Move helm templates into folders (#7113)

* refactor: move helm templates into respective service folders

* fix: update template path reference in filer-statefulset for s3-secret

k8s/charts/seaweedfs/templates/volume/volume-servicemonitor.yaml

@@ -0,0 +1,40 @@
+{{ $volumes := deepCopy .Values.volumes | mergeOverwrite (dict "" .Values.volume)  }}
+{{- range $vname, $volume := $volumes }}
+{{- $volumeName := trimSuffix "-" (printf "volume-%s" $vname) }}
+{{- $volume := mergeOverwrite (deepCopy $.Values.volume) (dict "enabled" true) $volume }}
+
+{{- if $volume.enabled }}
+{{- if $volume.metricsPort }}
+{{- if $.Values.global.monitoring.enabled }}
+---
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: {{ template "seaweedfs.name" $ }}-{{ $volumeName }}
+  namespace: {{ $.Release.Namespace }}
+  labels:
+    app.kubernetes.io/name: {{ template "seaweedfs.name" $ }}
+    helm.sh/chart: {{ $.Chart.Name }}-{{ $.Chart.Version | replace "+" "_" }}
+    app.kubernetes.io/managed-by: {{ $.Release.Service }}
+    app.kubernetes.io/instance: {{ $.Release.Name }}
+    app.kubernetes.io/component: {{ $volumeName }}
+    {{- with $.Values.global.monitoring.additionalLabels }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
+{{- if .Values.volume.annotations }}
+  annotations:
+    {{- toYaml .Values.volume.annotations | nindent 4 }}
+{{- end }}
+spec:
+  endpoints:
+    - interval: 30s
+      port: metrics
+      scrapeTimeout: 5s
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: {{ template "seaweedfs.name" $ }}
+      app.kubernetes.io/component: {{ $volumeName }}
+{{- end }}
+{{- end }}
+{{- end }}
+{{- end }}