127 lines
3.5 KiB
HCL
127 lines
3.5 KiB
HCL
# example of creating routed networks and placing vms on each
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#
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# documentation:
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# https://registry.terraform.io/providers/dmacvicar/libvirt/latest/docs/resources/network
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# list of hosts to be created, use 'for_each' on relevant resources
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locals {
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seedvm = {
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"routed1" = { os_code_name = "focal", network = "routed140", prefixIP = "192.168.140", octetIP = "10", vcpu=2, memoryMB=1024*2 },
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"routed2" = { os_code_name = "focal", network = "routed141", prefixIP = "192.168.141", octetIP = "10", vcpu=2, memoryMB=1024*2 }
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}
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networks = {
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"routed140" = { mode="route", address="192.168.140.0/24", domain="home.lab", dns_forwarder="127.0.0.1"},
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"routed141" = { mode="route", address="192.168.141.0/24", domain="home.lab", dns_forwarder="127.0.0.1"},
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}
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}
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resource "libvirt_network" "routed" {
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for_each = local.networks
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name = each.key
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# nat|none|route|bridge
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mode = each.value.mode
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addresses = [ each.value.address ]
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domain = each.value.domain
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dns {
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enabled = true
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local_only = false
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forwarders { address= each.value.dns_forwarder }
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}
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dhcp { enabled = false }
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autostart = true
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}
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# fetch the latest ubuntu release image from their mirrors
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resource "libvirt_volume" "os_image" {
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for_each = local.seedvm
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name = "${each.key}.qcow2"
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pool = var.diskPool
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source = "https://cloud-images.ubuntu.com/${each.value.os_code_name}/current/${each.value.os_code_name}-server-cloudimg-amd64${ each.value.os_code_name == "xenial" ? "-disk1":"" }.img"
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format = "qcow2"
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}
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# Use CloudInit ISO to add ssh-key to the instance
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resource "libvirt_cloudinit_disk" "cloudinit" {
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for_each = local.seedvm
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name = "${each.key}-cloudinit.iso"
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pool = var.diskPool
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user_data = data.template_file.user_data[each.key].rendered
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network_config = data.template_file.network_config[each.key].rendered
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}
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data "template_file" "user_data" {
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for_each = local.seedvm
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template = file("${path.module}/cloud_init.cfg")
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vars = {
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hostname = each.key
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fqdn = "${each.key}.${var.dns_domain}"
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password = var.password
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}
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}
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data "template_file" "network_config" {
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for_each = local.seedvm
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template = file("${path.module}/network_config_${var.ip_type}.cfg")
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vars = {
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domain = var.dns_domain
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prefixIP = each.value.prefixIP
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octetIP = each.value.octetIP
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}
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}
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# Create the machine
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resource "libvirt_domain" "domain-ubuntu" {
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for_each = local.seedvm
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# domain name in libvirt, not hostname
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name = "${each.key}-${each.value.prefixIP}.${each.value.octetIP}"
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memory = each.value.memoryMB
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vcpu = each.value.vcpu
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disk { volume_id = libvirt_volume.os_image[each.key].id }
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network_interface {
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network_name = "${each.value.network}"
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}
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cloudinit = libvirt_cloudinit_disk.cloudinit[each.key].id
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# IMPORTANT
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# Ubuntu can hang is a isa-serial is not present at boot time.
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# If you find your CPU 100% and never is available this is why
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console {
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type = "pty"
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target_port = "0"
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target_type = "serial"
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}
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graphics {
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type = "spice"
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listen_type = "address"
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autoport = "true"
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}
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}
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output "routed_networks" {
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value = zipmap(
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values(libvirt_domain.domain-ubuntu)[*].name,
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values(libvirt_domain.domain-ubuntu)[*].network_interface[*]
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)
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}
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output "hosts" {
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# output does not support 'for_each', so use zipmap as workaround
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value = zipmap(
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values(libvirt_domain.domain-ubuntu)[*].name,
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values(libvirt_domain.domain-ubuntu)[*].vcpu
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)
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}
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