+# fit for arm64
+DOCKER_ARCH="$(uname -m)"
+
+UBUNTU_PORTS_URL="http://ports.ubuntu.com/ubuntu-ports/"
+UBUNTU_ARCHIVE_URL="http://archive.ubuntu.com/ubuntu/"
+
+source_file=/etc/apt/sources.list
+
+if [[ "${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}"
+echo "APT::Default-Release \"trusty\";" > /etc/apt/apt.conf.d/default-distro
+
+sub_source_file=/etc/apt/sources.list.d/yardstick.list
+touch "${sub_source_file}"
+
+# first add xenial repo needed for installing qemu_static_user/xenial in the container
+# then add complementary architecture repositories in case the cloud image is of different arch
+echo -e "deb [arch="${DOCKER_ARCH}"] "${DOCKER_REPO}" xenial-updates universe
+deb [arch="${EXTRA_ARCH}"] "${EXTRA_REPO}" trusty main universe multiverse restricted
+deb [arch="${EXTRA_ARCH}"] "${EXTRA_REPO}" trusty-updates main universe multiverse restricted
+deb [arch="${EXTRA_ARCH}"] "${EXTRA_REPO}" trusty-security main universe multiverse restricted
+deb [arch="${EXTRA_ARCH}"] "${EXTRA_REPO}" trusty-proposed main universe multiverse restricted" > "${sub_source_file}"
+
+echo "vm.mmap_min_addr = 0" > /etc/sysctl.d/mmap_min_addr.conf
+