######################################
# Tasks for init k8s cluster         #
######################################
---
- name: Get hostname
  command: hostname
  register: old_hostname
  changed_when: false

- set_fact: hostname={{ old_hostname.stdout | lower }}

- name: Pull k8s images
  command: kubeadm config images pull --kubernetes-version=v{{ kubernetesVersion }}

- name: copy clusterConfig to remote location
  template:
    src: '../templates/k8s_cluster/cluster/clusterConfiguration.yml.j2'
    dest: /tmp/clusterConfiguration.yml

- name: Initialize the Kubernetes cluster using kubeadm
  command:
    argv:
      - kubeadm
      - init
      - --config=/tmp/clusterConfiguration.yml
      - --node-name={{ hostname }}
      - --ignore-preflight-errors
      - Swap
      - --upload-certs

- name: Remove clusterConfig on remote location
  ansible.builtin.file:
    path: /tmp/clusterConfiguration.yml
    state: absent

- name: Setup kubeconfig for local usage
  command: "{{ item }}"
  loop:
   - mkdir -p ~/.kube
   - cp -i /etc/kubernetes/admin.conf ~/.kube/config

- name: Wait for all k8s nodes to be ready
  shell: kubectl wait --for=condition=Ready nodes --all --timeout=600s
  register: nodes_ready

- name: create Calico NetworkManager directory
  file:
    path: '/etc/NetworkManager/conf.d/'
    state: directory
    mode: 0755

- name: Configure Calico NetworkManager
  template:
    src: ../templates/k8s_cluster/cluster/calico.conf.j2
    dest: /etc/NetworkManager/conf.d/calico.conf
    owner: root
    mode: '0644'

- name: Install calico pod network
  kubernetes.core.k8s:
    state: present
    definition: "{{ lookup('template', '../templates/k8s_cluster/cluster/calico.yml.j2') | from_yaml_all }}"

- name: Wait for calico daemonset become ready
  command: "kubectl rollout status daemonset calico-node -n kube-system --timeout 60s"

- name: Generate join command
  command: kubeadm token create --print-join-command
  register: join_command