mirror of
https://github.com/johndoe6345789/SparkOS.git
synced 2026-04-24 13:34:56 +00:00
82 lines
2.5 KiB
Docker
82 lines
2.5 KiB
Docker
# Dockerfile for building SparkOS bootable image
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# This creates a .img file that can be written to USB drives
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FROM ubuntu:22.04 AS image-builder
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# Install required tools
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RUN apt-get update && \
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apt-get install -y \
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gcc \
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make \
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dosfstools \
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mtools \
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xorriso \
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isolinux \
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syslinux \
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syslinux-common \
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e2fsprogs \
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parted \
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kpartx \
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&& rm -rf /var/lib/apt/lists/*
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WORKDIR /build
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# Copy source files
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COPY src/ ./src/
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COPY Makefile .
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COPY scripts/ ./scripts/
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COPY config/ ./config/
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COPY rootfs/ ./rootfs/
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# Build the init binary
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RUN make init
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# Create the bootable image
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# We'll use a simpler approach that works in Docker
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RUN mkdir -p /output && \
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echo "Building minimal bootable image..." && \
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# Create a minimal image with just the init system for now
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# This is a placeholder - the actual bootloader requires a kernel
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dd if=/dev/zero of=/output/sparkos.img bs=1M count=512 && \
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mkfs.ext4 -L SparkOS /output/sparkos.img && \
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mkdir -p /mnt/img && \
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mount -o loop /output/sparkos.img /mnt/img && \
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mkdir -p /mnt/img/{bin,sbin,etc,proc,sys,dev,tmp,usr/{bin,sbin,lib},var/{log,run},root,home/spark,boot} && \
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cp init /mnt/img/sbin/init && \
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chmod 755 /mnt/img/sbin/init && \
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# Create basic config files
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echo "sparkos" > /mnt/img/etc/hostname && \
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echo "127.0.0.1 localhost" > /mnt/img/etc/hosts && \
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echo "127.0.1.1 sparkos" >> /mnt/img/etc/hosts && \
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echo "root:x:0:0:root:/root:/bin/sh" > /mnt/img/etc/passwd && \
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echo "spark:x:1000:1000:SparkOS User:/home/spark:/bin/sh" >> /mnt/img/etc/passwd && \
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echo "root:x:0:" > /mnt/img/etc/group && \
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echo "spark:x:1000:" >> /mnt/img/etc/group && \
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# Create README
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cat > /mnt/img/README.txt << 'EOF' && \
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SparkOS Minimal Image
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This is a minimal SparkOS filesystem image containing the init system.
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To make this fully bootable, you need to:
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1. Install a Linux kernel to /boot/vmlinuz
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2. Install busybox to /bin/busybox and create symlinks
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3. Install a bootloader (GRUB or syslinux)
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This image can be mounted and the init binary extracted:
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sudo mount -o loop sparkos.img /mnt
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cp /mnt/sbin/init ./
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sudo umount /mnt
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For more information, see: https://github.com/johndoe6345789/SparkOS
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EOF
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sync && \
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umount /mnt/img && \
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# Compress the image
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gzip -9 /output/sparkos.img && \
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echo "Image created: /output/sparkos.img.gz"
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# Final stage - just export the image
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FROM scratch AS export
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COPY --from=image-builder /output/sparkos.img.gz /sparkos.img.gz
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