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config_db.py
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config_db.py
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#
# Copyright (c) 2016 Juniper Networks, Inc. All rights reserved.
#
"""
This file contains implementation of data model for kube manager
"""
import json
from pysandesh.gen_py.sandesh.ttypes import SandeshLevel
from cfgm_common.vnc_db import DBBase
from bitstring import BitArray
INVALID_VLAN_ID = 4096
MAX_VLAN_ID = 4095
class DBBaseKM(DBBase):
obj_type = __name__
_fq_name_to_uuid = {}
_nested_mode = False
def __init__(self, uuid, obj_dict=None):
self._fq_name_to_uuid[tuple(obj_dict['fq_name'])] = uuid
@classmethod
def get_fq_name_to_uuid(cls, fq_name):
return cls._fq_name_to_uuid.get(tuple(fq_name))
@classmethod
def delete(cls, uuid):
if uuid not in cls._dict:
return
obj = cls._dict[uuid]
del cls._fq_name_to_uuid[tuple(obj.fq_name)]
def evaluate(self):
# Implement in the derived class
pass
@staticmethod
def is_nested ():
"""Return nested mode enable/disable config value."""
return DBBaseKM._nested_mode
@staticmethod
def set_nested (val):
"""Configured nested mode value.
True : Enable nested mode.
False : Disable nested mode.
"""
DBBaseKM._nested_mode = val
class LoadbalancerKM(DBBaseKM):
_dict = {}
obj_type = 'loadbalancer'
def __init__(self, uuid, obj_dict=None):
self.uuid = uuid
self.virtual_machine_interfaces = set()
self.loadbalancer_listeners = set()
self.selectors = None
self.annotations = None
obj_dict = self.update(obj_dict)
super(LoadbalancerKM, self).__init__(uuid, obj_dict)
def update(self, obj=None):
if obj is None:
obj = self.read_obj(self.uuid)
self.name = obj['fq_name'][-1]
self.fq_name = obj['fq_name']
self.parent_uuid = obj['parent_uuid']
self.annotations = obj.get('annotations', None)
self.update_multiple_refs('virtual_machine_interface', obj)
self.update_multiple_refs('loadbalancer_listener', obj)
return obj
@classmethod
def delete(cls, uuid):
if uuid not in cls._dict:
return
obj = cls._dict[uuid]
obj.update_multiple_refs('virtual_machine_interface', {})
obj.update_multiple_refs('loadbalancer_listener', {})
super(LoadbalancerKM, cls).delete(uuid)
del cls._dict[uuid]
class LoadbalancerListenerKM(DBBaseKM):
_dict = {}
obj_type = 'loadbalancer_listener'
def __init__(self, uuid, obj_dict=None):
self.uuid = uuid
self.loadbalancer = None
self.loadbalancer_pool = None
self.target_port = None
self.update(obj_dict)
# end __init__
def update(self, obj=None):
if obj is None:
obj = self.read_obj(self.uuid)
self.name = obj['fq_name'][-1]
self.display_name = obj.get('display_name', None)
self.parent_uuid = obj['parent_uuid']
self.id_perms = obj.get('id_perms', None)
self.params = obj.get('loadbalancer_listener_properties', None)
self.update_single_ref('loadbalancer', obj)
self.update_single_ref('loadbalancer_pool', obj)
self.annotations = obj.get('annotations', None)
if self.annotations:
for kvp in self.annotations['key_value_pair'] or []:
if kvp['key'] == 'targetPort':
self.target_port = kvp['value']
break
# end update
@classmethod
def delete(cls, uuid):
if uuid not in cls._dict:
return
obj = cls._dict[uuid]
obj.update_single_ref('loadbalancer', {})
obj.update_single_ref('loadbalancer_pool', {})
del cls._dict[uuid]
# end delete
# end class LoadbalancerListenerKM
class LoadbalancerPoolKM(DBBaseKM):
_dict = {}
obj_type = 'loadbalancer_pool'
def __init__(self, uuid, obj_dict=None):
self.uuid = uuid
self.members = set()
self.loadbalancer_listener = None
self.custom_attributes = []
self.update(obj_dict)
# end __init__
def update(self, obj=None):
if obj is None:
obj = self.read_obj(self.uuid)
self.name = obj['fq_name'][-1]
self.fq_name = obj['fq_name']
self.params = obj.get('loadbalancer_pool_properties', None)
self.provider = obj.get('loadbalancer_pool_provider', None)
self.annotations = obj.get('annotations', None)
kvpairs = obj.get('loadbalancer_pool_custom_attributes', None)
if kvpairs:
self.custom_attributes = kvpairs.get('key_value_pair', [])
self.members = set([lm['uuid']
for lm in obj.get('loadbalancer_members', [])])
self.id_perms = obj.get('id_perms', None)
self.parent_uuid = obj['parent_uuid']
self.display_name = obj.get('display_name', None)
self.update_single_ref('loadbalancer_listener', obj)
