FROM golang:1.21-bullseye as builder

COPY . /go/src/app
WORKDIR /go/src/app
RUN GOOS=linux CGO_ENABLED=0 go build -o /bin/app -a -installsuffix cgo -trimpath -ldflags "-s -w" -tags musl

FROM alpine
RUN apk update && apk --no-cache upgrade
COPY --from=builder /bin/app /bin/
CMD []
ENTRYPOINT ["/bin/app"]