I need to install these dependencies in advance, I am using docker to install nodered, how to install these dependencies, is there an easy way.
Is this a duplicate of How to install the required dependencies ?
Hi @lei1 this is not really node-red question & this not a docker forum.
Your options are (as far i can see)...
- ask on stackoverlfow or a docker forum
- learn how to create custom images.
- give up on docker and install to the OS
- wait and hope someone will come along and be nice enough & competent to help with this non-node-red question
PS, this is a duplicate thread. Please dont double post.
@Steve-Mcl I don't think it is unreasonable to ask for help installing Node-RED node in the Node-RED provided docker image. This is not a 'non-node-red' question.
@lei1 this is definitely an area our docs don't provide a lot of help with, so it does currently require a good knowledge of Docker and how to build containers.
I can't give you some immediate help on it right now... but I've asked someone who knows more Docker than I do to take a look and respond to your question.
Ok, my apologies, I considered this non node-red as it was an issue particular to a contrib node with pre-reqs outside of the core node-red setup.
Noted for future :+1
thank you so much
I have a blog post I've been working on but it's not quite ready to publish just yet, but here is section of it that I hope should help.
As well as the pre-built containers the node-red-docker project on github also contains the Dockerfile and scripts to build a version of the Node-RED Docker container based on the Debian Linux distribution. This uses the normal glibc library and also being a mainstream Linux distribution it is more likely to be used as the basis for instructions for install many libraries and pre-requisites for NodeJS nodes.
You can build the container locally by running the following commands:
$ git clone https://github.com/node-red/node-red-docker.git $ cd node-red-docker /docker-custom $ ./docker-debian.sh
This will build a container image called
testing:node-red-build by default and which can be run as follows:
$ docker run -d -p 1880:1880 -v node_red_data:/data --name myNRtest testing:node-red-build
Now you have a debian based container it can either be used as the base for a new Dockerfile which can be used to add in any prerequisite libraries or applications.
For example to install the prerequisite libraries for node-red-contrib-machine-learning node the following Dockerfile will extend the output of the previous command and add the required python libraries.
FROM testing:node-red-build USER root RUN apt-get install -y python3-pip python3-numpy python3-pandas RUN pip install scikit-learn tensorflow USER node-red
Another approach would be to edit the Dockerfile.debian found in the
docker-custom directory mentioned earlier.
... COPY --from=build /usr/src/node-red/prod_node_modules ./node_modules # Chown, install devtools & Clean up RUN chown -R node-red:root /usr/src/node-red && \ apt-get update && apt-get install -y build-essential python-dev python3 \ python3-pip python3-numpy python3-pandas && \ pip install scikit-learn tensorflow && \ rm -r /tmp/* USER node-red ...
Thank you very much for your help, it was so useful for me, thank you!
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