variant: flatcar
version: 1.0.0
storage:
  files:
    - path: /etc/hostname
      mode: 0644
      contents:
        inline: k3s-node
      replace: true
    - path: /opt/setup-k3s.sh
      mode: 0755
      contents:
        inline: |
          #!/bin/bash
          # Install K3s with minimal components
          curl -sfL https://get.k3s.io | INSTALL_K3S_EXEC="server \
            --disable=traefik \
            --disable=servicelb \
            --tls-san=$(hostname -I | cut -d' ' -f1) \
            --write-kubeconfig-mode=644" sh -

          # Create symlinks for easier access
          mkdir -p /root/.kube
          ln -sf /etc/rancher/k3s/k3s.yaml /root/.kube/config

          # Wait for node to be ready
          while ! kubectl get nodes; do sleep 5; done

systemd:
  units:
    - name: k3s-setup.service
      enabled: true
      contents: |
        [Unit]
        Description=K3s Setup
        After=network-online.target
        Wants=network-online.target

        [Service]
        Type=oneshot
        ExecStart=/opt/setup-k3s.sh
        RemainAfterExit=yes

        [Install]
        WantedBy=multi-user.target