♻️ Rethink @mmumshad's Vagrant configuration

Vagrantfile

@@ -3,56 +3,160 @@
 
 # Define how much memory your computer has in GB (e.g. 8, 16)
 # Larger nodes will be created if you have more.
-RAM_SIZE = 16
+RAM_SIZE = 8
 
 # Define how mnay CPU cores you have.
 # More powerful workers will be created if you have more
-CPU_CORES = 8
+CPU_CORES = 4
 
 # Internal network prefix for the VM network
 # See the documentation before changing this
 IP_NW = "192.168.56."
 
-Vagrant.configure("2") do |config|
-    config.vm.box = "debian/bookworm64"
-    config.vm.boot_timeout = 900
-    config.vm.box_check_update = true
+# Calculate resource amounts
+# based on RAM/CPU
+ram_selector = (RAM_SIZE / 4) * 4
+if ram_selector < 8
+  raise "Unsufficient memory #{RAM_SIZE}GB. min 8GB"
+end
+RESOURCES = {
+  "control" => {
+    1 => {
+      # controlplane01 bigger since it may run e2e tests.
+      "ram" => [ram_selector * 128, 2048].max(),
+      "cpu" => CPU_CORES >= 12 ? 4 : 2,
+    },
+    2 => {
+      # All additional masters get this
+      "ram" => [ram_selector * 128, 2048].min(),
+      "cpu" => CPU_CORES > 8 ? 2 : 1,
+    },
+  },
+  "worker" => {
+    "ram" => [ram_selector * 128, 4096].min(),
+    "cpu" => CPU_CORES > 8 ? 2 : 1,
+  },
+}
+
+# Sets up hosts file and DNS
+def setup_dns(node)
+  # Set up /etc/hosts
+  node.vm.provision "setup-hosts", :type => "shell", :path => "vm/utils/setup-hosts.sh" do |s|
+    s.args = ["enp0s8", node.vm.hostname]
+  end
+  # Set up DNS resolution
+  # node.vm.provision "setup-dns", type: "shell", :path => "vm/utils/update-dns.sh"
+end
+
+# Runs provisioning steps that are required by masters and workers
+def provision_kubernetes_node(node)
+  # Set up kernel parameters, modules and tunables
+  node.vm.provision "setup-kernel", :type => "shell", :path => "vm/utils/setup-kernel.sh"
+  # Set up ssh
+  node.vm.provision "setup-ssh", :type => "shell", :path => "vm/utils/ssh.sh"
+  # Set up DNS
+  setup_dns node
+  # Set up with Ansible
+  node.vm.provision "ansible" do |ansible|
+    ansible.compatibility_mode = "2.0"
+    ansible.verbose = "v"
+    ansible.playbook = "ansible/provision.yml"
+  end
+end
+
+# Define the number of master and worker nodes. You should not change this
+NUM_CONTROL_NODES = 2
+NUM_WORKER_NODE = 2
 
-    # Network
-    config.vm.hostname =  PRJ_HOSTNAME
-    # FIXME: Change bridge adapter name and IP address according to your environment
-    # For exanple, I use eno1 and IP address 10.0.0.128/28
-    config.vm.network "public_network",
-      bridge: "eno1", ip: "10.0.0.131", hostname: true
+# Host address start points
+MASTER_IP_START = 10
+NODE_IP_START = 20
+LB_IP_START = 30
 
-    config.vm.network "forwarded_port", guest: 80, host: 8080,
-      auto_correct: true
-    config.vm.network "forwarded_port", guest: 443, host: 8443,
-      auto_correct: true
+# All Vagrant configuration is done below. The "2" in Vagrant.configure
+# configures the configuration version (we support older styles for
+# backwards compatibility). Please don't change it unless you know what
+# you're doing.
+Vagrant.configure("2") do |config|
+  # The most common configuration options are documented and commented below.
+  # For a complete reference, please see the online documentation at
+  # https://docs.vagrantup.com.
 
