start of docker file to build ros_comm in 20.04 but using the buildfarm

Dockerfile.2004_ppa

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+# use the buildfarm ppa
+ARG IMAGE=ros:noetic-ros-base
+FROM ${IMAGE}
+ARG IMAGE
+RUN echo ${IMAGE}
+
+ENV DEBIAN_FRONTEND="noninteractive"
+
+# be able to source files
+RUN rm /bin/sh && ln -s /bin/bash /bin/sh
+
+RUN apt-get update -yqq
+RUN apt-get upgrade -yqq
+RUN apt-get install -yqq apt-utils
+
+RUN apt-cache search catkin | grep catkin && apt-get install -yqq ros-noetic-catkin
+# RUN apt-get install -yqq catkin
+RUN source /opt/ros/noetic/setup.bash && which catkin_test_results && dpkg -S /opt/ros/noetic/bin/catkin_test_results
+RUN apt-get install -yqq catkin-lint
+
+# apt installs
+RUN apt-get install -yqq git unzip wget libgtest-dev
+RUN apt-get install -yqq libboost-dev libb64-dev libeigen3-dev libfmt-dev libgmock-dev python-is-python3 python3-venv python3-numpy python3-vcstools
+
+# apt ros installs
+# RUN apt-get install -yqq python3-catkin-pkg python3-rosdep2 python3-rospkg python3-wstool
+
+ENV DEST=/other/install
+RUN mkdir $DEST -p
+ENV SRC=/other/src
+RUN mkdir $SRC -p
+
+WORKDIR $SRC
+RUN git clone https://github.com/dirk-thomas/vcstool.git
+WORKDIR $SRC/vcstool
+RUN python3 setup.py install --prefix=$DEST --record install_manifest.txt --single-version-externally-managed
+
+WORKDIR $SRC
+RUN git clone https://github.com/osrf/osrf_pycommon.git
+WORKDIR $SRC/osrf_pycommon
+RUN ls -l
+RUN python3 setup.py install --prefix=$DEST --record install_manifest.txt --single-version-externally-managed
+
+WORKDIR $SRC
+RUN git clone https://github.com/catkin/catkin_tools.git
+WORKDIR $SRC/catkin_tools
+RUN python3 setup.py install --prefix=$DEST --record install_manifest.txt --single-version-externally-managed
+
+WORKDIR $SRC
+RUN python --version | awk  '{print $2}' | cut -d'.' -f1
+RUN python --version | awk  '{print $2}' | cut -d'.' -f2
+# TODO(lucasw) these aren't working
+# RUN export PYTHON_MAJOR_VERSION=`python --version | awk  '{print $2}' | cut -d'.' -f1`
+# RUN export PYTHON_MINOR_VERSION=`python --version | awk  '{print $2}' | cut -d'.' -f2`
+# RUN PYTHON_MINOR_VERSION=`python --version | awk  '{print $2}' | cut -d'.' -f2`
+ARG PYTHON_MAJOR_VERSION=3
+ARG PYTHON_MINOR_VERSION=8
+ENV OPT_PYTHONPATH=$DEST/lib/python$PYTHON_MAJOR_VERSION.$PYTHON_MINOR_VERSION/site-packages/
+RUN echo $PYTHONPATH
+ENV PYTHONPATH=$OPT_PYTHONPATH
+RUN echo $PYTHONPATH
+
+ENV PATH=$DEST/bin:$PATH
+
+RUN which catkin
+RUN catkin --version
+
+# get packages and build
+ENV WS=/base_catkin_ws/src
+RUN mkdir $WS -p
+WORKDIR $WS
+COPY . $WS
+
+# ENV ROS_DISTRO="noetic"
+RUN echo $CMAKE_PREFIX_PATH
+
+WORKDIR $WS/..
+RUN catkin config --cmake-args -DCMAKE_BUILD_TYPE=Release -Wno-deprecated
+RUN catkin build -j1
+RUN catkin build -j1 --catkin-make-args run_tests
+RUN catkin_test_results --all | grep -v "Skipping"
+
+# make 'source' work
+SHELL ["/bin/bash", "-c"]
+RUN source devel/setup.sh && rospack list