forked from public/airgap
70 lines
2.1 KiB
Docker
70 lines
2.1 KiB
Docker
FROM stagex/busybox AS busybox
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FROM stagex/musl AS musl
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FROM stagex/xorriso AS xorriso
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FROM stagex/syslinux AS syslinux
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FROM stagex/cpio AS cpio
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FROM stagex/linux-airgap AS linux
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FROM stagex/mtools AS mtools
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FROM stagex/dosfstools AS dosfstools
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FROM scratch AS base
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COPY --from=busybox . /
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COPY --from=musl . /
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COPY --from=xorriso . /
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COPY --from=cpio . /
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COPY --from=mtools . /
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COPY --from=linux . /
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COPY --from=dosfstools . /
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COPY --from=syslinux . /
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FROM base AS build
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COPY --from=linux /bzImage /iso/boot/bzImage
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COPY --from=stagex/busybox . initramfs
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COPY --chmod=0755 <<-EOF initramfs/init
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#!/bin/sh
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/bin/sh
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EOF
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RUN cd initramfs && find . | cpio -o -H newc | gzip -9 > /iso/boot/init.gz
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COPY <<-EOF iso/isolinux/isolinux.cfg
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DEFAULT linux
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LABEL linux
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KERNEL boot/bzImage
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APPEND initrd=boot/init.gz
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EOF
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COPY --from=syslinux /usr/share/syslinux/isolinux.bin iso/isolinux/
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COPY --from=syslinux /usr/share/syslinux/ldlinux.c32 iso/isolinux/
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RUN <<-EOF
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set -eux
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mkdir -p iso/efi
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truncate -s $((10796+128+128))k iso/efi/esp.img
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mkfs.fat -F 16 -f 1 -M 0xF0 -r 112 -R 1 iso/efi/esp.img
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mmd -i iso/efi/esp.img ::boot
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mcopy -i iso/efi/esp.img iso/boot/bzImage ::boot/bzImage
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mcopy -i iso/efi/esp.img iso/boot/init.gz ::boot/init.gz
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mmd -i iso/efi/esp.img ::syslinux
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mcopy -i iso/efi/esp.img iso/isolinux/isolinux.cfg ::syslinux/syslinux.cfg
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mcopy -i iso/efi/esp.img /usr/share/syslinux/efi64/ldlinux.e64 ::syslinux/ldlinux.e64
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mmd -i iso/efi/esp.img ::efi
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mmd -i iso/efi/esp.img ::efi/boot
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mcopy -i iso/efi/esp.img /usr/share/syslinux/efi64/syslinux.efi ::efi/boot/boot64.efi
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ls -Rlah iso
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EOF
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FROM build AS install
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RUN xorriso \
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-as mkisofs \
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-output airgap.iso \
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-eltorito-boot isolinux/isolinux.bin \
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-no-emul-boot \
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-boot-load-size 4 \
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-boot-info-table \
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-eltorito-alt-boot \
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-eltorito-platform efi \
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-eltorito-boot efi/esp.img \
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-no-emul-boot \
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-eltorito-catalog isolinux/boot.cat \
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iso
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#RUN isohybrid airgap.iso
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FROM scratch AS package
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COPY --from=install /airgap.iso /
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