node-red

important : this build will not run without an SD card addtional memory, due to Node-Red storage requeriments -Minimum 2GB Memory stick for AXC F 2152 (Part# 1043501 or 1061701)

Part 1 - Installation of Balena Engine https://github.com/PLCnext/Docker_GettingStarted

This is part of a series of articles that demonstrate how to install Balena-engine on PLCnext controller and work with OCI containers. In this article, we will install the Balena-engine and start OCI containers.

Installation

Establish the Connections

1. Connect the AXC F 2152 controller to Internet-Provider and Linux OS via LAN-cable.
2. Start the terminal on Linux OS and establish the SSH-Connection to PLC via command line "ssh admin@192.168.1.10".
3. Change to root via "su -" (root password have to be setup LINK)
4. Make sure your Internet connection is intact, via command-line ping 8.8.8.8

Download the Project to the controller

root@axcf2152:~# git clone https://github.com/PLCnext/Docker_GettingStarted.git 

root@axcf2152:~# cd Docker_GettingStarted

Install Balena

To install balena-engine run the setup.sh

root@axcf2152:~# chmod -c 777 setup.sh
root@axcf2152:~# ./setup.sh

Part 2 - Installation of node-red container

Install node-red from the official node-red container hub https://hub.docker.com/r/nodered/node-red

root@axcf2152:~# balena-engine run -it -p 1880:1880 --network=host --privileged --name=mynodered nodered/node-red

This command will install and create your container which will run with the balena-engine from boot by default, and if your unit is connected to the internet so should be Node-Red, allowing to install any contribution you desire from the interface

Now you can start and stop your Node_red container anytime by using the following commands.

root@axcf2152:~# balena-engine start mynodered
root@axcf2152:~# balena-engine stop mynodered

Part 3 - Optional - Auto Start Node-Red at device boot-up

this set of commands will create the necessary scheduling task with the "crontabs" function.

root@axcf2152:~# cat <<EOT >> /var/spool/cron/startup

@reboot sleep 20s && /usr/bin/balena-engine start mynodered >> /opt/plcnext/logs/PLCstartup.logs

EOT

root@axcf2152:~# crontab /var/spool/cron/startup

Enjoy it!