ceph-cluster/00-installer-config.yaml

network:
  version: 2
  renderer: networkd
  ethernets:
    eth0:
      dhcp4: no
      addresses:
        - 192.168.0.200/24
      gateway4: 192.168.0.1
      nameservers:
        addresses: [8.8.8.8,168.126.63.1]