diff --git a/charts/generic-service/README.md b/charts/generic-service/README.md
index a7a305e..d51408b 100644
--- a/charts/generic-service/README.md
+++ b/charts/generic-service/README.md
@@ -98,6 +98,7 @@ app:
 | `additionalMounts.PATH.name`                    | __required if used__        | The name of an additional volume to be mounted at `PATH` inside the container                            |
 | `additionalMounts.PATH.*`                       | __required if used__        | The configuration for the additional volume (e.g., `emptyDir: {}`)                                       |
 | `ingress.enabled`                               | `false`                     | Enables ingress into the service (either cluster-internal or public)                                     |
+| `ingress.shutdownDelaySeconds`                  | `5`                         | The number of seconds to delay shutting down the container once no new requests are being routed to it   |
 | `ingress.port`                                  | `80`                        | The container port ingress traffic is routed to                                                          |
 | `ingress.protocol`                              | `http`                      | The internal protocol used for ingress (e.g., `http`, `https`, `h2c`, `grpc`, `http2`/`h2` or `grpcs`)   |
 | `ingress.timeoutSeconds`                        |                             | Number of seconds after which to timeout waiting for response from service; -1 for infinite              |
diff --git a/charts/generic-service/templates/controller.yaml b/charts/generic-service/templates/controller.yaml
index 15dd991..0e57cb7 100644
--- a/charts/generic-service/templates/controller.yaml
+++ b/charts/generic-service/templates/controller.yaml
@@ -194,7 +194,7 @@ spec:
       serviceAccountName: '{{ .Values.rbac.existingServiceAccount | default (include "generic-service.fullname" .) }}'
       {{- end }}
 
-      terminationGracePeriodSeconds: {{ .Values.maxShutdownSeconds | int }}
+      terminationGracePeriodSeconds: {{ if and .Values.ingress.enabled .Values.ingress.shutdownDelaySeconds }}{{ add (.Values.maxShutdownSeconds | int) (.Values.ingress.shutdownDelaySeconds | int) }}{{ else }}{{ .Values.maxShutdownSeconds | int }}{{ end }}
 
       {{- if .Values.scheduling.priority }}
       priorityClassName: {{ .Values.scheduling.priority }}
@@ -434,12 +434,12 @@ spec:
               {{ if $val }}value: {{ $val | quote }}{{ end }}
             {{- end }}
 
-          {{- if and .Values.ingress.enabled .Values.maxShutdownSeconds | int }}
+          {{- if and .Values.ingress.enabled .Values.ingress.shutdownDelaySeconds }}
           # Delay shutdown to give ingress controller time to reroute traffic
           lifecycle:
             preStop:
               exec:
-                command: ["sleep", "5"]
+                command: ["sleep", "{{ .Values.ingress.shutdownDelaySeconds }}"]
           {{- end }}
 
       {{- range .Values.sidecars }}
diff --git a/charts/generic-service/values.schema.json b/charts/generic-service/values.schema.json
index eeb3f80..6ca6e12 100644
--- a/charts/generic-service/values.schema.json
+++ b/charts/generic-service/values.schema.json
@@ -680,6 +680,11 @@
           "default": false,
           "description": "Enables ingress into the service (either cluster-internal or public)"
         },
+        "shutdownDelaySeconds": {
+          "type": "integer",
+          "default": 5,
+          "description": "The number of seconds to delay shutting down the container once no new requests are being routed to it"
+        },
         "port": {
           "type": "integer",
           "default": 80,
diff --git a/charts/generic-service/values.yaml b/charts/generic-service/values.yaml
index 09d1026..b442e5e 100644
--- a/charts/generic-service/values.yaml
+++ b/charts/generic-service/values.yaml
@@ -105,6 +105,7 @@ additionalMounts: {}
 
 ingress:
   enabled: false
+  shutdownDelaySeconds: 5
   port: 80
   protocol: http
   timeoutSeconds: null