146 lines
4.8 KiB
HCL
146 lines
4.8 KiB
HCL
resource "hcloud_server" "first_control_plane" {
|
|
name = "k3s-control-plane-0"
|
|
|
|
image = data.hcloud_image.linux.name
|
|
rescue = "linux64"
|
|
server_type = var.control_plane_server_type
|
|
location = var.location
|
|
ssh_keys = [hcloud_ssh_key.k3s.id]
|
|
firewall_ids = [hcloud_firewall.k3s.id]
|
|
placement_group_id = hcloud_placement_group.k3s_placement_group.id
|
|
|
|
labels = {
|
|
"provisioner" = "terraform",
|
|
"engine" = "k3s"
|
|
}
|
|
|
|
provisioner "file" {
|
|
content = templatefile("${path.module}/templates/config.ign.tpl", {
|
|
name = self.name
|
|
ssh_public_key = local.ssh_public_key
|
|
})
|
|
destination = "/root/config.ign"
|
|
|
|
connection {
|
|
user = "root"
|
|
private_key = local.ssh_private_key
|
|
agent_identity = local.ssh_identity
|
|
host = self.ipv4_address
|
|
}
|
|
}
|
|
|
|
# Install MicroOS
|
|
provisioner "remote-exec" {
|
|
inline = local.MicroOS_install_commands
|
|
|
|
connection {
|
|
user = "root"
|
|
private_key = local.ssh_private_key
|
|
agent_identity = local.ssh_identity
|
|
host = self.ipv4_address
|
|
}
|
|
}
|
|
|
|
# Issue a reboot command
|
|
provisioner "local-exec" {
|
|
command = "ssh ${local.ssh_args} root@${self.ipv4_address} '(sleep 2; reboot)&'; sleep 3"
|
|
}
|
|
|
|
# Wait for MicroOS to reboot and be ready
|
|
provisioner "local-exec" {
|
|
command = <<-EOT
|
|
until ssh ${local.ssh_args} -o ConnectTimeout=2 root@${self.ipv4_address} true 2> /dev/null
|
|
do
|
|
echo Waiting for ssh to be ready...
|
|
sleep 2
|
|
done
|
|
EOT
|
|
}
|
|
|
|
# Generating k3s master config file
|
|
provisioner "file" {
|
|
content = yamlencode({
|
|
node-name = self.name
|
|
cluster-init = true
|
|
disable-cloud-controller = true
|
|
disable = ["servicelb", "local-storage"]
|
|
flannel-iface = "eth1"
|
|
kubelet-arg = "cloud-provider=external"
|
|
node-ip = local.first_control_plane_network_ip
|
|
advertise-address = local.first_control_plane_network_ip
|
|
token = random_password.k3s_token.result
|
|
node-taint = var.allow_scheduling_on_control_plane ? [] : ["node-role.kubernetes.io/master:NoSchedule"]
|
|
})
|
|
destination = "/etc/rancher/k3s/config.yaml"
|
|
|
|
connection {
|
|
user = "root"
|
|
private_key = local.ssh_private_key
|
|
agent_identity = local.ssh_identity
|
|
host = self.ipv4_address
|
|
}
|
|
}
|
|
# Run the first control plane
|
|
provisioner "remote-exec" {
|
|
inline = [
|
|
"set -ex",
|
|
# first we disable automatic reboot (after transactional updates), and configure the reboot method as kured
|
|
"rebootmgrctl set-strategy off && echo 'REBOOT_METHOD=kured' > /etc/transactional-update.conf",
|
|
# then we initiate the cluster
|
|
"systemctl --now enable k3s-server",
|
|
]
|
|
|
|
connection {
|
|
user = "root"
|
|
private_key = local.ssh_private_key
|
|
agent_identity = local.ssh_identity
|
|
host = self.ipv4_address
|
|
}
|
|
}
|
|
|
|
# Get the Kubeconfig, and wait for the node to be available
|
|
provisioner "local-exec" {
|
|
command = <<-EOT
|
|
set -ex
|
|
sleep 30
|
|
scp ${local.ssh_args} root@${self.ipv4_address}:/etc/rancher/k3s/k3s.yaml ${path.module}/kubeconfig.yaml
|
|
sed -i -e 's/127.0.0.1/${self.ipv4_address}/g' ${path.module}/kubeconfig.yaml
|
|
sleep 10 && until kubectl get node ${self.name} --kubeconfig ${path.module}/kubeconfig.yaml; do sleep 5; done
|
|
EOT
|
|
}
|
|
|
|
# Install the Hetzner CCM and CSI
|
|
provisioner "local-exec" {
|
|
command = <<-EOT
|
|
set -ex
|
|
kubectl -n kube-system create secret generic hcloud --from-literal=token=${var.hcloud_token} --from-literal=network=${hcloud_network.k3s.name} --kubeconfig ${path.module}/kubeconfig.yaml
|
|
kubectl apply -k ${dirname(local_file.hetzner_ccm_config.filename)} --kubeconfig ${path.module}/kubeconfig.yaml
|
|
kubectl -n kube-system create secret generic hcloud-csi --from-literal=token=${var.hcloud_token} --kubeconfig ${path.module}/kubeconfig.yaml
|
|
kubectl apply -k ${dirname(local_file.hetzner_csi_config.filename)} --kubeconfig ${path.module}/kubeconfig.yaml
|
|
EOT
|
|
}
|
|
|
|
# Install Kured
|
|
provisioner "local-exec" {
|
|
command = <<-EOT
|
|
set -ex
|
|
kubectl -n kube-system apply -k ${dirname(local_file.kured_config.filename)} --kubeconfig ${path.module}/kubeconfig.yaml
|
|
EOT
|
|
}
|
|
|
|
# Configure the Traefik ingress controller
|
|
provisioner "local-exec" {
|
|
command = "kubectl apply -f ${local_file.traefik_config.filename} --kubeconfig ${path.module}/kubeconfig.yaml"
|
|
}
|
|
|
|
network {
|
|
network_id = hcloud_network.k3s.id
|
|
ip = local.first_control_plane_network_ip
|
|
}
|
|
|
|
depends_on = [
|
|
hcloud_network_subnet.k3s,
|
|
hcloud_firewall.k3s
|
|
]
|
|
}
|