From dd8b4e5cc744229bec455c59f340004bc24be1cf Mon Sep 17 00:00:00 2001
From: Henrik Schmidt <mrIncompetent@users.noreply.github.com>
Date: Thu, 21 Dec 2023 11:32:16 +0000
Subject: [PATCH] Fix: Add preStop hook to allow graceful network shutdown
 (#121)

Adding a preStop sleep to allow other controllers to remove the pod from the network path.
Without, there's a risk of breaking in-flight requests when the container is already stopped but the endpoints/endpointsSlice objects haven't been updated.

Source:  https://learnk8s.io/graceful-shutdown
---
 charts/qdrant/templates/statefulset.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/charts/qdrant/templates/statefulset.yaml b/charts/qdrant/templates/statefulset.yaml
index 4438b7b..71d3e7b 100644
--- a/charts/qdrant/templates/statefulset.yaml
+++ b/charts/qdrant/templates/statefulset.yaml
@@ -157,6 +157,10 @@ spec:
           securityContext:
             {{- toYaml . | nindent 12 }}
           {{- end }}
+          lifecycle:
+            preStop:
+              exec:
+                command: ["sleep", "3"]
           volumeMounts:
           - name: qdrant-storage
             mountPath: /qdrant/storage