parse_arista_eos_config

Reference path:

ttp://misc/Netbox/parse_arista_eos_config.txt

---

Template to parse Arista EOS configuration and produce data structure that is easy to work with to import data into the Netbox.

This template requires output of 'show running-config' command.

---

Template Content

<template name="netbox_data" results="per_template">
<doc>
Template to parse Arista EOS configuration and produce data structure
that is easy to work with to import data into the Netbox.

This template requires output of 'show running-config' command.
</doc>

<input>
commands = [
    "show running-config"
]
</input>

<macro>
def add_interface_type(data):
    data["interface_type"] = "other"    
    if any(
        i in data["name"].lower() for i in [
            ".", "loopback", "tunnel", "vlan", "vxlan"
        ]
    ):
        data["interface_type"] = "virtual"
    elif any(
        i in data["name"].lower() for i in [
            "vlan", "vxlan"
        ]
    ):
        data["interface_type"] = "bridge"
    elif "port-channel" in data["name"].lower():
        data["interface_type"] = "lag"
    return data

def add_parent_interface(data):
    if "lag_id" in data:
        data["parent"] = "Port-Channel{}".format(data["lag_id"])
    elif "." in data["name"]:
        data["parent"] = data["name"].split(".")[0]
    return data
</macro>

## ------------------------------------------------------------------------------------------
## Global Configuration facts
## ------------------------------------------------------------------------------------------
<group name="facts**" method="table">
! device: {{ hostname }} ({{ hw_model }}, {{ os_version }})
! boot system {{ boot_system }}
hostname {{ hostname }}
mac address-table aging-time {{ mac_address_table_aging_timeout }}
errdisable recovery interval {{ errdisable_recovery_interval }}
spanning-tree mode {{ stp_mode }}
dns domain {{ domain_name }}
</group>

## ------------------------------------------------------------------------------------------
## SNMP Configuration
## ------------------------------------------------------------------------------------------
<group name="snmp**" method="table">
snmp-server chassis-id {{ chassis_id }}
snmp-server contact {{ contact }}
snmp-server location {{ location | ORPHRASE }}
snmp-server local-interface {{ source_interface }}
snmp-server vrf {{ source_vrf }}
</group>

## ------------------------------------------------------------------------------------------
## DNS Servers configuration
## ------------------------------------------------------------------------------------------
<group name="nameservers**.{{ vrf }}" method="table">
ip name-server vrf {{ vrf }} {{ name_server }}
</group>

## ------------------------------------------------------------------------------------------
## Logging configuration
## ------------------------------------------------------------------------------------------
<group name="logging**" method="table">
logging buffered {{ logging_buffered_size }} {{ logging_buffered_level }}
logging console {{ logging_console_level }}
logging vrf {{ vrf }} source-interface {{ source }}
no logging console {{ logging_concole_enabled | set(False) | default(True) }}
no logging monitor {{ logging_monitor_enabled | set(False) | default(True) }}

<group name="logging_hosts" method="table">
logging vrf {{ vrf }} host {{ host }} {{ port }} protocol {{ protocol }}
</group>
</group>

## ------------------------------------------------------------------------------------------
## Users configuration
## ------------------------------------------------------------------------------------------
<group name="users*">
username {{ username }} privilege {{ privilege }} role {{ role }} secret {{ ignore }} {{ ignore }}
</group>

## ------------------------------------------------------------------------------------------
## AAA configuration
## ------------------------------------------------------------------------------------------
<group name="tacacs.servers*">
tacacs-server host {{ server }} single-connection vrf {{ vrf }} key 7 {{ ignore }}
</group>

<group name="tacacs.groups*">
aaa group server tacacs+ {{ name }}
   <group name="servers*">
   server {{ server }} vrf {{ vrf }}
   </group>
!{{ _end_ }}
</group>

<group name="aaa**" method="table">
aaa authentication login default group {{ authentication_login | ORPHRASE }}
aaa authentication enable default {{ authentication_enable | ORPHRASE }}
aaa authorization exec default group {{ authorization_exec | ORPHRASE }}
</group>

## ------------------------------------------------------------------------------------------
## VLANs configuration
## ------------------------------------------------------------------------------------------
<group name="vlans*">
vlan {{ vlan }}
   name {{ name | ORPHRASE }}
   trunk group {{ trunk_group }}
!{{ _end_ }}
</group>   

## ------------------------------------------------------------------------------------------
## VRFs configuration
## ------------------------------------------------------------------------------------------
<group name="vrf*">
vrf instance {{ name }}
   description {{ description | re(".+") | default("") }}
   rd {{ rd }}
!{{ _end_ }}
</group>

## ------------------------------------------------------------------------------------------
## NTP configuration
## ------------------------------------------------------------------------------------------
<group name="ntp" method="table">
ntp server vrf {{ vrf }} {{ server }}
</group>

## ------------------------------------------------------------------------------------------
## Interfaces configuration
## ------------------------------------------------------------------------------------------
<group name="interfaces*" functions="contains('name') | macro('add_interface_type') | macro('add_parent_interface')">
interface {{ name | _start_ }}
   description {{ description | re(".*") | default("") }}
   mtu {{ mtu | to_int }}
   no switchport {{ is_l3_interface | set(True) }}
   vrf {{ vrf }}
   arp aging timeout {{ arp_aging_timeout }}
   ipv6 enable {{ ipv6_enabled | set(True) }}
   pim ipv4 bidirectional {{ pim_mode | set ("ipv4_bidirectional") }}
   shutdown {{ enabled | set(False) | default(True) }}
   speed forced {{ speed_forced }}
   switchport access vlan {{ access_vlan | let("mode", "access") }}
   spanning-tree portfast {{ stp_portfast_enabled | set(True) }}
   spanning-tree bpduguard enable {{ stp_bpduguard_enabled | set(True) }}
   mlag {{ mlag_id }}
   channel-group {{ lag_id }} mode {{ lacp_mode }}
   switchport trunk allowed vlan {{ trunk_vlans | unrange(rangechar='-', joinchar=',') | split(",") | joinmatches }}
   switchport mode trunk {{ mode | set("tagged") }}
   lacp system-id {{ lacp_system_id }}
   vxlan source-interface {{ vxlan_source }}
   vxlan udp-port {{ vxlan_udp_port }}

