Creating Terraform Module for VMware VMs with ability to add disks dynamically
Robert Tilson
Creating a module for VM creation in VMware. Looking to clone a VM template.
So the hangup is when the need is to add more disks that just the single disk that the template provides, or add a disk in the future if needed
I don't know if adding another disk section in the virtual machine resource and setting the variable type to map using interpolation syntax would work?
If would be nice if there was a way to use something like jinja for templating.
Module work in progress:
data "vsphere_datacenter" "dc" {
name = "${var.vmw_dc}"
}
data "vsphere_datastore" "datastore" {
name = "${var.vmw_datastore}"
datacenter_id = "${data.vsphere_datacenter.dc.id}"
}
data "vsphere_resource_pool" "pool" {
name = "${var.vmw_cluster}"
datacenter_id = "${data.vsphere_datacenter.dc.id}"
}
data "vsphere_network" "network" {
name = "${var.vmw_network}"
datacenter_id = "${data.vsphere_datacenter.dc.id}"
}
resource "vsphere_virtual_machine" "vm" {
name = "${var.vm_name}"
resource_pool_id = "${data.vsphere_resource_pool.pool.id}"
datastore_id = "${data.vsphere_datastore.datastore.id}"
num_cpus = "${var.vm_cpu}"
memory = "${var.vm_mem}"
guest_id = "${var.vm_GuestType}"
network_interface {
network_id = "${data.vsphere_network.network.id}"
}
disk {
label = "disk0"
size = 20
}
disk {
label = "${var.vm_disk.*.label, count.index}"
}
}
Doing this as a non-module would be easy. Just have a bunch of resource declarations like the above code. Or create a module and just pass the variables through in module per VM needing created.
The above would work for a single disk VM if you ignore the second Disk declaration. But if I need to add the second disk a second disk declaration is needed and a third and so on.
So I want sure if creating a map or a list of map variable that contains Disk2 through X then in the second disk declaration the other disks will get rendered when executing terraform plan.
"vm_disk" = {
Disk2 = {label=X,Size=X,Position=X},
Disk3 = {label=X,Size=X,Position=X},
Disk4 = {label=X,Size=X,Position=X},
}
