79 lines
2 KiB
Docker
79 lines
2 KiB
Docker
FROM scratch as base
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ENV VERSION=1.36.1
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ENV SRC_HASH=b8cc24c9574d809e7279c3be349795c5d5ceb6fdf19ca709f80cde50e47de314
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ENV SRC_FILE=busybox-${VERSION}.tar.bz2
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ENV SRC_SITE=https://busybox.net/downloads/${SRC_FILE}
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FROM base as fetch
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ADD --checksum=sha256:${SRC_HASH} ${SRC_SITE} .
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FROM fetch as build
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COPY --from=stagex/stage3 . /
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RUN tar -xjf ${SRC_FILE}
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WORKDIR busybox-${VERSION}
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ENV KCONFIG_NOTIMESTAMP=1
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RUN --network=none <<-EOF
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set -eux
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setConfs='
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CONFIG_LAST_SUPPORTED_WCHAR=0
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CONFIG_STATIC=y
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'
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unsetConfs='
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CONFIG_FEATURE_SYNC_FANCY
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CONFIG_FEATURE_HAVE_RPC
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CONFIG_FEATURE_INETD_RPC
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CONFIG_FEATURE_UTMP
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CONFIG_FEATURE_WTMP
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'
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make defconfig
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for conf in $unsetConfs; do
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sed -i \
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-e "s!^$conf=.*\$!# $conf is not set!" \
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.config
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done
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for confV in $setConfs; do
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conf="${confV%=*}"
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sed -i \
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-e "s!^$conf=.*\$!$confV!" \
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-e "s!^# $conf is not set\$!$confV!" \
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.config
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if ! grep -q "^$confV\$" .config; then
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echo "$confV" >> .config
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fi
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done
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make oldconfig
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for conf in $unsetConfs; do
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! grep -q "^$conf=" .config
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done
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for confV in $setConfs; do
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grep -q "^$confV\$" .config
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done
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make
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EOF
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FROM build as install
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RUN --network=none <<-EOF
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set -eux
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mkdir -p /rootfs/bin
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cp busybox /rootfs/bin
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cp busybox /bin
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cd /rootfs
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mkdir -p home/user var/tmp etc tmp lib bin
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/bin/busybox --install -s bin
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echo "user:x:1000:" > etc/group
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echo "user:x:1000:1000::/home/user:/bin/sh" > etc/passwd
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ln -sT /lib lib64
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chown -R 1000:1000 /rootfs/home/user /rootfs/tmp /rootfs/var/tmp
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EOF
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RUN find /rootfs -exec touch -hcd "@0" "{}" +
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FROM stagex/filesystem as package
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COPY --from=install /rootfs/. /
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WORKDIR /home/user
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USER 1000:1000
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ENTRYPOINT ["/bin/sh"]
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ENV TZ=UTC
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ENV LANG=C.UTF-8
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ENV SOURCE_DATE_EPOCH=1
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ENV KCONFIG_NOTIMESTAMP=1
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ENV PS1="stage4 $ "
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