From c7ce62154b934320881dbcee01b821979755dc97 Mon Sep 17 00:00:00 2001
From: Devesh Pathak <54966909+devpatha@users.noreply.github.com>
Date: Wed, 9 Nov 2022 16:54:56 -0800
Subject: [PATCH] Clear /etc/resolv.conf before building image (#12592)

Why I did it
nameserver and domain entries from build system fsroot gets into sonic image.

How I did it
Clear /etc/resolv.conf before building image

How to verify it
Built image with it and verified with install that /etc/resolv.conf is empty
---
 build_debian.sh                              | 1 +
 files/image_config/resolv-config/resolv.conf | 0
 2 files changed, 1 insertion(+)
 create mode 100644 files/image_config/resolv-config/resolv.conf

diff --git a/build_debian.sh b/build_debian.sh
index 3f39ec17e4..f137feb6a7 100755
--- a/build_debian.sh
+++ b/build_debian.sh
@@ -628,6 +628,7 @@ sudo rm -f $ONIE_INSTALLER_PAYLOAD $FILESYSTEM_SQUASHFS
 ## Note: -x to skip directories on different file systems, such as /proc
 sudo du -hsx $FILESYSTEM_ROOT
 sudo mkdir -p $FILESYSTEM_ROOT/var/lib/docker
+sudo cp files/image_config/resolv-config/resolv.conf $FILESYSTEM_ROOT/etc/resolv.conf
 sudo mksquashfs $FILESYSTEM_ROOT $FILESYSTEM_SQUASHFS -e boot -e var/lib/docker -e $PLATFORM_DIR
 
 # Ensure admin gid is 1000
diff --git a/files/image_config/resolv-config/resolv.conf b/files/image_config/resolv-config/resolv.conf
new file mode 100644
index 0000000000..e69de29bb2