platform_guide.rst

NXOS Platform Options

The Cisco NXOS supports multiple connections. This page offers details on how each connection works in Ansible and how to use it.

• Connections available
• Using CLI in Ansible
  • Example CLI group_vars/nxos.yml
  • Note
  • Example CLI task
• Using NX-API in Ansible
  • Enabling NX-API
  • Example NX-API group_vars/nxos.yml
  • Example NX-API task
  • Warning
• Cisco Nexus platform support matrix
  • Notes

Connections available

	CLI	NX-API
Protocol	SSH	HTTP(S)
Credentials	uses SSH keys / SSH-agent if present accepts -u myuser -k if using password	uses HTTPS certificates if present
Indirect Access	by a bastion (jump host)	by a web proxy
Connection Settings	ansible_connection: ansible.netcommon.network_cli	ansible_connection: ansible.netcommon.httpapi
Enable Mode	supported: use ansible_become: true with ansible_become_method: enable and ansible_become_password:	not supported by NX-API
Returned Data Format	stdout[0].	stdout[0].messages[0].

Using CLI in Ansible

Example CLI group_vars/nxos.yml

ansible_connection: ansible.netcommon.network_cli
ansible_network_os: cisco.nxos.nxos
ansible_user: myuser
ansible_password: !vault...
ansible_become: true
ansible_become_method: enable
ansible_become_password: !vault...
ansible_ssh_common_args: '-o ProxyCommand="ssh -W %h:%p -q bastion01"'

• If you are using SSH keys (including an ssh-agent) you can remove the ansible_password configuration.
• If you are accessing your host directly (not through a bastion/jump host) you can remove the ansible_ssh_common_args configuration.
• If you are accessing your host through a bastion/jump host, you cannot include your SSH password in the ProxyCommand directive. To prevent secrets from leaking out (for example in ps output), SSH does not support providing passwords through environment variables.

Note

When using ansible_connection: ansible.netcommon.network_cli, the ansible_user must have permissions to execute the terminal length 0 and terminal width 511 commands on the target device.

Example CLI task

- name: Backup current switch config (nxos)
  cisco.nxos.nxos_config:
    backup: yes
  register: backup_nxos_location
  when: ansible_network_os == 'cisco.nxos.nxos'

Using NX-API in Ansible

Enabling NX-API

Before you can use NX-API to connect to a switch, you must enable NX-API. To enable NX-API on a new switch through Ansible, use the nxos_nxapi module through the CLI connection. Set up group_vars/nxos.yml just like in the CLI example above, then run a playbook task like this:

- name: Enable NX-API
   cisco.nxos.nxos_nxapi:
       enable_http: yes
       enable_https: yes
   when: ansible_network_os == 'cisco.nxos.nxos'

To find out more about the options for enabling HTTP/HTTPS and local http see the :ref:`nxos_nxapi <nxos_nxapi_module>` module documentation.

Once NX-API is enabled, change your group_vars/nxos.yml to use the NX-API connection.

Example NX-API group_vars/nxos.yml

ansible_connection: ansible.netcommon.httpapi
ansible_network_os: cisco.nxos.nxos
ansible_user: myuser
ansible_password: !vault...
proxy_env:
  http_proxy: http://proxy.example.com:8080

• If you are accessing your host directly (not through a web proxy) you can remove the proxy_env configuration.
• If you are accessing your host through a web proxy using https, change http_proxy to https_proxy.

Example NX-API task

- name: Backup current switch config (nxos)
  cisco.nxos.nxos_config:
    backup: yes
  register: backup_nxos_location
  environment: "{{ proxy_env }}"
  when: ansible_network_os == 'cisco.nxos.nxos'

In this example the proxy_env variable defined in group_vars gets passed to the environment option of the module used in the task.

Warning

Never store passwords in plain text. We recommend using SSH keys to authenticate SSH connections. Ansible supports ssh-agent to manage your SSH keys. If you must use passwords to authenticate SSH connections, we recommend encrypting them with Ansible Vault.

Cisco Nexus platform support matrix

The following platforms and software versions have been certified by Cisco to work with this version of Ansible.

Platform / Software Minimum Requirements

Supported Platforms	Minimum NX-OS Version
Cisco Nexus N3k	7.0(3)I2(5) and later
Cisco Nexus N9k	7.0(3)I2(5) and later
Cisco Nexus N5k	7.3(0)N1(1) and later
Cisco Nexus N6k	7.3(0)N1(1) and later
Cisco Nexus N7k	7.3(0)D1(1) and later
Cisco Nexus MDS	8.4(1) and later (Please see individual module documentation for compatibility)

Platform Models

Platform	Description
N3k	Support includes N30xx, N31xx and N35xx models
N5k	Support includes all N5xxx models
N6k	Support includes all N6xxx models
N7k	Support includes all N7xxx models
N9k	Support includes all N9xxx models
MDS	Support includes all MDS 9xxx models

Notes

Setting Timeout Option