Files
linuxkit/pkg/init/Dockerfile
Justin Cormack 6307ec9cd1 Rewrite /init in Go
This uses a more memory efficient copy, and gets us closer to
not having a shell in the base system if not required.

Signed-off-by: Justin Cormack <justin.cormack@docker.com>
2017-07-24 15:01:58 +01:00

30 lines
856 B
Docker

FROM linuxkit/alpine:9bcf61f605ef0ce36cc94d59b8eac307862de6e1 AS build
RUN apk add --no-cache --initdb alpine-baselayout make gcc musl-dev
ADD usermode-helper.c .
RUN make usermode-helper
RUN apk add --no-cache go musl-dev
ENV GOPATH=/go PATH=$PATH:/go/bin
COPY init.go /go/src/init/
COPY vendor /go/src/init/vendor/
RUN go-compile.sh /go/src/init/
FROM linuxkit/alpine:9bcf61f605ef0ce36cc94d59b8eac307862de6e1 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 musl
# Remove apk residuals. We have a read-only rootfs, so apk is of no use.
RUN rm -rf /out/etc/apk /out/lib/apk /out/var/cache
FROM scratch
ENTRYPOINT []
CMD []
WORKDIR /
COPY --from=build /go/bin/init /
COPY --from=build usermode-helper /sbin/
COPY --from=mirror /out/ /
COPY etc etc/
COPY bin bin/