add prepare4shutdown command to preStop hook

templates/onlyoffice-deployment.yaml

@@ -23,6 +23,11 @@ spec:
     spec:
       containers:
         - name: {{ .Chart.Name }}
+          lifecycle:
+            preStop:
+              exec:
+                command:
+                  - "/usr/local/sbin/prepare4shutdown.sh"
           image: "{{ .Values.onlyoffice.image.repository }}:{{ .Values.onlyoffice.image.tag }}"
           imagePullPolicy: {{ .Values.onlyoffice.image.pullPolicy }}
           {{- if .Values.onlyoffice.livenessProbe.enabled }}