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[GCU] Add vlanintf-validator #2697

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Mar 9, 2023
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6 changes: 6 additions & 0 deletions generic_config_updater/generic_config_updater.conf.json
Original file line number Diff line number Diff line change
Expand Up @@ -48,6 +48,9 @@
},
"NTP_SERVER": {
"services_to_validate": [ "ntp-service" ]
},
"VLAN_INTERFACE": {
"services_to_validate": [ "vlanintf-service" ]
}
},
"services": {
Expand All @@ -71,6 +74,9 @@
},
"ntp-service": {
"validate_commands": [ "generic_config_updater.services_validator.ntp_validator" ]
},
"vlanintf-service": {
"validate_commands": [ "generic_config_updater.services_validator.vlanintf_validator" ]
}
}
}
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21 changes: 21 additions & 0 deletions generic_config_updater/services_validator.py
Original file line number Diff line number Diff line change
Expand Up @@ -101,3 +101,24 @@ def caclmgrd_validator(old_config, upd_config, keys):

def ntp_validator(old_config, upd_config, keys):
return _service_restart("ntp-config")

def vlanintf_validator(old_config, upd_config, keys):
old_vlan_intf = old_config.get("VLAN_INTERFACE", {})
upd_vlan_intf = upd_config.get("VLAN_INTERFACE", {})

# Get the tuple with format (iface, iface_ip) then check deleted tuple
# Example:
# old_keys = [("Vlan1000", "192.168.0.1")]
# upd_keys = [("Vlan1000", "192.168.0.2")]
old_keys = [ tuple(key.split("|"))
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for key in old_vlan_intf if len(key.split("|")) == 2 ]
upd_keys = [ tuple(key.split("|"))
for key in upd_vlan_intf if len(key.split("|")) == 2 ]

deleted_keys = list(set(old_keys) - set(upd_keys))
for key in deleted_keys:
iface, iface_ip = key
rc = os.system(f"ip neigh flush dev {iface} {iface_ip}")
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@qiluo-msft qiluo-msft Mar 1, 2023

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system

Add unit test if this is a bug fix. #Closed

if not rc:
return False
return True
51 changes: 50 additions & 1 deletion tests/generic_config_updater/service_validator_test.py
Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@
from collections import defaultdict
from unittest.mock import patch

from generic_config_updater.services_validator import vlan_validator, rsyslog_validator, caclmgrd_validator
from generic_config_updater.services_validator import vlan_validator, rsyslog_validator, caclmgrd_validator, vlanintf_validator
import generic_config_updater.gu_common


Expand Down Expand Up @@ -152,6 +152,46 @@ def mock_time_sleep_call(sleep_time):
{ "cmd": "systemctl restart rsyslog", "rc": 1 }, # restart again; fails
]

test_vlanintf_data = [
{ "old": {}, "upd": {}, "cmd": "" },
{
"old": { "VLAN_INTERFACE": {
"Vlan1000": {},
"Vlan1000|192.168.0.1/21": {} } },
"upd": { "VLAN_INTERFACE": {
"Vlan1000": {},
"Vlan1000|192.168.0.1/21": {} } },
"cmd": ""
},
{
"old": { "VLAN_INTERFACE": {
"Vlan1000": {},
"Vlan1000|192.168.0.1/21": {} } },
"upd": { "VLAN_INTERFACE": {
"Vlan1000": {},
"Vlan1000|192.168.0.2/21": {} } },
"cmd": "ip neigh flush dev Vlan1000 192.168.0.1/21"
},
{
"old": { "VLAN_INTERFACE": {
"Vlan1000": {},
"Vlan1000|192.168.0.1/21": {} } },
"upd": { "VLAN_INTERFACE": {
"Vlan1000": {},
"Vlan1000|192.168.0.1/21": {},
"Vlan1000|192.168.0.2/21": {} } },
"cmd": ""
},
{
"old": { "VLAN_INTERFACE": {
"Vlan1000": {},
"Vlan1000|192.168.0.1/21": {} } },
"upd": {},
"cmd": "ip neigh flush dev Vlan1000 192.168.0.1/21"
}
]


class TestServiceValidator(unittest.TestCase):

@patch("generic_config_updater.change_applier.os.system")
Expand All @@ -177,6 +217,15 @@ def test_change_apply_os_system(self, mock_os_sys):
rc = rsyslog_validator("", "", "")
assert not rc, "rsyslog_validator expected to fail"

os_system_calls = []
os_system_call_index = 0
for entry in test_vlanintf_data:
if entry["cmd"]:
os_system_calls.append({"cmd": entry["cmd"], "rc": 0 })
msg = "case failed: {}".format(str(entry))

vlanintf_validator(entry["old"], entry["upd"], None)

@patch("generic_config_updater.services_validator.time.sleep")
def test_change_apply_time_sleep(self, mock_time_sleep):
global time_sleep_calls, time_sleep_call_index
Expand Down