If XO has connection to multiple XCP NG hosts, how do you tell which host to create the VM in

My XO currently has three XCP NG hosts connected to it.

Looked at the documentation for this provider but not sure how to tell the tf script to use a specific host. Tried to create a sample VM and got the following error:

Error: jsonrpc2: code -32000 message: unknown error from the peer

  on main.tf line 53, in resource "xenorchestra_vm" "base":
  53: resource "xenorchestra_vm" "base" {

This is the tf script used:

provider "xenorchestra" {
  url = "ws://XO_IP_HERE"
  username = "USERNAME"
  password = "PASSWORD"
}

data "xenorchestra_template" "template" {
  name_label = "Ubuntu Bionic Beaver 18.04"
}

data "xenorchestra_pif" "pif" {
  device = "eth0"
  vlan = -1
}

resource "xenorchestra_cloud_config" "base" {
  name = "cloudconfig"
  template = <<EOF
#cloud-init
tiemzone: America/New_York
hostname: terraformtest
package_update: true
package_upgrade: true
users:
  - name: test
    gecos: Test User
    groups: sudo
    passwd: test
    sudo: ['ALL=(ALL) NOPASSWD:ALL']

network:
  version: 2
  ethernets:
    eno1:
      dhcp4: no
      addresses: [192.168.0.40/24]
      gateway4: 192.168.0.1
      nameservers:
         addresses: [192.168.0.1]

runcmd:
 - [ ls, -l, / ]
 - [ sh, -xc, "echo $(date) ': hello world!'" ]
 - [ sh, -c, echo "=========hello world'=========" ]
 - ls -l /root
EOF
}

resource "xenorchestra_vm" "base" {
    memory_max = 1073733632
    cpus  = 2
    cloud_config = "${xenorchestra_cloud_config.base.template}"
    name_label = "TerraformVM"
    name_description = "Created by Terraform Script"
    template = "${data.xenorchestra_template.template.id}"
    network {
        network_id = "${data.xenorchestra_pif.pif.network}"
    }

    disk {
      sr_id = "388ccc18-9b21-22cc-dfa9-db4c8c3a4959"
      name_label = "Terraform_disk_imavo"
      size = 32212254720
    }
}

Is there something in the tf script that's not correct? Also, how can I tell which host to use?

Thanks

vatesfr / terraform-provider-xenorchestra

If XO has connection to multiple XCP NG hosts, how do you tell which host to create the VM in #29