+#!/bin/bash
+##############################################################################
+# Copyright (c) 2017 Huawei Technologies Co.,Ltd and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+
+# fit for arm64
+DOCKER_ARCH="$(uname -m)"
+
+UBUNTU_PORTS_URL="http://ports.ubuntu.com/ubuntu-ports/"
+UBUNTU_ARCHIVE_URL="http://archive.ubuntu.com/ubuntu/"
+
+source /etc/os-release
+source_file=/etc/apt/sources.list
+
+if [[ "${DOCKER_ARCH}" == "aarch64" ]]; then
+ sed -i -e 's/^deb \([^/[]\)/deb [arch=arm64] \1/g' "${source_file}"
+ DOCKER_ARCH="arm64"
+ DOCKER_REPO="${UBUNTU_PORTS_URL}"
+ EXTRA_ARCH="amd64"
+ EXTRA_REPO="${UBUNTU_ARCHIVE_URL}"
+ dpkg --add-architecture amd64
+else
+ sed -i -e 's/^deb \([^/[]\)/deb [arch=amd64] \1/g' "${source_file}"
+ DOCKER_ARCH="amd64"
+ DOCKER_REPO="${UBUNTU_ARCHIVE_URL}"
+ EXTRA_ARCH="arm64"
+ EXTRA_REPO="${UBUNTU_PORTS_URL}"
+ dpkg --add-architecture arm64
+fi
+
+sed -i -e 's/^deb-src /# deb-src /g' "${source_file}"
+
+VERSION_CODENAME=${VERSION_CODENAME:-trusty}
+
+echo "APT::Default-Release \""${VERSION_CODENAME}"\";" > /etc/apt/apt.conf.d/default-distro
+
+sub_source_file=/etc/apt/sources.list.d/yardstick.list
+touch "${sub_source_file}"
+
+# first add xenial repo needed for installing qemu_static_user/xenial in the container
+# then add complementary architecture repositories in case the cloud image is of different arch
+if [[ "${VERSION_CODENAME}" != "xenial" ]]; then
+ REPO_UPDATE="deb [arch="${DOCKER_ARCH}"] "${DOCKER_REPO}" xenial-updates universe"
+fi
+
+echo -e ""${REPO_UPDATE}"
+deb [arch="${EXTRA_ARCH}"] "${EXTRA_REPO}" "${VERSION_CODENAME}" main universe multiverse restricted
+deb [arch="${EXTRA_ARCH}"] "${EXTRA_REPO}" "${VERSION_CODENAME}"-updates main universe multiverse restricted
+deb [arch="${EXTRA_ARCH}"] "${EXTRA_REPO}" "${VERSION_CODENAME}"-security main universe multiverse restricted
+deb [arch="${EXTRA_ARCH}"] "${EXTRA_REPO}" "${VERSION_CODENAME}"-proposed main universe multiverse restricted" > "${sub_source_file}"
+
+echo "vm.mmap_min_addr = 0" > /etc/sysctl.d/mmap_min_addr.conf
+