From 320366ab60f27ef618698685ee137e13c4c2a5e3 Mon Sep 17 00:00:00 2001
From: xumia <59720581+xumia@users.noreply.github.com>
Date: Tue, 28 Mar 2023 14:04:33 +0800
Subject: [PATCH] [Build] Fix the installation candidate not found issue when
 building docker-sonic-vs (#14439)

Why I did it
Fix the installation candidate not found issue when building docker-sonic-vs

How I did it
Need to run the command "apt-get update" to update the mirror indexes before installing the package gnupg

How to verify it
---
 platform/vs/docker-sonic-vs/Dockerfile.j2 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/platform/vs/docker-sonic-vs/Dockerfile.j2 b/platform/vs/docker-sonic-vs/Dockerfile.j2
index 437261bbb1..4b356fa1a1 100644
--- a/platform/vs/docker-sonic-vs/Dockerfile.j2
+++ b/platform/vs/docker-sonic-vs/Dockerfile.j2
@@ -8,7 +8,7 @@ RUN [ -f /etc/rsyslog.conf ] && sed -ri "s/%syslogtag%/$docker_container_name#%s
 ## Make apt-get non-interactive
 ENV DEBIAN_FRONTEND=noninteractive
 
-RUN apt-get install -y gnupg
+RUN apt-get update && apt-get install -y gnupg
 COPY ["sonic-dev.gpg.key", "/etc/apt/"]
 RUN apt-key add /etc/apt/sonic-dev.gpg.key
 RUN echo "deb http://packages.microsoft.com/repos/sonic-dev/ jessie main" >> /etc/apt/sources.list