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[minigraph]: Adding new secondary field to VLAN_INTERFACE table (#16827)

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This is change taken as part of the HLD: sonic-net/SONiC#1470.
In this PR we add the logic to parse the SecondarySubnets field in the minigraph and add a flag in "secondary" in the vlan_interface table of the config db.

Microsoft ADO (number only): 16784946

How I did it
Made changes in the minigraph.py to parse the xml entry and add the parsed value to the config db

How to verify it
Added python tests in the sonic-config-engine folder to test the config db entries.
This commit is contained in:
Shashanka Balakuntala 2023-11-23 04:36:20 +05:30 committed by Ying Xie
parent c0963db5a3
commit fad1081b2f
4 changed files with 35 additions and 1 deletions
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17
src/sonic-config-engine/minigraph.py
View File

@ -686,6 +686,17 @@ def parse_dpg(dpg, hname):
if vlanmac is not None and vlanmac.text is not None:
vlan_attributes['mac'] = vlanmac.text
vintf_node = vintf.find(str(QName(ns, "SecondarySubnets")))
if vintf_node is not None and vintf_node.text is not None:
subnets = vintf_node.text.split(';')
for subnet in subnets:
if sys.version_info >= (3, 0):
network_def = ipaddress.ip_network(subnet, strict=False)
else:
network_def = ipaddress.ip_network(unicode(subnet), strict=False)
prefix = str(network_def[1]) + "/" + str(network_def.prefixlen)
intfs[(vintfname, prefix)]["secondary"] = "true"
sonic_vlan_name = "Vlan%s" % vlanid
if sonic_vlan_name != vintfname:
vlan_attributes['alias'] = vintfname
@ -1729,6 +1740,9 @@ def parse_xml(filename, platform=None, port_config_file=None, asic_name=None, hw
if intf[0][0:4] == 'Vlan':
vlan_intfs[intf] = {}
if "secondary" in intfs[intf]:
vlan_intfs[intf]["secondary"] = "true"
if bool(results['PEER_SWITCH']):
vlan_intfs[intf[0]] = {
'proxy_arp': 'enabled',
@ -1739,6 +1753,9 @@ def parse_xml(filename, platform=None, port_config_file=None, asic_name=None, hw
elif intf[0] in vlan_invert_mapping:
vlan_intfs[(vlan_invert_mapping[intf[0]], intf[1])] = {}
if "secondary" in intfs[intf]:
vlan_intfs[(vlan_invert_mapping[intf[0]], intf[1])]["secondary"] = "true"
if bool(results['PEER_SWITCH']):
vlan_intfs[vlan_invert_mapping[intf[0]]] = {
'proxy_arp': 'enabled',

6
src/sonic-config-engine/tests/simple-sample-graph-case.xml
View File

@ -138,6 +138,7 @@
<VlanID>1000</VlanID>
<Tag>1000</Tag>
<Subnets>192.168.0.0/27</Subnets>
<SecondarySubnets>192.168.1.0/27</SecondarySubnets>
<MacAddress>00:aa:bb:cc:dd:ee</MacAddress>
</VlanInterface>
<VlanInterface>
@ -176,6 +177,11 @@
<AttachTo>ab1</AttachTo>
<Prefix>192.168.0.1/27</Prefix>
</IPInterface>
<IPInterface>
<Name i:nil="true"/>
<AttachTo>ab1</AttachTo>
<Prefix>192.168.1.1/27</Prefix>
</IPInterface>
</IPInterfaces>
<DataAcls/>
<AclInterfaces>

8
src/sonic-config-engine/tests/test_minigraph_case.py
View File

@ -139,7 +139,10 @@ class TestCfgGenCaseInsensitive(TestCase):
def test_minigraph_vlan_interfaces_keys(self):
argument = ['-m', self.sample_graph, '-p', self.port_config, '-v', "VLAN_INTERFACE.keys()|list"]
output = self.run_script(argument)
self.assertEqual(output.strip(), "[('Vlan1000', '192.168.0.1/27'), 'Vlan1000']")
expected_list_dict = {
'list': ['Vlan1000', 'Vlan1000|192.168.0.1/27', 'Vlan1000|192.168.1.1/27']
}
self.assertEqual(utils.liststr_to_dict(output.strip()), expected_list_dict)
def test_minigraph_vlan_interfaces(self):
argument = ['-m', self.sample_graph, '-p', self.port_config, '-v', "VLAN_INTERFACE"]
@ -149,6 +152,9 @@ class TestCfgGenCaseInsensitive(TestCase):
'Vlan1000': {
'proxy_arp': 'enabled',
'grat_arp': 'enabled'
},
'Vlan1000|192.168.1.1/27': {
'secondary': 'true'
}
}
self.assertEqual(utils.to_dict(output.strip()), expected_table)

5
src/sonic-yang-models/yang-models/sonic-vlan.yang
View File

@ -158,6 +158,11 @@ module sonic-vlan {
(contains(../ip-prefix, '.') and current()='IPv4')";
type stypes:ip-family;
}
leaf secondary {
description "Optional field to specify if the prefix is secondary subnet";
type boolean;
}
}
/* end of VLAN_INTERFACE_LIST */
}