Solution Approach - Open NX-OS

Host File

The hosts file leveraged for this specific use-case:

  cisco@linux-dev:~/nxos-ansible$ more hosts  
  [all:vars]  
  ansible_connection = local  

  [spine]  
  dean  
  cisco@linux-dev:~/nxos-ansible$

The playbook used for this particular use-case

  cisco@linux-dev:~/nxos-ansible/ansible_playbooks$ more vlans.yml  
  # vlans.yml  
  ---

  - name: VLANs  
    hosts: all  
    connection: local  
    gather_facts: no  
 

    tasks:  
      - name: ensure VLANs 2-20 and 99 exist on all switches  
        nxos_vlan: vlan_id="2-20,99" state=present host={{ inventory_hostname }}  

      - name: config VLANs names for a few VLANs  
        nxos_vlan: vlan_id={{ item.vid }} name={{ item.name }} host={{ inventory_hostname }} state=present  
        with_items:  
          - { vid: 2, name: web }  
          - { vid: 3, name: app }  
          - { vid: 4, name: db }  
          - { vid: 20, name: server }  
          - { vid: 99, name: native }

Checking VLAN

In this step we are verifying the VLANS are not configured in the switch

  n9k-sw-1# sh vlan brief

VLAN	Name	Status	Ports
1	default	active	Eth1/1, Eth1/2, Eth1/3, Eth1/4
			Eth1/5, Eth1/6, Eth1/7, Eth1/8
			Eth1/9, Eth1/10, Eth1/11
			Eth1/12, Eth1/13, Eth1/14
			Eth1/15, Eth1/16, Eth1/17
			Eth1/18, Eth1/19, Eth1/20
			Eth1/21, Eth1/22, Eth1/23
			Eth1/24, Eth1/25, Eth1/26
			Eth1/27, Eth1/28, Eth1/29
			Eth1/30, Eth1/31, Eth1/32
			Eth1/33, Eth1/34, Eth1/35
			Eth1/36, Eth1/37, Eth1/38
			Eth1/39, Eth1/40, Eth1/41
			Eth1/42, Eth1/43, Eth1/44
			Eth1/45, Eth1/46, Eth1/47
			Eth1/48, Eth1/49, Eth1/50
			Eth1/51, Eth1/52, Eth1/53
			Eth1/54

  n9k-sw-1#

Execute Playbook

Now run the playbook by executing ansible-playbook vlans.yml

  cisco@linux-dev:~/nxos-ansible/ansible_playbooks$ ansible-playbook vlans.yml

PLAY [VLANs] ******************************************************************

TASK: [ensure VLANs 2-20 and 99 exist on all switches] ************************
changed: [dean]

TASK: [config VLANs names for a few VLANs] ************************************
changed: [dean] => (item={'name': 'web', 'vid': 2})
changed: [dean] => (item={'name': 'app', 'vid': 3})
changed: [dean] => (item={'name': 'db', 'vid': 4})
changed: [dean] => (item={'name': 'server', 'vid': 20})
changed: [dean] => (item={'name': 'native', 'vid': 99})

PLAY RECAP ********************************************************************
dean : ok=2 changed=2 unreachable=0 failed=0

cisco@linux-dev:~/nxos-ansible/ansible_playbooks$

Verify VLAN Creation

Check the switch to verify the VLANs have been created

  n9k-sw-1# sh vlan brief

VLAN	Name	Status	Ports
1	default	active	Eth1/1, Eth1/2, Eth1/3, Eth1/4
			Eth1/5, Eth1/6, Eth1/7, Eth1/8
			Eth1/9, Eth1/10, Eth1/11
			Eth1/12, Eth1/13, Eth1/14
			Eth1/15, Eth1/16, Eth1/17
			Eth1/18, Eth1/19, Eth1/20
			Eth1/21, Eth1/22, Eth1/23
			Eth1/24, Eth1/25, Eth1/26
			Eth1/27, Eth1/28, Eth1/29
			Eth1/30, Eth1/31, Eth1/32
			Eth1/33, Eth1/34, Eth1/35
			Eth1/36, Eth1/37, Eth1/38
			Eth1/39, Eth1/40, Eth1/41
			Eth1/42, Eth1/43, Eth1/44
			Eth1/45, Eth1/46, Eth1/47
			Eth1/48, Eth1/49, Eth1/50
			Eth1/51, Eth1/52, Eth1/53
			Eth1/54
2	web	active
3	app	active
4	db	active
5	VLAN0005	active
6	VLAN0006	active
7	VLAN0007	active
8	VLAN0008	active
9	VLAN0009	active
10	VLAN0010	active
11	VLAN0011	active
12	VLAN0012	active
13	VLAN0013	active
14	VLAN0014	active
15	VLAN0015	active
16	VLAN0016	active
17	VLAN0017	active
18	VLAN0018	active
19	VLAN0019	active
20	server	active
99	native	active