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Add facility to enable confignet

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Provide function to populate
a map of all networking, relative to the interface facing thte client.
This commit is contained in:
Jarrod Johnson 2021-10-27 11:52:09 -04:00
parent 154a328194
commit feb12b95cb
2 changed files with 143 additions and 12 deletions
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20
confluent_server/confluent/config/attributes.py
View File

@ -441,6 +441,19 @@ node = {
'description': 'Whether or not the indicated network interface is to be used for booting. This is used by '
'the discovery process to decide where to place the mac address of a detected PXE nic.',
},
'net.connection_name': {
'description': 'Name to use when specifiying a name for connection and/or interface name for a team. This may be the name of a team interface, '
'the connection name in network manager for the interface, or may be installed as an altname '
'as supported by the respective OS deployment profiles. Default is to accept default name for '
'a team consistent with the respective OS, or to use the matching original port name as connection name.'
},
'net.interface_names': {
'description': 'Interface name or comma delimited list of names to match for this interface. It is generally recommended '
'to leave this blank unless needing to set up interfaces that are not on a common subnet with a confluent server, '
'as confluent servers provide autodetection for matching the correct network definition to an interface.'
'This would be the default name per the deployed OS and can be a comma delimited list to denote members of '
'a team'.
},
'net.ipv4_address': {
'description': 'When configuring static, use this address. If '
'unspecified, it will check if the node name resolves '
@ -513,6 +526,13 @@ node = {
'depending on default configuration of the respective '
'operating system',
},
'net.team_mode': {
'description': 'Indicates that this interface should be a team and what mode or runner to use when teamed. '
'If this covers a deployment interface, one of the member interfaces may be brought up as '
'a standalone interface until deployment is complete, as supported by the OS deployment profile. '
'To support this scenario, the switch should be set up to allow independent operation of member ports123654 (e.g. lacp bypass mode or fallback mode).',
'validvalues': ('lacp', 'loadbalance', 'roundrobin', 'activebackup', 'none')
},
# 'id.modelnumber': {
# 'description': 'The manufacturer dictated model number for the node',
# },

