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Servers: Kubernetes, Docker, and Software Defined Infrastructure

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  • Kubernetes End-to-end Testing for Everyone

    More and more components that used to be part of Kubernetes are now being developed outside of Kubernetes. For example, storage drivers used to be compiled into Kubernetes binaries, then were moved into stand-alone Flexvolume binaries on the host, and now are delivered as Container Storage Interface (CSI) drivers that get deployed in pods inside the Kubernetes cluster itself.

    This poses a challenge for developers who work on such components: how can end-to-end (E2E) testing on a Kubernetes cluster be done for such external components? The E2E framework that is used for testing Kubernetes itself has all the necessary functionality. However, trying to use it outside of Kubernetes was difficult and only possible by carefully selecting the right versions of a large number of dependencies. E2E testing has become a lot simpler in Kubernetes 1.13.

  • Why Docker Containers Matter, 6 Years After the Project First Started

    Docker, the eponymous name of the container technology and the company behind it, celebrated its six-year anniversary on March 20. From its earliest days, even as just a 1-year-old effort back in 2014, there was no shortage of optimism and excitement about Docker. With the Docker model, applications are more portable and run inside of containers, which are isolated instances that provide a more agile approach for development and deployment. Docker also introduced the "dockerfile" packaging format, which defines how a container image should be built.

    The container model that Docker first introduced has evolved over the past six years and is now the cornerstone of the broader cloud-native space, which includes the open-source Kubernetes container orchestration system. In this eWEEK Data Points article, we look at some of the key facts about Docker and the cloud-native revolution it has inspired.

  • Planning for a Software Defined Infrastructure

    Seems you can’t pick up an IT magazine these days without hearing the term software defined infrastructure. It’s easy to get caught up in the hype. You might be thinking ‘people are talking about so it must be something that we need.” Some of you are wincing from the pain felt in trying to adopt the latest technologies without properly looking at what will work for your environment and business.

    In a software defined world, the computing infrastructure is virtualized. That is, it is delivered as a service. Management and control of the networking, storage and/or data center infrastructure is automated by intelligent software rather than by the hardware components of the infrastructure.

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.