MAINT: create separate storageclass for opensearch

this storage class can be configured separately from other apps which also use longhorn on dev-worker

Author: anish-mudaraddi

charts/dev/opensearch/templates/longhorn-storageclass.yaml

@@ -0,0 +1,11 @@
+kind: StorageClass
+apiVersion: storage.k8s.io/v1
+metadata:
+  name: longhorn-opensearch
+provisioner: driver.longhorn.io
+allowVolumeExpansion: true
+reclaimPolicy: Delete
+volumeBindingMode: Immediate
+parameters:
+  numberOfReplicas: "1"
+  migratable: true

charts/dev/opensearch/templates/opensearch-cluster.yaml

@@ -59,7 +59,7 @@ spec:
         pvc:
           accessModes:
             - {{ .accessModes | default "ReadWriteOnce" }}
-          storageClass: {{ .storageClass | default "longhorn" }}
+          storageClass: {{ .storageClass | default "longhorn-opensearch" }}
       nodeSelector: 
         {{- toYaml .nodeSelector | nindent 10 }}
       roles:

charts/dev/opensearch/values.yaml

@@ -51,7 +51,7 @@ nodePools:
       pvc:
         accessModes:
           - ReadWriteOnce
-        storageClass: longhorn
+        storageClass: longhorn-opensearch
     nodeSelector: {}
     roles:
       - "cluster_manager"