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/node/tasks/install.yml

@@ -1,51 +1,26 @@
 ---
 - name: install | Copy kubeadm binary from download dir
-  synchronize:
+  copy:
     src: "{{ local_release_dir }}/kubeadm-{{ kubeadm_version }}-{{ image_arch }}"
     dest: "{{ bin_dir }}/kubeadm"
-    compress: no
-    perms: yes
-    owner: no
-    group: no
-  delegate_to: "{{ inventory_hostname }}"
-  tags:
-    - kubeadm
-  when:
-    - not inventory_hostname in groups['kube-master']
-
-- name: install | Set kubeadm binary permissions
-  file:
-    path: "{{ bin_dir }}/kubeadm"
-    mode: "0755"
-    state: file
+    mode: 0755
+    remote_src: true
   tags:
     - kubeadm
   when:
     - not inventory_hostname in groups['kube-master']
 
 - name: install | Copy kubelet binary from download dir
-  synchronize:
+  copy:
     src: "{{ local_release_dir }}/kubelet-{{ kube_version }}-{{ image_arch }}"
     dest: "{{ bin_dir }}/kubelet"
-    compress: no
-    perms: yes
-    owner: no
-    group: no
-  delegate_to: "{{ inventory_hostname }}"
+    mode: 0755
+    remote_src: true
   tags:
     - kubelet
     - upgrade
   notify: Node | restart kubelet
 
-- name: install | Set kubelet binary permissions
-  file:
-    path: "{{ bin_dir }}/kubelet"
-    mode: "0755"
-    state: file
-  tags:
-    - kubelet
-    - upgrade
-
 - name: install | Copy socat wrapper for Container Linux
   command: "{{ docker_bin_dir }}/docker run --rm -v {{ bin_dir }}:/opt/bin {{ install_socat_image_repo }}:{{ install_socat_image_tag }}"
   args: