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Links 04/01/2023: staticsite 2 and Kubernetes Stuff



  • GNU/Linux

    • 5 ways to stand out in the open-source and Linux job market - Linux Careers

      Are you looking to make a move in the open-source and Linux job market? The demand is high, but there are still plenty of highly-skilled professionals vying for the same positions. It's important to take steps to stand out from the crowd and make yourself attractive to potential employers. In this article, we will explore five ways to stand out in the open-source and Linux job market. We'll discuss the importance of staying up to date on industry trends, the benefits of certifications and training programs, how to network and make connections, and how to leverage personal projects. By the end of this article, you should have a better understanding of how to make yourself an attractive candidate in the open-source and Linux job market.

      [...]

      Creating a portfolio of open-source projects is a great way to demonstrate your knowledge and skills. To get started, look for projects that match your interests and skill level. It’s also important to choose projects that you can demonstrate easily and effectively. Once you’ve picked a project, develop a plan for contributing to it, making sure to keep track of your progress and document your work. Finally, make sure to showcase your portfolio of projects in a professional way. Doing so will help you stand out in the Linux and open-source job market.

    • Kubernetes

      • EarthlyA Developer’s Guide to Kubernetes Services

        Kubernetes is a tool for managing containerized applications, designed to make it easy to deploy and scale applications. It is designed to work with a variety of container technologies like Docker and containerd. In a Kubernetes cluster, your application runs in a Pod. In Kubernetes, Pods are ephemeral; they are temporary resources which are created and destroyed as needed .

        When pods need to interact with other resources in a Kubernetes cluster, they can use the IP addresses provided by the cluster. However, this approach has the drawback of requiring developers to manually configure the IP addresses for each pod. Because Pods are temporary resources in a cluster, it is practically impossible to configure IP tables whenever a new Pod is created or destroyed. As a result, it is challenging for Pods to communicate with one another using IP addresses.

        To solve this problem, Kubernetes has a resource called Service, which gives the Pod a stable IP address to solve this communication issue—making interaction with other Pods considerably more reliable. Services provide a way to expose applications running on a Kubernetes cluster to the outside world. They also allow for load balancing and for routing traffic to the correct application instance. Services can be exposed using a variety of methods, such as a load balancer or an Ingress resource.

        In this guide, you’ll learn about Services and its types in Kubernetes, and how to define them using YAML files. By the end of the article, you’ll have a good understanding of Services in Kubernetes.

      • EarthlyKubernetes GitOps with FluxCD - Earthly Blog

        Kubernetes has become the go-to tool for application deployment. However, it does not offer features for continuous integration and delivery. Continuous delivery can be particularly helpful for larger teams that host and update deployments frequently. One approach to maintaining continuous delivery for Kubernetes is GitOps.

        GitOps is a software development practice that relies on a Git repository as its single source of truth. Descriptive configurations are committed to Git and then used to create continuous delivery environments. All aspects of the environment are defined via the Git repository; there are no standalone scripts or manual setups.

        In this guide, you’ll learn how to configure a continuous delivery pipeline with Flux for your Kubernetes cluster. You’ll set up this pipeline imperatively by deploying the Flux Prometheus and Grafana monitoring stacks, and declaratively by deploying a ‘2048 game application’ to your Kubernetes cluster.

      • Red HatHow to use Fabric8 Java Client with Kubernetes | Red Hat Developer

        The last few years have seen a rise in containers-based development, with more programmers coming to understand the benefits of using containers rather than traditional VMs or just bare metal. Kubernetes arose to help scale containers for enterprise use cases and has established itself as the most popular container orchestrating platform. From the beginning of the Kubernetes project, the community of users and contributors has grown fast. As of this publication, it is one of the most popular projects on Github.

        I recently read the book Programming Kubernetes, which gives an overview of programming Kubernetes with Golang. As a contributor to the Fabric8 Kubernetes Client, I was inspired to write a blog series that covers similar topics from a Java developer's perspective.

      • Red HatProgramming Kubernetes custom resources in Java | Red Hat Developer

        Kubernetes 1.16 introduced the concept of custom resources (CRs), allowing users to define their own Kubernetes objects that can be used in their applications. Users are now able to define these Kubernetes object structures tailored to their needs and use them like native Kubernetes resources. This makes Kubernetes much more extensible. These custom resources can be used by Kubernetes Operators to manage applications and their components.

      • Enterprisers ProjectKubernetes in 2023: 7 predictions for IT leaders | The Enterprisers Project

        Kubernetes is less than a decade old as an open source project, but it’s already grown up in tech years.