-    config.vm.synced_folder "../drupal8-website", PRJ_DIR
+  # Every Vagrant development environment requires a box. You can search for
+  # boxes at https://vagrantcloud.com/search.
+  # config.vm.box = "base"
+  config.vm.box = "debian/bookworm64"
+  config.vm.boot_timeout = 900
 
-    # Config for hypervisor
-    # config.vm.provider "hyperv" do |hv|
-    # and change all vb. to hv.
-    config.vm.provider "virtualbox" do |vb|
-      vb.name = PRJ_NAME
+  # Disable automatic box update checking. If you disable this, then
+  # boxes will only be checked for updates when the user runs
+  # `vagrant box outdated`. This is not recommended.
+  config.vm.box_check_update = false
 
-      vb.memory = "2048"
-      vb.cpus = "2"
+  # Provision Control Nodes
+  (1..NUM_CONTROL_NODES).each do |i|
+    config.vm.define "controlplane0#{i}" do |node|
+      # Name shown in the GUI
+      node.vm.provider "virtualbox" do |vb|
+        vb.name = "kubernetes-ha-controlplane-#{i}"
+        vb.memory = RESOURCES["control"][i > 2 ? 2 : i]["ram"]
+        vb.cpus = RESOURCES["control"][i > 2 ? 2 : i]["cpu"]
+        # Disable gui & audio for headless operation in VirtualBox
+        vb.gui = false
+        vb.customize ["modifyvm", :id, "--audio", "none"]
+      end
+      node.vm.hostname = "controlplane0#{i}"
+      node.vm.network :private_network, ip: IP_NW + "#{MASTER_IP_START + i}"
+      node.vm.network "forwarded_port", guest: 22, host: "#{2710 + i}"
+      provision_kubernetes_node node
+      if i == 1
+        # Add cetificate verification scripts
+        node.vm.provision "file", source: "vm/utils/cert_verify.sh", destination: "$HOME/cert_verify.sh"
+        node.vm.provision "file", source: "vm/utils/approve-csr.sh", destination: "$HOME/approve-csr.sh"
+      end
+    end
+  end
 
+  # Provision Load Balancer Node
+  config.vm.define "loadbalancer" do |node|
+    node.vm.provider "virtualbox" do |vb|
+      vb.name = "kubernetes-ha-lb"
+      vb.memory = 512
+      vb.cpus = 1
+      # Disable gui & audio for headless operation in VirtualBox
       vb.gui = false
       vb.customize ["modifyvm", :id, "--audio", "none"]
     end
+    node.vm.hostname = "loadbalancer"
+    node.vm.network :private_network, ip: IP_NW + "#{LB_IP_START}"
+    node.vm.network "forwarded_port", guest: 22, host: 2730
+    # Set up ssh
+    node.vm.provision "setup-ssh", :type => "shell", :path => "vm/utils/ssh.sh"
+    setup_dns node
+  end
 
-    config.vm.provision "file",
-      source: "~/.ssh/id_ed25519.pub", destination: "~/.ssh/me.pub"
-
-    config.vm.provision "shell", inline: <<-SHELL
-      sudo apt-get update
-      sudo apt-get install -y openssh-server
-      cat /home/vagrant/.ssh/me.pub >> /home/vagrant/.ssh/authorized_keys
-      cat /home/vagrant/.ssh/me.pub >> /root/.ssh/authorized_keys
-    SHELL
+  # Provision Worker Nodes
+  (1..NUM_WORKER_NODE).each do |i|
+    config.vm.define "node0#{i}" do |node|
+      node.vm.provider "virtualbox" do |vb|
+        vb.name = "kubernetes-ha-node-#{i}"
+        vb.memory = RESOURCES["worker"]["ram"]
+        vb.cpus = RESOURCES["worker"]["cpu"]
+        vb.gui = false
+        vb.customize ["modifyvm", :id, "--audio", "none"]
+      end
+      node.vm.hostname = "node0#{i}"
+      node.vm.network :private_network, ip: IP_NW + "#{NODE_IP_START + i}"
+      node.vm.network "forwarded_port", guest: 22, host: "#{2720 + i}"
+      provision_kubernetes_node node
+    end
+  end
 
+  # Modify all nodes to not use GUI and audio
+  config.vm.define "all" do |node|
+    node.vm.provider "virtualbox" do |vb|
+      vb.gui = false
+      vb.customize ["modifyvm", :id, "--audio", "none"]
+    end
   end
+end

ansible.cfg

@@ -19,7 +19,7 @@ remote_tmp                    = "/tmp/ansible-${USER}"
 # Tweaks for readability and debug
 callbacks_enabled             = profile_tasks
 stdout_callback               = community.general.yaml
-# cow_selection                 = bunny
+cow_selection                 = bunny
 nocows                        = True
 force_color                   = True
 
@@ -30,7 +30,7 @@ force_color                   = True
 # no_log                        = True
 
 [inventory]
-enable_plugins                = auto, yaml, kubernetes.core.k8s
+enable_plugins                = auto, yaml, kubernetes.core.k8s, ini
 
 [ssh_connection]
 # SSH CONFIG