- name: Initialise Kubernetes cluster
  ansible.builtin.command:
    argv:
      - kubeadm
      - init
      - --pod-network-cidr=172.16.0.0/16
      - --control-plane-endpoint={{ ansible_facts['default_ipv4']['address'] }}:6443
      - --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:
    - mkdir -p $HOME/.kube
    - cp /etc/kubernetes/admin.conf $HOME/.kube/config
    - chown $(id -u):$(id -g) $HOME/.kube/config
  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:
#     chdir: $HOME
#     creates: pod_network_setup.txt