{"id":7709,"date":"2024-07-22T16:09:17","date_gmt":"2024-07-22T23:09:17","guid":{"rendered":"https:\/\/ioflood.com\/blog\/?p=7709"},"modified":"2024-07-22T16:09:17","modified_gmt":"2024-07-22T23:09:17","slug":"install-node-red-linux","status":"publish","type":"post","link":"https:\/\/ioflood.com\/blog\/install-node-red-linux\/","title":{"rendered":"How to Install Node RED Linux for Visual Programming"},"content":{"rendered":"
\n
\"Technician<\/figure>\n<\/div>\n

As we look to improve development of our javascript apps at IOFLOOD<\/a> the Node-RED programming tool came to our attention. As we learned what is Node-RED, it became clear that this tool is ideal for easy integration of IoT devices and service. Today’s article was crafted to help our clients deploy a robust tool for developing and managing their IoT solutions on Dedicated bare metal servers<\/a>.<\/p>\n

In this guide, we will navigate the processes to install Node RED Linux for your dedicated server.<\/strong> We will provide you with installation instructions for APT-based distributions like Debian and Ubuntu, as well as YUM-based distributions like CentOS and AlmaLinux. We’ll also delve into more advanced topics like compiling Node-RED from source, installing a specific version, and finally, how to use Node-RED and verify that the correct version is installed.<\/p>\n

So, let’s dive in and start installing Node-RED on your Linux system!<\/p>\n

TL;DR: How Do I Install Node RED Linux?<\/h2>\n

\n The simplest way to install Node-RED on Linux is by installing Node.JS and NPM with, sudo apt update<\/code>, sudo apt install nodejs && sudo apt install npm<\/code>, then install Node-RED via NPM, sudo npm install -g --unsafe-perm node-red<\/code>. Alternatively, you can also use the following Linux installers:\n<\/p><\/blockquote>\n

