Node-RED Installation

george

Installation Based on Physical Machine

sudo apt update
curl -fsSL https://deb.nodesource.com/setup_20.x | sudo -E bash - &&\
sudo apt-get install -y nodejs
sudo apt install  npm
sudo npm install -g --unsafe-perm node-red

Based on Docker

mkdir /home/iotts/node_red
cd /home/iotts/
sudo chmod 777 node_red  
sudo docker run -d --restart always -p 1880:1880/tcp -v /home/iotts/node_red:/data --name nodered nodered/node-red

Start on Boot

Create a service

sudo nano /etc/systemd/system/node-red.service

Paste the following content in the editor:

[Unit]
Description=Node-RED
After=network.target

[Service]
ExecStart=/usr/bin/node /usr/bin/node-red
User=sa

[Install]
WantedBy=multi-user.target

Reload the systemd manager configuration to make the new service effective:

sudo systemctl daemon-reload

Start the Node RED service and set it to boot up automatically:

sudo systemctl start node-red
sudo systemctl enable node-red

Check the status of Node RED service:

sudo systemctl status node-red

Set user password

Open the settings. js file

vim /home/admin/.node-red/settings.js

To modify the content of CredentialSecret, you need to set a key, not a login password. Save and exit.
Restart Ubuntu

sudo reboot

Generate username and password, using admin as an example here

node-red admin hash-pw

admin@cp2b:~$ node-red admin hash-pw
Password: $2y$08$cUm1LgtBnDt.b.az4IiLeuPCNb0LFv.hbnd71OWwd94j.GMF/WVnW

Open the settings. js file, modify the content of adminAuth, and copy the string from earlier. Save and exit.
Restart Ubuntu