How To Install lua-nginx-websocket on Ubuntu 18.04
Introduction
In this tutorial we learn how to install lua-nginx-websocket on Ubuntu 18.04.
What is lua-nginx-websocket
lua-nginx-websocket is:
This modules provides a pure Lua websocket driver implementation for the embedded nginx’s Lua interpreter.
Because this module is based on the ngx_lua’s cosocket API, it inherits the advantage of a real nonblocking behaviour running effectively on the underlying nginx server ultra-fast technology design, allowing Web developers making use of the Lua programming language to script and construct extremely high-performance web applications capable to handle 10K+ connections.
Note that this module works for both nginx (provided by nginx-extras) and the OpenResty bundle.
There are three methods to install lua-nginx-websocket on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install lua-nginx-websocket Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install lua-nginx-websocket using apt-get by running the following command:
sudo apt-get -y install lua-nginx-websocket
Install lua-nginx-websocket Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install lua-nginx-websocket using apt by running the following command:
sudo apt -y install lua-nginx-websocket
Install lua-nginx-websocket Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install lua-nginx-websocket using aptitude by running the following command:
sudo aptitude -y install lua-nginx-websocket
How To Uninstall lua-nginx-websocket on Ubuntu 18.04
To uninstall only the lua-nginx-websocket package we can use the following command:
sudo apt-get remove lua-nginx-websocket
Uninstall lua-nginx-websocket And Its Dependencies
To uninstall lua-nginx-websocket and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove lua-nginx-websocket
Remove lua-nginx-websocket Configurations and Data
To remove lua-nginx-websocket configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge lua-nginx-websocket
Remove lua-nginx-websocket configuration, data, and all of its dependencies
We can use the following command to remove lua-nginx-websocket configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge lua-nginx-websocket
References
Summary
In this tutorial we learn how to install lua-nginx-websocket package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
