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dmulyalin
Error on parser netmiko output
I'm creating lib to get configuration from Huawei equipment with Netmiko and TTP.
When I run my code I receive this error message:
group.get_regexes: variable not found in line: 'dis_cur_conf_vpn_instance.ttp'
Here files with codes.
TTP file:
<group name="vpns">
ip vpn-instance {{ name | _start_ }}
description {{ description }}
traffic-statistics {{ traffic_statistics }}
ipv4-family
route-distinguisher {{ rd }}
vpn {{ frr }}
export route-policy {{ export_route_policy }}
import route-policy {{ import_route_policy }}
tnl-policy {{ tunnel_policy }}
apply-label {{ apply_label }}
vpn-target {{ rts_export | to_list | joinmatches }} export-extcommunity
vpn-target {{ rts_import | to_list | joinmatches }} import-extcommunity
#{{ _end_ }}
</group>
Class python:
from pprint import pprint
from netmiko import ConnectHandler
from models import Vpn
from ssh.types import Device
class Huawei:
device: Device
conn: ConnectHandler
def __init__(self, device: Device):
self.device = device
def connect(self) -> None:
self.conn = ConnectHandler(device_type=self.device.type,
ip=self.device.ip,
host=self.device.host,
username=self.device.username,
password=self.device.password)
def no_more(self) -> None:
self.conn.send_command("screen-length 0 temporary")
def get_vpns(self) -> None:
output = self.conn.send_command("display current-configuration configuration vpn-instance",
use_ttp=True, ttp_template="dis_cur_conf_vpn_instance.ttp")
pprint(output)
and original output from netmiko without ttp:
#
ip vpn-instance GER-LTE
ipv4-family
route-distinguisher 10429:902041026
tnl-policy LB
apply-label per-instance
vpn-target 10429:16026 export-extcommunity
vpn-target 10429:16026 import-extcommunity
#
ip vpn-instance RMG3G-TIM-VIV-IAS-IUPS-UP
ipv4-family
route-distinguisher 26615:36911
tnl-policy LB
vpn-target 26615:36910 export-extcommunity
vpn-target 26615:30911 import-extcommunity
vpn-target 26615:30851 import-extcommunity
vpn-target 26615:30711 import-extcommunity
vpn-target 26615:30611 import-extcommunity
vpn-target 26615:30213 import-extcommunity
vpn-target 26615:30113 import-extcommunity
#
ip vpn-instance RS-LTE-OI-TIM-PROVEDOR
ipv4-family
route-distinguisher 8167:9151
tnl-policy LB
apply-label per-instance
vpn-target 8167:9151 export-extcommunity
vpn-target 8167:9152 import-extcommunity
#
ip vpn-instance RS-LTE-OI-TIM-PROVEDOR-S
ipv4-family
route-distinguisher 8167:9153
tnl-policy LB
apply-label per-instance
vpn-target 8167:9152 export-extcommunity
vpn-target 8167:9151 import-extcommunity
#
ip vpn-instance RS-LTE-OI-TIM-TOMADOR
ipv4-family
route-distinguisher 8167:9101
tnl-policy LB
apply-label per-instance
vpn-target 10429:16025 export-extcommunity
vpn-target 7738:9101 export-extcommunity
vpn-target 10429:16025 import-extcommunity
vpn-target 7738:9102 import-extcommunity
#
ip vpn-instance RS-LTE-TIM-PROVEDOR
ipv4-family
route-distinguisher 26615:9151
tnl-policy LB
apply-label per-instance
vpn-target 26615:9151 export-extcommunity
vpn-target 26615:9152 import-extcommunity
#
ip vpn-instance RS-LTE-TIM-PROVEDOR-S
ipv4-family
route-distinguisher 26615:9153
tnl-policy LB
apply-label per-instance
vpn-target 26615:9152 export-extcommunity
vpn-target 26615:9151 import-extcommunity
#
ip vpn-instance RS-LTE-TIM-TOMADOR
ipv4-family
route-distinguisher 26615:9101
tnl-policy LB
apply-label per-instance
vpn-target 26615:9101 export-extcommunity
vpn-target 10429:16025 export-extcommunity
vpn-target 26615:9102 import-extcommunity
vpn-target 10429:16025 import-extcommunity
#
ip vpn-instance RS3G-CLR-VIV-PVD-IAS-IUPS-UP
ipv4-family
route-distinguisher 22085:32024
tnl-policy LB
vpn-target 22085:32024 export-extcommunity
vpn-target 10429:20624 export-extcommunity
vpn-target 26599:10 export-extcommunity
vpn-target 22085:32024 import-extcommunity
vpn-target 26599:10 import-extcommunity
vpn-target 10429:20624 import-extcommunity
#
ip vpn-instance RS3G-TIM-VIV-PVD-IAS-IUPS-UP
ipv4-family
route-distinguisher 26615:32024
import route-policy RS3G-TIM-VIV-PVD-FROM-SERVICE
vpn-target 26615:32024 export-extcommunity
vpn-target 26599:10 import-extcommunity
vpn-target 10429:20624 import-extcommunity
vpn-target 26615:32024 import-extcommunity
#
ip vpn-instance RS3G-TIM-VIV-TMD-IAS-IUPS-UP
ipv4-family
route-distinguisher 26615:31024
import route-policy RS3G-TIM-VIV-TMD-FROM-SERVICE
vpn-target 26615:31024 export-extcommunity
vpn-target 26599:10 import-extcommunity
vpn-target 10429:20624 import-extcommunity
vpn-target 26615:31024 import-extcommunity
#
ip vpn-instance SERVICO
ipv4-family
route-distinguisher 10429:902041025
tnl-policy LB
apply-label per-instance
vpn-target 10429:16025 export-extcommunity
vpn-target 10429:25517 export-extcommunity
vpn-target 10429:25519 export-extcommunity
vpn-target 10429:16025 import-extcommunity
vpn-target 10429:25517 import-extcommunity
vpn-target 10429:25518 import-extcommunity
vpn-target 10429:25519 import-extcommunity
vpn-target 10429:25520 import-extcommunity
#
ip vpn-instance V13092:IuPS-UP
ipv4-family
route-distinguisher 10429:12748
tnl-policy LB
vpn-target 10429:20624 export-extcommunity
vpn-target 10429:20624 import-extcommunity
vpn-target 22085:32024 import-extcommunity
vpn-target 26615:32024 import-extcommunity
#
ip dcn vpn-instance __dcn_vpn__
ipv4-family
#
return
Before writed the code, I tested with https://textfsm.nornir.tech/ and that's work.
