--- /dev/null
+FROM ubuntu:20.04
+
+# Disable interactive prompts on package installation
+ENV DEBIAN_FRONTEND noninteractive
+
+# Dependencies to get the git sources and go binaries
+RUN apt-get update && apt-get install -y --no-install-recommends \
+ ca-certificates \
+ curl \
+ git \
+ rsync \
+ && apt-get clean \
+ && rm -rf /var/lib/apt/lists/*
+
+# Get the git sources. If not cached, this takes O(5 minutes).
+WORKDIR /git
+RUN git config --global advice.detachedHead false
+# Linux Kernel: Released 13 Dec 2020
+RUN git clone --branch v5.10 --depth 1 https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux
+# GNU C library: Released 06 Aug 2020 (we should try to get a secure way to clone this)
+RUN git clone --branch release/2.32/master --depth 1 git://sourceware.org/git/glibc.git
+
+# Get Go
+ENV GOLANG_VERSION 1.16beta1
+ENV GOLANG_DOWNLOAD_URL https://golang.org/dl/go$GOLANG_VERSION.linux-amd64.tar.gz
+ENV GOLANG_DOWNLOAD_SHA256 3931a0d493d411d6c697df6f15d5292fdd8031fde7014fded399effdad4c12d8
+
+RUN curl -fsSL "$GOLANG_DOWNLOAD_URL" -o golang.tar.gz \
+ && echo "$GOLANG_DOWNLOAD_SHA256 golang.tar.gz" | sha256sum -c - \
+ && tar -C /usr/local -xzf golang.tar.gz \
+ && rm golang.tar.gz
+
+ENV PATH /usr/local/go/bin:$PATH
+
+# Linux and Glibc build dependencies and emulator
+RUN apt-get update && apt-get install -y --no-install-recommends \
+ bison gawk make python3 \
+ gcc gcc-multilib \
+ gettext texinfo \
+ qemu-user \
+ && apt-get clean \
+ && rm -rf /var/lib/apt/lists/*
+# Cross compilers (install recommended packages to get cross libc-dev)
+RUN apt-get update && apt-get install -y \
+ gcc-aarch64-linux-gnu gcc-arm-linux-gnueabi \
+ gcc-mips-linux-gnu gcc-mips64-linux-gnuabi64 \
+ gcc-mips64el-linux-gnuabi64 gcc-mipsel-linux-gnu \
+ gcc-powerpc64-linux-gnu gcc-powerpc64le-linux-gnu \
+ gcc-riscv64-linux-gnu \
+ gcc-s390x-linux-gnu gcc-sparc64-linux-gnu \
+ && apt-get clean \
+ && rm -rf /var/lib/apt/lists/*
+
+# Let the scripts know they are in the docker environment
+ENV GOLANG_SYS_BUILD docker
+WORKDIR /build
+ENTRYPOINT ["go", "run", "linux/mkall.go", "/git/linux", "/git/glibc"]