+ARG HOSTTYPE
+ARG BRANCH
+ARG GOVERSION
+
+FROM ubuntu:focal as build_x86_64
+# Install go
+ONBUILD ARG GOVERSION
+ONBUILD ADD generated/go${GOVERSION}.linux-amd64.tar.gz /usr/local/
+ONBUILD RUN ln -s /usr/local/go/bin/go /usr/local/bin/
+# Install nodejs and npm
+ONBUILD ADD generated/node-v10.23.1-linux-x64.tar.xz /usr/local/
+ONBUILD RUN ln -s /usr/local/node-v10.23.1-linux-x64/bin/* /usr/local/bin/
+# On x86, we want some cross-compilation support for arm64
+# Add gcc-aarch64-linux-gnu to compile go binaries for arm64
+ONBUILD RUN /usr/bin/apt-get update && /usr/bin/apt-get install -q -y gcc-aarch64-linux-gnu
+# We also need libpam compiled for arm64, and that requires some sources.list mangling
+ONBUILD RUN /bin/sed -i 's/deb http/deb [ arch=amd64 ] http/' /etc/apt/sources.list
+ONBUILD ADD ports.list /etc/apt/sources.list.d/
+ONBUILD RUN /usr/bin/dpkg --add-architecture arm64
+ONBUILD RUN /usr/bin/apt-get update && /usr/bin/apt-get install -o APT::Immediate-Configure=0 -q -y libpam0g-dev:arm64
+# Note that cross compilation support for ubuntu2004 is disabled in
+# run-library.sh because of
+# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=983477. Hopefully
+# ubuntu2204 will have the fix introduced in debian11.
+
+FROM ubuntu:focal as build_aarch64
+# Install go
+ONBUILD ARG GOVERSION
+ONBUILD ADD generated/go${GOVERSION}.linux-arm64.tar.gz /usr/local/
+ONBUILD RUN ln -s /usr/local/go/bin/go /usr/local/bin/
+# Install nodejs and npm
+ONBUILD ADD generated/node-v10.23.1-linux-arm64.tar.xz /usr/local/
+ONBUILD RUN ln -s /usr/local/node-v10.23.1-linux-arm64/bin/* /usr/local/bin/
+
+FROM build_${HOSTTYPE}
+