, generate a new batch
if not loaded:
idx += 1
batch = {
'name': "Batch " + str(idx),
'device_list': [device_uuid],
'device_names': [device_name]
}
batch_load_list.append(batch)
# if the batch is full, move it to the master list
if len(batch['device_list']) >= batch_max:
batch_full = True
# if batch full, move from load list to master list
if batch_full:
batch_load_list.remove(batch)
batches.append(batch)
# move remaining batches from the load list to the master list
for batch in batch_load_list:
batches.append(batch)
# Add batch index to device info
for batch in batches:
for device_uuid in batch['device_list']:
self.device_table[device_uuid]['batch_index'] = batches.index(
batch)
return batches
# end _generate_batches
def _spill_device_details(self, device_name, device_info):
details = ""
basic = device_info['basic']
vpg_info = device_info['vpg_info']
batch_index = device_info.get('batch_index')
batch_name = self.batches[batch_index]['name'] \
if batch_index != None else "N/A"
details += "\n - {}\n".format(device_name)
details += \
" uuid : {}\n"\
" vendor : {}\n"\
" family : {}\n"\
" product : {}\n"\
" serial number : {}\n"\
" management ip : {}\n"\
" username : {}\n"\
" password : {}\n"\
" new image version: {}\n"\
" current image version: {}\n"\
" image family : {}\n"\
" physical role : {}\n"\
" routing bridging roles: {}\n"\
" role : {}\n"\
" vpg list : {}\n"\
" vpg peers : {}\n"\
" batch : {}\n"\
" is hitless? : {}\n"\
.format(
device_info.get('uuid'),
basic.get('device_vendor'),
basic.get('device_family'),
basic.get('device_product'),
basic.get('device_serial_number'),
basic.get('device_management_ip'),
basic.get('device_username'),
"** hidden **", #basic.get('device_password'),
device_info.get('image_version'),
device_info.get('current_image_version'),
device_info.get('image_family'),
device_info.get('physical_role'),
device_info.get('rb_roles'),
device_info.get('role'),
vpg_info.get('vpg_list'),
[buddy['uuid'] for buddy in vpg_info.get('buddies')],
batch_name,
basic.get('device_hitless_upgrade'),
)
return details
def _generate_report(self):
report = ""
# generate devices dict with key of device name
devices = {}
for device_uuid, device_info in self.device_table.iteritems():
device_name = self.device_table[device_uuid]['name']
devices[device_name] = self.device_table[device_uuid]
# generate skipped devices dict with key of device name
sdevices = {}
for device_uuid, device_info in self.skipped_device_table.iteritems():
device_name = self.skipped_device_table[device_uuid]['name']
sdevices[device_name] = self.skipped_device_table[device_uuid]
# First dump summary
report += "\n*************************** Summary ***************************\n"
# Dump summary of batches
total_time = str(
timedelta(minutes=IMAGE_UPGRADE_DURATION * len(self.batches)))
if len(self.batches) > 0:
report += "\nTotal estimated duration is {}.\n".format(total_time)
report += "\nNote that this time estimate may vary depending on network speeds and system capabilities.\n"
report += "The following batches of devices will be upgraded in the order listed:\n"
for batch in self.batches:
report += "\n{}:\n".format(batch.get('name'))
for device_name in batch.get('device_names', []):
device_info = devices[device_name]
current_version = device_info['current_image_version'] or ""
new_version = device_info['image_version']
hitless_upgrade = device_info['basic'][
'device_hitless_upgrade']
is_hitless = "" if hitless_upgrade else "(not hitless)"
report += " {} {} --> {} {}\n".format(
device_name, current_version, new_version, is_hitless)
else:
report += "\n NO DEVICES TO UPGRADE!"
report += "\n"
# Dump summary of skipped devices
if len(sdevices) > 0:
report += "\nThe following devices will not be upgraded for the reasons listed:\n"
for device_name, device_info in sorted(sdevices.iteritems()):
report += "\n {} ({})".format(
device_name,
device_info.get('skip_reason', "unknown reason"))
report += "\n NOTE: \n Incompatible device-image platform with " \
"the same versions could also lead to a device being skipped for image upgrade. Please recheck the platform compatibility" \
"for the above skipped devices."
