Mellanox Switch

This role configures Mellanox switches running MLNX-OS using the expect Ansible module.

This role will install the python expect package to the system site packages on the local machine.

Requirements

The switches should be configured to allow SSH access.

Role Variables

mellanox_switch_provider is authentication provider information, similar to the provider argument to the dellos modules. It should be a dict containing the following fields:

• host: the host or IP address of the switch.
• username: the username with which to access the switch via SSH.
• auth_pass: the password with which to authenticate.

mellanox_switch_config is a list of configuration lines to apply to the switch, and defaults to an empty list.

mellanox_switch_interface_config contains interface configuration. It is a dict mapping switch interface names to configuration dicts. Each dict may contain the following items:

• description - a description to apply to the interface.
• config - a list of per-interface configuration.

Dependencies

None

Example Playbook

The following playbook configures hosts in the mellanox-switches group. It assumes host variables for each switch holding the host, username and passwords. It applies global configuration for VLAN 42, and enables two ethernet interfaces as access mode switchports.

---
- name: Ensure Mellanox switches are configured
  hosts: mellanox-switches
  gather_facts: no
  roles:
    - role: stackhpc.mellanox-switch
      mellanox_switch_provider:
        host: "{{ switch_host }}"
        username: "{{ switch_user }}"
        auth_pass: "{{ switch_auth_pass }}"
      mellanox_switch_config:
        - "vlan 42"
        - "exit"
      mellanox_switch_interface_config:
        ethernet 1/1:
          description: server-1
          config:
            - "no shutdown"
            - "switchport mode access"
        ethernet 1/2:
          description: server-2
          config:
            - "no shutdown"
            - "switchport mode access"

Author Information

• Mark Goddard (mark@stackhpc.com)