fix ansible password authentication (#6907)

* copying ssh key no longer required, works with password auth
* use copy module instead of synchronize (which requires sshpass)
* less tasks and always changed tasks

roles/kubernetes/master/tasks/main.yml

@@ -20,24 +20,11 @@
     - kube_encrypt_secret_data
 
 - name: Install | Copy kubectl binary from download dir
-  synchronize:
+  copy:
     src: "{{ local_release_dir }}/kubectl-{{ kube_version }}-{{ image_arch }}"
     dest: "{{ bin_dir }}/kubectl"
-    compress: no
-    perms: yes
-    owner: no
-    group: no
-  changed_when: false
-  delegate_to: "{{ inventory_hostname }}"
-  tags:
-    - kubectl
-    - upgrade
-
-- name: install | Set kubectl binary permissions
-  file:
-    path: "{{ bin_dir }}/kubectl"
-    mode: "0755"
-    state: file
+    mode: 0755
+    remote_src: true
   tags:
     - kubectl
     - upgrade