Add Alpine and systemd cloud-init templates

cloud-init/user-data-systemd.yml.tftpl

@@ -0,0 +1,32 @@
+#cloud-config
+
+# 1. Hostname configuration
+hostname: ${hostname}
+fqdn: ${hostname}
+preserve_hostname: false
+
+# 2. User creation
+users:
+  - name: ${username}
+    sudo: ALL=(ALL) NOPASSWD:ALL
+    groups: sudo, admin
+    shell: /bin/bash
+    ssh_authorized_keys:
+      - ${ssh_key}
+
+# 3. System update
+package_update: true
+package_upgrade: true
+
+# 4. Package installation
+packages:
+  - qemu-guest-agent
+  - curl
+
+# 5. Tailscale installation and configuration
+runcmd:
+  # Enable and start qemu-guest-agent (systemd)
+  - [ systemctl, enable, qemu-guest-agent, --now ]
+  # Install and configure Tailscale
+  - [ sh, -c, "curl -fsSL https://tailscale.com/install.sh | sh" ]
+  - [ tailscale, up, --authkey=${tailscale_auth_key}, --hostname=${vm_name} ]