While doing project on Terraform with VMware vSphere: Terraform module clone VMware vSphere Linux and Windows virtual machine, I was receiving below error while deployment. VM was getting deployed but VM customization was running into error and failing.
│ Error:
│ Virtual machine customization failed on "/Asgard/vm/os-windows":
│
│ An error occurred while customizing VM os-windows. For details reference the log file C:/Windows/TEMP/vmware-imc/guestcust.log in the guest OS.
│
│ The virtual machine has not been deleted to assist with troubleshooting. If
│ corrective steps are taken without modifying the "customize" block of the
│ resource configuration, the resource will need to be tainted before trying
│ again. For more information on how to do this, see the following page:
│ https://www.terraform.io/docs/commands/taint.html
│
│
│ with module.virtual_machine["server02"].vsphere_virtual_machine.windowsvm[0],
│ on modules\vsphere_vm\main.tf line 64, in resource "vsphere_virtual_machine" "windowsvm":
│ 64: resource "vsphere_virtual_machine" "windowsvm" {
│
In actual VM is cloned but when you see cloned new Virtual Machine configuration, it is half cooked VM, network adapter is disconnected as network customization has not happened properly.
This is specifically happens to cloned windows VMs. For this solution is source VMware Windows Template which you are going to clone should not be already sysprep 'ed. As Terraform will do the sysprep in the code in customization section Using terraform to clone a virtual machine on VMware vSphere infrastructure.
The main reason is When Terraform is doing the customization, sysprep'ed VM is restarted multiple times, which breaks the terraform process.
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