# Now dump the details
report += "\n*************************** Details ***************************\n"
# Dump device info
if len(devices) > 0:
report += "\nDetailed information for the devices to be upgraded is listed below:\n"
# Spill out sorted list
for device_name, device_info in sorted(devices.iteritems()):
details = self._spill_device_details(device_name, device_info)
report += details
# Dump skipped device info
if len(sdevices) > 0:
report += "\nDetailed information for the devices to be skipped is listed below:\n"
# Spill out sorted list
for device_name, device_info in sorted(sdevices.iteritems()):
details = self._spill_device_details(device_name, device_info)
report += details
#print report
return report
def _generate_results(self):
return self.report
# Get the current and next batch off the batch list and return
def get_next_batch(self, job_ctx, upgrade_plan, device_uuid):
try:
return self._get_next_batch(upgrade_plan, device_uuid)
except Exception as ex:
errmsg = "Unexpected error attempting to get next batch: %s\n%s" % (
str(ex), traceback.format_exc())
_task_error_log(errmsg)
return {
'status': 'failure',
'error_msg': errmsg,
}
# end get_next_batch
# Get the current and next batch off the batch list and return
def _get_next_batch(self, upgrade_plan, device_uuid):
c_idx, n_idx = None, None
current_batch, next_batch = {}, {}
batch_info = {
'current': {
'batch_name': None,
'batch_index': None,
'batch_devices': {}
},
'next': {
'batch_name': None,
'batch_index': None,
'batch_devices': {}
},
'status': "success"
}
if device_uuid:
device_info = upgrade_plan['device_table'].get(device_uuid)
if device_info:
c_idx = device_info['batch_index']
n_idx = c_idx + 1
else:
return batch_info
else:
n_idx = 0
if c_idx != None:
batch = upgrade_plan['batches'][c_idx]
for device_uuid in batch['device_list']:
current_batch[device_uuid] = upgrade_plan['device_table'][
device_uuid]['basic']
batch_info['current'] = {
'batch_name': batch['name'],
'batch_index': c_idx,
'batch_devices': current_batch
}
if n_idx < len(upgrade_plan['batches']):
batch = upgrade_plan['batches'][n_idx]
for device_uuid in batch['device_list']:
next_batch[device_uuid] = upgrade_plan['device_table'][
device_uuid]['basic']
batch_info['next'] = {
'batch_name': batch['name'],
'batch_index': n_idx,
'batch_devices': next_batch
}
return batch_info
# end _get_next_batch
# Get list of all devices for use in test_run
def get_all_devices(self, job_ctx, upgrade_plan):
try:
return self._get_all_devices(upgrade_plan)
except Exception as ex:
errmsg = "Unexpected error attempting to get all devices: %s\n%s" % (
str(ex), traceback.format_exc())
_task_error_log(errmsg)
return {
'status': 'failure',
'error_msg': errmsg,
}
# end get_all_devices
# Get list of all devices for use in test_run
def _get_all_devices(self, upgrade_plan):
all_devices = {}
device_table = upgrade_plan['device_table']
batch_info = {
'current': {
'batch_name': None,
'batch_index': None,
'batch_devices': {}
},
'next': {
'batch_name': 'all',
'batch_index': 0,
'batch_devices': {}
},
'status': "success"
}
for device_uuid, device_info in device_table.iteritems():
all_devices[device_uuid] = device_table[device_uuid]['basic']
batch_info['next']['batch_devices'] = all_devices
return batch_info
#end get_all_devices
# Get info for a single device
def get_device_info(self, job_ctx, device_uuid, device_json):
try:
FilterLog.instance("HitlessUpgradeFilter")
self.job_input = FilterModule._validate_job_ctx(job_ctx)
self.fabric_uuid = self.job_input['fabric_uuid']
self.vncapi = JobVncApi.vnc_init(job_ctx)
self.job_ctx = job_ctx
self.ja = JobAnnotations(self.vncapi)
self.advanced_parameters = self._get_advanced_params()
self._cache_job_input()
self.device_uuid = device_uuid
self.device_json = device_json
device_info = self._get_device_info()
return device_info
except Exception as ex:
errmsg = "Unexpected error getting device info: %s\n%s" % (
str(ex), traceback.format_exc())
_task_error_log(errmsg)
return {
'status': 'failure',
'error_msg': errmsg,
}
