FROM golang:1.26.3-trixie AS build

ENV GOOS=linux
ENV CGO_ENABLED=0

ENV GOAMD64=v3
ENV GORISCV64=rva22u64
ENV GOARM64=v8.2

COPY . /src

RUN cd /src \
    && go build -ldflags="-s -w" -o server ./cmd/server \
    && chown 0:0 server \
    && chmod ugo+x server

FROM busybox:1.37.0 AS prod

COPY --from=build /etc/passwd /etc/passwd
COPY --from=build /etc/shadow /etc/shadow
COPY --from=build /src/server /server

VOLUME [ "/var/lib/cloudsave" ]
ENTRYPOINT [ "/server" ]