Include optional prefix entry for vvtep under leaf to redistribute

[onurgashi]

Change Summary

Make sure we redistribute the Lo1 secondary IP for VVTEP.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Code style update (formatting, renaming)
• Refactoring (no functional changes)
• Documentation content changes
• Other (please describe):

Related Issue(s)

Fixes #564

Component(s) name

leaf-prefix-lists.j2

      20:
        action: "permit {{ vtep_loopback_network_summary }} eq 32"
{%     if vtep_vvtep_ip is defined and vtep_vvtep_ip is not none and leaf.evpn_services_l2_only == false %}
      30:
        action: "permit {{ vtep_vvtep_ip }}"
{%     endif %}

Proposed changes

How to test

Test case in virtual env

node_groups:
    DC1_LEAF1:
      evpn_services_l2_only: true
      bgp_as: 65101
      nodes:
        DC1-LEAF1A:
          id: 1
    DC1_LEAF2:
      bgp_as: 65102
      nodes:
        DC1-LEAF2A:
          id: 3

Results with and without:

LEAF1A

interface Loopback1
   description VTEP_VXLAN_Tunnel_Source
   no shutdown
   ip address 192.168.254.3/32

ip prefix-list PL-LOOPBACKS-EVPN-OVERLAY
   seq 10 permit 192.168.255.0/24 eq 32
   seq 20 permit 192.168.254.0/24 eq 32

LEAF2A

interface Loopback1
   description VTEP_VXLAN_Tunnel_Source
   no shutdown
   ip address 192.168.254.5/32
   ip address 1.1.1.1/32 secondary

ip prefix-list PL-LOOPBACKS-EVPN-OVERLAY
   seq 10 permit 192.168.255.0/24 eq 32
   seq 20 permit 192.168.254.0/24 eq 32
   seq 30 permit 1.1.1.1/32

Checklist:

• I have read the CONTRIBUTING document.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• All new and existing tests passed (pre-commit, make linting and make sanity-lint).
• I have updated molecule CI testing accordingly

[ClausHolbechArista]

LGTM!