fix: fetch a file relative to the playbook

ansible/playbook.yaml

@@ -37,17 +37,17 @@
       dest: kubeadm-join-command
     when: kubeadm_init.rc == 0
   - name: fetch join command
-    fetch:
+    ansible.builtin.fetch:
       src: kubeadm-join-command
-      dest: kubeadm-join-command
-      flat: yes
+      dest: tmp/
+      flat: true
     when: kubeadm_init.rc == 0
 
 - name: Join k8s nodes
   hosts: workers
   tasks:
   - name: run kubeadm join
-    command: "{{ lookup('file', 'kubeadm-join-command') }}"
+    command: "{{ lookup('file', 'tmp/kubeadm-join-command') }}"
     register: kubeadm_join
     changed_when: kubeadm_join.rc == 0
     failed_when: kubeadm_join.rc not in [0, 2]