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https://github.com/linuxkit/linuxkit.git
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c48acd5d9d
Since these are the user login containers, having the ability to add packages is useful (e.g. I quite often find I want strace). Doing this requires that we not share `/var` with the login containers since we want the apk database therein. Previously it was thought that the containers might need some parts of `/var` for `ctr` to work (e.g. `/var/lib/containerd`) but this is not the case now (if it ever was) based on my testing. Fixes #2206. Signed-off-by: Ian Campbell <ijc@docker.com>
35 lines
1.3 KiB
Docker
35 lines
1.3 KiB
Docker
FROM linuxkit/alpine:a39a433162a873519910a07beeb3e8db22529956 AS mirror
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RUN mkdir -p /out/etc/apk && cp -r /etc/apk/* /out/etc/apk/
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RUN apk add --no-cache --initdb -p /out \
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alpine-baselayout \
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apk-tools \
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busybox \
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ca-certificates \
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musl \
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tini \
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util-linux \
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&& true
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RUN mv /out/etc/apk/repositories.upstream /out/etc/apk/repositories
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#
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# We require a version of `setsid(1)` which supports the `-w`
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# option, which is not available in all implementations (e.g. the
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# `busybox` implementation does not support it). When this is run
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# as part of a LinuxKit `init` image (rather than as a standalone
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# container) we cannot guarantee which version of `setsid` will
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# be present once the layers are combined, so we take a copy of
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# our own, known good, version for use later.
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RUN cp /out/usr/bin/setsid /out/usr/bin/setsid.getty
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# we really do not want a rogue inittab here
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RUN rm -rf /out/etc/inittab
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FROM scratch
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ENTRYPOINT ["/sbin/tini","-s","-v","--"]
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WORKDIR /
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COPY --from=mirror /out/ /
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COPY usr/ /usr/
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COPY etc/ /etc/
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CMD ["/usr/bin/rungetty.sh"]
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LABEL org.mobyproject.config='{"pid": "host", "net":"host", "binds": ["/run:/run", "/tmp:/tmp", "/etc:/hostroot/etc", "/usr/bin/ctr:/usr/bin/ctr", "/usr/bin/runc:/usr/bin/runc", "/containers:/containers","/dev:/dev","/sys:/sys"], "capabilities": ["all"]}'
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