FROM golang:alpine AS builder
RUN apk add --update gcc musl-dev git
WORKDIR /app
COPY . .
RUN CGO_ENABLED=1 go build -o acme-dns

FROM alpine:latest
WORKDIR /root/
COPY --from=builder /app/acme-dns .
COPY --from=builder /app/config.cfg /etc/acme-dns/config.cfg
RUN mkdir -p /var/lib/acme-dns
RUN apk --no-cache add ca-certificates && update-ca-certificates
VOLUME ["/etc/acme-dns", "/var/lib/acme-dns"]
ENTRYPOINT ["./acme-dns", "-c", "/etc/acme-dns/config.cfg"]
EXPOSE 53 80 443
EXPOSE 53/udp