10 nodes donated by Intel for Performance testing.

These machines are configured in DHCP to receive /var/lib/tftpboot/grub/grub-x86_64.efi from the Cobbler host when PXE booting. I had trouble PXEing using BIOS mode on these machines so we're using UEFI.

Our usual cephlab_rhel.ks kickstart is not set up to do UEFI so Anaconda will stop and say the Storage Configuration needs editing.

There is an ansible module that is supposed to allow you to create bonds but it requires NetworkManager-glib which isn't in CentOS8. So I found and used https://github.com/linux-system-roles/network.

Here's the command I ran from the examples dir:

for num in {1..9}; do sed -i "s/172.21.3..*/172.21.3.$num\/20/g" officinalis.yml; ansible-playbook -e ansible_python_interpreter=/usr/bin/python3 officinalis.yml --limit o0${num}*; done; sed -i "s/172.21.3..*/172.21.3.10\/20/g" officinalis.yml; ansible-playbook -e ansible_python_interpreter=/usr/bin/python3 officinalis.yml --limit o10*

Here's the yml I used:

<pre> — - hosts: officinalis

become: true
vars:
  network_connections:

1. name: ens20f0

persistent_state: absent

1. name: ens20f1

persistent_state: absent

1. name: ens49f0

persistent_state: absent

1. name: ens49f1

persistent_state: absent

    # Create a bond profile
    - name: bond0
      state: up
      type: bond
      ip:
        address: 172.21.3.10/20
        gateway4: 172.21.15.254
      bond:
        mode: 802.3ad
      mtu: 1450

    # enslave an ethernet to the bond
    - name: ens20f0
      state: up
      type: ethernet
      master: bond0

    # enslave an ethernet to the bond
    - name: ens20f1
      state: up
      type: ethernet
      master: bond0

    # enslave an ethernet to the bond
    - name: ens49f0
      state: up
      type: ethernet
      master: bond0

    # enslave an ethernet to the bond
    - name: ens49f1
      state: up
      type: ethernet
      master: bond0

roles:
  - linux-system-roles.network

</pre>