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2ba0181dbe
* Replace v0.11 bracket type hints with Terraform v0.12 list expressions * Use expression syntax instead of interpolated strings, where suggested * Update AWS tutorial and worker pools documentation * Define Terraform and plugin version requirements in versions.tf * Require aws ~> 2.7 to support Terraform v0.12 * Require ct ~> 0.3.2 to support Terraform v0.12
90 lines
2.4 KiB
HCL
90 lines
2.4 KiB
HCL
# Discrete DNS records for each controller's private IPv4 for etcd usage
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resource "aws_route53_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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zone_id = var.dns_zone_id
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name = format("%s-etcd%d.%s.", var.cluster_name, count.index, var.dns_zone)
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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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records = [element(aws_instance.controllers.*.private_ip, count.index)]
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}
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# Controller instances
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resource "aws_instance" "controllers" {
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count = var.controller_count
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tags = {
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Name = "${var.cluster_name}-controller-${count.index}"
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}
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instance_type = var.controller_type
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ami = local.ami_id
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user_data = element(data.ct_config.controller-ignitions.*.rendered, count.index)
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# storage
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root_block_device {
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volume_type = var.disk_type
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volume_size = var.disk_size
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iops = var.disk_iops
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}
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# network
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associate_public_ip_address = true
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subnet_id = element(aws_subnet.public.*.id, count.index)
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vpc_security_group_ids = [aws_security_group.controller.id]
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lifecycle {
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ignore_changes = [
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ami,
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user_data,
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]
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}
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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(
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data.template_file.controller-configs.*.rendered,
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count.index,
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)
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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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kubeconfig = indent(10, module.bootkube.kubeconfig-kubelet)
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ssh_authorized_key = var.ssh_authorized_key
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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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