FROM ubuntu:focal AS build-env RUN apt-get update && DEBIAN_FRONTEND="noninteractive" \ apt-get --yes --no-install-recommends install \ gawk wget git diffstat unzip texinfo gcc build-essential \ chrpath socat cpio python3 python3-pip python3-pexpect \ xz-utils debianutils iputils-ping python3-git \ python3-jinja2 libegl1-mesa libsdl1.2-dev pylint3 \ xterm python3-subunit mesa-common-dev zstd liblz4-tool file