        “Kubernetes as a base platform is quite mature,” says Gordon Haff, technology evangelist at Red Hat. “That’s not to say that change isn’t a constant in and around the platform.”

        Indeed, while Kubernetes might seem like old news, the orchestration platform – and the IT pros and teams who use it – still has plenty of new tricks in store.

    • Audiocasts/Shows

    • Applications

      • 9to5LinuxPinta 2.1 Open-Source Paint Program Adds WebP Support, Wayland Improvements

        Pinta 2.1 open-source image editor and drawing software is now available for download. This release is a major update that adds WebP support, Gradient tool improvements, and many other exciting changes.

      • Data Science TutorialsTop Data Science Applications You Should Know 2023

        Top Data Science Applications You Should Know 2023, Investigate Data Science, the world's most popular field today.

      • It's UbuntuBest Microsoft Teams Alternatives For Linux In 2023 | Itsubuntu.com

        Microsoft Teams is one of the best collaboration tools available in the market. It is developed by Microsoft. It is used for team messaging, video conferencing, meetings, and collaboration.

        Meanwhile, if you are a Linux user and want to use Microsoft Teams in your Linux environment then we have some good news for you as we have collected the list of best Microsoft Teams alternatives for Linux in 2023.

    • Instructionals/Technical

      • nixCraftHow to install git command on Alpine Linux

        Git is a distributed version control system. To install git, type apk addgit command on Alpine Linux.Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - RedditThe post How to install git command on Alpine Linux appeared first on nixCraft.

      • OpenSource.comCustomize Apache ShardingSphere high availability with MySQL | Opensource.com

        Users have many options to customize and extend ShardingSphere's high availability (HA) solutions. Our team has completed two HA plans: A MySQL high availability solution based on MGR and an openGauss database high availability solution contributed by some community committers. The principles of the two solutions are the same.

        [...]

        So far, Apache ShardingSphere's HA feature has proven applicable for MySQL and openGauss HA solutions. Moving forward, it will integrate more MySQL HA products and support more database HA solutions.

        As always, if you're interested, you're more than welcome to join us and contribute to the Apache ShardingSphere project.

      • ID RootHow To Install Wike Wikipedia Reader on Fedora 37 - idroot

        In this tutorial, we will show you how to install Wike Wikipedia Reader on Fedora 37. For those of you who didn’t know, Wike is a Wikipedia reader for the Gnome Desktop. It offers a variety of features to make reading and finding information easier, such as search functionality, bookmarking, and customization options.

        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 Wike Wikipedia Reader on a Fedora 37.

      • Red Hat OfficialGather Linux system info with CPU-X | Enable Sysadmin

        Get a comprehensive view of your CPU, motherboard, RAM, and GPU information in a graphical or text interface.

      • Beginners Guide for Time Command in Linux

        The time command is used to determine the amount of time taken by the referenced command or shell script to execute in your system, from start to finish.

        It returns the result in three categories: real time, user time, and system time (we will discuss them later), which can be very useful, especially if you are a sysadmin.

        As a sysadmin, you must be aware of the time taken by your server to execute the referenced script. A single script doesn’t affect much, but running multiple complex scripts on your server will result in resource waste.

        In this article, you will learn how to use the time command to determine the execution time of a command or shell script taken by your system/server in Linux.

      • TecAdminDocker exec: Running Commands in a Docker Container - TecAdmin

        Docker is a popular containerization platform that allows you to package, deploy, and run applications in a container. The `docker exec` command allows you to run commands in a running Docker container. This can be useful for debugging, testing, and administering containers. In this article, we will go over how to use the docker exec command to run commands inside a running Docker container.

      • Linux HintHow to Install LastPass on Ubuntu 22.04 [Ed: "With a password manager like LastPass," it says, "you no longer have to worry about forgetting passwords." You just need to worry about LastPass repeatedly lying about all your vaults/passwords getting cracked/exposed.]

        Everything is now accessible online and when accessing most services, you must create an account depending on the platform. While creating an account is easy and quick, the hassle comes in remembering all the different and robust combinations of passwords used to create the account.

        To be safe, you should not use the same password for your accounts. Therefore, having a way to manage all your passwords for quick autofill and security is essential. With a password manager like LastPass, you no longer have to worry about forgetting passwords. This guide details everything about using LastPass on Ubuntu 22.04.

