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1366ae404b
* Replace v0.11 bracket type hints with Terraform v0.12 list expressions * Use expression syntax instead of interpolated strings, where suggested * Update DigitalOcean tutorial documentation * Define Terraform and plugin version requirements in versions.tf * Require digitalocean ~> v1.3 to support Terraform v0.12 * Require ct ~> v0.3.2 to support Terraform v0.12
100 lines
2.6 KiB
HCL
100 lines
2.6 KiB
HCL
# Controller Instance DNS records
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resource "digitalocean_record" "controllers" {
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count = var.controller_count
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# DNS zone where record should be created
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domain = var.dns_zone
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# DNS record (will be prepended to domain)
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name = var.cluster_name
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type = "A"
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ttl = 300
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# IPv4 addresses of controllers
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value = element(digitalocean_droplet.controllers.*.ipv4_address, count.index)
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}
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# Discrete DNS records for each controller's private IPv4 for etcd usage
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resource "digitalocean_record" "etcds" {
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count = var.controller_count
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# DNS zone where record should be created
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domain = var.dns_zone
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# DNS record (will be prepended to domain)
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name = "${var.cluster_name}-etcd${count.index}"
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type = "A"
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ttl = 300
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# private IPv4 address for etcd
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value = element(digitalocean_droplet.controllers.*.ipv4_address_private, count.index)
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}
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# Controller droplet instances
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resource "digitalocean_droplet" "controllers" {
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count = var.controller_count
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name = "${var.cluster_name}-controller-${count.index}"
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region = var.region
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image = var.image
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size = var.controller_type
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# network
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ipv6 = true
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private_networking = true
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user_data = element(data.ct_config.controller-ignitions.*.rendered, count.index)
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ssh_keys = var.ssh_fingerprints
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tags = [
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digitalocean_tag.controllers.id,
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]
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lifecycle {
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ignore_changes = [user_data]
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}
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}
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# Tag to label controllers
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resource "digitalocean_tag" "controllers" {
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name = "${var.cluster_name}-controller"
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}
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# Controller Ignition configs
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data "ct_config" "controller-ignitions" {
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count = var.controller_count
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content = element(data.template_file.controller-configs.*.rendered, count.index)
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pretty_print = false
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snippets = var.controller_clc_snippets
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}
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# Controller Container Linux configs
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data "template_file" "controller-configs" {
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count = var.controller_count
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template = file("${path.module}/cl/controller.yaml.tmpl")
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vars = {
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# Cannot use cyclic dependencies on controllers or their DNS records
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etcd_name = "etcd${count.index}"
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etcd_domain = "${var.cluster_name}-etcd${count.index}.${var.dns_zone}"
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# etcd0=https://cluster-etcd0.example.com,etcd1=https://cluster-etcd1.example.com,...
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etcd_initial_cluster = join(",", data.template_file.etcds.*.rendered)
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cluster_dns_service_ip = cidrhost(var.service_cidr, 10)
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cluster_domain_suffix = var.cluster_domain_suffix
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}
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}
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data "template_file" "etcds" {
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count = var.controller_count
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template = "etcd$${index}=https://$${cluster_name}-etcd$${index}.$${dns_zone}:2380"
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vars = {
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index = count.index
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cluster_name = var.cluster_name
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dns_zone = var.dns_zone
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}
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}
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