# end update
@classmethod
def delete(cls, uuid):
if uuid not in cls._dict:
return
obj = cls._dict[uuid]
obj.update_single_ref('loadbalancer_listener', {})
del cls._dict[uuid]
# end delete
# end class LoadbalancerPoolKM
class LoadbalancerMemberKM(DBBaseKM):
_dict = {}
obj_type = 'loadbalancer_member'
def __init__(self, uuid, obj_dict=None):
self.uuid = uuid
self.vmi = None
self.vm = None
self.loadbalancer_pool = {}
self.update(obj_dict)
if self.loadbalancer_pool:
parent = LoadbalancerPoolKM.get(self.loadbalancer_pool)
if parent:
parent.members.add(self.uuid)
# end __init__
def update(self, obj=None):
if obj is None:
obj = self.read_obj(self.uuid)
self.name = obj['fq_name'][-1]
self.params = obj.get('loadbalancer_member_properties', None)
self.loadbalancer_pool = self.get_parent_uuid(obj)
self.id_perms = obj.get('id_perms', None)
self.annotations = obj.get('annotations', None)
if self.annotations:
for kvp in self.annotations['key_value_pair'] or []:
if kvp['key'] == 'vmi':
self.vmi = kvp['value']
if kvp['key'] == 'vm':
self.vm = kvp['value']
# end update
@classmethod
def delete(cls, uuid):
if uuid not in cls._dict:
return
obj = cls._dict[uuid]
if obj.loadbalancer_pool:
parent = LoadbalancerPoolKM.get(obj.loadbalancer_pool)
if parent:
parent.members.discard(obj.uuid)
del cls._dict[uuid]
# end delete
# end class LoadbalancerMemberKM
class HealthMonitorKM(DBBaseKM):
_dict = {}
obj_type = 'loadbalancer_healthmonitor'
def __init__(self, uuid, obj_dict=None):
self.uuid = uuid
self.loadbalancer_pools = set()
self.update(obj_dict)
# end __init__
def update(self, obj=None):
if obj is None:
obj = self.read_obj(self.uuid)
self.name = obj['fq_name'][-1]
self.params = obj.get('loadbalancer_healthmonitor_properties', None)
self.update_multiple_refs('loadbalancer_pool', obj)
self.id_perms = obj.get('id_perms', None)
self.parent_uuid = obj['parent_uuid']
self.display_name = obj.get('display_name', None)
# end update
@classmethod
def delete(cls, uuid):
if uuid not in cls._dict:
return
obj = cls._dict[uuid]
obj.update_multiple_refs('loadbalancer_pool', {})
del cls._dict[uuid]
# end delete
# end class HealthMonitorKM
class VirtualMachineKM(DBBaseKM):
_dict = {}
obj_type = 'virtual_machine'
def __init__(self, uuid, obj_dict=None):
self.uuid = uuid
self.virtual_router = None
self.virtual_machine_interfaces = set()
self.pod_labels = None
obj_dict = self.update(obj_dict)
super(VirtualMachineKM, self).__init__(uuid, obj_dict)
def update(self, obj=None):
if obj is None:
obj = self.read_obj(self.uuid)
self.name = obj['fq_name'][-1]
self.fq_name = obj['fq_name']
self.annotations = obj.get('annotations', None)
if self.annotations:
for kvp in self.annotations['key_value_pair'] or []:
if kvp['key'] == 'labels':
self.pod_labels = json.loads(kvp['value'])
break
self.update_single_ref('virtual_router', obj)
self.update_multiple_refs('virtual_machine_interface', obj)
return obj
@classmethod
def delete(cls, uuid):
if uuid not in cls._dict:
return
obj = cls._dict[uuid]
obj.update_single_ref('virtual_router', {})
obj.update_multiple_refs('virtual_machine_interface', {})
super(VirtualMachineKM, cls).delete(uuid)
del cls._dict[uuid]
class VirtualRouterKM(DBBaseKM):
_dict = {}
obj_type = 'virtual_router'
def __init__(self, uuid, obj_dict=None):
self.uuid = uuid
self.virtual_machines = set()
self.update(obj_dict)
def update(self, obj=None):
if obj is None:
obj = self.read_obj(self.uuid)
self.name = obj['fq_name'][-1]
self.fq_name = obj['fq_name']
self.update_multiple_refs('virtual_machine', obj)
@classmethod
def delete(cls, uuid):
if uuid not in cls._dict:
return
obj = cls._dict[uuid]
obj.update_multiple_refs('virtual_machine', {})
del cls._dict[uuid]
class VirtualMachineInterfaceKM(DBBaseKM):
_dict = {}
obj_type = 'virtual_machine_interface'
def __init__(self, uuid, obj_dict=None):
self.uuid = uuid
self.host_id = None
self.virtual_network = None
self.virtual_machine = None
self.instance_ips = set()
self.floating_ips = set()
self.virtual_machine_interfaces = set()
self.vlan_id = None
self.vlan_bit_map = None
self.security_groups = set()
obj_dict = self.update(obj_dict)
self.add_to_parent(obj_dict)
def update(self, obj=None):
if obj is None:
obj = self.read_obj(self.uuid)
self.name = obj['fq_name'][-1]
self.fq_name = obj['fq_name']
