diff --git a/ci/docker/deb/Dockerfile b/ci/docker/deb/Dockerfile
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+################################################################################
+#  Dockerfile to setup a Debian / Ubuntu type docker image, suitable
+#  for building ATS, perhaps as part of a Jenkins CI. Note that some
+#  of the features in here are specific to the official ATS Jenkins
+#  setup, see comment below.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+################################################################################
+# These can (should?) be overridden from the command line with ----build-arg, e.g.
+#    docker build --build-arg OS_VERSION=19.10 --build-arg OS_TYPE=ubuntu
+#
+ARG OS_VERSION=19.10
+ARG OS_TYPE=ubuntu
+
+# This does currently not work, e.g. this I'd expect to make it conditional:
+#
+#    RUN if [ "${ADD_JENKINS}" = "yes" ]; then apt-get ...
+#
+ARG ADD_JENKINS=no
+
+# Alright, lets pull in the base image from docker.io
+FROM ${OS_TYPE}:${OS_VERSION}
+
+################################################################################
+# All the Debian packages necessary for building ATS. you do not need all
+# these if you only intend to run ATS!
+#
+# This runs all the DEB installations, starting with a system level update. tzdata
+# needs to be installed, because TCL needs it, and we need this non-interactive.
+# ToDo: Remove tzdata when TCL is fully gone
+RUN apt-get update; apt-get -y dist-upgrade; \
+    DEBIAN_FRONTEND=noninteractive apt-get -y install tzdata apt-utils; \
+    # Compilers
+    apt-get -y install ccache make pkgconf bison flex g++ clang gettext libc++-dev \
+    # Autoconf
+    autoconf automake libtool autotools-dev dh-apparmor debhelper \
+    # Various other tools
+    git distcc file wget openssl hwloc intltool-debian; \
+    # Devel packages that ATS needs
+    apt-get -y install libssl-dev libexpat1-dev libpcre3-dev libcap-dev \
+    libhwloc-dev libhwloc5 libunwind8 libunwind8-dev \
+    tcl-dev tcl8.6-dev libjemalloc-dev libluajit-5.1-dev liblzma-dev \
+    libhiredis-dev libbrotli-dev libncurses-dev libgeoip-dev libmagick++-dev; \
+    # Optional: This is for the OpenSSH server, and Jenkins account + access (comment out if not needed)
+    apt-get -y install openssh-server openjdk-8-jre && mkdir /run/sshd; \
+    groupadd  -g 665 jenkins && \
+    useradd -g jenkins -u 989 -s /bin/bash -M -d /home/jenkins -c "Jenkins Continuous Build server" jenkins && \
+    mkdir -p /var/jenkins && chown jenkins.jenkins /var/jenkins
+
+# This is for autest stuff, skipping since it's pulling in a *lot* ...
+# apt-get -y install python3 httpd-tools procps-ng nmap-ncat pipenv \
+# python3-virtualenv python3-gunicorn python3-requests python3-httpbin; \