From 07822ea3f2239cf9cd3335ad2d7fb0aab7a3e1dc Mon Sep 17 00:00:00 2001
From: makefunstuff <plugatariov@gmail.com>
Date: Thu, 18 Jul 2024 22:09:37 +0300
Subject: infra updates

---
 terraform/cloud-init.cfg   |  9 +++++++
 terraform/configure-k3s.sh | 22 +++++++++++++++++
 terraform/main.tf          | 60 ++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 91 insertions(+)
 create mode 100644 terraform/cloud-init.cfg
 create mode 100755 terraform/configure-k3s.sh
 create mode 100644 terraform/main.tf

(limited to 'terraform')

diff --git a/terraform/cloud-init.cfg b/terraform/cloud-init.cfg
new file mode 100644
index 0000000..75fa7c7
--- /dev/null
+++ b/terraform/cloud-init.cfg
@@ -0,0 +1,9 @@
+
+#cloud-config
+hostname: k3s-node
+ssh_authorized_keys:
+  - ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAr9Y6...your-public-key... user@hostname
+runcmd:
+  - echo "#!/bin/bash" > /usr/local/bin/k3s-install.sh
+  - echo "curl -sfL https://get.k3s.io | sh -" >> /usr/local/bin/k3s-install.sh
+  - chmod +x /usr/local/bin/k3s-install.sh
diff --git a/terraform/configure-k3s.sh b/terraform/configure-k3s.sh
new file mode 100755
index 0000000..76076d7
--- /dev/null
+++ b/terraform/configure-k3s.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+
+# Get the IP addresses from Terraform output
+MASTER_IP=$(terraform output -json k8s_node_ips | jq -r '.[0]')
+WORKER_IPS=$(terraform output -json k8s_node_ips | jq -r '.[1,2]')
+
+# Set up the master node
+ssh ubuntu@$MASTER_IP <<EOF
+sudo /usr/local/bin/k3s-install.sh
+EOF
+
+# Get the K3s token
+K3S_TOKEN=$(ssh ubuntu@$MASTER_IP "sudo cat /var/lib/rancher/k3s/server/node-token")
+
+# Join worker nodes to the cluster
+for WORKER_IP in $WORKER_IPS; do
+  ssh ubuntu@$WORKER_IP <<EOF
+sudo K3S_URL=https://$MASTER_IP:6443 K3S_TOKEN=$K3S_TOKEN /usr/local/bin/k3s-install.sh
+EOF
+done
+
+echo "K3s cluster setup completed. Master node IP: $MASTER_IP"
diff --git a/terraform/main.tf b/terraform/main.tf
new file mode 100644
index 0000000..187bd47
--- /dev/null
+++ b/terraform/main.tf
@@ -0,0 +1,60 @@
+provider "libvirt" {
+  uri = "qemu:///system"
+}
+
+resource "libvirt_volume" "ubuntu_image" {
+  name   = "ubuntu-18.04-minimal-cloudimg-amd64"
+  pool   = "default"
+  source = "https://cloud-images.ubuntu.com/minimal/releases/bionic/release/ubuntu-18.04-minimal-cloudimg-amd64.img"
+  format = "qcow2"
+}
+
+resource "libvirt_network" "k8s_network" {
+  name      = "k8s_network"
+  mode      = "nat"
+  addresses = ["192.168.122.0/24"]
+}
+
+resource "libvirt_domain" "k8s_node" {
+  count  = 3
+  name   = "k8s-node-${count.index + 1}"
+  memory = "2048"
+  vcpu   = 2
+
+  cloudinit = libvirt_cloudinit_disk.common.id
+
+  network_interface {
+    network_name = libvirt_network.k8s_network.name
+    hostname     = "k8s-node-${count.index + 1}"
+  }
+
+  disk {
+    volume_id = libvirt_volume.ubuntu_image.id
+  }
+
+  console {
+    type        = "pty"
+    target_type = "serial"
+    target_port = "0"
+  }
+
+  graphics {
+    type        = "spice"
+    listen_type = "none"
+  }
+}
+
+resource "libvirt_cloudinit_disk" "common" {
+  name      = "common-init.iso"
+  user_data = data.template_file.user_data.rendered
+}
+
+data "template_file" "user_data" {
+  template = file("${path.module}/cloud_init.cfg")
+}
+
+output "k8s_node_ips" {
+  value = {
+    for i in libvirt_domain.k8s_node : i.name => i.network_interface[0].addresses[0]
+  }
+}
-- 
cgit 1.4.1-2-gfad0