Feat(eos_cli_config_gen): Added support for DHCP client accept defaul…

…t route feature in port-channel interfaces (#4767)

Co-authored-by: Mahesh Kumar <[email protected]>

ansible_collections/arista/avd/molecule/eos_cli_config_gen/documentation/devices/host1.md

@@ -3412,6 +3412,7 @@ interface Dps1
 | Ethernet65 | Multiple VRIDs | - | 192.0.2.2/25 | default | - | False | - | - |
 | Ethernet66 | Multiple VRIDs and tracking | - | 192.0.2.2/25 | default | - | False | - | - |
 | Ethernet80 | LAG Member | 17 | *192.0.2.3/31 | **default | **- | **- | **- | **- |
+| Ethernet81/2 | LAG Member LACP fallback LLDP ZTP VLAN | 112 | *dhcp | **default | **- | **- | **- | **- |
 
 *Inherited from Port-Channel Interface
 
@@ -4674,6 +4675,8 @@ interface Ethernet81/10
 | Port-Channel99 | MCAST | - | 192.0.2.10/31 | default | - | - | - | - |
 | Port-Channel100.101 | IFL for TENANT01 | - | 10.1.1.3/31 | default | 1500 | - | - | - |
 | Port-Channel100.102 | IFL for TENANT02 | - | 10.1.2.3/31 | C2 | 1500 | - | - | - |
+| Port-Channel111.400 | TENANT_A pseudowire 3 interface | - | dhcp | default | - | - | - | - |
+| Port-Channel112 | LACP fallback individual | - | dhcp | default | - | - | - | - |
 | Port-Channel113 | interface_with_mpls_enabled | - | 172.31.128.9/31 | default | - | - | - | - |
 | Port-Channel114 | interface_with_mpls_disabled | - | 172.31.128.10/31 | default | - | - | - | - |
 
@@ -5112,6 +5115,7 @@ interface Port-Channel111.400
    !
    encapsulation vlan
       client dot1q outer 400 inner 20 network dot1q outer 401 inner 21
+   ip address dhcp
 !
 interface Port-Channel111.1000
    description L2 Subinterface
@@ -5130,6 +5134,8 @@ interface Port-Channel112
    switchport trunk allowed vlan 112
    switchport mode trunk
    switchport
+   ip address dhcp
+   dhcp client accept default-route
    port-channel lacp fallback individual
    port-channel lacp fallback timeout 5
 !

ansible_collections/arista/avd/molecule/eos_cli_config_gen/intended/configs/host1.cfg

@@ -1930,6 +1930,7 @@ interface Port-Channel111.400
    !
    encapsulation vlan
       client dot1q outer 400 inner 20 network dot1q outer 401 inner 21
+   ip address dhcp
 !
 interface Port-Channel111.1000
    description L2 Subinterface
@@ -1948,6 +1949,8 @@ interface Port-Channel112
    switchport trunk allowed vlan 112
    switchport mode trunk
    switchport
+   ip address dhcp
+   dhcp client accept default-route
    port-channel lacp fallback individual
    port-channel lacp fallback timeout 5
 !

ansible_collections/arista/avd/molecule/eos_cli_config_gen/inventory/host_vars/host1/port-channel-interfaces.yml

@@ -672,6 +672,7 @@ port_channel_interfaces:
 
   - name: Port-Channel111.400
     description: TENANT_A pseudowire 3 interface
+    ip_address: dhcp
     encapsulation_vlan:
       client:
         encapsulation: dot1q
@@ -705,12 +706,16 @@ port_channel_interfaces:
         allowed_vlan: 112
     lacp_fallback_timeout: 5
     lacp_fallback_mode: individual
+    ip_address: dhcp
+    dhcp_client_accept_default_route: true
 
   - name: Port-Channel113
     description: interface_with_mpls_enabled
     switchport:
       enabled: false
     ip_address: 172.31.128.9/31
+    # This won't be rendered because IP address is not DHCP
+    dhcp_client_accept_default_route: true
     mpls:
       ip: true
       ldp:

python-avd/pyavd/_eos_cli_config_gen/j2templates/eos/port-channel-interfaces.j2

@@ -330,6 +330,9 @@ interface {{ port_channel_interface.name }}
 {%     if port_channel_interface.ip_address is arista.avd.defined %}
    ip address {{ port_channel_interface.ip_address }}
 {%     endif %}
+{%     if port_channel_interface.ip_address is arista.avd.defined("dhcp") and port_channel_interface.dhcp_client_accept_default_route is arista.avd.defined(true) %}
+   dhcp client accept default-route
+{%     endif %}
 {%     if port_channel_interface.ip_verify_unicast_source_reachable_via is arista.avd.defined %}
    ip verify unicast source reachable-via {{ port_channel_interface.ip_verify_unicast_source_reachable_via }}
 {%     endif %}

python-avd/pyavd/_eos_cli_config_gen/schema/schema_fragments/port_channel_interfaces.schema.yml

@@ -801,7 +801,10 @@ keys:
                 Hence, MPASS is needed only on MLAG port-channels connected to non-Arista devices.
         ip_address:
           type: str
-          description: IPv4 address/mask.
+          description: IPv4 address/mask or "dhcp".
+        dhcp_client_accept_default_route:
+          type: bool
+          description: Install default-route obtained via DHCP.
         ip_verify_unicast_source_reachable_via:
           type: str
           valid_values: