18.14. Configuring an ethtool coalesce setting by using the network RHEL system role

Procedure

1. Create a playbook file, for example, ~/playbook.yml, with the following content:

   ---
   - name: Configure the network
     hosts: managed-node-01.example.com
     tasks:
       - name: Ethernet connection profile with dynamic IP address settings and coalesce settings
         ansible.builtin.include_role:
           name: redhat.rhel_system_roles.network
         vars:
           network_connections:
             - name: enp1s0
               type: ethernet
               autoconnect: yes
               ip:
                 dhcp4: yes
                 auto6: yes
               ethtool:
                 coalesce:
                   rx_frames: 128
                   tx_frames: 128
               state: up

   The settings specified in the example playbook include the following:

   rx_frames: <value>

   Sets the number of RX frames.

   gso: <value>

   Sets the number of TX frames.

   For details about all variables used in the playbook, see the /usr/share/ansible/roles/rhel-system-roles.network/README.md file on the control node.

2. Validate the playbook syntax:

   $ ansible-playbook --syntax-check ~/playbook.yml

   Note that this command only validates the syntax and does not protect against a wrong but valid configuration.

3. Run the playbook:

   $ ansible-playbook ~/playbook.yml