#For Debian\/Ubuntu\nbash <(curl -sL https:\/\/raw.githubusercontent.com\/node-red\/linux-installers\/master\/deb\/update-nodejs-and-nodered)\nsudo apt install build-essential\n\n# For Red Hat\/Centos\nbash <(curl -sL https:\/\/raw.githubusercontent.com\/node-red\/linux-installers\/master\/rpm\/update-nodejs-and-nodered)\n<\/code><\/pre>\n
This command will download a script from the official Node-RED repository and execute it. This script will update Node.js to the latest stable version and install Node-RED.<\/p>\n
But this is just the beginning. Node-RED installation on Linux offers much more flexibility and options. Continue reading for a more detailed guide, advanced installation methods, and troubleshooting tips.<\/p>\n
Get Started: Node Red Tutorial<\/h2>\n
Node-RED is a flow-based programming tool for wiring together hardware devices, APIs, and online services. It provides a browser-based editor that makes it easy to wire together flows using the wide range of nodes in the palette. Flows can be then deployed to the runtime in a single click. Whether you’re a hobbyist or a professional developer, Node-RED offers a range of features that can enhance your application development process.<\/p>\n
Install Node RED Linux with APT<\/h3>\n
For distributions like Debian or Ubuntu, you can install NodeJS and NPM using the APT package manager. Here’s how:<\/p>\n
sudo apt-get install nodejs npm\nsudo npm install -g --unsafe-perm node-red\n\n# Output:\n# [Expected output from command]\n<\/code><\/pre>\n
This command will first update your package lists and then install Node-RED.<\/p>\n
Install Node RED Linux with YUM<\/h3>\n
For YUM-based distributions like CentOS or AlmaLinux, you can install Nodejs and NPM using the YUM package manager. Here’s the command you need to run:<\/p>\n
sudo yu,install nodejs npm\nsudo npm install -g --unsafe-perm node-red\n# Output:\n# [Expected output from command]\n<\/code><\/pre>\n
This command will first update your system, and then install Node-RED.<\/p>\n
Remember, these are just the basic installation methods. There are more advanced methods available, which we will discuss later in this guide.<\/p>\n
Install Node RED Linux from Source<\/h2>\n
For more control over the installation process, you can install Node-RED from source. This method requires more steps and familiarity with the command line, but it gives you the flexibility to install specific versions of Node-RED.<\/p>\n
# Install Node.js and Git for your specific Linux Version)\n# Then install grunt-cli interface\nsudo npm install -g grunt-cli\n\n# Clone the Node-RED repository\ngit clone https:\/\/github.com\/node-red\/node-red.git\ncd node-red\ngit checkout master\n\n# Install the Node-RED dependencies\nnpm install\n\n# Build the code\ngrunt build\n\n# Start Node Red\nnpm start\n\n<\/code><\/pre>\n
Install Specific Versions of Node-RED<\/h2>\n
Different versions of Node-RED may offer specific features or compatibility with certain systems. You can install a specific version from source or using package managers.<\/p>\n
From Source<\/h3>\n
To install a specific version from source, you need to check out the corresponding Git tag before building the code. For example, to install Node-RED version 1.2.9:<\/p>\n
git checkout 1.2.9\nnpm install\ngrunt build\nnpm start\n<\/code><\/pre>\n
Version Comparison<\/h3>\n\n\n\n\n\n\n\n
Version<\/th>\nKey Features<\/th>\nCompatibility<\/th>\n<\/tr>\n<\/thead>\n
1.0.0<\/td>\nInitial stable release<\/td>\nAll supported platforms<\/td>\n<\/tr>\n
1.2.9<\/td>\nImproved editor features<\/td>\nAll supported platforms<\/td>\n<\/tr>\n
2.0.0<\/td>\nIntroduction of flow debugger<\/td>\nNode.js 10.x and later<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Basic Node RED Use and Verification<\/h2>\n
After installing Node-RED, you can start it by running the node-red<\/code> command. You should see output indicating that Node-RED is starting:<\/p>\n
node-red\n\n# Output:\n# Welcome to Node-RED\n# ...\n# [Expected output from command]\n<\/code><\/pre>\n
To verify that Node-RED is installed correctly, you can check the version:<\/p>\n
node-red --version\n\n# Output:\n# Node-RED version: v1.2.9\n# ...\n# [Expected output from command]\n<\/code><\/pre>\n
This command should display the installed version of Node-RED.<\/p>\n
Alternate Node RED Install Methods<\/h2>\n
While we have covered the standard and advanced methods of installing Node-RED on Linux, there are alternative approaches that cater to specific needs or environments. Let’s explore these methods and understand their benefits, potential drawbacks, and use-cases.<\/p>\n
Install Node-RED Linux with Docker<\/h3>\n
Docker provides a way to run applications securely isolated in a container, packaged with all its dependencies and libraries. To install Node-RED using Docker, you can pull the official Node-RED Docker image. Here’s how:<\/p>\n
# Pull the Node-RED Docker image\ndocker pull nodered\/node-red\n\n# Run Node-RED in a Docker container\ndocker run -it -p 1880:1880 --name mynodered nodered\/node-red\n<\/code><\/pre>\n
This approach isolates Node-RED from your system, reducing potential conflicts with other software. However, it requires Docker to be installed and may consume more resources than a native installation.<\/p>\n
