2022-02-06 08:40:51 +01:00
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|
resource "hcloud_server" "control_planes" {
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|
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count = var.servers_num - 1
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|
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name = "k3s-control-plane-${count.index + 1}"
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image = data.hcloud_image.linux.name
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rescue = "linux64"
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server_type = var.control_plane_server_type
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location = var.location
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ssh_keys = [hcloud_ssh_key.k3s.id]
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firewall_ids = [hcloud_firewall.k3s.id]
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2022-02-10 03:01:40 +01:00
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placement_group_id = hcloud_placement_group.k3s.id
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2022-02-06 08:40:51 +01:00
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|
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labels = {
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"provisioner" = "terraform",
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|
|
"engine" = "k3s",
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}
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|
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|
2022-02-11 16:00:19 +01:00
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connection {
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|
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user = "root"
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|
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private_key = local.ssh_private_key
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|
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agent_identity = local.ssh_identity
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|
|
|
host = self.ipv4_address
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|
|
|
}
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|
|
|
|
2022-02-06 08:40:51 +01:00
|
|
|
provisioner "file" {
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|
|
|
content = templatefile("${path.module}/templates/config.ign.tpl", {
|
|
|
|
name = self.name
|
|
|
|
ssh_public_key = local.ssh_public_key
|
|
|
|
})
|
|
|
|
destination = "/root/config.ign"
|
|
|
|
}
|
|
|
|
|
2022-02-17 13:19:21 +01:00
|
|
|
# Combustion script file to install k3s-selinux
|
|
|
|
provisioner "file" {
|
|
|
|
content = local.combustion_script
|
|
|
|
destination = "/root/script"
|
|
|
|
}
|
|
|
|
|
2022-02-06 08:40:51 +01:00
|
|
|
# Install MicroOS
|
|
|
|
provisioner "remote-exec" {
|
2022-02-16 03:18:40 +01:00
|
|
|
inline = local.microOS_install_commands
|
2022-02-06 08:40:51 +01:00
|
|
|
}
|
|
|
|
|
2022-02-16 03:18:40 +01:00
|
|
|
# Issue a reboot command and wait for the node to reboot
|
2022-02-07 09:11:07 +01:00
|
|
|
provisioner "local-exec" {
|
2022-02-18 01:13:28 +01:00
|
|
|
command = "ssh ${local.ssh_args} root@${self.ipv4_address} '(sleep 2; reboot)&'; sleep 3"
|
2022-02-07 09:11:07 +01:00
|
|
|
}
|
2022-02-06 08:40:51 +01:00
|
|
|
provisioner "local-exec" {
|
2022-02-07 22:50:44 +01:00
|
|
|
command = <<-EOT
|
|
|
|
until ssh ${local.ssh_args} -o ConnectTimeout=2 root@${self.ipv4_address} true 2> /dev/null
|
|
|
|
do
|
2022-02-10 03:31:20 +01:00
|
|
|
echo "Waiting for MicroOS to reboot and become available..."
|
2022-02-18 01:13:28 +01:00
|
|
|
sleep 3
|
2022-02-07 22:50:44 +01:00
|
|
|
done
|
|
|
|
EOT
|
2022-02-06 08:40:51 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
# Generating k3s server config file
|
|
|
|
provisioner "file" {
|
2022-02-07 12:56:13 +01:00
|
|
|
content = yamlencode({
|
|
|
|
node-name = self.name
|
|
|
|
server = "https://${local.first_control_plane_network_ip}:6443"
|
2022-02-16 04:24:20 +01:00
|
|
|
token = random_password.k3s_token.result
|
2022-02-07 12:56:13 +01:00
|
|
|
cluster-init = true
|
|
|
|
disable-cloud-controller = true
|
|
|
|
disable = "servicelb, local-storage"
|
|
|
|
flannel-iface = "eth1"
|
|
|
|
kubelet-arg = "cloud-provider=external"
|
2022-02-16 10:56:22 +01:00
|
|
|
node-ip = cidrhost(hcloud_network_subnet.k3s.ip_range, 258 + count.index)
|
|
|
|
advertise-address = cidrhost(hcloud_network_subnet.k3s.ip_range, 258 + count.index)
|
|
|
|
tls-san = cidrhost(hcloud_network_subnet.k3s.ip_range, 258 + count.index)
|
2022-02-08 09:12:16 +01:00
|
|
|
node-taint = var.allow_scheduling_on_control_plane ? [] : ["node-role.kubernetes.io/master:NoSchedule"]
|
2022-02-16 11:06:47 +01:00
|
|
|
node-label = var.automatically_upgrade_k3s ? ["k3s_upgrade=true"] : []
|
2022-02-06 08:40:51 +01:00
|
|
|
})
|
2022-02-16 03:18:40 +01:00
|
|
|
destination = "/tmp/config.yaml"
|
|
|
|
}
|
|
|
|
|
|
|
|
# Install k3s server
|
|
|
|
provisioner "remote-exec" {
|
|
|
|
inline = local.install_k3s_server
|
|
|
|
}
|
|
|
|
|
|
|
|
# Upon reboot verify that the k3s server starts correctly
|
2022-02-06 08:40:51 +01:00
|
|
|
provisioner "remote-exec" {
|
|
|
|
inline = [
|
2022-02-17 13:19:21 +01:00
|
|
|
"systemctl start k3s",
|
2022-02-10 03:01:40 +01:00
|
|
|
<<-EOT
|
2022-02-16 03:18:40 +01:00
|
|
|
timeout 120 bash <<EOF
|
|
|
|
until systemctl status k3s > /dev/null; do
|
|
|
|
echo "Waiting for the k3s server to start..."
|
2022-02-16 04:24:20 +01:00
|
|
|
sleep 2
|
2022-02-10 03:01:40 +01:00
|
|
|
done
|
2022-02-16 03:18:40 +01:00
|
|
|
EOF
|
2022-02-10 03:01:40 +01:00
|
|
|
EOT
|
2022-02-06 08:40:51 +01:00
|
|
|
]
|
|
|
|
}
|
|
|
|
|
|
|
|
network {
|
|
|
|
network_id = hcloud_network.k3s.id
|
2022-02-16 10:56:22 +01:00
|
|
|
ip = cidrhost(hcloud_network_subnet.k3s.ip_range, 258 + count.index)
|
2022-02-06 08:40:51 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
depends_on = [
|
|
|
|
hcloud_server.first_control_plane,
|
|
|
|
hcloud_network_subnet.k3s
|
|
|
|
]
|
|
|
|
}
|