Install Node-Red on Centos 7

It’s been a while since i have done anything with my nodeMCU development boards, so I’m now going to pick the back up and see what has changed.

One big change is the introduction of node-red on this page I’m going to go through the install process on Centos 7

1. 1. once you have centos installed you will need to make sure it has been updated.

   # sudo yum update -y
   

   2. install Extra Repositories

   # sudo yum install epel-release -y
   

   3. install wget

   # sudo yum install wget -y
   

   4. install Node.JS and npm

   # sudo yum install nodejs
   

   5. install Node-Red

   # sudo npm install -g node-red
   

   6. Verify the Node.js and npm Installation

   # node --version
   v6.14.3
   # npm --version
   3.10.10
   

   7. Install Service Script

sudo wget -O /etc/systemd/system/Node-Red.service https://raw.githubusercontent.com/ktndesai/Node-RED/master/Node-Red.service

for this i had to modify the script to point to the locations of node.js and node-red
the following 2 lines were changed in the file ” /etc/systemd/system/Node-Red.service”

ExecStart=/usr/bin/node $NODE_OPTIONS /lib/node_modules/node-red/red.js $NODE_RED_OPTIONS
WorkingDirectory=/root/.node-red/