`node` module is working.
Curtis Wilson
4 years ago
parent
99d7ba1c43
commit
f4889f0428
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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 = "0.6.11"
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}
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}
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}
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provider "libvirt" {
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uri = var.libvirt-connection-url
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}
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resource "libvirt_volume" "node-images" {
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name = "${var.name-prefix}-${count.index}"
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pool = var.pool-name
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source = var.base-image
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count = var.num-nodes
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format = "qcow2"
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}
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data "template_file" "node-user-datas" {
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template = file("${path.module}/cloud_init.cfg")
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vars = {
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admin-passwd = "${var.root-admin-passwd}"
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admin-pub-key = "${var.root-admin-pub-key}"
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hostname = "${var.name-prefix}-${count.index}"
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}
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count = var.num-nodes
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}
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data "template_file" "network-config" {
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template = file("${path.module}/network_config.cfg")
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}
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resource "libvirt_cloudinit_disk" "node-inits" {
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name = "${var.name-prefix}-${count.index}-init"
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user_data = element(data.template_file.node-user-datas.*.rendered, count.index)
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network_config = data.template_file.network-config.rendered
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pool = var.pool-name
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count = var.num-nodes
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}
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resource "libvirt_domain" "nodes" {
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count = var.num-nodes
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name = "${var.name-prefix}-${count.index}"
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memory = var.node-memory
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vcpu = var.node-vcpus
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cloudinit = element(libvirt_cloudinit_disk.node-inits.*.id, count.index)
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network_interface {
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network_name = "default"
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hostname = "${var.name-prefix}-${count.index}"
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}
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# IMPORTANT: this is a known bug on cloud images, since they expect a console
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# we need to pass it
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# https://bugs.launchpad.net/cloud-images/+bug/1573095
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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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console {
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type = "pty"
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target_type = "virtio"
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target_port = "1"
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}
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disk {
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volume_id = element(libvirt_volume.node-images.*.id, count.index)
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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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@ -0,0 +1,42 @@
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variable "base-image" {
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default = "https://cloud-images.ubuntu.com/releases/focal/release/ubuntu-20.04-server-cloudimg-amd64-disk-kvm.img"
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description = "The base image to be used for all nodes."
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}
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variable "libvirt-connection-url" {
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description = "The libvirt connection URI, ie. qemu+ssh://<user>@<host>/system"
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}
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variable "name-prefix" {
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default = "k8s-node"
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description = "This will be a prefix for all resource names, ie. domains will be created suck as \"k8s-node-2\"."
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}
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variable "node-memory" {
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default = "2048"
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description = "The amount of memory to be used for all the nodes."
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type = number
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}
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variable "node-vcpus" {
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default = "2"
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description = "The amount of vcpus to be used for all the nodes."
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type = number
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}
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variable "num-nodes" {
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description = "The number of nodes to create with this config."
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}
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variable "pool-name" {
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default = "default"
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description = "The name of the pool to put all disk images in."
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}
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variable "root-admin-passwd" {
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description = "This will be the password for the root and admin user. The format of this can by any format accepted by cloud-init's chpasswd module."
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}
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variable "root-admin-pub-key" {
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description = "The public key to be added to authorized_keys for the root and admin accounts."
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}
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