FROM gcr.io/gcp-runtimes/go1-builder:1.13 as builder
ENV CGO_ENABLED=0
WORKDIR /go/src/
COPY image/go.mod .
RUN /usr/local/go/bin/go mod download
COPY main.go .
RUN /usr/local/go/bin/go build -v -o /usr/local/bin/config-function ./

FROM alpine:latest
COPY --from=builder /usr/local/bin/config-function /usr/local/bin/config-function
CMD ["/usr/local/bin/config-function"]