Revert "Drop linux capabilities and rework users/groups"

roles/kubernetes/node/tasks/install.yml

@@ -26,6 +26,6 @@
   notify: restart kubelet
 
 - name: install | Install kubelet launch script
-  template: src=kubelet-container.j2 dest="{{ bin_dir }}/kubelet" owner={{ kubelet_user }} mode=0755 backup=yes
+  template: src=kubelet-container.j2 dest="{{ bin_dir }}/kubelet" owner=kube mode=0755 backup=yes
   notify: restart kubelet
   when: kubelet_deployment_type == "docker"

roles/kubernetes/node/tasks/main.yml

@@ -4,9 +4,6 @@
       {%- if inventory_hostname in groups['kube-master'] and inventory_hostname not in groups['kube-node'] -%}true{%- else -%}false{%- endif -%}
   tags: facts
 
-- include: pre-upgrade.yml
-  tags: k8s-pre-upgrade
-
 - include: install.yml
   tags: kubelet
 

roles/kubernetes/node/tasks/pre-upgrade.yml

@@ -1,4 +0,0 @@
----
-- name: "Pre-upgrade | share access to kube certs for its users"
-  shell: chmod g+r {{ kube_cert_dir }}/*.pem
-  failed_when: false