# end get_device_info
# Get device info used for maintenance mode activate
def _get_device_info(self):
self.device_table = self._generate_device_entry()
self.skipped_device_table = {}
self.vpg_table = self._generate_vpg_table()
self._generate_buddy_lists()
device_info = {
'advanced_parameters': self.advanced_parameters,
'device_table': self.device_table,
'vpg_table': self.vpg_table,
'status': "success"
}
return device_info
# end _get_device_info
# generate a single entry of device information
def _generate_device_entry(self):
device_table = {}
device_obj = self.vncapi.physical_router_read(id=self.device_uuid)
routing_bridging_roles = device_obj.routing_bridging_roles
if not routing_bridging_roles:
raise ValueError("Cannot find routing-bridging roles")
rb_roles = routing_bridging_roles.get_rb_roles()
is_hitless_upgrade = self._is_hitless_upgrade(device_obj)
device_info = {
"basic": {
"device_fqname": device_obj.fq_name,
"device_vendor": device_obj.physical_router_vendor_name,
"device_family": device_obj.physical_router_device_family,
"device_product": device_obj.physical_router_product_name,
"device_serial_number":
device_obj.physical_router_serial_number,
"device_management_ip":
device_obj.physical_router_management_ip,
"device_username":
device_obj.physical_router_user_credentials.username,
"device_password": self._get_password(device_obj),
"device_hitless_upgrade": is_hitless_upgrade
},
'name': device_obj.fq_name[-1],
'uuid': self.device_uuid,
'physical_role': device_obj.physical_router_role,
'rb_roles': rb_roles,
'role': self._determine_role(device_obj.physical_router_role,
rb_roles),
'err_msgs': [],
'vpg_info': {
"vpg_list": [],
"buddies": []
},
}
device_table[self.device_uuid] = device_info
return device_table
# end _generate_device_entry
# Get a list of all devices that share vpg groups with this device
def _get_vpg_buddies(self, device_uuid):
device_info = self.device_table[device_uuid]
vpg_info = device_info['vpg_info']
return vpg_info.get('buddies', [])
# end _get_vpg_buddies
# Get a single role for this device to be used in determining upgrade
# ordering
def _determine_role(self, physical_role, rb_roles):
# Use physical role for now. If not in ordered table, use default
for role_group in ordered_role_groups:
for role in role_group:
if physical_role == role:
return physical_role
return "default"
# end _determine_role
# If old and new image versions match, don't upgrade
def _check_skip_device_upgrade(self, device_info):
if device_info['image_version'] == device_info[
'current_image_version']:
return True, "Upgrade image version matches current image version"
return False, ""
#end _check_skip_device_upgrade
# Get device password
def _get_password(self, device_obj):
return JobVncApi.decrypt_password(
encrypted_password=device_obj.physical_router_user_credentials.\
get_password(),
admin_password=self.job_ctx.get('vnc_api_init_params').\
get('admin_password'))
class FilterModule(object):
@staticmethod
def _validate_job_ctx(job_ctx):
if not job_ctx.get('fabric_fqname'):
raise ValueError('Invalid job_ctx: missing fabric_fqname')
job_input = job_ctx.get('job_input')
if not job_input:
raise ValueError('Invalid job_ctx: missing job_input')
if not job_input.get('fabric_uuid'):
raise ValueError('Invalid job_ctx: missing fabric_uuid')
return job_input
# end _validate_job_ctx
def filters(self):
return {
'hitless_upgrade_plan': self.get_hitless_upgrade_plan,
'hitless_next_batch': self.get_next_batch,
'hitless_all_devices': self.get_all_devices,
}
# end filters
# Wrapper to call main routine
def get_hitless_upgrade_plan(self, job_ctx, image_upgrade_list):
try:
FilterLog.instance("HitlessUpgradeFilter")
self.job_input = FilterModule._validate_job_ctx(job_ctx)
self.fabric_uuid = self.job_input['fabric_uuid']
self.vncapi = JobVncApi.vnc_init(job_ctx)
self.job_ctx = job_ctx
self.ja = JobAnnotations(self.vncapi)
self.advanced_parameters = self._get_advanced_params()
self._cache_job_input()
self.batch_limit = self.advanced_parameters.get(
'bulk_device_upgrade_count')
