feat: increase master count to 3

ansible/roles/kubernetes_control_plane/tasks/main.yaml

@@ -1,4 +1,3 @@
----
 - name: Initialise Kubernetes cluster
   ansible.builtin.command:
     argv:
@@ -9,8 +8,35 @@
       - --upload-certs
   args:
     creates: /etc/kubernetes/admin.conf
+  run_once: true
 
 
+- name: Generate Join Command
+  ansible.builtin.command:
+    argv:
+      - kubeadm
+      - token
+      - create
+      - --print-join-command
+  register: kubernetes_control_plane_join_command
+  run_once: true
+  changed_when: true
+
+
+- name: Get Certificate Key
+  ansible.builtin.shell:
+    cmd: set -o pipefail && kubeadm init phase upload-certs --upload-certs | tail -n 1
+  register: kubernetes_control_plane_certificate_key
+  run_once: true
+  changed_when: true
+
+
+- name: Join Additional Control Planes
+  ansible.builtin.command:
+    cmd: "{{ kubernetes_control_plane_join_command.stdout }} --control-plane --certificate-key {{ kubernetes_control_plane_certificate_key.stdout }}"
+  args:
+    creates: /etc/kubernetes/admin.conf
+
 - name: Copy Kubernetes Admin Config
   ansible.builtin.command: "{{ item }}"
   loop:
@@ -20,6 +46,12 @@
   args:
     creates: $HOME/.kube/config
 
+- name: Install Kubernetes CLI
+  ansible.builtin.apt:
+    pkg:
+      - kubectl
+    state: present
+
 # - name: Install Pod Network (Calico)
 #   ansible.builtin.shell: kubectl apply -f https://raw.githubusercontent.com/projectcalico/calico/v3.32.0/manifests/calico.yaml > pod_network_setup.txt
 #   args:

ansible/site.yaml

@@ -4,14 +4,14 @@
     - common
     - kubernetes_common
 
-# # ========================
-# # SETUP KUBERNETES CLUSTER
-# # ========================
+# ========================
+# Setup Kubernetes Cluster
+# ========================
 
-# - name: Initialise Kubernetes cluster
-#   hosts: masters[0]
-#   roles:
-#     - kubernetes_master
+- name: Initialise Kubernetes Cluster
+  hosts: masters
+  roles:
+    - kubernetes_control_plane
 
 # # =======================
 # # JOIN MASTERS TO CLUSTER

infra/main.tofu

@@ -7,7 +7,7 @@ locals {
   ext_disk_size  = "16GiB"
   network_cidr   = "10.150.0.1/24"
 
-  master_count = 2
+  master_count = 3
   worker_count = 0
 
   image = "ubuntu/26.04"