From d7e8809cf8ba1f6bcbb45f3c39349365f0dbfa7b Mon Sep 17 00:00:00 2001
From: dougbtv <dosmith@redhat.com>
Date: Tue, 22 Jan 2019 10:38:02 -0500
Subject: [PATCH] [entrypoint] Updates entrypoint for atomic move of binary
 (for cleaner upgrade)

---
 images/entrypoint.sh | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/images/entrypoint.sh b/images/entrypoint.sh
index f5d875aaa..fb23940e6 100755
--- a/images/entrypoint.sh
+++ b/images/entrypoint.sh
@@ -84,8 +84,9 @@ do
   fi
 done
 
-# Copy files into proper places.
-cp -f $MULTUS_BIN_FILE $CNI_BIN_DIR
+# Copy files into place and atomically move into final binary name
+cp -f $MULTUS_BIN_FILE $CNI_BIN_DIR/_multus
+mv -f $CNI_BIN_DIR/_multus $CNI_BIN_DIR/multus 
 if [ "$MULTUS_CONF_FILE" != "auto" ]; then
   cp -f $MULTUS_CONF_FILE $CNI_CONF_DIR
 fi