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tools: Use a multi-stage build for mkimage-iso-bios

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mkimage-iso-bios contained the full alpine base. Only
copy packages actually needed.

Signed-off-by: Rolf Neugebauer <rn@rneugeba.io>
This commit is contained in:
Rolf Neugebauer 2018-07-24 21:31:38 +01:00
parent d04a42868f
commit 4ca0458526
1 changed files with 13 additions and 10 deletions
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tools/mkimage-iso-bios/Dockerfile
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@ -1,13 +1,16 @@
FROM linuxkit/alpine:daed76b8f1d28cdeeee215a95b9671c682a405dc
RUN \
apk update && apk upgrade && \
apk add --no-cache \
libarchive-tools \
FROM linuxkit/alpine:daed76b8f1d28cdeeee215a95b9671c682a405dc as mirror
RUN mkdir -p /out/etc/apk && cp -r /etc/apk/* /out/etc/apk/
RUN apk add --no-cache --initdb -p /out \
alpine-baselayout \
busybox \
cdrkit \
libarchive-tools \
syslinux \
&& true
RUN mv /out/etc/apk/repositories.upstream /out/etc/apk/repositories
FROM scratch
WORKDIR /
COPY --from=mirror /out/ /
COPY . .
ENTRYPOINT [ "/make-iso" ]