Dockerfile

ARG NETLOGO_VERSION=7.0.4
# file exists at
# https://downloads.netlogo.org/7.0.4/NetLogo-7.0.4-64.tgz
ARG NETLOGO_DOWNLOAD_URL=https://downloads.netlogo.org

# ---- Builder stage: download, verify, and smoke-test NetLogo ----
FROM eclipse-temurin:17-jre-jammy AS builder

ARG NETLOGO_VERSION
ARG NETLOGO_DOWNLOAD_URL

ENV DEBIAN_FRONTEND=noninteractive \
    NETLOGO_HOME=/opt/netlogo \
    NETLOGO_TARBALL=NetLogo-${NETLOGO_VERSION}-64.tgz

RUN apt-get update \
 && apt-get install -y --no-install-recommends ca-certificates wget \
 && rm -rf /var/lib/apt/lists/*

WORKDIR /opt

COPY checksums/${NETLOGO_TARBALL}.sha256 /tmp/${NETLOGO_TARBALL}.sha256

RUN wget -O "/tmp/${NETLOGO_TARBALL}" \
      "${NETLOGO_DOWNLOAD_URL}/${NETLOGO_VERSION}/${NETLOGO_TARBALL}" \
 && cd /tmp \
 && sha256sum --check --strict "${NETLOGO_TARBALL}.sha256" \
 && tar -xzf "${NETLOGO_TARBALL}" \
 && rm "${NETLOGO_TARBALL}" "${NETLOGO_TARBALL}.sha256" \
 && mv "NetLogo ${NETLOGO_VERSION}" "${NETLOGO_HOME}"

# Copy example model for build-time verification only
COPY examples /opt/examples

# Smoke test: verify NetLogo runs headless before promoting to final image
RUN /opt/netlogo/netlogo-headless.sh \
      --model /opt/examples/wolf-sheep-sd.nlogox \
      --experiment "smoke test" \
      --table /dev/null

# ---- Final stage: minimal image with only NetLogo (no examples) ----
FROM eclipse-temurin:17-jre-jammy

LABEL maintainer="Allen Lee <allen.lee@asu.edu>"

ENV DEBIAN_FRONTEND=noninteractive \
    LC_ALL=C.UTF-8 \
    LANG=C.UTF-8 \
    NETLOGO_HOME=/opt/netlogo \
    PATH=/opt/netlogo:${PATH}

COPY --from=builder /opt/netlogo /opt/netlogo

WORKDIR /work

ENTRYPOINT ["/opt/netlogo/netlogo-headless.sh"]