From d3af6699802c818d5660aeaa4f662738af3ec7b3 Mon Sep 17 00:00:00 2001
From: jingyanwangms <47403504+jingyanwangms@users.noreply.github.com>
Date: Mon, 17 Aug 2020 17:05:01 -0700
Subject: [PATCH] Auto upgrade base image dependencies (#4797)

* use unattended-upgrade

* PR comment

* add comment

Co-authored-by: Jingyan Wang <jingywa@OrtTrainingDev3.af05slrtruoetgaxwwjv5nsq5e.px.internal.cloudapp.net>
---
 dockerfiles/Dockerfile.training | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/dockerfiles/Dockerfile.training b/dockerfiles/Dockerfile.training
index bdc7c17b38..e7ed0bcf22 100644
--- a/dockerfiles/Dockerfile.training
+++ b/dockerfiles/Dockerfile.training
@@ -24,7 +24,11 @@ RUN apt-get -y update &&\
     apt-get -y --no-install-recommends install \
         curl \
         git \
-        language-pack-en
+        language-pack-en \
+        unattended-upgrades
+
+# update existing packages to minimize security vulnerabilities
+RUN unattended-upgrade
 
 RUN locale-gen en_US.UTF-8 && \
     update-locale LANG=en_US.UTF-8