Refresh the Dockerfile

* Update to Kafka 4.2.0 which is current
* Switch to HTTPS Apache Archive from HTTP GaTech clone
* Move the Kafka install first in the file to avoid rebuilding that
  layer when sources change.
* Update conda setup to comply with new accept policy
* Switch everything to Python 3.14

Author: dwskoog

Dockerfile

@@ -1,45 +1,50 @@
-FROM python:3.7.5-slim
+# syntax=docker/dockerfile:1
+FROM python:3.14-slim
 USER root
 SHELL ["/bin/bash", "--login", "-c"]
 
-ENV DEBIAN_FRONTEND noninteractive
-ENV SCALA_VERSION 2.11
-ENV KAFKA_VERSION 2.3.0
-ENV KAFKA_HOME /opt/kafka_"$SCALA_VERSION"-"$KAFKA_VERSION"
+ARG DEBIAN_FRONTEND="noninteractive"
+ENV STREAMZ_ENV="streamz-dev"
+ENV SCALA_VERSION="2.13"
+ENV KAFKA_VERSION="4.2.0"
+ENV KAFKA_HOME="/opt/kafka_${SCALA_VERSION}-${KAFKA_VERSION}"
+ARG KAFKA_SRC_TGZ="https://archive.apache.org/dist/kafka/${KAFKA_VERSION}/kafka_${SCALA_VERSION}-${KAFKA_VERSION}.tgz"
+
+RUN apt-get update && \
+    apt-get install --yes --no-install-recommends wget vim && \
+    rm -rf /var/lib/apt/lists/*
+
+# Install Kafka & Expose Port
+RUN wget -q "${KAFKA_SRC_TGZ}" -O "/tmp/kafka_${SCALA_VERSION}-${KAFKA_VERSION}.tgz" && \
+    tar xfz "/tmp/kafka_${SCALA_VERSION}-${KAFKA_VERSION}.tgz" -C /opt && \
+    rm "/tmp/kafka_${SCALA_VERSION}-${KAFKA_VERSION}.tgz"
+EXPOSE 9092
 
 # Install conda
 ADD https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh /miniconda.sh
-RUN sh /miniconda.sh -b -p /conda && /conda/bin/conda update -n base conda
+RUN sh /miniconda.sh -b -p /conda && \
+    /conda/bin/conda tos accept --override-channels --channel https://repo.anaconda.com/pkgs/main && \
+    /conda/bin/conda tos accept --override-channels --channel https://repo.anaconda.com/pkgs/r && \
+    /conda/bin/conda update -n base conda
 RUN echo "PATH=${PATH}:/conda/bin" >> ~/.bashrc
 
 # Add Streamz source code to the build context
 ADD . /streamz/.
 
 # Create the conda environment
-RUN conda env create --name streamz-dev -f /streamz/conda/environments/streamz_dev.yml
+RUN conda env create --name ${STREAMZ_ENV} -f /streamz/ci/environment-py314.yml
 RUN conda init bash
 
-# Ensures subsequent RUN commands do not need the "conda activate streamz_dev" command
-RUN echo "conda activate streamz_dev" >> ~/.bashrc
-
-# Build streamz from source
-RUN cd /streamz && \
-    python setup.py install
+# Ensures subsequent RUN commands do not need the "conda activate ${STREAMZ_ENV}" command
+RUN echo "conda activate ${STREAMZ_ENV}" >> ~/.bashrc
 
 # Install optional dependencies in the conda environment
 RUN conda install -c conda-forge jupyterlab \
                                  numpy \
-                                 pandas \
-                                 wget \
-                                 vim
+                                 pandas
 
-# Install Kafka
-RUN wget -q http://www.gtlib.gatech.edu/pub/apache/kafka/2.3.0/kafka_2.11-2.3.0.tgz -O /tmp/kafka_"$SCALA_VERSION"-"$KAFKA_VERSION".tgz && \
-        tar xfz /tmp/kafka_"$SCALA_VERSION"-"$KAFKA_VERSION".tgz -C /opt && \
-        rm /tmp/kafka_"$SCALA_VERSION"-"$KAFKA_VERSION".tgz
-
-# Zookeeper & Kafa ports
-EXPOSE 2181
-EXPOSE 9092
+# Build streamz from source
+RUN cd /streamz && \
+    pip install -e . --no-deps
 
 CMD ["/streamz/docker/scripts/entry.sh"]