# Cache bindings on this VMI.
if obj.get('virtual_machine_interface_bindings', None):
bindings = obj['virtual_machine_interface_bindings']
kvps = bindings.get('key_value_pair', None)
for kvp in kvps or []:
if kvp['key'] == 'host_id':
self.host_id = kvp['value']
self.update_multiple_refs('instance_ip', obj)
self.update_multiple_refs('floating_ip', obj)
self.update_single_ref('virtual_network', obj)
self.update_single_ref('virtual_machine', obj)
self.update_multiple_refs('security_group', obj)
self.update_multiple_refs('virtual_machine_interface', obj)
# Update VMI properties.
vlan_id = None
if obj.get('virtual_machine_interface_properties', None):
props = obj['virtual_machine_interface_properties']
# Property: Vlan ID.
vlan_id = props.get('sub_interface_vlan_tag', None)
# If vlan is configured on this interface, cache the appropriate
# info.
#
# In nested mode, if the interface is a sub-interface, the vlan id
# space is allocated and managed in the parent interface. So check to
# see if the interface has a parent. If it does, invoke the appropriate
# method on the parent interface for vlan-id management.
if (vlan_id is not None or self.vlan_id is not None) and\
vlan_id is not self.vlan_id:
# Vlan is configured on this interface.
if DBBaseKM.is_nested():
# We are in nested mode.
# Check if this interface has a parent. If yes, this is
# is a sub-interface and the vlan-id should be managed on the
# vlan-id space of the parent interface.
parent_vmis = self.virtual_machine_interfaces
for parent_vmi_id in parent_vmis:
parent_vmi = VirtualMachineInterfaceKM.locate(
parent_vmi_id)
if not parent_vmi:
continue
if self.vlan_id is not None:
parent_vmi.reset_vlan(self.vlan_id)
if vlan_id is not None:
parent_vmi.set_vlan(vlan_id)
# Cache the Vlan-id.
self.vlan_id = vlan_id
else:
# Nested mode is not configured.
# Vlan-id is NOT managed on the parent interface.
# Just cache and proceed.
self.vlan_id = vlan_id
return obj
@classmethod
def delete(cls, uuid):
if uuid not in cls._dict:
return
obj = cls._dict[uuid]
