GenghisTask - Node Red

This node-red plugin is an improvement of the exec plugin.

• task can be executed in a remote server
• task can be executed within a docker container
• supply extra argument to executable
• call a script instead of exec a command

GenghisTask was a standalone application but you may prefer Node Red instead. This plugin allow you to use the concept and convention of a "GenghisTask Workspace" in Node Red without GenghisTask at all.

Install

Suggested node red startup with docker

mkdir nodered
cd nodered
docker run -d -it -e HOSTDIR=`pwd` -p 1880:1880  -v /var/run/docker.sock:/var/run/docker.sock  -v `pwd`/data:/data -v `pwd`/ssh:/usr/src/node-red/.ssh --name mynodered nodered/node-red

-v	/var/run/docker.sock	/var/run/docker.sock
-v	pwd/data	/data
-v	pwd/ssh	/usr/src/node-red/.ssh
-e	HOSTDIR	pwd

Install the ➡️ lattest release in the node red Managed palette.

Running with ssh

In the node red settings, you can get the ssh key public key of node red to execute task remotely or clone a workspace from a protected repository

Running docker inside docker

The default nodered image does not contains docker. You may install the docker client to be able to execute task within a docker container.

echo "apk add --update --no-cache docker-cli  docker-compose" | docker exec -uroot -i mynodered sh
docker exec -uroot mynodered addgroup docker -g `grep docker /etc/group | cut -d : -f 3`
docker exec -uroot mynodered addgroup node-red docker
docker restart mynodered

Cron

A task can be trigger manually with its input button in nodered. I also use third party extension node-red-contrib-cron-plus.

Workspace

You must use a remote git repository where the source code of each task will be under version control.

The repository contains an environement folder and a shell folder. They define a list of ssh server, docker images and shell script to execute.

You can start to create a typical ➡️ workspace here.