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Nodered in a docker container and gpio

Created by: RomoSapiens at: 4/25/2022 11:21 AM (3 Replies)

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4/25/2022 11:21 AM	Rate (0)
RomoSapiens Member Joined: 4/11/2022 Last visit: 4/26/2022 Posts: 4 Rating: (0)	Hi, is it possible to run nodered within a docker container and still use gpio? On nodered's official docs I found this guide for Raspberry Pi but this is not RPI :) https://nodered.org/docs/getting-started/docker Any help would be appreciated. Regards!

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4/25/2022 2:50 PM	Rate (0)
bergmanu Platinum Expert Joined: 4/28/2015 Last visit: 8/4/2022 Posts: 2894 Rating: (351)	Hi, you can follow this instruction from apastore. This is described for IndOS, but works with docker as well. Best regards!
	Out of office until Thursday, August 11th
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4/25/2022 4:35 PM	Rate (0)
RomoSapiens Member Joined: 4/11/2022 Last visit: 4/26/2022 Posts: 4 Rating: (0)	Hi, thank you for the swift reply and pointers, do you maybe have a working nodered docker image that implemented this so that it can use gpio successfully? In any case, thank again for the help Kind regards!
	Last edited by: RomoSapiens at: 04/25/2022 16:42:15
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4/27/2022 6:18 PM	Rate (0)
apastore Regular Member Joined: 10/22/2020 Last visit: 7/17/2022 Posts: 16 Rating: (0)	Hi there, as described in the instructions linked by bergmanu, the NodeRED modules of the example image can be included. However, in order to be able to use them in a Docker container, we also need to implement the local version of MRAA modified for the IOT2050. We are currently working on a container image that we could make available in the future. Please have a look at the following snippet from a Dockerfile, which could provide you with a basis. Here, the building process draws on the required resources of an IOT2050 with Exampe Image. FROM <your-base-image> # install pacakges RUN apt-get update \ && apt-get upgrade -y \ && apt-get install -y --no-install-recommends \ apt-utils \ software-properties-common \ nano # copy binaries COPY usr/ /root/usr/. # install python3.7 for mraa RUN add-apt-repository ppa:deadsnakes/ppa \ && apt-get update \ && apt-get install -y python3.7 \ && rm -rf /var/lib/apt/lists/* \ # create necessary folders && mkdir /usr/lib/node_modules \ && mkdir /usr/share/java \ && mkdir /usr/lib/python3.7/dist-packages \ && mkdir /usr/lib/python3.7/dist-packages/__pycache__ \ && mkdir /usr/lib/python3.8/dist-packages/__pycache__ \ # move binaries into right directory && mv /root/usr/bin/* /usr/bin/. \ && mv /root/usr/share/java/* /usr/share/java/. \ && mv /root/usr/include/mraa.h* /usr/include/. \ && mv /root/usr/include/mraa /usr/include/. \ && mv /root/usr/lib/aarch64-linux-gnu/libmraa* /usr/lib/aarch64-linux-gnu/. \ && mv /root/usr/lib/aarch64-linux-gnu/pkgconfig/* /usr/lib/aarch64-linux-gnu/pkgconfig/. \ && cp /root/usr/lib/python3.7/dist-packages/_mraa.so /usr/lib/python3.7/dist-packages. \ && cp /root/usr/lib/python3.7/dist-packages/mraa.py /usr/lib/python3.7/dist-packages/. \ && cp /root/usr/lib/python3.7/dist-packages/__pycache__/mraa.cpython-37.pyc /usr/lib/python3.7/dist-packages/__pycache__/. \ && mv /root/usr/lib/python3.7/dist-packages/_mraa.so /usr/lib/python3.8/dist-packages/. \ && mv /root/usr/lib/python3.7/dist-packages/mraa.py /usr/lib/python3.8/dist-packages/. \ && mv /root/usr/lib/python3.7/dist-packages/__pycache__/mraa.cpython-37.pyc /usr/lib/python3.8/dist-packages/__pycache__/. \ # libpython binaries needed for mraa && mv /root/usr/share/lintian/overrides/libpython3.7* /usr/share/lintian/overrides/. \ && mv /root/usr/lib/aarch64-linux-gnu/libpython3.7m.so.1* /usr/lib/aarch64-linux-gnu/. \ # libjson-c binaries needed for mraa && mv /root/usr/lib/aarch64-linux-gnu/libjson* /usr/lib/aarch64-linux-gnu/. \ && rm -rf /root/usr \ && cd /usr/lib/aarch64-linux-gnu/ \ && ln -s libjson-c.so.3.0.1 libjson-c.so.3 \ && rm libjsoncpp.so.1 \ && ln -s libjsoncpp.so.1.7.4 libjsoncpp.so.1 \ && ln -s libmraa.so.2 libmraa.so \ && ln -s libmraa.so.2.2.0 libmraa.so.2 \ && ln -s libpython3.7m.so.1.0 libpython3.7m.so.1 # set workdirectory (my home directory) WORKDIR /root Feel free to share your experiences here and if we can help further. BR

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