# If vlan-id is configured and if we are in nested mode,
# free up the vlan-id which was claimed from the parent
# interface.
if obj.vlan_id and DBBaseKM.is_nested():
parent_vmi_ids = obj.virtual_machine_interfaces
for parent_vmi_id in parent_vmi_ids:
parent_vmi = VirtualMachineInterfaceKM.get(parent_vmi_id)
if parent_vmi:
parent_vmi.reset_vlan(obj.vlan_id)
obj.update_multiple_refs('instance_ip', {})
obj.update_multiple_refs('floating_ip', {})
obj.update_single_ref('virtual_network', {})
obj.update_single_ref('virtual_machine', {})
obj.update_multiple_refs('security_group', {})
obj.update_multiple_refs('virtual_machine_interface', {})
obj.remove_from_parent()
del cls._dict[uuid]
def set_vlan (self, vlan):
if vlan < 0 or vlan > MAX_VLAN_ID:
return
if not self.vlan_bit_map:
self.vlan_bit_map = BitArray(MAX_VLAN_ID + 1)
self.vlan_bit_map[vlan] = 1
def reset_vlan (self, vlan):
if vlan < 0 or vlan > MAX_VLAN_ID:
return
if not self.vlan_bit_map:
return
self.vlan_bit_map[vlan] = 0
def alloc_vlan (self):
if not self.vlan_bit_map:
self.vlan_bit_map = BitArray(MAX_VLAN_ID + 1)
vid = self.vlan_bit_map.find('0b0')
if vid:
self.set_vlan(vid[0])
return vid[0]
return INVALID_VLAN_ID
def get_vlan (self):
return vlan_id
class VirtualNetworkKM(DBBaseKM):
_dict = {}
obj_type = 'virtual_network'
def __init__(self, uuid, obj_dict=None):
self.uuid = uuid
self.virtual_machine_interfaces = set()
self.instance_ips = set()
self.network_ipams = set()
obj_dict = self.update(obj_dict)
self.add_to_parent(obj_dict)
def update(self, obj=None):
if obj is None:
obj = self.read_obj(self.uuid)
self.name = obj['fq_name'][-1]
self.fq_name = obj['fq_name']
self.update_multiple_refs('virtual_machine_interface', obj)
self.update_multiple_refs('instance_ip', obj)
self.update_multiple_refs('network_ipam', obj)
return obj
@classmethod
def delete(cls, uuid):
if uuid not in cls._dict:
return
obj = cls._dict[uuid]
obj.update_multiple_refs('virtual_machine_interface', {})
obj.update_multiple_refs('instance_ip', {})
obj.update_multiple_refs('network_ipam', {})
obj.remove_from_parent()
del cls._dict[uuid]
class FloatingIpKM(DBBaseKM):
_dict = {}
obj_type = 'floating_ip'
def __init__(self, uuid, obj_dict=None):
self.uuid = uuid
self.address = None
self.virtual_machine_interfaces = set()
self.update(obj_dict)
def update(self, obj=None):
if obj is None:
obj = self.read_obj(self.uuid)
self.name = obj['fq_name'][-1]
self.fq_name = obj['fq_name']
self.address = obj['floating_ip_address']
self.update_multiple_refs('virtual_machine_interface', obj)
@classmethod
def delete(cls, uuid):
if uuid not in cls._dict:
return
obj = cls._dict[uuid]
obj.update_multiple_refs('virtual_machine_interface', {})
del cls._dict[uuid]
# end class FloatingIpKM
class InstanceIpKM(DBBaseKM):
_dict = {}
obj_type = 'instance_ip'
def __init__(self, uuid, obj_dict=None):
self.uuid = uuid
self.address = None
self.family = None
self.virtual_machine_interfaces = set()
self.virtual_networks = set()
self.floating_ips = set()
self.update(obj_dict)
def update(self, obj=None):
if obj is None:
obj = self.read_obj(self.uuid)
self.name = obj['fq_name'][-1]
self.fq_name = obj['fq_name']
self.family = obj.get('instance_ip_family', 'v4')
self.address = obj.get('instance_ip_address', None)
self.update_multiple_refs('virtual_machine_interface', obj)
self.update_multiple_refs('virtual_network', obj)
self.update_multiple_refs('floating_ip', obj)
@classmethod
def delete(cls, uuid):
if uuid not in cls._dict:
return
obj = cls._dict[uuid]
obj.update_multiple_refs('virtual_machine_interface', {})
obj.update_multiple_refs('virtual_network', {})
del cls._dict[uuid]
@classmethod
def get_object(cls, ip):
items = cls._dict.items()
for uuid, iip_obj in items:
if ip == iip_obj.address:
return iip_obj
return None
# end class InstanceIpKM
class ProjectKM(DBBaseKM):
_dict = {}
obj_type = 'project'
def __init__(self, uuid, obj_dict=None):
self.uuid = uuid
self.virtual_networks = set()
obj_dict = self.update(obj_dict)
self.set_children('virtual_network', obj_dict)
def update(self, obj=None):
