Add pre-upgrade task for moving credentials file

.gitignore

@@ -1,6 +1,7 @@
 .vagrant
 *.retry
 inventory/vagrant_ansible_inventory
+inventory/credentials/
 inventory/group_vars/fake_hosts.yml
 inventory/host_vars/
 temp

roles/kubernetes/preinstall/tasks/main.yml

@@ -3,6 +3,7 @@
   tags:
     - asserts
 
+
 - name: Force binaries directory for Container Linux by CoreOS
   set_fact:
     bin_dir: "/opt/bin"
@@ -39,6 +40,11 @@
   tags:
     - facts
 
+- import_tasks: pre_upgrade.yml
+  tags:
+    - upgrade
+
+
 - name: Create kubernetes directories
   file:
     path: "{{ item }}"

roles/kubernetes/preinstall/tasks/pre_upgrade.yml

@@ -0,0 +1,21 @@
+---
+- name: "Pre-upgrade | check if old credential dir exists"
+  stat:
+    path: "{{ inventory_dir }}/../credentials"
+  register: old_credential_dir
+  delegate_to: localhost
+
+- name: "Pre-upgrade | check if new credential dir exists"
+  stat: 
+    path: "{{ inventory_dir }}/credentials"
+  register: new_credential_dir
+  delegate_to: localhost
+  when: old_credential_dir.stat.exists
+
+- name: "Pre-upgrade | move data from old credential dir to new"
+  command: mv {{ inventory_dir }}/../credentials {{ inventory_dir }}/credentials
+  args:
+    creates: "{{ inventory_dir }}/credentials"
+  when: old_credential_dir.stat.exists and not new_credential_dir.stat.exists
+  delegate_to: localhost
+