Add additionalTopLevelConfig to helm chart

script/helm/garage/templates/configmap.yaml

@@ -30,6 +30,10 @@ data:
 
     bootstrap_peers = {{ .Values.garage.bootstrapPeers }}
 
+    {{- if .Values.garage.additionalTopLevelConfig }}
+    {{ .Values.garage.additionalTopLevelConfig | nindent 4 }}
+    {{- end }}
+  
     [kubernetes_discovery]
     namespace = "{{ .Release.Namespace }}"
     service_name = "{{ include "garage.fullname" . }}"

script/helm/garage/values.yaml

@@ -50,6 +50,12 @@ garage:
       rootDomain: ".web.garage.tld"
       index: "index.html"
 
+  # -- Additional configuration to append to garage.toml. Use a multi-line string for custom config.
+  # Example:
+  #  additionalTopLevelConfig: |-
+  #    data_fsync = true
+  additionalTopLevelConfig: ""
+
   # -- if not empty string, allow using an existing ConfigMap for the garage.toml,
   # if set, ignores garage.toml
   existingConfigMap: ""