[bitnami/redis] Handle SIGTERM in kubectl-shared container

bitnami/redis/CHANGELOG.md

@@ -1,8 +1,12 @@
 # Changelog
 
-## 20.11.1 (2025-03-04)
+## 20.11.2 (2025-03-04)
 
-* [bitnami/redis] Disable all usages of usePasswordFiles if auth.enabled is unset ([#32253](https://github.com/bitnami/charts/pull/32253))
+* [bitnami/redis] - handle SIGTERM in `kubectl-shared` container ([#32085](https://github.com/bitnami/charts/pull/32085))
+
+## <small>20.11.1 (2025-03-04)</small>
+
+* [bitnami/redis] Disable all usages of usePasswordFiles if auth.enabled is unset (#32253) ([1642f81](https://github.com/bitnami/charts/commit/1642f819c11793ff688f96b831a80bef863d7f98)), closes [#32253](https://github.com/bitnami/charts/issues/32253)
 
 ## 20.11.0 (2025-03-03)
 

bitnami/redis/Chart.yaml

@@ -36,4 +36,4 @@ maintainers:
 name: redis
 sources:
 - https://github.com/bitnami/charts/tree/main/bitnami/redis
-version: 20.11.1
+version: 20.11.2

bitnami/redis/templates/scripts-configmap.yaml

@@ -847,15 +847,23 @@ data:
   update-master-label.sh: |
     #!/bin/bash
     while true; do
-        while [ ! -f "/etc/shared/current" ]; do
+        while [ ! -f "/etc/shared/current" ] && [ ! -f "/etc/shared/terminate" ]; do
             sleep 1
         done
-        echo "new master elected, updating label(s)..."
-        kubectl label pod --field-selector metadata.name="$(< "/etc/shared/current")" isMaster="true" --overwrite
-        kubectl label pod --field-selector metadata.name="$(< "/etc/shared/current")" app.kubernetes.io/role-
-        if [ -f /etc/shared/previous ]; then
-            kubectl label pod --field-selector metadata.name="$(< "/etc/shared/previous")" isMaster="false" --overwrite
+
+        if [ -f "/etc/shared/current" ]; then
+            echo "new master elected, updating label(s)..."
+            kubectl label pod --field-selector metadata.name="$(< "/etc/shared/current")" isMaster="true" --overwrite
+            kubectl label pod --field-selector metadata.name="$(< "/etc/shared/current")" app.kubernetes.io/role-
+            if [ -f /etc/shared/previous ]; then
+                kubectl label pod --field-selector metadata.name="$(< "/etc/shared/previous")" isMaster="false" --overwrite
+            fi
+            rm "/etc/shared/current" "/etc/shared/previous"
+        fi
+
+        if [ -f "/etc/shared/terminate" ]; then
+            echo "received signal to terminate"
+            exit
         fi
-        rm "/etc/shared/current" "/etc/shared/previous"
     done
 {{- end }}

bitnami/redis/templates/sentinel/statefulset.yaml

@@ -640,6 +640,12 @@ spec:
           image: {{ template "redis.kubectl.image" . }}
           imagePullPolicy: {{ .Values.kubectl.image.pullPolicy | quote }}
           command: {{- toYaml .Values.kubectl.command | nindent 12 }}
+          lifecycle:
+            preStop:
+              exec:
+                command:
+                  - touch
+                  - /etc/shared/terminate
           {{- if .Values.kubectl.containerSecurityContext.enabled }}
           securityContext: {{- include "common.compatibility.renderSecurityContext" (dict "secContext" .Values.kubectl.containerSecurityContext "context" $) | nindent 12 }}
           {{- end }}