commit a052b016b5c3a163889ca53b8e5d0ddc6635cb33
parent d3f6c928dff0fa2f5a05889939e598e8d45f7055
Author: Andreas Gruhler <andreas.gruhler@adfinis.com>
Date: Wed, 30 Jun 2021 13:55:57 +0200
add type2 hosts and baseimage
Diffstat:
5 files changed, 96 insertions(+), 17 deletions(-)
diff --git a/libvirt/terraform/inventory.tf b/libvirt/terraform/inventory.tf
@@ -0,0 +1,14 @@
+resource "null_resource" "update_inventory" {
+ triggers = {
+ # when a host id changes
+ host_ids = join(" ", concat(values(libvirt_domain.host)[*].id, values(libvirt_domain.hosts_type2)[*].id))
+ }
+ provisioner "local-exec" {
+ # recreate ansible inventory
+ command = "echo '${templatefile("${path.module}/templates/inventory.tpl", { hosts = merge(libvirt_domain.host, libvirt_domain.hosts_type2) })}' > ../ansible/inventory"
+ }
+ provisioner "local-exec" {
+ # recreate mapping of qemu VM id to hostnames
+ command = "echo '${templatefile("${path.module}/templates/qemu-config.yml.tpl", { hosts = merge(libvirt_domain.host, libvirt_domain.hosts_type2) })}' > ../ansible/qemu-config.yml"
+ }
+}
+\ No newline at end of file
diff --git a/libvirt/terraform/terraform.tfvars.example b/libvirt/terraform/terraform.tfvars.example
@@ -1,5 +1,7 @@
project = "myCluster"
hosts = ["myCluster01", "myCluster02"]
+# type2 hosts have a different baseimage, see baseimage_type2 below
+type2_hosts = ["myCluster03"]
# network = "10.66.3.0/24"
# vcpu = 1
# memory = 1024
@@ -11,4 +13,5 @@ hosts = ["myCluster01", "myCluster02"]
# baseimage = "https://cloud.centos.org/centos/8/x86_64/images/CentOS-8-GenericCloud-8.2.2004-20200611.2.x86_64.qcow2"
# baseimage = "https://linuximages.de/openstack/arch/arch-openstack-LATEST-image-bootstrap.qcow2"
# baseimage = "http://download.opensuse.org/distribution/leap/15.2/appliances/openSUSE-Leap-15.2-JeOS.x86_64-kvm-and-xen.qcow2"
-# baseimage = "http://download.opensuse.org/tumbleweed/appliances/openSUSE-Tumbleweed-JeOS.x86_64-kvm-and-xen.qcow2"
-\ No newline at end of file
+# baseimage = "http://download.opensuse.org/tumbleweed/appliances/openSUSE-Tumbleweed-JeOS.x86_64-kvm-and-xen.qcow2"
+# baseimage_type2 = ""
+\ No newline at end of file
diff --git a/libvirt/terraform/variables.tf b/libvirt/terraform/variables.tf
@@ -8,6 +8,11 @@ variable "hosts" {
default = ["node0", "node1"]
}
+variable "type2_hosts" {
+ type = list
+ default = ["node2", "node3"]
+}
+
variable "vcpu" {
type = number
default = 1
@@ -48,6 +53,12 @@ variable "baseimage" {
description = "URL to a qcow2 image used as backing image for all VMs"
}
+variable "baseimage_type2" {
+ type = string
+ default = "https://cloud-images.ubuntu.com/releases/xenial/release/ubuntu-16.04-server-cloudimg-amd64-disk1.img"
+ description = "URL to a qcow2 image used as backing image for type2 VMs"
+}
+
variable "baseimage_format" {
type = string
default = "qcow2"
diff --git a/libvirt/terraform/vms-type2.tf b/libvirt/terraform/vms-type2.tf
@@ -0,0 +1,62 @@
+resource "libvirt_volume" "base_volume_type2" {
+# resource "libvirt_volume_type2" "volume" {
+ name = "${var.project}-base"
+ pool = libvirt_pool.pool.name
+ source = var.baseimage_type2
+ format = var.baseimage_format
+
+ # todo: required for "terraform destroy"
+ depends_on = [libvirt_pool.pool]
+}
+
+resource "libvirt_volume" "volume_type2" {
+ # unique image (based on backing file) for each host
+ for_each = toset(var.type2_hosts)
+
+ name = "${var.project}-cow-${each.value}"
+ pool = libvirt_pool.pool.name
+ base_volume_id = libvirt_volume.base_volume_type2.id
+ size = var.disk
+}
+
+resource "libvirt_domain" "hosts_type2" {
+ # create each host
+ for_each = toset(var.type2_hosts)
+
+ name = each.value
+ memory = var.memory
+ vcpu = var.vcpu
+
+ cloudinit = libvirt_cloudinit_disk.commoninit.id
+ qemu_agent = true
+
+ network_interface {
+ network_name = libvirt_network.network.name
+ wait_for_lease = true
+ }
+
+ # IMPORTANT: this is a known bug on cloud images, since they expect a console
+ # we need to pass it
+ # https://bugs.launchpad.net/cloud-images/+bug/1573095
+ console {
+ type = "pty"
+ target_port = "0"
+ target_type = "serial"
+ }
+
+ console {
+ type = "pty"
+ target_type = "virtio"
+ target_port = "1"
+ }
+
+ disk {
+ volume_id = libvirt_volume.volume_type2[each.value].id
+ }
+
+ graphics {
+ type = "spice"
+ listen_type = "address"
+ autoport = true
+ }
+}
+\ No newline at end of file
diff --git a/libvirt/terraform/vms.tf b/libvirt/terraform/vms.tf
@@ -202,18 +202,4 @@ resource "null_resource" "update_cloudinit" {
# recreate cloudinit config
command = "echo '${templatefile("${path.module}/templates/cloud_init.cfg.tpl", { public_key = tls_private_key.id_rsa.public_key_openssh })}' > ./cloud_init.cfg"
}
-}
-resource "null_resource" "update_inventory" {
- triggers = {
- # when a host id changes
- host_ids = join(" ", values(libvirt_domain.host)[*].id)
- }
- provisioner "local-exec" {
- # recreate ansible inventory
- command = "echo '${templatefile("${path.module}/templates/inventory.tpl", { hosts = libvirt_domain.host })}' > ../ansible/inventory"
- }
- provisioner "local-exec" {
- # recreate mapping of qemu VM id to hostnames
- command = "echo '${templatefile("${path.module}/templates/qemu-config.yml.tpl", { hosts = libvirt_domain.host })}' > ../ansible/qemu-config.yml"
- }
-}
+}
+\ No newline at end of file
