Initial commit.

Vagrantfile

@@ -0,0 +1,88 @@
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+# --- USER CUSTOMIZATION ---
+# Change the values below to your desired settings.
+
+# 1. The username for the new user account with sudo permissions.
+USERNAME = "pkhamre"
+
+# 2. The absolute path to your SSH public key.
+PUBLIC_KEY_PATH = File.expand_path("~/.ssh/id_ed25519.pub")
+
+# --- VM & CLUSTER CONFIGURATION ---
+
+# Base box for all VMs
+VAGRANT_BOX = "cloud-image/ubuntu-24.04"
+VAGRANT_BOX_VERSION = "20250704.0.0"
+
+# Predefined static IP addresses and configurations for each node
+NODES = [
+  { hostname: "k8s-cp-1",     ip: "192.168.122.101", memory: 2048, cpus: 2 },
+  { hostname: "k8s-cp-2",     ip: "192.168.122.102", memory: 2048, cpus: 2 },
+  { hostname: "k8s-cp-3",     ip: "192.168.122.103", memory: 2048, cpus: 2 },
+  { hostname: "k8s-worker-1", ip: "192.168.122.111", memory: 2048, cpus: 4 },
+  { hostname: "k8s-worker-2", ip: "192.168.122.112", memory: 2048, cpus: 4 }
+]
+
+Vagrant.configure("2") do |config|
+  config.vm.box = VAGRANT_BOX
+  config.vm.box_version = VAGRANT_BOX_VERSION
+
+  # Verify that the specified SSH public key file exists before proceeding.
+  if !File.exist?(PUBLIC_KEY_PATH)
+    raise "SSH public key not found at path: #{PUBLIC_KEY_PATH}. Please update the PUBLIC_KEY_PATH variable in the Vagrantfile."
+  end
+  publicKey = File.read(PUBLIC_KEY_PATH).strip
+
+  # --- DEFINE VMS FROM THE NODES LIST ---
+  NODES.each do |node_config|
+    config.vm.define node_config[:hostname] do |node|
+      node.vm.hostname = node_config[:hostname]
+
+      # ** CORRECTED NETWORK CONFIGURATION **
+      # Use 'private_network' to assign a static IP and 'libvirt__network_name'
+      # to connect to an existing libvirt virtual network.
+      node.vm.network "private_network",
+        ip: node_config[:ip],
+        libvirt__network_name: "default"
+
+      node.vm.provider "libvirt" do |libvirt|
+        libvirt.memory = node_config[:memory]
+        libvirt.cpus = node_config[:cpus]
+      end
+    end
+  end
+
+  # --- COMMON PROVISIONING SCRIPT ---
+  # This script runs on all nodes to create a user and set up SSH access.
+  config.vm.provision "shell", inline: <<-SHELL
+    echo ">>> Starting user and SSH configuration..."
+
+    # Create the user with a home directory and add to the sudo group
+    if ! id -u #{USERNAME} >/dev/null 2>&1; then
+      echo ">>> Creating user '#{USERNAME}'"
+      useradd #{USERNAME} --create-home --shell /bin/bash --groups sudo
+    else
+      echo ">>> User '#{USERNAME}' already exists"
+    fi
+
+    # Grant passwordless sudo to the new user
+    echo ">>> Configuring passwordless sudo for '#{USERNAME}'"
+    echo '#{USERNAME} ALL=(ALL) NOPASSWD:ALL' > /etc/sudoers.d/#{USERNAME}
+    chmod 0440 /etc/sudoers.d/#{USERNAME}
+
+    # Set up SSH key-based authentication
+    echo ">>> Adding SSH public key for '#{USERNAME}'"
+    HOME_DIR=$(eval echo ~#{USERNAME})
+    mkdir -p $HOME_DIR/.ssh
+    echo '#{publicKey}' > $HOME_DIR/.ssh/authorized_keys
+
+    # Set correct permissions for the .ssh directory and authorized_keys file
+    chown -R #{USERNAME}:#{USERNAME} $HOME_DIR/.ssh
+    chmod 700 $HOME_DIR/.ssh
+    chmod 600 $HOME_DIR/.ssh/authorized_keys
+
+    echo ">>> User configuration complete!"
+  SHELL
+end