kjuulh/terraform-hcloud-kube-hetzner
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This commit is contained in:
Henk van Maanen
2022-04-06 20:38:24 +02:00
parent 4e3f34585e
commit 5e4d82fd95
6 changed files with 58 additions and 43 deletions
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27
control_planes.tf
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@@ -1,7 +1,8 @@
module "control_planes" {
source = "./modules/host"
count = var.control_plane_count
for_each = local.control_plane_nodepools
name = "${var.use_cluster_name_in_node_name ? "${var.cluster_name}-" : ""}control-plane"
ssh_keys = [hcloud_ssh_key.k3s.id]
public_key = var.public_key
@@ -9,13 +10,13 @@ module "control_planes" {
additional_public_keys = var.additional_public_keys
firewall_ids = [hcloud_firewall.k3s.id]
placement_group_id = hcloud_placement_group.k3s.id
location = var.location
server_type = var.control_plane_server_type
location = each.value.location
server_type = each.value.server_type
ipv4_subnet_id = hcloud_network_subnet.subnet[1].id
# We leave some room so 100 eventual Hetzner LBs that can be created perfectly safely
# It leaves the subnet with 254 x 254 - 100 = 64416 IPs to use, so probably enough.
private_ipv4 = cidrhost(local.network_ipv4_subnets[1], count.index + 101)
private_ipv4 = cidrhost(local.network_ipv4_subnets[1], length([for i, v in var.control_plane_nodepools : i if v.name == each.value.nodepool_name]) + each.value.index + 101)
labels = {
"provisioner" = "terraform",
@@ -28,33 +29,33 @@ module "control_planes" {
}
resource "null_resource" "control_planes" {
count = var.control_plane_count
for_each = local.control_plane_nodepools
triggers = {
control_plane_id = module.control_planes[count.index].id
control_plane_id = module.control_planes[each.key].id
}
connection {
user = "root"
private_key = local.ssh_private_key
agent_identity = local.ssh_identity
host = module.control_planes[count.index].ipv4_address
host = module.control_planes[each.key].ipv4_address
}
# Generating k3s server config file
provisioner "file" {
content = yamlencode({
node-name = module.control_planes[count.index].name
server = "https://${element(module.control_planes.*.private_ipv4_address, count.index > 0 ? 0 : 1)}:6443"
node-name = module.control_planes[each.key].name
server = "https://${local.first_control_plane.private_ipv4_address}:6443"
token = random_password.k3s_token.result
disable-cloud-controller = true
disable = local.disable_extras
flannel-iface = "eth1"
kubelet-arg = "cloud-provider=external"
node-ip = module.control_planes[count.index].private_ipv4_address
advertise-address = module.control_planes[count.index].private_ipv4_address
node-taint = var.allow_scheduling_on_control_plane ? [] : ["node-role.kubernetes.io/master:NoSchedule"]
node-label = var.automatically_upgrade_k3s ? ["k3s_upgrade=true"] : []
node-ip = module.control_planes[each.key].private_ipv4_address
advertise-address = module.control_planes[each.key].private_ipv4_address
node-label = each.value.labels
node-taint = each.value.taints
})
destination = "/tmp/config.yaml"
}