open source

How To Manage Your Kubernetes Configurations with Kustomize — step-by-step Docker tutorial on Progressive Robot

How To Manage Your Kubernetes Configurations with Kustomize

In this guide, you will build a small web application and then use Kustomize to manage your configuration sprawl. You will deploy your app to development and production environments with different configurations. You will also layer these variable configurations using Kustomize’s bases and overlays so that your code is easier to read and thus easier to maintain.

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How To Set Up a Help Desk System with OTRS on Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

How To Set Up a Help Desk System with OTRS on Ubuntu 18.04

OTRS, also known as the Open source Ticket Request System, is a help desk and IT service management system. In this tutorial, you will install OTRS Community Edition on an Ubuntu 18.04 server and set up a simple help desk system, which will allow you to receive and process requests from your customers using both the web interface and email.

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How To Configure a Galera Cluster with MySQL on Ubuntu 18.04 Servers — step-by-step Linux tutorial on Progressive Robot

How To Configure a Galera Cluster with MySQL on Ubuntu 18.04 Servers

In this guide, you will configure an active-active MySQL Galera cluster with three Ubuntu 18.04 servers. Clustering adds high availability to your MySQL database by distributing changes to different servers. In the event that one of the instances fails, others are quickly available to continue serving. Galera is a database clustering solution that enables you to set up multi-master clusters using synchronous replication.

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