johnnyslim/slimdhprofile repository overview

Container profile provided by Slim.AI⁠

⁠Build your own Docker image

The docker-custom directory contains files you need to build your own images.

The follow steps describe in short which steps to take to build your own images.

⁠1. git clone

Clone the Node-RED Docker project from github

git clone https://github.com/node-red/node-red-docker.git

Change dir to docker-custom

cd node-red-docker/docker-custom

⁠1. package.json

• Change the node-red version in package.json (from the docker-custom directory) to the version you require
• Add optionally packages you require

⁠2. flows.json

• The flows.json file is the default flow that will be used if no external volume is mounted to /data. You can replace this by a preconfigured flow and launch it by not mounting a /data volume, but most users will mount and save data and flows externally.

⁠3. docker-alpine.sh, docker-debian.sh

The docker-alpine.sh and docker-debian.sh are helper scripts to build a custom Node-RED docker image. The docker-alpine script is based on Alpine as per the default docker package. The docker-debian is based on debian that may be more familiar to users and may support extra customisation more easily.

Change the build arguments as needed:

• --build-arg ARCH=amd64 : architecture your are building for (arm32v6, arm32v7, arm64v8, amd64)
• --build-arg NODE_VERSION=10 : NodeJS version you like to use
• --build-arg NODE_RED_VERSION=${NODE_RED_VERSION} : don't change this, ${NODE_RED_VERSION} gets populated from package.json
• --build-arg OS=alpine : the linux distro to use (alpine)
• --build-arg BUILD_DATE="$(date +"%Y-%m-%dT%H:%M:%SZ")" : don't change this
• --build-arg TAG_SUFFIX=default : to build the default or minimal image
• --file Dockerfile.custom : Dockerfile to use to build your image.
• --tag testing:node-red-build : set the image name and tag

⁠4. Run docker-alpine.sh or docker-debian.sh

Run docker-alpine.sh or docker-debian.sh

$ ./docker-alpine.sh

This starts building your custom image and might take a while depending on the system you are running on.

When building is done you can run the custom image by the following command:

$ docker run -it -p1880:1880 -v node_red_data:/data --name myNRtest testing:node-red-build

With the following command you can verify your docker image:

$ docker inspect testing:node-red-build

⁠5. Advanced Configuration

The relevant Dockerfile can be modified as required. Examples of how to extend Dockerfiles to add prerequisite libraries can be found here⁠.