longhorn: upgrade from 1.9.0 to 1.12.0 (with intermediate releases)

Change-Id: Ice8f4e8f7e073023ab274c83154d9368525f9231
diff --git a/scripts/longhorn.yaml b/scripts/longhorn.yaml
new file mode 100644
index 0000000..d77cf6e
--- /dev/null
+++ b/scripts/longhorn.yaml
@@ -0,0 +1,13 @@
+defaultSettings:
+  defaultDataPath: /pcloud-storage/longhorn
+persistence:
+  defaultClassReplicaCount: 2
+service:
+  ui:
+    type: LoadBalancer
+ingress:
+  enabled: false
+image:
+  longhorn:
+    backingImageManager:
+      tag: v1.12.0