Running arbitrary commands on Arista devices

In this recipe, you will execute operational commands on Arista devices and use the output to validate the state of the devices:

1. Create a new playbook called pb_get_vlans.yml and populate it to execute the show vlan command on all leaf switches and store the output in a variable:

   root@cookbook-lab:~/cookbook-lab/chapters/ch04# vi pb_get_vlans.yml
   ---
   - name: “Retrieve All VLANs from Leaf Switches”
     hosts: “leafs” (1)
     tasks:
   - name: “Get All VLANs”
     arista.eos.eos_command:
       commands: show vlan | json (2)
     register: show_vlan
   - name: “Validate VLANs are Present”
     ansible.builtin.assert:
       that: (interfaces[item][‘vlan’...