124 lines
3.0 KiB
HCL
124 lines
3.0 KiB
HCL
# tf provider declaration
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terraform {
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# required_version = ">= 0.13"
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required_providers {
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libvirt = {
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source = "dmacvicar/libvirt"
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version = "0.6.3"
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}
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}
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}
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# provider URI for libvirt
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provider "libvirt" {
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uri = "qemu:///system"
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}
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# server settings are defined in terraform.tfvars
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# the variables here are the defaults in case no relevant terraform.tfvars setting is found
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variable "projectname" {
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type = string
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default = "vms"
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}
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variable "hosts" {
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default = {
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"vm1" = {
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name = "vm1",
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vcpu = 1,
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memory = "1024",
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diskpool = "default",
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disksize = "4000000000",
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mac = "12:12:00:12:12:00",
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},
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}
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}
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variable "baseimagediskpool" {
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type = string
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default = "default"
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}
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variable "domainname" {
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type = string
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default = "domain.local"
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}
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variable "networkname" {
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type = string
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default = "default"
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}
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variable "sourceimage" {
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type = string
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default = "https://download.fedoraproject.org/pub/fedora/linux/releases/33/Cloud/x86_64/images/Fedora-Cloud-Base-33-1.2.x86_64.qcow2"
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}
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variable "category" {
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type = string
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default = "host"
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}
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# base OS image
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resource "libvirt_volume" "baseosimage" {
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for_each = var.hosts
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# if desired, base image could be specified for a category of devices sharing
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# the base image using name = "baseosimage_${var.projectname}.${each.value.category}"
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name = "baseosimage_${var.projectname}.${each.value.name}"
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source = each.value.sourceimage
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pool = var.baseimagediskpool
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}
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# vdisk creation
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# vdisks are cloned from the base image for each of the "hosts"
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resource "libvirt_volume" "qcow2_volume" {
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for_each = var.hosts
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name = "${each.value.name}.qcow2"
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# let each baseos image have a name after the vm using it
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base_volume_id = libvirt_volume.baseosimage[each.value.name].id
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pool = each.value.diskpool
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# currently a hard constraint to only use qcow2, could become settable
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format = "qcow2"
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size = each.value.disksize
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}
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# Use cloudinit config file
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# pass certain vars to cloudinit
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data "template_file" "user_data" {
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for_each = var.hosts
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template = file("${path.module}/cloudinit.${each.value.category}.cfg")
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vars = {
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hostname = each.value.name
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domainname = var.domainname
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}
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}
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# cloudinit magic
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resource "libvirt_cloudinit_disk" "commoninit" {
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for_each = var.hosts
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name = "commoninit_${each.value.name}.iso"
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user_data = data.template_file.user_data[each.key].rendered
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}
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# net-lab domains loop
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resource "libvirt_domain" "net-lab" {
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for_each = var.hosts
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name = each.value.name
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vcpu = each.value.vcpu
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memory = each.value.memory
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network_interface {
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network_name = var.networkname
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mac = each.value.mac
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# do not wait for a lease if networkname == "host-bridge"
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wait_for_lease = var.networkname == "host-bridge" ? false : true
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}
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disk {
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volume_id = element(libvirt_volume.qcow2_volume[each.key].*.id, 1)
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}
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cloudinit = libvirt_cloudinit_disk.commoninit[each.value.name].id
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}
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output "hostnames" {
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value = [libvirt_domain.net-lab.*]
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}
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