# Dockerfile to build linuxkit/sysctl for linuxkit
FROM linuxkit/alpine:7f3944798557de5518a56e3437d7ed982701f224 AS mirror

RUN apk add --no-cache go musl-dev
ARG GOPKGVERSION
ENV ldflags="-X main.Version=$GOPKGVERSION"
ENV GOPATH=/go PATH=$PATH:/go/bin
# Hack to work around an issue with go on arm64 requiring gcc
RUN [ $(uname -m) = aarch64 ] && apk add --no-cache gcc || true

COPY . /go/src/sysctl/
RUN go-compile.sh /go/src/sysctl

FROM scratch
ENTRYPOINT []
CMD []
WORKDIR /
COPY --from=mirror /go/bin/sysctl /usr/bin/sysctl
COPY etc/ /etc/
CMD ["/usr/bin/sysctl"]