- name: Instalar K3s en el Cluster
  hosts: k3s_cluster
  become: true

  tasks:
    - name: Actualizar paquetes
      ansible.builtin.apt:
        update_cache: true
        upgrade: true

    - name: Instalar dependencias
      ansible.builtin.apt:
        name:
          - curl
          - vim
          - unzip
          - nfs-common

    - name: Descargar instalador de K3s si no existe
      ansible.builtin.get_url:
        url: https://get.k3s.io
        dest: /tmp/k3s-install.sh
        mode: '0755'
      register: k3s_install_script

    - name: Instalar K3s en master
      ansible.builtin.command: /tmp/k3s-install.sh server --disable=servicelb
      args:
        creates: /usr/local/bin/k3s
      when: inventory_hostname in groups['k3s_master']

    - name: Obtener el token de K3s
      ansible.builtin.command: cat /var/lib/rancher/k3s/server/node-token
      register: k3s_token
      changed_when: false
      delegate_to: "{{ groups['k3s_master'][0] }}"

    - name: Instalar K3s en nodos worker
      ansible.builtin.command: /tmp/k3s-install.sh
      args:
        creates: /usr/local/bin/k3s
      environment:
        K3S_URL: "https://{{ hostvars[groups['k3s_master'][0]]['inventory_hostname'] }}:6443"
        K3S_TOKEN: "{{ k3s_token.stdout }}"
      when: inventory_hostname in groups['k3s_workers']

    - name: Copiar kubeconfig al host local
      ansible.builtin.fetch:
        src: /etc/rancher/k3s/k3s.yaml
        dest: ../kubeconfig.yaml
        flat: true
      delegate_to: "{{ groups['k3s_master'][0] }}"

    - name: Ajustar kubeconfig para acceso externo
      ansible.builtin.replace:
        path: ../kubeconfig.yaml
        regexp: '127.0.0.1'
        replace: "{{ hostvars[groups['k3s_master'][0]]['inventory_hostname'] }}"
      delegate_to: localhost