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main.tf
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main.tf
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terraform {
required_providers {
libvirt = {
source = "dmacvicar/libvirt"
}
}
}
provider "libvirt" {
uri = "qemu:///system"
}
resource "libvirt_network" "k8s" {
name = "k8s"
mode = "nat"
domain = "k8s.local"
addresses = ["10.10.0.0/24"]
dns {
enabled = true
}
xml {
# By default, DHCP range is the whole subnet.
# We will eventually want virtual IPs, so try to make space for them.
# XSLT (I have no idea what I'm doing),
# because of https://github.com/dmacvicar/terraform-provider-libvirt/issues/794
xslt = <<EOF
<?xml version="1.0" ?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:template match="node()|@*">
<xsl:copy>
<xsl:apply-templates select="node()|@*"/>
</xsl:copy>
</xsl:template>
<xsl:template match="/network/ip/dhcp/range">
<xsl:copy>
<xsl:attribute name="start">10.10.0.100</xsl:attribute>
<xsl:apply-templates select="@*[not(local-name()='start')]|node()"/>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
EOF
}
}
module "replicas" {
for_each = {
"etcd" : {
"count" : var.etcd_instances,
"memory" : 1024,
}
"controlplane" : {
"count" : var.control_plane_instances,
"memory" : 1024,
}
"worker" : {
"count" : var.worker_instances,
"memory" : 2048,
}
"loadbalancer" : {
"count" : var.load_balancer_instances,
"memory" : 1024,
}
}
source = "./replicas"
name = each.key
num_replicas = each.value.count
memory = each.value.memory
network_id = libvirt_network.k8s.id
volume_id = libvirt_volume.debian_boot.id
}
variable "etcd_instances" {
type = number
description = "Amount of etcd hosts to spawn"
}
variable "control_plane_instances" {
type = number
description = "Amount of control plane hosts to spawn"
}
variable "worker_instances" {
type = number
description = "Amount of worker hosts to spawn"
}
variable "load_balancer_instances" {
type = number
description = "Amount of control plane load balancer hosts to spawn"
}