fix: speed up nuke playbook by preventing k3s from starting on next reboot

ansible/playbooks/cluster-nuke.yml

@@ -23,11 +23,19 @@
         seconds: 5
   tasks:
     - name: Uninstall Cilium
+      when:
+        - k3s_control_node is defined
+        - k3s_control_node
       ansible.builtin.shell: |
         cilium uninstall --wait
       environment:
         KUBECONFIG: /etc/rancher/k3s/k3s.yaml
 
+    - name: Prevent k3s from starting on reboot
+      ansible.builtin.systemd:
+        name: k3s
+        enabled: false
+
     - name: Reboot
       ansible.builtin.reboot:
         msg: Rebooting nodes