self.image_upgrade_list = image_upgrade_list
upgrade_plan = self._get_hitless_upgrade_plan()
return upgrade_plan
except Exception as ex:
errmsg = "Unexpected error: %s\n%s" % (
str(ex), traceback.format_exc()
)
_task_error_log(errmsg)
return {
'status': 'failure',
'error_msg': errmsg,
}
# end get_hitless_upgrade_plan
# Get any advanced parameters from job input to override defaults
def _get_advanced_params(self):
job_template_fqname = self.job_ctx.get('job_template_fqname')
def_json = self.ja.generate_default_json(job_template_fqname)
adv_params = def_json.get("advanced_parameters")
job_input_adv_params = self.job_input.get('advanced_parameters',{})
adv_params = self.ja.dict_update(adv_params, job_input_adv_params)
return adv_params
# end _get_advanced_params
# Store the job input on the fabric object for UI to retrieve later
def _cache_job_input(self):
job_input = copy.deepcopy(self.job_input)
job_input.update({"advanced_parameters": self.advanced_parameters})
self.ja.cache_job_input(self.fabric_uuid,
self.job_ctx.get('job_template_fqname')[-1],
job_input)
# end _cache_job_input
# Read from Node Profile to determine whether the upgrade is hitless
def _is_hitless_upgrade(self, device_obj):
node_profile_refs = device_obj.get_node_profile_refs()
if node_profile_refs:
np_uuid = node_profile_refs[0].get('uuid')
node_profile_obj = self.vncapi.node_profile_read(id=np_uuid)
is_hitless = node_profile_obj.get_node_profile_hitless_upgrade()
return is_hitless
return True
# end _is_hitless_upgrade
# Main routine to generate an upgrade plan
def _get_hitless_upgrade_plan(self):
self.device_table, self.skipped_device_table = \
self._generate_device_table()
self.role_device_groups = self._generate_role_device_groups()
self.lag_table = self._generate_lag_table()
self._generate_buddy_lists()
self.batches = self._generate_batches()
self.report = self._generate_report()
self.results = self._generate_results()
upgrade_plan = {
'image_upgrade_list': self.image_upgrade_list,
'advanced_parameters': self.advanced_parameters,
'device_table': self.device_table,
'device_count': len(self.device_table),
'skipped_device_table': self.skipped_device_table,
'role_device_groups': self.role_device_groups,
'lag_table': self.lag_table,
'batches': self.batches,
'report': self.report,
'results': self.results,
'status': "success"
}
return upgrade_plan
# end _get_hitless_upgrade_plan
# generate a table of device information
def _generate_device_table(self):
device_table = {}
skipped_device_table = {}
for image_entry in self.image_upgrade_list:
image_uuid = image_entry.get('image_uuid')
image_obj = self.vncapi.device_image_read(id=image_uuid)
device_list = image_entry.get('device_list')
for device_uuid in device_list:
device_obj = self.vncapi.physical_router_read(id=device_uuid)
routing_bridging_roles = device_obj.routing_bridging_roles
if not routing_bridging_roles:
raise ValueError("Cannot find routing-bridging roles")
rb_roles = routing_bridging_roles.get_rb_roles()
is_hitless_upgrade = self._is_hitless_upgrade(device_obj)
device_info = {
"basic": {
"device_fqname": device_obj.fq_name,
"device_vendor": device_obj.physical_router_vendor_name,
"device_family": device_obj.physical_router_device_family,
"device_product": device_obj.physical_router_product_name,
"device_serial_number": device_obj.physical_router_serial_number,
"device_management_ip": device_obj.physical_router_management_ip,
"device_username": device_obj.physical_router_user_credentials.username,
"device_password": self._get_password(device_obj),
"device_image_uuid": image_uuid,
"device_hitless_upgrade": is_hitless_upgrade
},
'image_family': image_obj.device_image_device_family,
'image_version': image_obj.device_image_os_version,
'current_image_version': device_obj.physical_router_os_version,
'name': device_obj.fq_name[-1],
'uuid': device_uuid,
'physical_role': device_obj.physical_router_role,
'rb_roles': rb_roles,
'role': self._determine_role(
device_obj.physical_router_role, rb_roles),
'err_msgs': [],
'lag_info': {"lag_list": [], "buddies": []},