if obj is None:
obj = self.read_obj(self.uuid)
self.name = obj['fq_name'][-1]
self.fq_name = obj['fq_name']
return obj
@classmethod
def delete(cls, uuid):
if uuid not in cls._dict:
return
obj = cls._dict[uuid]
del cls._dict[uuid]
class DomainKM(DBBaseKM):
_dict = {}
obj_type = 'domain'
def __init__(self, uuid, obj_dict=None):
self.uuid = uuid
self.update(obj_dict)
def update(self, obj=None):
if obj is None:
obj = self.read_obj(self.uuid)
self.fq_name = obj['fq_name']
@classmethod
def delete(cls, uuid):
if uuid not in cls._dict:
return
obj = cls._dict[uuid]
del cls._dict[uuid]
class SecurityGroupKM(DBBaseKM):
_dict = {}
obj_type = 'security_group'
def __init__(self, uuid, obj_dict=None):
self.uuid = uuid
self.virtual_machine_interfaces = set()
self.annotations = None
self.rule_entries = None
self.src_ns_selector = None
self.src_pod_selector = None
self.dst_pod_selector = None
self.dst_ports = None
obj_dict = self.update(obj_dict)
super(SecurityGroupKM, self).__init__(uuid, obj_dict)
def update(self, obj=None):
if obj is None:
obj = self.read_obj(self.uuid)
self.name = obj['fq_name'][-1]
self.fq_name = obj['fq_name']
self.update_multiple_refs('virtual_machine_interface', obj)
self.annotations = obj.get('annotations', None)
self._set_selectors(self.annotations)
self.rule_entries = obj.get('security_group_entries', None)
return obj
def _set_selectors(self, annotations):
if not annotations:
return
for kvp in annotations.get('key_value_pair', []):
if kvp.get('key') == 'spec':
break
specjson = json.loads(kvp.get('value'))
pod_selector = specjson.get('podSelector')
if pod_selector:
self.dst_pod_selector = pod_selector.get('matchLabels')
ingress = specjson.get('ingress')
if not ingress:
return
for rule in ingress:
self.dst_ports = rule.get('ports')
from_rule = rule.get('from')
if not from_rule:
continue
for item in from_rule or []:
ns_selector = item.get('namespaceSelector')
if ns_selector:
self.src_ns_selector = ns_selector.get('matchLabels')
continue
pod_selector = item.get('podSelector')
if pod_selector:
self.src_pod_selector = pod_selector.get('matchLabels')
@classmethod
def delete(cls, uuid):
if uuid not in cls._dict:
return
obj = cls._dict[uuid]
obj.update_multiple_refs('virtual_machine_interface', {})
super(SecurityGroupKM, cls).delete(uuid)
del cls._dict[uuid]
class FloatingIpPoolKM(DBBaseKM):
_dict = {}
obj_type = 'floating_ip_pool'
def __init__(self, uuid, obj_dict=None):
self.uuid = uuid
self.virtual_network = None
self.update(obj_dict)
def update(self, obj=None):
if obj is None:
obj = self.read_obj(self.uuid)
self.name = obj['fq_name'][-1]
self.fq_name = obj['fq_name']
self.update_single_ref('virtual_network', obj)
if 'floating_ip_pool_subnets' in obj:
self.floating_ip_pool_subnets = obj['floating_ip_pool_subnets']
@classmethod
def delete(cls, uuid):
if uuid not in cls._dict:
return
obj = cls._dict[uuid]
self.update_single_ref('virtual_network', None)
del cls._dict[uuid]
class FloatingIpKM(DBBaseKM):
_dict = {}
obj_type = 'floating_ip'
def __init__(self, uuid, obj_dict=None):
self.uuid = uuid
self.address = None
self.virtual_machine_interfaces = set()
self.virtual_ip = None
self.update(obj_dict)
# end __init__
def update(self, obj=None):
if obj is None:
obj = self.read_obj(self.uuid)
self.name = obj['fq_name'][-1]
self.fq_name = obj['fq_name']
self.address = obj['floating_ip_address']
self.update_multiple_refs('virtual_machine_interface', obj)
# end update
@classmethod
def delete(cls, uuid):
if uuid not in cls._dict:
return
obj = cls._dict[uuid]
obj.update_multiple_refs('virtual_machine_interface', {})
del cls._dict[uuid]
# end delete
# end class FloatingIpKM
class NetworkIpamKM(DBBaseKM):
_dict = {}
obj_type = 'network_ipam'
def __init__(self, uuid, obj_dict=None):
self.uuid = uuid
self.update(obj_dict)
# end __init__
def update(self, obj=None):
if obj is None:
obj = self.read_obj(self.uuid)
self.name = obj['fq_name'][-1]
self.fq_name = obj['fq_name']
# end update
@classmethod
def delete(cls, uuid):
if uuid not in cls._dict:
return
del cls._dict[uuid]
# end class NetworkIpamKM