Dockerfile

# Build stage for qemu-system-arm
FROM ubuntu AS qemu-system-arm-builder
ARG QEMU_VERSION=4.2.0
ENV QEMU_TARBALL="qemu-${QEMU_VERSION}.tar.xz"
WORKDIR /qemu

RUN apt-get update && \
    apt-get -y install \
                       wget \
		       gpg \
		       pkg-config \
		       python \
		       build-essential \
                       libglib2.0-dev \
		       libpixman-1-dev \
                       libfdt-dev \
		       zlib1g-dev \
                       flex \
                       bison

RUN # Download source...
RUN wget "https://download.qemu.org/${QEMU_TARBALL}"

RUN # Verify signatures...
RUN wget "https://download.qemu.org/${QEMU_TARBALL}.sig"
RUN gpg --keyserver keyserver.ubuntu.com --recv-keys CEACC9E15534EBABB82D3FA03353C9CEF108B584
RUN gpg --verify "${QEMU_TARBALL}.sig" "${QEMU_TARBALL}"

RUN # Extract tarball...
RUN tar xvf "${QEMU_TARBALL}"

RUN # Build source...
RUN "qemu-${QEMU_VERSION}/configure" --static --target-list=arm-softmmu
RUN make -j$(nproc)

RUN # Strip the binary, this gives a substantial size reduction!
RUN strip "arm-softmmu/qemu-system-arm"

# Build pidoc VM image
FROM ubuntu as pidoc-vm
LABEL maintainer="Mark Havens <mark.r.havens@gmail.com>"
ARG RPI_KERNEL_URL="https://github.com/dhruvvyas90/qemu-rpi-kernel/archive/afe411f2c9b04730bcc6b2168cdc9adca224227c.zip"
ARG RPI_KERNEL_CHECKSUM="295a22f1cd49ab51b9e7192103ee7c917624b063cc5ca2e11434164638aad5f4"

COPY --from=qemu-system-arm-builder /qemu/arm-softmmu/qemu-system-arm /usr/local/bin/qemu-system-arm

ADD $RPI_KERNEL_URL /tmp/qemu-rpi-kernel.zip

RUN apt-get update && \
    apt-get -y install \
			unzip \ 
			expect
RUN cd /tmp && \
    echo "$RPI_KERNEL_CHECKSUM  qemu-rpi-kernel.zip" | sha256sum -c && \
    unzip qemu-rpi-kernel.zip && \
    mkdir -p /root/qemu-rpi-kernel && \
    cp qemu-rpi-kernel-*/kernel-qemu-4.19.50-buster /root/qemu-rpi-kernel/ && \
    cp qemu-rpi-kernel-*/versatile-pb.dtb /root/qemu-rpi-kernel/ && \
    rm -rf /tmp/*

VOLUME /sdcard

ADD ./entrypoint.sh /entrypoint.sh
ENTRYPOINT ["./entrypoint.sh"]

# Build the pidoc image
FROM pidoc-vm as pidoc
LABEL maintainer="Mark Havens <mark.r.havens@gmail.com>"
ARG FILESYSTEM_IMAGE_URL="http://downloads.raspberrypi.org/raspbian_lite/images/raspbian_lite-2019-09-30/2019-09-26-raspbian-buster-lite.zip"
ARG FILESYSTEM_IMAGE_CHECKSUM="a50237c2f718bd8d806b96df5b9d2174ce8b789eda1f03434ed2213bbca6c6ff"

ADD $FILESYSTEM_IMAGE_URL /filesystem.zip
ADD pi_ssh_enable.exp /pi_ssh_enable.exp

RUN echo "$FILESYSTEM_IMAGE_CHECKSUM  /filesystem.zip" | sha256sum -c