Assert that current version is upgradeable #1474 (#1476)

* Assert that upgrade from current version is supported #1474

* Update core/src/epicli/data/common/ansible/playbooks/roles/upgrade/tasks/kubernetes.yml

Co-authored-by: to-bar <46519524+to-bar@users.noreply.github.com>

core/src/epicli/data/common/ansible/playbooks/roles/upgrade/tasks/kubernetes.yml

@@ -7,6 +7,12 @@
  import_tasks: kubernetes/get-cluster-version.yml # sets cluster_version
  delegate_to: "{{ groups['kubernetes_master'][0] }}"
 
+- name: Check if upgrade from current K8s version is supported
+ assert:
+ that: cluster_version is version('v1.14.6', '>=')
+ fail_msg: Your Kubernetes version ({{ cluster_version }}) is not supported by this version of Epiphany which requires at least version 1.14.6 (Epiphany v0.4.4). For more information, refer to the documentation.
+ quiet: true
+
 - name: Include get-kubelet-version.yml
  import_tasks: kubernetes/get-kubelet-version.yml # sets kubelet_version
  delegate_to: "{{ groups['kubernetes_master'][0] }}"