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Servers/Containers: Ansible, Kubernetes, OpenShift and Docker

Submitted by Roy Schestowitz on Wednesday 26th of December 2018 06:29:36 PM Filed under
Server
  • Maximize your Ansible skills with these 7 how-tos

    Ansible is a powerful, agentless (but easy-to-use and lightweight) automation tool that’s been steadily gaining popularity since its introduction in 2012. This popularity is due in part to its simplicity. Ansible’s most basic dependencies, Python and SSH, are available by default almost everywhere, making it easy to use Ansible for a wide range of systems: servers, workstations, Raspberry Pis, industrial controllers, Linux containers, network devices, and so on.

    Ansible is also diverse in the tasks it can perform. From core modules to manage system configuration, network management, cloud resource creation, and even Kubernetes integration, Ansible can integrate with a wide variety of systems and software. It’s easy to write custom modules for Ansible as well, extending it to perform all manner of functions in the environment.

  • Developing applications on OpenShift in an easier way

    I’m a Java developer with more than 15 years of coding experience, and while I’ve been working with OpenShift for over three years now, I never found it easy to use or compelling as a day to day development platform. Why? There are many reasons to this question, but the key ones are, complexity and speed. Before you call me a troll, allow me to explain.

    As a Java developer, one of the things that I’ve done for a long time has been to build using maven (I never got to gradle myself). Maven has provided me the ability to do almost anything I wanted with a simple command line tool. Almost anything meant that I typically had my runtimes installed and available on my local machine, and maven only had to deploy (or copy) the generated artifact into the appropriate location. Sometimes this even triggered a restart of my runtime, or just a reload if the integration with the runtime allowed for such fanciness.

    It took me a long time to get used to maven. I bet that it was the same for most of you. But once I knew (more or less) how to use it, it was pretty cool. I could share my source code, with a pom.xml file to any of my colleagues and they could build and test the application, just the same way I did.

  • DockerCon ’18 Barcelona Recap

    As you all know, I always say, “It’s okay to be new,” but sometimes it’s hard to practice what you preach. DockerCon ’18 was the first conference I have ever attended alone and being at one so far away from home was a scary experience. However, it seems it really is okay to be new in the Docker community — our first day even kicked off with Docker CEO Steve Singh’s keynote discussing that very subject. Steve is also new to the Docker community and during his keynote, he brought up the word “hygge,” which he said refers to a form of togetherness based on equality. I must say this feeling was not only encouraged, but nurtured throughout the conference.

  • sed 's/docker/containers/g'

    As one of the first container platforms available, Docker quickly racked up enormous market share. Not to knock Docker, but "alternatives are good," says Chris Collins, an automation engineer at Duke University.

    In his Lightning Talk, "sed 's/docker/containers/g'," at All Things Open 2018, October 23 in Raleigh, NC, Chris shares some of the container runtimes, engines, tools, and orchestration options you might want to consider using instead of—or alongside—Docker.

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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.

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