override.json

{
  "cluster": {
      "disable_public_service_endpoint": true,
      "entitlement": "cloud_pak",
      "kube_version": "default",
      "machine_type": "bx2.4x16",
      "name": "easy-vpc-roks-cluster",
      "subnets": [
          "subnet-zone-1"
      ],
      "wait_till": "IngressReady",
      "workers_per_zone": 2
  },
  "vpc": {
      "address_prefixes": null,
      "classic_access": false,
      "default_network_acl_name": null,
      "default_routing_table_name": null,
      "default_security_group_name": null,
      "network_acls": [
          {
              "add_cluster_rules": true,
              "name": "acl",
              "rules": []
          }
      ],
      "routes": [],
      "subnets": {
          "zone-1": [
              {
                  "acl_name": "acl",
                  "cidr": "10.10.10.0/24",
                  "name": "subnet-zone-1",
                  "public_gateway": true
              }
          ],
          "zone-2": [
              {
                  "acl_name": "acl",
                  "cidr": "10.20.10.0/24",
                  "name": "subnet-zone-2",
                  "public_gateway": true
              }
          ],
          "zone-3": [
              {
                  "acl_name": "acl",
                  "cidr": "10.30.10.0/24",
                  "name": "subnet-zone-3",
                  "public_gateway": true
              }
          ]
      },
      "use_manual_address_prefixes": null,
      "use_public_gateways": {
          "zone-1": true,
          "zone-2": true,
          "zone-3": true
      },
      "vpc_name": "vpc",
      "vpn_gateways": []
  },
  "prefix": "easy-vpc"
}