Tag: Open Source
What is Infrastructure as Code? (IaC)
Introduction: What is IaC?
![Files being shared to multiple computers](https://docs.microsoft.com/en-us/azure/devops/learn/_img/infrastructureascode_600x300-3.png)
Today we will become acquainted with a concept known as Infrastructure as Code. The idea of Infrastructure as Code is becoming more and more popular today. IaC is a method used to manage and provision a data center via defined machine-readable files instead of physical hardware configuration or other interactive configuration tools. This article will share what it is used for, why it is important, and why businesses strive to utilize this platform to achieve a desired set of results. It is essential to understand that we will consider both the theoretical and practical parts of IaC.
DevOps: A New Perspective on Shared Automation
What is DevOps?
DevOps is a set of various tools, practices, and ideals that combine software development (Dev) and IT Operations (Ops) into a single unifying force. It allows for better collaboration between developers, operations teams, system administrators, and system engineers. Their streamlined goal is to continually provide a high-value software product to the customer at high speed while monitoring and improving the overall process than using traditional software and infrastructure management.
What is a Service Mesh?
![servicemesh](https://wwwdev.lwinternal.com/wp-content/uploads/2020/11/servicemesh.111020-e1605021157680-1024x581.jpg)
What is Service Mesh?
A service mesh is an additional infrastructure layer that provides a means of communication between all services in a given application. It is typically deployed as a series of proxies alongside each service instance. Since the service mesh proxies are deployed alongside the application services and not as part of it, they are often referred to as sidecars. This means that as a whole, these sidecar proxies are a mesh network and an infrastructure layer separate from the application. A service mesh not only brokers communication between all services in an application but, since all requests, both internal and external, pass through it, it provides a means for handling many tasks that can be obfuscated away from the application.
How to Install and Configure the Kubernetes Dashboard
The web-based Kubernetes console is an interface that provides information about the state of the Kubernetes cluster. The dashboard is also used for deploying containerized applications as well as for general cluster resource management. Traditionally, kubectl is primarily used in the terminal for nearly all cluster related tasks. Still, it is useful to have a visual representation of our cluster in a user-friendly interface. To install the dashboard, kubectl needs to be installed and running on the server.
How to Install Kubernetes Using Kubeadm on Ubuntu 18
What is Kubernetes?
![k8s logo](https://wwwdev.lwinternal.com/wp-content/uploads/2020/11/31920.k8s-1024x994.png)
In this article, we review what Kubernetes and Kubeadm are, how to install, create a cluster, and set up worker nodes using Kubeadm. If you are not yet familiar with Kubernetes, we recommend reading our article on the fundamental basics of Kubernetes.
How to Install and Configure Minikube on Ubuntu
Introduction
This article will demonstrate how to install and configure Minikube to set up a small Kubernetes cluster. We will then examine Kubernetes in more detail to apply that knowledge to a real-world example.
How to Install Kubernetes on Ubuntu, macOS, and Windows
What is Kubernetes?
Kubernetes (or K8s) is an open-source container orchestration system for automating computer application deployment, scaling, and management. Kubernetes manages and runs Docker containers on numerous hosts. The project was started by Google and is supported by many companies, including Microsoft, RedHat, IBM.
How to Install and Configure K3s on Ubuntu 18.04
What is K3s?
![k3s Logo](https://wwwdev.lwinternal.com/wp-content/uploads/2020/09/k3s.093020.png)
K3s is a lightweight version of Kubernetes. It is a highly available Kubernetes certified distribution designed for production workloads in unattended, limited resource, remote locations, or inside an IoT appliance. The developers of K3s declare that K3s is capable of almost everything that K8s can do.
What is Puppet and What Role Does it Play in DevOps?
What is Puppet?
![puppet-labs-logo](https://wwwdev.lwinternal.com/wp-content/uploads/2020/03/puppet-labs-logo.2.26.20.png)
Puppet is a cross-platform client-server based application used for configuration management. It handles the software and its configurations on multiple servers. There are two versions available. One is open-source, the other is a commercial version. It works on both Linux and Windows platforms. It uses a declarative approach to automate updates, installations, and other tasks. This feature allows the software to configure those systems using files called manifests. A manifest contains the instructions for a group or type of server(s) being controlled.
How to Install OpenJDK 11 on CentOS 8
What is OpenJDK?
![openjdk logo](https://wwwdev.lwinternal.com/wp-content/uploads/2020/08/openjdklogo.082620.png)
OpenJDk or Open Java Development Kit is a free, open-source framework of the Java Platform, Standard Edition (or Java SE). It contains the virtual machine, the Java Class Library, and the Java compiler. The difference between the Oracle OpenJDK and Oracle JDK is that OpenJDK is a source code reference point for the open-source model. Simultaneously, the Oracle JDK is a continuation or advanced model of the OpenJDK, which is not open source and requires a license to use.
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