OpenDXL Node-RED Docker

opendxl · Aug 10th 2018

opendxl added a new solution:

OpenDXL Node-RED Docker 0.1.5 opendxl Aug 10th 2018 Solution

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Overview

This repository contains the files necessary to build a Docker image that consists of the core Node-RED installation along with a set of standard OpenDXL Node-RED extensions.

The Docker image also exposes a volume that can be easily mapped via higher-level Docker interfaces (Kitematic, Docker Cloud, etc.). This supports the ability to persist Node-RED configuration data external to the Docker container, allowing for upgrades of the Docker image without the loss of configuration information.

The Docker image has SSL enabled by default (use https://) and will generate a self-signed certificate if a key-pair is not found on startup.

The default administrator credentials used to login to the console are admin/password. See the Node-RED security page for information on updating this password.

A pre-built version of this Docker image can be obtained via the OpenDXL Node-RED Docker registry on DockerHub.

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opendxl · Aug 17th 2018

opendxl added a new version:

OpenDXL Node-RED Docker 0.1.5 opendxl Aug 10th 2018 Solution

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OpenDXL Node-RED Docker Release (0.1.1)

Updated to support Python including the ability to add new Python libraries.

marcelosz · Aug 20th 2018

Would be great to have OpenDXL Python Libs on the docker image, so that we can use Python-based Nodes too.

chrissmith · Aug 20th 2018

Quote from marcelosz:

Would be great to have OpenDXL Python Libs on the docker image, so that we can use Python-based Nodes too.

Agreed. We could definitely add the common OpenDXL libraries by default, but the intent is to allow for any set of Python libraries to be installed.

To install a Python package you can do the following (after opening a shell in the container):

Shell-Script: Install Python Package

cd /data
source node-red-py2-env/bin/activate
pip install <package>

If you want to install a NPM package you can do the following (after opening a shell in the container):

Shell-Script: Install NPM Package

cd /data
npm install <package> --save

Also, it is important to map an external volume to the "/data" VOLUME. This allows any installed packages (and flows) to persist when the Node-RED image is upgraded.

Thanks,

Chris

chrissmith · Aug 21st 2018

Another interesting way to install Python packages is from within Node-RED itself. I have attached a flow that allows for specifying a set of Python packages to install (space delimited) in the "packages to install" node.

I also added another flow that displays the current version of the Python DXL client that is installed.

The code for the flow is as follows:

Code: Python Package Installation Flow

[
{
"id": "dc114522.035498",
"type": "tab",
"label": "Install Python Packages",
"disabled": false,
"info": ""
},
{
"id": "e243c2d3.c64c4",
"type": "inject",
"z": "dc114522.035498",
"name": "packages to install",
"topic": "",
"payload": "dxlclient dxltieclient",
"payloadType": "str",
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"x": 217,
"y": 145,
"wires": [
[
"12cc838f.2e670c"
]
]
},
{
"id": "12cc838f.2e670c",
"type": "exec",
"z": "dc114522.035498",
"command": "pip install --upgrade",
"addpay": true,
"append": "",
"useSpawn": "true",
"timer": "",
"oldrc": false,
"name": "",
"x": 460,
"y": 145.5,
"wires": [
[
"9f4a50df.dd91b"
],
[
"9f4a50df.dd91b"
],
[
"9f4a50df.dd91b"
]
]
},
{
"id": "9f4a50df.dd91b",
"type": "debug",
"z": "dc114522.035498",
"name": "",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "false",
"x": 725,
"y": 220,
"wires": []
},
{
"id": "f41af1a.a04ef1",
"type": "python-function",
"z": "dc114522.035498",
"name": "show dxlclient version (Python)",
"func": "import dxlclient\nmsg[\"payload\"] = dxlclient.__version__\nreturn msg",
"outputs": 1,
"x": 426,
"y": 307,
"wires": [
[
"9f4a50df.dd91b"
]
]
},
{
"id": "9edbdfd5.a30fb",
"type": "inject",
"z": "dc114522.035498",
"name": "run",
"topic": "",
"payload": "",
"payloadType": "str",
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"x": 172,
"y": 307,
"wires": [
[
"f41af1a.a04ef1"
]
]
},
{
"id": "3142d610.ddfc4a",
"type": "comment",
"z": "dc114522.035498",
"name": "specify the package to install (space delimited)",
"info": "",
"x": 222,
"y": 92,
"wires": []
},
{
"id": "43cad39f.fad4cc",
"type": "comment",
"z": "dc114522.035498",
"name": "display the version of the dxlclient (Python) that is installed",
"info": "",
"x": 259,
"y": 258,
"wires": []
}
]

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Thanks,

Chris

opendxl · Sep 21st 2018

opendxl added a new version:

OpenDXL Node-RED Docker 0.1.5 opendxl Aug 10th 2018 Solution

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OpenDXL Node-RED Docker Release (0.1.2)

Updated to use latest Node-RED DXL nodes

Updated to install node-red config node by default

opendxl · Sep 24th 2018

opendxl added a new version:

OpenDXL Node-RED Docker 0.1.5 opendxl Aug 10th 2018 Solution

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OpenDXL Node-RED Docker Release (0.1.3)

Added SSL support (automatically generates self-signed certificate if key-pair is not present)

Enabled authentication by default

opendxl · Oct 12th 2018

opendxl added a new version:

OpenDXL Node-RED Docker 0.1.5 opendxl Aug 10th 2018 Solution

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OpenDXL Node-RED Docker Release (0.1.4)

Updated DXL Node-RED extension to 0.1.3

opendxl · Jun 5th 2019

opendxl added a new version:

OpenDXL Node-RED Docker 0.1.5 opendxl Aug 10th 2018 Solution

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OpenDXL Node-RED Docker Release (0.1.5)

Updated to fix issues with symbolic links (NPM and PIP) and Docker mounted volumes

OpenDXL Node-RED Docker

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