Upload the ansible playbook for the elk k8s stack

ansible/playbooks/teardown.yml

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+---
+# =============================================================================
+# Teardown Playbook — Remove the entire ELK stack deployment
+# =============================================================================
+# Usage:
+#   ansible-playbook -i inventory/hosts.yml playbooks/teardown.yml
+# =============================================================================
+
+- name: Teardown ELK Stack
+  hosts: localhost
+  connection: local
+  gather_facts: false
+
+  tasks:
+    - name: Delete elk namespace (removes all ELK resources)
+      ansible.builtin.command: kubectl delete namespace elk --ignore-not-found --timeout=120s
+      changed_when: false
+
+    - name: Delete database namespace (removes MySQL)
+      ansible.builtin.command: kubectl delete namespace database --ignore-not-found --timeout=120s
+      changed_when: false
+
+    - name: Remove /etc/hosts entries
+      become: true
+      ansible.builtin.lineinfile:
+        path: /etc/hosts
+        regexp: '.*kibana\.elk\.local.*'
+        state: absent
+
+    - name: Optionally stop Minikube
+      ansible.builtin.command: minikube stop
+      ignore_errors: true
+      changed_when: false
+      when: stop_minikube | default(false) | bool
+
+    - name: Print teardown complete
+      ansible.builtin.debug:
+        msg: "ELK stack teardown complete. Run with -e stop_minikube=true to also stop Minikube."