first cut of an upgrade process

roles/upgrade/pre-upgrade/tasks/main.yml

@@ -0,0 +1,12 @@
+---
+
+- name: Cordon node
+  command: kubectl cordon {{ ansible_hostname }}
+  delegate_to: "{{ groups['kube-master'][0] }}"
+
+- name: Drain node
+  command: kubectl drain --force --ignore-daemonsets --delete-local-data {{ ansible_hostname }}
+  delegate_to: "{{ groups['kube-master'][0] }}"
+
+- name: Sleep for grace period for draining
+  pause: seconds=30