[docker-base-stretch]: Do not check expire for stretch-backports repo (…

…#3958)

* [docker-base-stretch]: Do not check expire for stretch-backports repo

Signed-off-by: Guohan Lu <gulv@microsoft.com>

build_debian.sh

@@ -107,7 +107,7 @@ sudo LANG=C chroot $FILESYSTEM_ROOT mount proc /proc -t proc
 
 ## Pointing apt to public apt mirrors and getting latest packages, needed for latest security updates
 sudo cp files/apt/sources.list.$CONFIGURED_ARCH $FILESYSTEM_ROOT/etc/apt/sources.list
-sudo cp files/apt/apt.conf.d/{81norecommends,apt-{clean,gzip-indexes,no-languages}} $FILESYSTEM_ROOT/etc/apt/apt.conf.d/
+sudo cp files/apt/apt.conf.d/{81norecommends,apt-{clean,gzip-indexes,no-languages},no-check-valid-until} $FILESYSTEM_ROOT/etc/apt/apt.conf.d/
 sudo LANG=C chroot $FILESYSTEM_ROOT bash -c 'apt-mark auto `apt-mark showmanual`'
 
 ## Note: set lang to prevent locale warnings in your chroot

dockers/docker-base-stretch/Dockerfile.j2

@@ -34,6 +34,7 @@ COPY ["sources.list.arm64", "/etc/apt/sources.list"]
 COPY ["sources.list", "/etc/apt/sources.list"]
 {% endif %}
 COPY ["no_install_recommend_suggest", "/etc/apt/apt.conf.d"]
+COPY ["aptconf_archive_expired_release", "/etc/apt/apt.conf.d"]
 
 # Update apt cache and
 # pre-install fundamental packages

dockers/docker-base-stretch/aptconf_archive_expired_release

@@ -0,0 +1,3 @@
+# Instruct apt-get to override expired releases repo list for jessie archives
+
+Acquire::Check-Valid-Until "0";

files/apt/apt.conf.d/no-check-valid-until

@@ -0,0 +1 @@
+Acquire::Check-Valid-Until "false";