---
# K3s — lightweight Kubernetes for single-node AI workloads
- name: Check if K3s is already installed
  stat:
    path: /usr/local/bin/k3s
  register: k3s_binary

- name: Install K3s
  shell: |
    curl -sfL https://get.k3s.io | \
      INSTALL_K3S_EXEC="--disable traefik --disable servicelb" sh -
  when: not k3s_binary.stat.exists
  retries: 3
  delay: 10

- name: Wait for K3s to be ready
  wait_for:
    path: /etc/rancher/k3s/k3s.yaml
    timeout: 120

- name: Enable and start K3s
  systemd:
    name: k3s
    enabled: yes
    state: started

- name: Create .kube directory for cezen
  file:
    path: /opt/cezen/.kube
    state: directory
    owner: cezen
    group: cezen

- name: Copy kubeconfig for cezen user
  copy:
    src: /etc/rancher/k3s/k3s.yaml
    dest: /opt/cezen/.kube/config
    owner: cezen
    group: cezen
    mode: "0600"
    remote_src: yes

- name: Set KUBECONFIG in cezen .bashrc
  lineinfile:
    path: /opt/cezen/.bashrc
    line: 'export KUBECONFIG=/opt/cezen/.kube/config'
    create: yes
    owner: cezen

- name: Install kubectl alias for cezen
  lineinfile:
    path: /opt/cezen/.bashrc
    line: "alias kubectl='k3s kubectl'"
    create: yes
    owner: cezen

- name: Verify K3s node is ready
  command: k3s kubectl get nodes
  register: k3s_nodes
  retries: 5
  delay: 10
  until: k3s_nodes.rc == 0