FROM golang:1.17 as builder ARG GIT_TAG WORKDIR /app COPY . . ENV GIT_TAG=${GIT_TAG} ENV GO111MODULE=on ENV CGO_ENABLED=0 RUN make build FROM busybox:1.31 WORKDIR /app COPY --from=builder /app/bin/k3d-tools . ENTRYPOINT [ "/app/k3d-tools"]