   <group name="vxlan_vlan*">
   vxlan vlan {{ vlan }} vni {{ vni }}
   </group>

   <group name="ipv4*" method="table">
   ip address {{ ip | IP }}/{{ mask }}
   ipv4 address {{ ip | IP | let("secondary", True) }}/{{ mask}} secondary
   </group>

   <group name="evpn_ethernet_segment">
   evpn ethernet-segment {{ _start_ }}
      identifier {{ identifier }}
      route-target import {{ rt_import }}
   </group>
!{{ _end_ }}
</group>

## ------------------------------------------------------------------------------------------
## SSH configuration
## ------------------------------------------------------------------------------------------
<group name="ssh_server**" method="table">
management ssh {{ _start_ }}
   <group name="vrfs*">
   vrf {{ vrf }}
      no shutdown {{ enabled | set(True) | default(False) }}
   </group>
!{{ _end_ }}      
</group>

## ------------------------------------------------------------------------------------------
## BGP configuration
## ------------------------------------------------------------------------------------------
<group name="bgp">
router bgp {{ asn }}
   router-id {{ rid }}
   bgp convergence slow-peer time {{ slow_peer_timer }}
   bgp always-compare-med {{ always_compare_med | set(True) }}
   maximum-paths {{ max_path }}  
   redistribute {{ redistribute | ORPHRASE | to_list | joinmatches }} 

   <group name="neighbors**.{{ neighbor_ip }}**" method="table">
   neighbor {{ neighbor_ip | let("is_peer_group", True) }} peer group
   neighbor {{ neighbor_ip | let("is_peer_group", False) }} peer group {{ peer_group }}
   neighbor {{ neighbor_ip }} remote-as {{ neighbor_asn }}
   neighbor {{ neighbor_ip }} out-delay { out_delay }}
   neighbor {{ neighbor_ip | let("bfd_enabled", True) }} bfd 
   neighbor {{ neighbor_ip | let("send_community", True) }} send-community
   neighbor {{ neighbor_ip }} maximum-routes {{ maxr_routes }}  
   neighbor {{ neighbor_ip }} description {{ description | re(".+") }}
   </group>

   <group name="vlan_aware_bundle*">
   vlan-aware-bundle {{ name }}
      rd {{ rd }}
      <group name="route_target.{{ type }}">
      route-target {{ type }} {{ rt }}
      </group>
      redistribute {{ redistribute | to_list | joinmatches }}
      vlan {{ vlan | unrange(rangechar='-', joinchar=',') | split(",") }}
   !{{ _end_ }}
   </group>

   <group name="afi.{{ afi }}">
   address-family {{ afi }}
      <group name="neighbors**.{{ neighbor_ip }}**" method="table">
      neighbor {{ neighbor_ip | let("active", True) }}  activate
      </group>
      network {{ networks | to_list | joinmatches }}
   !{{ _end_ }}
   </group>

   <group name="vrf**.{{ vrf }}">
   vrf {{ vrf }}
      local-as {{ local_asn }}
      router-id {{ rid }}
      redistribute {{ redistribute | ORPHRASE | to_list | joinmatches }}    

      <group name="neighbors**.{{ neighbor_ip }}**" method="table">          
      neighbor {{ neighbor_ip | let("is_peer_group", True) }} peer group
      neighbor {{ neighbor_ip | let("is_peer_group", False) }} peer group {{ peer_group }}
      neighbor {{ neighbor_ip }} remote-as {{ neighbor_asn }}
      neighbor {{ neighbor_ip }} out-delay { out_delay }}
      neighbor {{ neighbor_ip | let("bfd_enabled", True) }} bfd 
      neighbor {{ neighbor_ip | let("send_community", True) }} send-community
      neighbor {{ neighbor_ip }} maximum-routes {{ maxr_routes }}  
      neighbor {{ neighbor_ip }} description {{ description | re(".+") }}
      </group>
   </group>
!{{ _end_ }}
</group>      

## ------------------------------------------------------------------------------------------
## Multicast configuration
## ------------------------------------------------------------------------------------------
<group name="multicast">
router multicast {{ _start_ }}
   <group name="afi.{{ afi }}">
   ipv{{ afi | sformat("ipv{}") }}
      counters rate period decay {{ counters_rate_period_decay }} seconds
      routing {{ routing_enabled | set(True) }}
   </group>
!{{ _end_ }}
</group>

<group name="pim_bidir">
router pim bidirectional {{ _start_ }}
   <group name="afi.{{ afi }}">
   ipv{{ afi | sformat("ipv{}") }}
      group-expiry-timer {{ group_expiry_timer }}
      rp address {{ rp_address | ORPHRASE | split(" ") }}
   </group>
!{{ _end_ }}
</group>

## ------------------------------------------------------------------------------------------
## MC-LAG configuration
## ------------------------------------------------------------------------------------------
<group name="mlag">
mlag configuration {{ _start_ }}
   domain-id {{ domain_id }}
   local-interface {{ local_interface }}
   peer-address {{ peer_address }}
   peer-link {{ peer_link }}
!{{ _end_ }}
</group>
</template>