[bitnami/redis] Fix sentinel pre stop (#7835)

* Fix redis sentinel pre stop

bitnami/redis/templates/scripts-configmap.yaml

@@ -390,9 +390,19 @@ data:
     . /opt/bitnami/scripts/libvalidations.sh
     . /opt/bitnami/scripts/libos.sh
 
+    HEADLESS_SERVICE="{{ template "common.names.fullname" . }}-headless.{{ .Release.Namespace }}.svc.{{ .Values.clusterDomain }}"
     SENTINEL_SERVICE_ENV_NAME={{ printf "%s%s"  (upper (include "common.names.fullname" .)| replace "-" "_") "_SERVICE_PORT_TCP_SENTINEL" }}
     SENTINEL_SERVICE_PORT=${!SENTINEL_SERVICE_ENV_NAME}
 
+    get_full_hostname() {
+        hostname="$1"
+
+        {{- if eq .Values.sentinel.service.type "NodePort" }}
+        echo "${hostname}.{{- .Release.Namespace }}"
+        {{- else }}
+        echo "${hostname}.${HEADLESS_SERVICE}"
+        {{- end}}
+    }
     run_sentinel_command() {
         if is_boolean_yes "$REDIS_SENTINEL_TLS_ENABLED"; then
             redis-cli -h "$REDIS_SERVICE" -p "$SENTINEL_SERVICE_PORT" --tls --cert "$REDIS_SENTINEL_TLS_CERT_FILE" --key "$REDIS_SENTINEL_TLS_KEY_FILE" --cacert "$REDIS_SENTINEL_TLS_CA_FILE" sentinel "$@"
@@ -403,7 +413,7 @@ data:
     failover_finished() {
       REDIS_SENTINEL_INFO=($(run_sentinel_command get-master-addr-by-name "{{ .Values.sentinel.masterSet }}"))
       REDIS_MASTER_HOST="${REDIS_SENTINEL_INFO[0]}"
-      [[ "$REDIS_MASTER_HOST" != "${myip}" ]]
+      [[ "$REDIS_MASTER_HOST" != "$(get_full_hostname $HOSTNAME)" ]]
     }
 
     REDIS_SERVICE="{{ include "common.names.fullname" . }}.{{ .Release.Namespace }}.svc.{{ .Values.clusterDomain }}"