Revert "Update rke to 1.0.0"

This reverts commit bb71f433.

ansible/group_vars/all/oas.yml

@@ -63,10 +63,10 @@ rke:
   # `ansible/group_vars/all/settings.yml.example`
   #
   # https://github.com/rancher/rke/releases
-  version: '1.0.0'
+  version: '0.3.2'
   # Also possible:
-  # checksum: 'sha256:https://github.com/rancher/rke/releases/download/v1.0.0/sha256sum.txt'
-  checksum: 'sha256:c77731f9000e7e18feb90a872e458c7b444a975662ef42aa6fbda0d8926118bc'
+  # checksum: 'sha256:https://github.com/rancher/rke/releases/download/v0.2.4/sha256sum.txt'
+  checksum: 'sha256:96b366fe1faaa668b3e47f5b6d4bfd6334224e33c21e55dc79ec96f85e0e48e8'
 
 cert_manager:
   # cert-manager requires custom resource definitions applied before installing