feat: add a option to mount local file as config files

templates/configfiles-configmap.yaml

+{{- if .Values.mountConfigMaps }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ .Release.Name}}-config-files
+data:
+  {{- range $c :=  .Values.mountConfigMaps }}
+  {{ $c.key }} : |-
+{{ $c.data | indent 4 }}
+  {{ end }}
+{{ end }}

templates/deployment.yaml

@@ -28,5 +28,5 @@
       imagePullSecrets:
         - name: {{ .Release.Name }}-regcred
       {{- end }}
-      {{- if .Values.volume }}
+      {{- if or .Values.volume .Values.mountConfigMaps}}
       volumes:
@@ -32,4 +32,5 @@
       volumes:
+        {{- if .Values.volume }}
         - name: {{ .Values.volume.name }}
           persistentVolumeClaim:
             claimName: {{ .Values.volume.name }}
@@ -33,6 +34,12 @@
         - name: {{ .Values.volume.name }}
           persistentVolumeClaim:
             claimName: {{ .Values.volume.name }}
+        {{- end }}
+        {{- if .Values.mountConfigMaps }}
+        - name: config-files
+          configMap:
+            name: {{ .Release.Name}}-config-files
+        {{- end }}
       {{- end}}
       containers:
         - image: {{ .Values.image.repo }}:{{ .Values.image.tag }}
@@ -58,5 +65,5 @@
             - secretRef:
                 name: {{ .Release.Name }}-env
           {{- end }}
-          {{- if .Values.volume }}
+          {{- if or .Values.volume .Values.mountConfigMaps}}
           volumeMounts:
@@ -62,3 +69,4 @@
           volumeMounts:
+            {{- if .Values.volume }}
             - name: {{ .Values.volume.name }}
               mountPath: {{ .Values.volume.mountPath }}
@@ -63,5 +71,11 @@
             - name: {{ .Values.volume.name }}
               mountPath: {{ .Values.volume.mountPath }}
+            {{- end }}
+            {{- range $c :=  .Values.mountConfigMaps }}
+            - name: config-files
+              mountPath: {{ $c.mountPath }}
+              subPath: {{ $c.key }}
+            {{ end }}
           {{- end }}
           resources:
             {{- toYaml .Values.resources | nindent 12 }}

values.yaml

@@ -90,3 +90,10 @@
   # registry: registry.exemple.org
   # username: user
   # password: password
+  #
+
+mountConfigMaps: []
+  # - key: "config.yaml"  # keys must be unique
+  #   mountPath: "/etc/project/config.yaml"
+  #   data: |-
+  #     some content