# syntax=docker/dockerfile-upstream:master-labs
FROM docker.io/library/golang:1.19.1-alpine3.16 AS diwtbuild

WORKDIR /diwt

COPY . .

RUN CGO_ENABLED=0 GOFLAGS="-buildmode=pie -trimpath -mod=readonly -modcacherw" \
    go build -v -ldflags '-s -w' .


FROM docker.io/library/alpine:3.16.2

ARG VCS_REF

COPY --from=diwtbuild /diwt/diwt /usr/bin/diwt

# have a default.
# this would, of course, require mounting a file to the following location.
CMD ["/usr/bin/diwt", "-m", "/matrix.txt"]

#  vim: set ts=4 ft=dockerfile fenc=utf-8 ff=unix :