Install Node-RED Linux with Snap<\/h3>\n
Snap is a software packaging and deployment system developed by Canonical for operating systems that use the Linux kernel. To install Node-RED with Snap, use the following command:<\/p>\n
# Install Node-RED with Snap\nsudo snap install node-red\n<\/code><\/pre>\n
Snap packages are self-contained and include all dependencies needed to run the application. This makes them easier to install and update, but they may consume more disk space than native packages.<\/p>\n
Install Node-RED Linux with NPM<\/h3>\n
NPM is the default package manager for Node.js. If you have Node.js installed, you can use NPM to install Node-RED. Here’s the command:<\/p>\n
# Install Node-RED with NPM\nsudo npm install -g --unsafe-perm node-red\n<\/code><\/pre>\n
This approach allows you to install Node-RED globally with NPM. However, it may require additional steps to set up Node.js and NPM.<\/p>\n
Installation Method Comparison<\/h3>\n\n\n\n\n\n\n\n
Method<\/th>\nAdvantages<\/th>\nDisadvantages<\/th>\n<\/tr>\n<\/thead>\n
Docker<\/td>\nIsolation, Portability<\/td>\nRequires Docker, More resources<\/td>\n<\/tr>\n
Snap<\/td>\nEasy to install and update<\/td>\nMore disk space<\/td>\n<\/tr>\n
NPM<\/td>\nUses existing Node.js setup<\/td>\nRequires Node.js and NPM setup<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Each of these methods has its own advantages and considerations. You should choose the one that best suits your needs and environment.<\/p>\n
Troubleshooting Node-RED Install<\/h2>\n
While installing Node-RED on Linux can be a straightforward process, you may encounter some issues. Let’s discuss some common challenges and their solutions to ensure a smooth installation experience.<\/p>\n
Issue: Permission Denied<\/h3>\n
Sometimes, you might encounter a ‘Permission Denied’ error while installing Node-RED. This usually happens due to lack of administrative privileges. To resolve this, you can use the sudo<\/code> command:<\/p>\n
sudo npm install -g --unsafe-perm node-red\n\n# Output:\n# [Expected output from command]\n<\/code><\/pre>\n
This command runs the installation with root privileges, bypassing the permission issues.<\/p>\n
Issue: Outdated Node.js Version<\/h3>\n
Node-RED requires a specific version of Node.js. If your Node.js version is outdated, you might face compatibility issues. You can update Node.js using the Node Version Manager (NVM):<\/p>\n
nvm install stable\nnvm use stable\n\n# Output:\n# [Expected output from command]\n<\/code><\/pre>\n
This command installs and uses the latest stable version of Node.js.<\/p>\n
Issue: Port Already in Use<\/h3>\n
Node-RED runs on a specific port (default is 1880). If this port is already in use, Node-RED cannot start. To solve this, you can change the port in the Node-RED settings file or stop the application using the port.<\/p>\n
# Change the port in settings.js\n\nsed -i 's\/1880\/1881\/g' ~\/.node-red\/settings.js\n\n# Output:\n# [Expected output from command]\n<\/code><\/pre>\n
This command changes the default port from 1880 to 1881 in the settings file.<\/p>\n
Issue: Unable to Access Node-RED UI<\/h3>\n
If you can’t access the Node-RED user interface after installation, it might be due to firewall settings. You can allow access to the Node-RED port using the ufw<\/code> firewall:<\/p>\n
sudo ufw allow 1880\n\n# Output:\n# [Expected output from command]\n<\/code><\/pre>\n
This command allows incoming connections to port 1880, enabling access to the Node-RED UI.<\/p>\n
Remember, troubleshooting is a vital part of any installation process. Understanding potential issues and their solutions can save you valuable time and effort.<\/p>\n
So, What is Node-Red?<\/h2>\n
Node-RED is a programming tool for connecting hardware devices, APIs, and online services in new and interesting ways. It provides a browser-based editor that makes it easy to wire together flows using the wide range of nodes in the palette that can be deployed to its runtime in a single click.<\/p>\n
Node-RED: A Powerful Tool for Developers<\/h3>\n
Node-RED is built on Node.js, taking full advantage of its event-driven, non-blocking model. This makes it ideal to run at the edge of the network on low-cost hardware such as the Raspberry Pi as well as in the cloud.<\/p>\n
# Start Node-RED\n\nnode-red start\n\n# Output:\n# Welcome to Node-RED\n# ===================\n\n# [Expected output from command]\n<\/code><\/pre>\n
Running the node-red start<\/code> command starts the Node-RED process. You should see a welcome message indicating that Node-RED has started successfully.<\/p>\n
The Benefits of Using Node-RED<\/h3>\n
With Node-RED, you can create complex logic by simply wiring together nodes in a ‘flow’. These flows are stored using JSON, which can be easily imported and exported for sharing with others. This visual approach to programming is perfect for novices and experts alike.<\/p>\n
Node-RED can be run on a Raspberry Pi and other low-cost hardware. It can also be run in the cloud, making it a versatile tool for IoT projects and real-time data collection and analysis.<\/p>\n
Key Features of Node-RED<\/h3>\n
Node-RED offers a wide array of features that make it a powerful tool for developers:<\/p>\n