typhoon/aws/container-linux/kubernetes/controllers.tf
Dalton Hubble 343db5b578 Remove references to CoreOS Container Linux
* CoreOS Container Linux was deprecated in v1.18.3 (May 2020)
in favor of Fedora CoreOS and Flatcar Linux. CoreOS Container
Linux references were kept to give folks more time to migrate,
but AMIs have now been deleted. Time is up.

Rel: https://coreos.com/os/eol/
2020-09-24 20:51:02 -07:00

89 lines
2.5 KiB
HCL

# Discrete DNS records for each controller's private IPv4 for etcd usage
resource "aws_route53_record" "etcds" {
count = var.controller_count
# DNS Zone where record should be created
zone_id = var.dns_zone_id
name = format("%s-etcd%d.%s.", var.cluster_name, count.index, var.dns_zone)
type = "A"
ttl = 300
# private IPv4 address for etcd
records = [aws_instance.controllers.*.private_ip[count.index]]
}
# Controller instances
resource "aws_instance" "controllers" {
count = var.controller_count
tags = {
Name = "${var.cluster_name}-controller-${count.index}"
}
instance_type = var.controller_type
ami = local.ami_id
user_data = data.ct_config.controller-ignitions.*.rendered[count.index]
# storage
root_block_device {
volume_type = var.disk_type
volume_size = var.disk_size
iops = var.disk_iops
encrypted = true
}
# network
associate_public_ip_address = true
subnet_id = element(aws_subnet.public.*.id, count.index)
vpc_security_group_ids = [aws_security_group.controller.id]
lifecycle {
ignore_changes = [
ami,
user_data,
]
}
}
# Controller Ignition configs
data "ct_config" "controller-ignitions" {
count = var.controller_count
content = data.template_file.controller-configs.*.rendered[count.index]
strict = true
snippets = var.controller_snippets
}
# Controller Container Linux configs
data "template_file" "controller-configs" {
count = var.controller_count
template = file("${path.module}/cl/controller.yaml")
vars = {
# Cannot use cyclic dependencies on controllers or their DNS records
etcd_name = "etcd${count.index}"
etcd_domain = "${var.cluster_name}-etcd${count.index}.${var.dns_zone}"
# etcd0=https://cluster-etcd0.example.com,etcd1=https://cluster-etcd1.example.com,...
etcd_initial_cluster = join(",", data.template_file.etcds.*.rendered)
cgroup_driver = local.channel == "edge" ? "systemd" : "cgroupfs"
kubeconfig = indent(10, module.bootstrap.kubeconfig-kubelet)
ssh_authorized_key = var.ssh_authorized_key
cluster_dns_service_ip = cidrhost(var.service_cidr, 10)
cluster_domain_suffix = var.cluster_domain_suffix
}
}
data "template_file" "etcds" {
count = var.controller_count
template = "etcd$${index}=https://$${cluster_name}-etcd$${index}.$${dns_zone}:2380"
vars = {
index = count.index
cluster_name = var.cluster_name
dns_zone = var.dns_zone
}
}