# Build container
FROM debian:11-slim AS builder
RUN apt-get -y update && apt-get -y upgrade && apt-get -y install --no-install-recommends build-essential ca-certificates curl gcc libpcap-dev libvdeplug-dev && apt-get clean
ARG SIMH_VERSION=3.9-0
RUN curl -L https://github.com/simh/simh/archive/refs/tags/v${SIMH_VERSION}.tar.gz|tar -xzC /
WORKDIR /simh-${SIMH_VERSION}
RUN make pdp11 && ln /simh-${SIMH_VERSION}/BIN/pdp11 /pdp11

# Final container
FROM debian:11-slim
ENV DISK_FILENAME=rq0.dsk
RUN apt-get -y update && apt-get -y upgrade && apt-get -y install --no-install-recommends ca-certificates curl ed iproute2 iptables libpcap-dev net-tools telnet vdeplug

# Add Tini to handle reaping processes
ARG TINI_VERSION=0.19.0
ADD https://github.com/krallin/tini/releases/download/v${TINI_VERSION}/tini /tini
RUN chmod +x /tini
ENTRYPOINT ["/tini", "--"]

# Add CoreDNS to forward DNS based on /etc/resolv.conf
ARG COREDNS_VERSION=1.11.1
RUN curl -L https://github.com/coredns/coredns/releases/download/v${COREDNS_VERSION}/coredns_${COREDNS_VERSION}_linux_amd64.tgz|tar -xzC /usr/local/bin/

COPY --from=builder /pdp11 /usr/local/bin/pdp11

# Uses pattern matching to optionally copy rq0.dsk.gz if it exists
COPY startup.sh Corefile boot.ini.template rq0.dsk.g[z] /
CMD ["/startup.sh"]