add: temporary volume option

Author: na-ga

manifests/piped/templates/_helpers.tpl

@@ -73,6 +73,17 @@ Name of Secret containing sensitive data
 {{- end }}
 {{- end }}
 
+{{/*
+Name of Temporary Volume containing piped configuration
+*/}}
+{{- define "piped.temporaryVolumeName" -}}
+{{- if .Values.temporaryVolume.create }}
+{{- include "piped.fullname" . }}
+{{- else }}
+{{- .Values.temporaryVolume.name }}
+{{- end }}
+{{- end }}
+
 {{/*
 Name of ServiceAccount
 */}}

manifests/piped/templates/deployment.yaml

@@ -40,6 +40,12 @@ spec:
           args:
             {{- include "piped.pipedArgs" . | nindent 12 }}
           {{- end }}
+          {{- if .Values.temporaryVolume.create }}
+          lifecycle:
+            postStart:
+              exec:
+                command: ["/bin/rm", "-rf", "/tmp/*"]
+          {{- end }}
           ports:
             - name: admin
               containerPort: 9085
@@ -62,6 +68,11 @@ spec:
             - name: piped-config
               mountPath: /etc/piped-config
               readOnly: true
+            {{- if .Values.temporaryVolume.create }}
+            - name: piped-temporary-volume
+              mountPath: "/tmp"
+              readOnly: false
+            {{- end }}
           resources:
             {{- toYaml .Values.resources | nindent 12 }}
           {{- with .Values.envs }}
@@ -76,6 +87,11 @@ spec:
         - name: piped-config
           configMap:
             name: {{ include "piped.configMapName" . }}
+        {{- if .Values.temporaryVolume.create }}
+        - name: piped-temporary-volume
+          persistentVolumeClaim:
+            claimName: {{ include "piped.temporaryVolumeName" . }}
+        {{- end }}
       {{- with .Values.securityContext }}
       securityContext:
         {{- toYaml . | nindent 8 }}

manifests/piped/templates/volume.yaml

@@ -0,0 +1,14 @@
+{{- if .Values.temporaryVolume.create -}}
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: {{ include "piped.temporaryVolumeName" . }}
+  labels:
+    {{- include "piped.labels" . | nindent 4 }}
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: {{ .Values.temporaryVolume.size }}
+{{- end}}

manifests/piped/values.yaml

@@ -81,6 +81,14 @@ secret:
   # Each item of this list has 2 fields "fileName" and "data".
   kubeConfigs: []
 
+temporaryVolume:
+  # Specifies whether a PersistentVolumeClaim for storing temporary data should be created.
+  create: false
+  # The name of the PersistentVolumeClaim to use when create is false.
+  name: ""
+  # The size of the persistent volume claim.
+  size: 100Gi
+
 envs: []
 
 securityContext: