How to Install SaltStack on Ubuntu 18

Reading Time: 6 minutes

What is SaltStack?

SaltStack is an open-source infrastructure management platform built on a dynamic communications bus. The main structure of SaltStack contains two main components for work: one Salt Master and several Salt Minions. Salt Master is the main control system used to send commands to Salt Minion and their configuration. Salt Minions (they are also called Nodes) are subsystems that work on managed servers and receive commands from the master, as well as their configuration. At least two servers are required for interaction settings. One for the Master and one for the node. All nodes are configured in the same way.

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How to Install Docker on CentOS 8

Reading Time: 6 minutes

What is Docker?

Before we begin, let’s describe what Docker is. Docker is a set of virtualization tools that allows us to create, test, and deploy containerized applications quickly and easily on a dedicated server. It has become very popular and used almost everywhere in our daily lives. Thanks to containerization, we can quickly launch applications on different cloud platforms utilizing small bundles which contain all the needed packages, libraries and configuration file to run an application. These docker packages communicate via established network channels.

Docker Silhouette
Docker Silhouette
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How to install Envoy Proxy on Ubuntu 18

Reading Time: 5 minutes

Today we will demonstrate how to install Envoy Proxy on Ubuntu. 

Envoy is a high performance C++ distributed proxy designed for single services and applications, as well as a communication bus and “universal data plane” designed for large microservice “service mesh” architectures. Built on the learnings of solutions such as NGINX, HAProxy, hardware load balancers, and cloud load balancers, Envoy runs alongside every application and abstracts the network by providing common features in a platform-agnostic manner.

envoyproxy.io/

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How To Install and Configure Wraith

Reading Time: 10 minutes

What is Wraith?

Wraith is a visual regression testing tool which uses screenshot comparisons to assess visual differences in a website over time. It is currently hosted on GitHub and available under an Apache 2.0 open-source license.

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How to Install Ruby on Rails on CentOS 8

Reading Time: 8 minutes

Today we’re going to install Ruby on Rails using RVM (the Ruby Version Manager) onto a CentOS 8 server. Let’s start by defining a few terms and definitions we will be using during the process.

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How to Install Tomcat 9 on CentOS 8

Reading Time: 8 minutes

What is Tomcat?

In this article, we will be demonstrating how to install Apache Tomcat on CentOS 8. Before we begin, let’s define exactly what Apache Tomcat is. Apache defines Tomcat as: “An open-source, servlet container, JavaServer Pages, Java Expression Language, and WebSocket technology that also acts as a web server. It affords a “pure Java” based HTTP server environment in which Java can be executed.” Tomcat works with the Java programming language and is associated with web applications written in Java.

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