135
confluent_server/confluent/netutil.py
View File

@ -144,6 +144,114 @@ def inametonets(iname):
net = socket.inet_ntoa(struct.pack('!I', net))
yield (net, mask_to_cidr(addr['netmask']), addr['addr'])
class NetManager(object):
def __init__(self, myaddrs, node, configmanager):
self.myaddrs = myaddrs
self.cfm = configmanager
self.node = node
self.myattribs = {}
self.consumednames4 = set([])
self.consumednames6 = set([])
def process_attribs(self, netname, attribs):
self.myattribs[netname] = {}
ipv4addr = None
ipv6addr = None
myattribs = self.myattribs[netname]
hwaddr = attribs.get('hwaddr', None)
if hwaddr:
myattribs['hwaddr'] = hwaddr
conname = attribs.get('connection_name', None)
if conname:
myattribs['connection_name'] = conname
iname = attribs.get('interface_names', None)
if iname:
myattribs['interface_names'] = iname
teammod = attribs.get('team_mode', None)
if teammod:
myattribs['team_mode'] = teammod
method = attribs.get('ipv4_method', None)
if method != 'dhcp':
ipv4addr = attribs.get('ipv4_address', None)
if not ipv4addr:
currname = attribs.get('hostname', self.node).split()[0]
if currname and currname not in self.consumednames4:
for ai in socket.getaddrinfo(currname, 0, socket.AF_INET, socket.SOCK_STREAM):
ipv4addr = ai[-1][0]
self.consumednames4.add(currname)
if ipv4addr:
myattribs['ipv4_method'] = 'static'
myattribs['ipv4_address'] = ipv4addr
else:
myattribs['ipv4_method'] = 'dhcp'
if attribs.get('ipv4_gateway', None) and 'ipv4_method' in self.myattribs[netname]:
myattribs['ipv4_gateway'] = attribs['ipv4_gateway']
method = attribs.get('ipv6_method', None)
if method != 'dhcp':
ipv6addr = attribs.get('ipv6_address', None)
if not ipv6addr:
currname = attribs.get('hostname', self.node).split()[0]
if currname and currname not in self.consumednames6:
for ai in socket.getaddrinfo(currname, 0, socket.AF_INET6, socket.SOCK_STREAM):
ipv6addr = ai[-1][0]
self.consumednames6.add(currname)
if ipv6addr:
myattribs['ipv6_methad'] = 'static'
myattribs['ipv6_address'] = ipv6addr
if attribs.get('ipv6_gateway', None) and 'ipv6_method' in myattribs:
myattribs['ipv6_gateway'] = attribs['ipv6_gateway']
if 'ipv4_method' not in myattribs and 'ipv6_method' not in myattribs:
del self.myattribs[netname]
return
if ipv4addr:
ipv4bytes = socket.inet_pton(socket.AF_INET, ipv4addr)
for addr in self.myaddrs:
if addr[0] != socket.AF_INET:
continue
if ipn_on_same_subnet(addr[0], addr[1], ipv4bytes, addr[2]):
myattribs['current_nic'] = True
if not myattribs.get('current_nic', False) and ipv6addr:
ipv6bytes = socket.inet_pton(socket.AF_INET6, ipv6addr)
for addr in self.myaddrs:
if addr[0] != socket.AF_INET6:
continue
if ipn_on_same_subnet(addr[0], addr[1], ipv6bytes, addr[2]):
myattribs['current_nic'] = True
if 'current_nic' not in myattribs:
myattribs['current_nic'] = False
def get_full_net_config(configmanager, node, serverip=None):
cfd = configmanager.get_node_attributes(node, ['net.*'])
cfd = cfd.get(node, {})
attribs = {}
for attrib in cfd:
val = cfd[attrib].get('value', None)
if val is None:
continue
if attrib.startswith('net.'):
attrib = attrib.replace('net.', '').rsplit('.', 1)
if len(attrib) == 1:
iface = None
attrib = attrib[0]
else:
iface, attrib = attrib
if attrib in ('switch', 'switchport', 'bootable'):
continue
if iface not in attribs:
attribs[iface] = {}
attribs[iface][attrib] = val
myaddrs = None
if serverip:
myaddrs = get_addresses_by_serverip(serverip)
nm = NetManager(myaddrs, node, configmanager)
for netname in attribs:
nm.process_attribs(netname, attribs[netname])
return nm.myattribs
# TODO(jjohnson2): have a method to arbitrate setting methods, to aid
# in correct matching of net.* based on parameters, mainly for pxe
# The scheme for pxe:
@ -213,19 +321,8 @@ def get_nic_config(configmanager, node, ip=None, mac=None, ifidx=None,
if v6broken:
cfgdata['ipv6_broken'] = True
if serverip is not None:
if '.' in serverip:
fam = socket.AF_INET
elif ':' in serverip:
fam = socket.AF_INET6
else:
raise ValueError('"{0}" is not a valid ip argument')
ipbytes = socket.inet_pton(fam, serverip)
dhcprequested = False
matchlla = None
if ipbytes[:8] == b'\xfe\x80\x00\x00\x00\x00\x00\x00':
myaddrs = get_my_addresses(matchlla=ipbytes)
else:
myaddrs = [x for x in get_my_addresses() if x[1] == ipbytes]
myaddrs = get_addresses_by_serverip(serverip)
genericmethod = 'static'
ipbynodename = None
ip6bynodename = None
@ -364,6 +461,20 @@ def get_nic_config(configmanager, node, ip=None, mac=None, ifidx=None,
break
return cfgdata
def get_addresses_by_serverip(serverip):
if '.' in serverip:
fam = socket.AF_INET
elif ':' in serverip:
fam = socket.AF_INET6
else:
raise ValueError('"{0}" is not a valid ip argument')
ipbytes = socket.inet_pton(fam, serverip)
if ipbytes[:8] == b'\xfe\x80\x00\x00\x00\x00\x00\x00':
myaddrs = get_my_addresses(matchlla=ipbytes)
else:
myaddrs = [x for x in get_my_addresses() if x[1] == ipbytes]
return myaddrs
nlhdrsz = struct.calcsize('IHHII')
ifaddrsz = struct.calcsize('BBBBI')