tf machine controller needs private key (#173)

cloud/terraform/machineactuator.go

@@ -406,7 +406,7 @@ func (tf *TerraformClient) updateMasterInPlace(goalMachine *clusterv1.Machine) e
 	// Control plane upgrade
 	if goalMachineControlPlaneVersion != currentControlPlaneVersion {
 		// Pull the kudeadm for target version K8s.
-		cmd := fmt.Sprintf("curl -sSL https://dl.k8s.io/release/%s/bin/linux/amd64/kubeadm | sudo tee /usr/bin/kubeadm > /dev/null; " +
+		cmd := fmt.Sprintf("curl -sSL https://dl.k8s.io/release/v%s/bin/linux/amd64/kubeadm | sudo tee /usr/bin/kubeadm > /dev/null; " +
 			"sudo chmod a+rx /usr/bin/kubeadm", goalMachineControlPlaneVersion)
 		_, err := tf.remoteSshCommand(goalMachine, cmd, "~/.ssh/id_rsa", "ubuntu")
 		if err != nil {

tf-deployer/vsphere_named_machines.yaml

@@ -101,6 +101,19 @@ items:
         client_device = true
       }
 
+     // Copy the private key over so the controller is able to ssh into the nodes.
+     provisioner "file" {
+       source      = "~/.ssh/vsphere_tmp"
+       destination = "~/.ssh/id_rsa"
+
+       connection {
+         type        = "ssh"
+         private_key = "${file("~/.ssh/vsphere_tmp")}"
+         user        = "ubuntu"
+         agent       = true
+       }
+     }
+
       vapp {
         properties {
           hostname = "${var.vm_name}"