}
skip, reason = self._check_skip_device_upgrade(device_info)
if skip:
if reason:
device_info['skip_reason'] = reason
skipped_device_table[device_uuid] = device_info
else:
device_table[device_uuid] = device_info
return device_table, skipped_device_table
# end _generate_device_table
# generate a simple table of roles with their corresponding devices
def _generate_role_device_groups(self):
# Group devices based on role. Use dict keyed by role name
role_device_groups = {}
for device_uuid, device_info in self.device_table.iteritems():
role = device_info['role']
if role not in role_device_groups:
role_device_groups[role] = []
role_device_groups[role].append(device_uuid)
return role_device_groups
# end _generate_role_device_groups
# generate a table keyed by link aggregation group uuid containing member
# devices and their physical interfaces
def _generate_lag_table(self):
lag_table = {}
lag_refs = self.vncapi.link_aggregation_groups_list \
(parent_id=self.fabric_uuid).\
get('link-aggregation-groups', [])
for lag_ref in lag_refs:
lag_uuid = lag_ref.get('uuid')
lag_table[lag_uuid] = {"device_table": {}}
lag_dev_table = lag_table[lag_uuid]['device_table']
lag_obj = self.vncapi.link_aggregation_group_read(id=lag_uuid)
lag_table[lag_uuid]['name'] = lag_obj.display_name
pi_refs = lag_obj.get_physical_interface_refs() or []
for pi_ref in pi_refs:
pi_uuid = pi_ref.get('uuid')
pi_obj = self.vncapi.physical_interface_read(id=pi_uuid)
device_uuid = pi_obj.parent_uuid
if device_uuid not in lag_dev_table:
lag_dev_table[device_uuid] = []
# If this is one of the devices to upgrade, append this
# LAG to the lag_list for use later
if device_uuid in self.device_table:
device_info = self.device_table[device_uuid]
device_info['lag_info']['lag_list'].append(lag_uuid)
pi_entry = {"fq_name": pi_obj.fq_name, "uuid": pi_obj.uuid}
lag_dev_table[device_uuid].append(pi_entry)
return lag_table
# end _generate_lag_table
# For each device, generate a list of devices which cannot be upgraded at
# the same time because they are multi-homed to the same BMS
def _generate_buddy_lists(self):
for device_uuid, device_info in self.device_table.iteritems():
lag_info = self.device_table[device_uuid]['lag_info']
for lag_uuid in lag_info['lag_list']:
lag_entry = self.lag_table[lag_uuid]
lag_dev_table = lag_entry['device_table']
for lag_dev_uuid, pi_list in lag_dev_table.iteritems():
if lag_dev_uuid not in lag_info['buddies'] and \
lag_dev_uuid != device_uuid:
lag_info['buddies'].append(lag_dev_uuid)
# end _generate_buddy_lists
# Use the ordered list of role groups and the role device groups to
# generate sets of batches. Also prevent two or more devices from being
# included in the same batch if they share a multi-homed BMS
def _generate_batches(self):
batches = []
idx = 0
for role_group in ordered_role_groups:
# Batching is per-role-group
batch_load_list = []
for role in role_group:
# Only allow 1 spine at a time for now
batch_max = 1 if "@spine" in role else self.batch_limit
device_list = self.role_device_groups.get(role, [])
for device_uuid in device_list:
loaded = False
batch_full = False
device_name = self.device_table[device_uuid].get('name')
# Try to add device into an existing batch
for batch in batch_load_list:
buddies = self._get_lag_buddies(device_uuid)
safe = True
# If this device shares a multi-homed LAG interface
# with another device in this batch, try the next batch
for buddy in buddies:
if buddy in batch['device_list']:
safe = False
break
# If safe to do so, add this device to the batch
if safe:
batch['device_list'].append(device_uuid)
batch['device_names'].append(device_name)
loaded = True
# if the batch is full, move it to the master list
if len(batch['device_list']) >= batch_max:
batch_full = True
break
# if not loaded into a batch, generate a new batch
if not loaded:
idx += 1
batch = {
'name': "Batch " + str(idx),
'device_list': [device_uuid],
'device_names': [device_name]
}
batch_load_list.append(batch)
# if the batch is full, move it to the master list
if len(batch['device_list']) >= batch_max:
