1 files changed, 84 insertions, 0 deletions
diff --git a/kubernetes/common/common/templates/_storage.tpl b/kubernetes/common/common/templates/_storage.tpl
new file mode 100644
index 0000000000..ae9335909d
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+++ b/kubernetes/common/common/templates/_storage.tpl
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+{{/*
+# Copyright © 2019 Amdocs, Bell Canada, Orange
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+*/}}
+
+{{/*
+  Expand the name of the storage class.
+  The value "common.fullname"-data is used by default,
+  unless either override mechanism is used.
+
+  - .Values.global.persistence.storageClass  : override default storageClass for all charts
+  - .Values.persistence.storageClassOverride : override global and default storage class on a per chart basis
+  - .Values.persistence.storageClass         : override default storage class on a per chart basis
+*/}}
+{{- define "common.storageClass" -}}
+  {{- if .Values.persistence.storageClassOverride -}}
+    {{- if ne "-" .Values.persistence.storageClassOverride -}}
+      {{- printf "%s" .Values.persistence.storageClassOverride -}}
+    {{- else -}}
+      {{- $storage_class := "" -}}
+      {{- printf "%q" $storage_class -}}
+    {{- end -}}
+  {{- else -}}
+    {{- if or .Values.persistence.storageClass .Values.global.persistence.storageClass }}
+      {{- if ne "-" (default .Values.persistence.storageClass .Values.global.persistence.storageClass) -}}
+        {{- printf "%s" (default .Values.persistence.storageClass .Values.global.persistence.storageClass) -}}
+      {{- else -}}
+        {{- $storage_class := "" -}}
+        {{- printf "%q" $storage_class -}}
+      {{- end -}}
+    {{- else -}}
+      {{- printf "%s-data" (include "common.fullname" .) -}}
+    {{- end -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+  Calculate if we need a PV. If a storageClass is provided, then we don't need.
+*/}}
+{{- define "common.needPV" -}}
+{{- if not (or (or .Values.persistence.storageClassOverride .Values.persistence.storageClass) .Values.global.persistence.storageClass) -}}
+  True
+{{- end -}}
+{{- end -}}
+
+{{/*
+  Generate N PV for a statefulset
+*/}}
+{{- define "common.replicaPV" -}}
+{{- $global := . }}
+{{- if and $global.Values.persistence.enabled (not $global.Values.persistence.existingClaim) }}
+{{- if (include "common.needPV" .) -}}
+{{- range $i := until (int $global.Values.replicaCount)}}
+---
+kind: PersistentVolume
+apiVersion: v1
+metadata:
+  name: {{ include "common.fullname" $global }}-data-{{$i}}
+  namespace: {{ include "common.namespace" $global }}
+  labels: {{- include "common.labels" $global | nindent 4 }}
+spec:
+  capacity:
+    storage: {{ $global.Values.persistence.size}}
+  accessModes:
+    - {{ $global.Values.persistence.accessMode }}
+  persistentVolumeReclaimPolicy: {{ $global.Values.persistence.volumeReclaimPolicy }}
+  storageClassName: "{{ include "common.fullname" $global }}-data"
+  hostPath:
+    path: {{ $global.Values.global.persistence.mountPath | default $global.Values.persistence.mountPath }}/{{ include "common.release" $global }}/{{ $global.Values.persistence.mountSubPath }}-{{$i}}
+{{- end -}}
+{{- end -}}
+{{- end -}}
+{{- end -}}