kubespray/roles/container-engine/youki/molecule/default/files/10-mynet.conf

{
  "cniVersion": "0.4.0",
  "name": "mynet",
  "type": "bridge",
  "bridge": "cni0",
  "isGateway": true,
  "ipMasq": true,
  "ipam": {
    "type": "host-local",
    "subnet": "172.19.0.0/24",
    "routes": [
      {
        "dst": "0.0.0.0/0"
      }
    ]
  }
}