Configure ZTP Server With CVP Collection¶

Configure management network¶

Because we want to be generic, let’s configure a DHCP server on the NAT gateway to provide a fixed DHCP address to your devices. Thus you will be able to get access to them easily. To support that, we can leverage arista.cvp.dhcp_configuration to install and configure a DHCP server.

This role requires a set of information related to your own setup:

For your out of band management network:

Subnet you are using to allocate your device’s IP.
Name server to send to your DHCP client.
Default scope for unknown devices.

For every device:

EOS device hostname you want to configure.
Mac address to use to identify a request from your device.
IP address to allocate.
An optional URI for ZTP registration.

Create an inventory file¶

Inventory contains information related to your NAT-gateway:

# inventory.yml
---
all:
  children:
    DHCP:
      hosts:
        nat_gateway:
          ansible_host: < YOUR RUNNER NETWORK>
          ansible_user: < USERNAME >
          ansible_password: < PASSWORD >

Create host variables¶

Host variables for your NAT-gateway should be defined like this:

---
ztp:
  default:
    registration: '< Optional ZTP registration URL >'
    gateway: < OOB DEFAULT GATEWAY >
    nameservers:
      - < DNS >
  general:
    subnets:
      - network: < OOB SUBNET >
        netmask: < OOB NETMASK >
        gateway: < OOB DEFAULT GATEWAY >
        nameservers:
          - < DNS >
        start: < FIRST LEASE IP >
        end: < LAST LEASE IP >
        lease_time: 300
  clients:
  # AVD/CVP Integration
    - name: DC1-SPINE1
      mac: 0c:1d:c0:1d:62:01
      ip4: 10.73.1.11
    - name: DC1-SPINE2
      mac: 0c:1d:c0:1d:62:02
      ip4: 10.73.1.12

Playbook to configure DHCP¶

Playbook is fairly simple:

---
- name: Configure DHCP Service for ZTP
  hosts: DHCP
  gather_facts: true
  tasks:
    - name: 'Execute DHCP configuration role'
      ansible.builtin.import_role:
        name: arista.cvp.dhcp_configuration

Last update: February 10, 2023