Tks,
Paulo
Hi, as per docs:
:param ttp_template: Name of template to parse output with; can be fully qualified
path, relative path, or name of file in current directory. (default: None).
:type ttp_template: str
do you have file "dis_cur_conf_vpn_instance.ttp" in current working directory next to your script? Might want to try passing absolute path or template content.
Also, may want to check Netmiko run_ttp method as it might make it simpler to achieve functionality your are after
Hi.
My file there is the same directory...
I changed to absolute path and got with one error: group.get_regexes: variable not found in line: ' ipv4-family'
group.get_regexes: variable not found in line: ' ipv4-family'
[[{'vpns': [{'apply_label': 'per-instance',
'name': 'GER-LTE',
'rd': '10429:902041026',
'rts_export': ['10429:16026'],
'rts_import': ['10429:16026'],
'tunnel_policy': 'LB'},
{'name': 'RMG3G-TIM-VIV-IAS-IUPS-UP',
'rd': '26615:36911',
'rts_export': ['26615:36910'],
'rts_import': ['26615:30911',
'26615:30851',
'26615:30711',
'26615:30611',
'26615:30213',
'26615:30113'],
'tunnel_policy': 'LB'},
{'apply_label': 'per-instance',
'name': 'RS-LTE-OI-VIVO-PROVEDOR',
'rd': '8167:9151',
'rts_export': ['8167:9151'],
'rts_import': ['8167:9152'],
'tunnel_policy': 'LB'},
{'apply_label': 'per-instance',
'name': 'RS-LTE-OI-VIVO-PROVEDOR-S',
'rd': '8167:9153',
'rts_export': ['8167:9152'],
'rts_import': ['8167:9151'],
'tunnel_policy': 'LB'},
{'apply_label': 'per-instance',
'name': 'RS-LTE-OI-VIVO-TOMADOR',
'rd': '8167:9101',
'rts_export': ['10429:16025', '7738:9101'],
'rts_import': ['10429:16025', '7738:9102'],
'tunnel_policy': 'LB'},
{'apply_label': 'per-instance',
'name': 'RS-LTE-TIM-VIVO-PROVEDOR',
'rd': '26615:9151',
'rts_export': ['26615:9151'],
'rts_import': ['26615:9152'],
'tunnel_policy': 'LB'},
{'apply_label': 'per-instance',
'name': 'RS-LTE-TIM-VIVO-PROVEDOR-S',
'rd': '26615:9153',
'rts_export': ['26615:9152'],
'rts_import': ['26615:9151'],
'tunnel_policy': 'LB'},
{'apply_label': 'per-instance',
'name': 'RS-LTE-TIM-VIVO-TOMADOR',
'rd': '26615:9101',
'rts_export': ['26615:9101', '10429:16025'],
'rts_import': ['26615:9102', '10429:16025'],
'tunnel_policy': 'LB'},
{'name': 'RS3G-CLR-VIV-PVD-IAS-IUPS-UP',
'rd': '22085:32024',
'rts_export': ['22085:32024', '10429:20624', '26599:10'],
'rts_import': ['22085:32024', '26599:10', '10429:20624'],
'tunnel_policy': 'LB'},
{'import_route_policy': 'RS3G-TIM-VIV-PVD-FROM-SERVICE',
'name': 'RS3G-TIM-VIV-PVD-IAS-IUPS-UP',
'rd': '26615:32024',
'rts_export': ['26615:32024'],
'rts_import': ['26599:10', '10429:20624', '26615:32024']},
{'import_route_policy': 'RS3G-TIM-VIV-TMD-FROM-SERVICE',
'name': 'RS3G-TIM-VIV-TMD-IAS-IUPS-UP',
'rd': '26615:31024',
'rts_export': ['26615:31024'],
'rts_import': ['26599:10', '10429:20624', '26615:31024']},
{'apply_label': 'per-instance',
'name': 'SERVICO-LTE',
'rd': '10429:902041025',
'rts_export': ['10429:16025', '10429:25517', '10429:25519'],
'rts_import': ['10429:16025',
'10429:25517',
'10429:25518',
'10429:25519',
'10429:25520'],
'tunnel_policy': 'LB'},
{'name': 'V13092:IuPS-UP',
'rd': '10429:12748',
'rts_export': ['10429:20624'],
'rts_import': ['10429:20624', '22085:32024', '26615:32024'],
'tunnel_policy': 'LB'}]}]]
For both ways run_ttp and send_command with ttp option.
Why I need to do this way?
Tks,
Paulo
The error happened because the final ouput mismatch.
ip dcn vpn-instance __dcn_vpn__
ipv4-family
#
return
error: group.get_regexes: variable not found in line: ' ipv4-family' - you seeing this error because ipv4-family line does not contain any {{ variables }}
In theory relative OS path should work as well, not sure why its notworking in your case, you can pass ttp template string as well instead of path to file.