nclu – Configure network interfaces using NCLU

Synopsis

• Interface to the Network Command Line Utility, developed to make it easier to configure operating systems running ifupdown2 and Quagga, such as Cumulus Linux. Command documentation is available at https://docs.cumulusnetworks.com/cumulus-linux/System-Configuration/Network-Command-Line-Utility-NCLU/

Parameters

Parameter	Choices/Defaults	Comments
abort boolean	Choices: no ← yes	Boolean. When true, perform a 'net abort' before the block. This cleans out any uncommitted changes in the buffer. Mutually exclusive with atomic.
atomic boolean	Choices: no ← yes	When true, equivalent to both commit and abort being true. Mutually exclusive with commit and atomic.
commands -		A list of strings containing the net commands to run. Mutually exclusive with template.
commit boolean	Choices: no ← yes	When true, performs a 'net commit' at the end of the block. Mutually exclusive with atomic.
description -	Default: "Ansible-originated commit"	Commit description that will be recorded to the commit log if commit or atomic are true.
template -		A single, multi-line string with jinja2 formatting. This string will be broken by lines, and each line will be run through net. Mutually exclusive with commands.

Examples

- name: Add two interfaces without committing any changes
  nclu:
    commands:
        - add int swp1
        - add int swp2

- name: Modify hostname to Cumulus-1 and commit the change
  nclu:
    commands:
        - add hostname Cumulus-1
    commit: true

- name: Add 48 interfaces and commit the change.
  nclu:
    template: |
        {% for iface in range(1,49) %}
        add int swp{{iface}}
        {% endfor %}
    commit: true
    description: "Ansible - add swps1-48"

- name: Fetch Status Of Interface
  nclu:
    commands:
        - show interface swp1
  register: output

- name: Print Status Of Interface
  debug:
    var: output

- name: Fetch Details From All Interfaces In JSON Format
  nclu:
    commands:
        - show interface json
  register: output

- name: Print Interface Details
  debug:
    var: output["msg"]

- name: Atomically add an interface
  nclu:
    commands:
        - add int swp1
    atomic: true
    description: "Ansible - add swp1"

- name: Remove IP address from interface swp1
  nclu:
    commands:
        - del int swp1 ip address 1.1.1.1/24

- name: Configure BGP AS and add 2 EBGP neighbors using BGP Unnumbered
  nclu:
    commands:
        - add bgp autonomous-system 65000
        - add bgp neighbor swp51 interface remote-as external
        - add bgp neighbor swp52 interface remote-as external
    commit: true

- name: Configure BGP AS and Add 2 EBGP neighbors Using BGP Unnumbered via Template
  nclu:
    template: |
      {% for neighbor in range(51,53) %}
      add bgp neighbor swp{{neighbor}} interface remote-as external
      add bgp autonomous-system 65000
      {% endfor %}
    atomic: true

- name: Check BGP Status
  nclu:
    commands:
        - show bgp summary json
  register: output

- name: Print BGP Status In JSON
  debug:
    var: output["msg"]

Return Values

Common return values are documented here, the following are the fields unique to this module:

Key	Returned	Description
changed boolean	changed	whether the interface was changed Sample: True
msg string	always	human-readable report of success or failure Sample: interface bond0 config updated

Status

• This module is not guaranteed to have a backwards compatible interface. [preview]
• This module is maintained by the Ansible Community. [community]

Authors

• Cumulus Networks (@isharacomix)

Hint

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