batch_full = True
# if batch full, move from load list to master list
if batch_full:
batch_load_list.remove(batch)
batches.append(batch)
# move remaining batches from the load list to the master list
for batch in batch_load_list:
batches.append(batch)
# Add batch index to device info
for batch in batches:
for device_uuid in batch['device_list']:
self.device_table[device_uuid]['batch_index'] = batches.index(batch)
return batches
# end _generate_batches
def _spill_device_details(self, device_name, device_info):
details = ""
basic = device_info['basic']
lag_info = device_info['lag_info']
batch_index = device_info.get('batch_index')
batch_name = self.batches[batch_index]['name'] \
if batch_index != None else "N/A"
details += "\n - {}\n".format(device_name)
details += \
" uuid : {}\n"\
" vendor : {}\n"\
" family : {}\n"\
" product : {}\n"\
" serial number : {}\n"\
" management ip : {}\n"\
" username : {}\n"\
" password : {}\n"\
" new image version: {}\n"\
" current image version: {}\n"\
" image family : {}\n"\
" physical role : {}\n"\
" routing bridging roles: {}\n"\
" role : {}\n"\
" lag list : {}\n"\
" lag peers : {}\n"\
" batch : {}\n"\
" is hitless? : {}\n"\
.format(
device_info.get('uuid'),
basic.get('device_vendor'),
basic.get('device_family'),
basic.get('device_product'),
basic.get('device_serial_number'),
basic.get('device_management_ip'),
basic.get('device_username'),
"** hidden **", #basic.get('device_password'),
device_info.get('image_version'),
device_info.get('current_image_version'),
device_info.get('image_family'),
device_info.get('physical_role'),
device_info.get('rb_roles'),
device_info.get('role'),
lag_info.get('lag_list'),
lag_info.get('buddies'),
batch_name,
basic.get('device_hitless_upgrade'),
)
return details
def _generate_report(self):
report = ""
# generate devices dict with key of device name
devices = {}
for device_uuid, device_info in self.device_table.iteritems():
device_name = self.device_table[device_uuid]['name']
devices[device_name] = self.device_table[device_uuid]
# generate skipped devices dict with key of device name
sdevices = {}
for device_uuid, device_info in self.skipped_device_table.iteritems():
device_name = self.skipped_device_table[device_uuid]['name']
sdevices[device_name] = self.skipped_device_table[device_uuid]
# First dump summary
report += "\n*************************** Summary ***************************\n"
# Dump summary of batches
total_time = str(timedelta(minutes=IMAGE_UPGRADE_DURATION*len(self.batches)))
report += "\nTotal estimated duration is {}.\n".format(total_time)
report += "\nNote that this time estimate may vary depending on network speeds and system capabilities.\n"
report += "The following batches of devices will be upgraded in the order listed:\n"
for batch in self.batches:
report += "\n{}:\n".format(batch.get('name'))
for device_name in batch.get('device_names', []):
device_info = devices[device_name]
current_version = device_info['current_image_version']
new_version = device_info['image_version']
hitless_upgrade = device_info['basic']['device_hitless_upgrade']
is_hitless = "" if hitless_upgrade else "(not hitless)"
report += " {} {} --> {} {}\n".format(device_name,
current_version,
new_version,
is_hitless)
report += "\n"
# Dump summary of skipped devices
if len(sdevices) > 0:
report += "\nThe following devices will not be upgraded for the reasons listed:\n"
for device_name, device_info in sorted(sdevices.iteritems()):
report += "\n {} ({})".format(device_name, device_info.get('skip_reason', "unknown reason"))
report += "\n"
# Now dump the details
report += "\n*************************** Details ***************************\n"
# Dump device info
report += "\nDetailed information for the devices to be upgraded is listed below:\n"
# Spill out sorted list
for device_name, device_info in sorted(devices.iteritems()):
details = self._spill_device_details(device_name, device_info)
report += details
# Dump skipped device info
if len(sdevices) > 0:
