FROM golang:1.22-alpine AS dev

COPY . /var/app
WORKDIR /var/app

ENV GO111MODULE="on" \
    CGO_ENABLED=0 \
    GOOS=linux

EXPOSE 80
ENTRYPOINT ["sh"]


FROM dev as build

RUN go mod download && go mod verify
RUN go build -o ntppool-exporter main.go$
RUN chmod +x ntppool-exporter


FROM scratch AS prod

WORKDIR /app
COPY --from=build /var/app/ntppool-exporter /bin/

LABEL maintainer="Adora Laura Kalb <adora@lila.network>"

EXPOSE     43609
ENTRYPOINT ["/bin/ntppool-exporter"]