From 06b52a9ef7d7fa34b6cf7251890e27eb58cf4990 Mon Sep 17 00:00:00 2001
From: Vaibhav Hemant Dixit <vaibhav.dixit@microsoft.com>
Date: Wed, 6 Oct 2021 21:42:55 +0000
Subject: [PATCH] Save DB dump after warm/fast reboot

---
 files/build_templates/docker_image_ctl.j2 | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/files/build_templates/docker_image_ctl.j2 b/files/build_templates/docker_image_ctl.j2
index 1bf0552a29dd..a4a0d250610c 100644
--- a/files/build_templates/docker_image_ctl.j2
+++ b/files/build_templates/docker_image_ctl.j2
@@ -50,7 +50,8 @@ function postStartAction()
         sleep 1;
     done
     if [[ ("$BOOT_TYPE" == "warm" || "$BOOT_TYPE" == "fastfast") && -f $WARM_DIR/dump.rdb ]]; then
-        rm -f $WARM_DIR/dump.rdb
+        # retain the dump file from last boot for debugging purposes
+        mv $WARM_DIR/dump.rdb $WARM_DIR/dump.rdb.old
     else
         # If there is a config db dump file, load it
         if [ -r /etc/sonic/config_db.json ]; then