report += "\nDetailed information for the devices to be skipped is listed below:\n"
# Spill out sorted list
for device_name, device_info in sorted(sdevices.iteritems()):
details = self._spill_device_details(device_name, device_info)
report += details
#print report
return report
def _generate_results(self):
return self.report
# Get the current and next batch off the batch list and return
def get_next_batch(self, job_ctx, upgrade_plan, device_uuid):
try:
return self._get_next_batch(upgrade_plan, device_uuid)
except Exception as ex:
errmsg = "Unexpected error attempting to get next batch: %s\n%s" % (
str(ex), traceback.format_exc()
)
self._logger.error(errmsg)
return {
'status': 'failure',
'error_msg': errmsg,
}
# end get_next_batch
# Get the current and next batch off the batch list and return
def _get_next_batch(self, upgrade_plan, device_uuid):
c_idx, n_idx = None, None
current_batch, next_batch = {}, {}
batch_info = {
'current': {
'batch_name': None, 'batch_index': None, 'batch_devices': {}
},
'next': {
'batch_name': None, 'batch_index': None, 'batch_devices': {}
},
'status': "success"
}
if device_uuid:
device_info = upgrade_plan['device_table'].get(device_uuid)
if device_info:
c_idx = device_info['batch_index']
n_idx = c_idx + 1
else:
return batch_info
else:
n_idx = 0
if c_idx != None:
batch = upgrade_plan['batches'][c_idx]
for device_uuid in batch['device_list']:
current_batch[device_uuid] = upgrade_plan['device_table'][device_uuid]['basic']
batch_info['current'] = {'batch_name': batch['name'], 'batch_index': c_idx, 'batch_devices': current_batch}
if n_idx < len(upgrade_plan['batches']):
batch = upgrade_plan['batches'][n_idx]
for device_uuid in batch['device_list']:
next_batch[device_uuid] = upgrade_plan['device_table'][device_uuid]['basic']
batch_info['next'] = {'batch_name': batch['name'], 'batch_index': n_idx, 'batch_devices': next_batch}
return batch_info
# end _get_next_batch
# Get list of all devices for use in test_run
def get_all_devices(self, job_ctx, upgrade_plan):
try:
return self._get_all_devices(upgrade_plan)
except Exception as ex:
errmsg = "Unexpected error attempting to get all devices: %s\n%s" % (
str(ex), traceback.format_exc()
)
self._logger.error(errmsg)
return {
'status': 'failure',
'error_msg': errmsg,
}
# end get_all_devices
# Get list of all devices for use in test_run
def _get_all_devices(self, upgrade_plan):
all_devices = {}
device_table = upgrade_plan['device_table']
batch_info = {
'current': {
'batch_name': None, 'batch_index': None, 'batch_devices': {}
},
'next': {
'batch_name': 'all', 'batch_index': 0, 'batch_devices': {}
},
'status': "success"
}
for device_uuid, device_info in device_table.iteritems():
all_devices[device_uuid] = device_table[device_uuid]['basic']
batch_info['next']['batch_devices'] = all_devices
return batch_info
#end get_all_devices
# Get a list of all devices that share LAG groups with this device
def _get_lag_buddies(self, device_uuid):
device_info = self.device_table[device_uuid]
lag_info = device_info['lag_info']
return lag_info.get('buddies', [])
# end _get_lag_buddies
# Get a single role for this device to be used in determining upgrade
# ordering
def _determine_role(self, physical_role, rb_roles):
# For now, we simply take the first rb_role listed
return rb_roles[0] + '@' + physical_role
# end _determine_role
# If old and new image versions match, don't upgrade
def _check_skip_device_upgrade(self, device_info):
if device_info['image_version'] == device_info['current_image_version']:
return True, "Upgrade image version matches current image version"
return False, ""
#end _check_skip_device_upgrade
# Get device password
def _get_password(self, device_obj):
password = ""
# TODO get password from first element of fabric object for now
# Get fabric object
fabric_obj = self.vncapi.fabric_read(id=self.fabric_uuid)
credentials = fabric_obj.fabric_credentials
if credentials:
dev_cred = credentials.get_device_credential()[0]
if dev_cred:
user_cred = dev_cred.get_credential()
if user_cred:
password = user_cred.password
return password