From 3e946b2b19e2a1a1ed9f629de980c145de3ce00a Mon Sep 17 00:00:00 2001
From: Simone Lazzaris <slazzaris@gmail.com>
Date: Thu, 24 Oct 2024 14:37:16 +0200
Subject: [PATCH] change db into a StatefulSet

Changed the DB component into a stateful set. This avoid having two instances of
the DB running *on the same data*, which can happen with a deployment (i.e., during
an update/reconfiguration).
Also, added a shutdown command to properly shut down the database, to prevent
data corruption.
---
 .../templates/db/{deployment.yaml => statefulset.yaml}    | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
 rename charts/supabase/templates/db/{deployment.yaml => statefulset.yaml} (97%)

diff --git a/charts/supabase/templates/db/deployment.yaml b/charts/supabase/templates/db/statefulset.yaml
similarity index 97%
rename from charts/supabase/templates/db/deployment.yaml
rename to charts/supabase/templates/db/statefulset.yaml
index 314842e..7506bc0 100644
--- a/charts/supabase/templates/db/deployment.yaml
+++ b/charts/supabase/templates/db/statefulset.yaml
@@ -1,6 +1,6 @@
 {{- if .Values.db.enabled -}}
 apiVersion: apps/v1
-kind: Deployment
+kind: StatefulSet
 metadata:
   name: {{ include "supabase.db.fullname" . }}
   labels:
@@ -58,6 +58,10 @@ spec:
             {{- toYaml .Values.db.securityContext | nindent 12 }}
           image: "{{ .Values.db.image.repository }}:{{ .Values.db.image.tag | default .Chart.AppVersion }}"
           imagePullPolicy: {{ .Values.db.image.pullPolicy }}
+          lifecycle:
+            preStop:
+              exec:
+                command: ["/bin/sh", "-c", "pg_ctl -D /var/lib/postgres/data -w -t 60 -m fast stop"]
           env:
             {{- range $key, $value := .Values.db.environment }}
             - name: {{ $key }}
@@ -170,4 +174,4 @@ spec:
       tolerations:
         {{- toYaml . | nindent 8 }}
       {{- end }}
-{{- end }}
\ No newline at end of file
+{{- end }}