FROM golang:alpine AS builder
WORKDIR /go/src/jrouter
COPY . .
RUN --mount=type=cache,target=/root/.cache/go-build \
    --mount=type=cache,target=/go/pkg/mod \
    apk add build-base libpcap-dev && \
    CGO_ENABLED=1 CGO_FLAGS='-static' go build -v -o jrouter .

FROM alpine:latest
COPY --from=builder /go/src/jrouter/jrouter /usr/bin/
RUN apk add libpcap
ENTRYPOINT ["/usr/bin/jrouter", "-config", "/etc/jrouter/jrouter.yaml"]