      • FOSSLinuxBash split command explained with examples | FOSS Linux

        Manipulating files filled with data is one of the absolute basics of programming. Files need to be split down, reduced, or otherwise modified to be used by a script with particular requirements. Bash, having been around as long as it has, is armed with a lot of tools for such purposes. One of those is the split command, which allows a specific file to be divided according to the instructions put up using the configuration options provided by the user. Today we will see how to use the split command to best suit our varying needs.

      • Linux Shell TipsHow to Update Installed Flatpak Packages in Linux

        The first rule of a progressive Linux user is to ensure that the Linux operating system you are using is up-to-date. The Linux system update and upgrade rules on different Linux distributions depend on the default package manager in question.

        For instance, Ubuntu will rely on the APT package manager while a Linux distribution like RHEL will depend on either YUM or DNF package managers.

        However, we should not be too quick to dismiss alternate software packaging formats like Snap and Flatpak. Applications under Snap are automatically updated by the Linux system in question. On the other hand, applications under Flatpak do not benefit from the automatic update privilege.

        Brief: This article guide breaks down and demonstrates the different package update steps covered under Flatpak software deployment and package management system on a Linux operating system.

      • Trend OceansLearn how to Customise the Linux terminal to make it look awe! - TREND OCEANS

        Take control of your Linux terminal and truly customise it! Follow this guide to learn how you can customise the look and feel of your Linux terminal to make it stand out from the crowd.

    • Desktop Environments/WMs

      • K Desktop Environment/KDE SC/Qt

  • Distributions and Operating Systems

  • Free, Libre, and Open Source Software

    • Medevel8 Open source SIP Servers

      OpenSIPS is a free open source SIP proxy/ server that supports voice, video, IM, presence, and other SIP extensions.

      OpenSIPS team offers a LTS support for latest stable release, and it is available for Linux servers (Ubuntu, Debian, Fedora, openSUSE, RedHat, and CentOS).

      [...]

      Hermes is a modern SIP server framework for building real-time SIP apps. Hermes will substitute old legacy SipServlet. It is based on reactive manifesto.

      Hermes is meant for Java developers, and it is a FLOSS (Free Libre Open Source Software) under the GNU Lesser General Public License.

    • Web Browsers/Web Servers

      • Mozilla

        • Hubert FiguièreIntroducing Toot That! - Hubert Figuière

          Introducing Toot That!.

          It's a small WebExtension (browser add-on) for Firefox.

          It's the successor of Tweet That! but for use with Mastodon (the Fediverse).

          It allows posting a link to the current tab to your chosen Mastodon instance. Only the server knows this is happening. The extension doesn't send anything else.

          Install it as a Firefox Add-ons.

    • Content Management Systems (CMS)

      • Released staticsite 2.x

        In theory I wanted to announce the release of staticsite 2.0, but then I found bugs that prevented me from writing this post, so I'm also releasing 2.1 2.2 :grin:

        staticsite is the static site generator that I ended up writing after giving other generators a try.

        I did a big round of cleanup of the code, which among other things allowed me to implement incremental builds.

    • Programming/Development

      • OpenSource.comLearn to code with my retro computer program | Opensource.com

        I teach university courses part-time, including a class about general computing topics, open to all majors. This is an introductory course that teaches students about how technology works, to remove the mystery around computing.

        While not a computer science course, one section of this course covers computer programming. I usually talk about programming in very abstract terms, so I don't lose my audience. But this year, I wanted my students to do some "hands-on" programming in an "old school" way. At the same time, I wanted to keep it simple, so everyone could follow along.

        I like to structure my lessons to show how you got from "there" to "here." Ideally, I would let my students learn how to write a simple program. Then I would pick it up from there to show how modern programming allows developers to create more complex programs. I decided to try an unconventional approach — teach the students about the ultimate in low-level programming: machine language.

      • Boost 1.81 is available in in Debian Testing amd requires testing

        The latest version of Boost, version 1.81, is now available in Debian Testing.

        As contributors to Boost, we highly encourage you to consider building your package against Boost 1.81 in order to facilitate a smooth transition.

      • Python

        • Having some fun with Stable Diffusion Inpainting in Python on New Year’s Day | 0-fold Cross-Validation

          It is New Year’s Day 2023 :sweat_smile:. Happy New Year!!! :fireworks: I am currently driving with my family coast-to-coast on a road trip through the United States, but for New Year’s Eve and New Year’s Day we stayed in one place. Taking advantage of the driving free days, I and my 4-year old son had some great fun with the open-source stable diffusion models; in particular, the Text-Guided Image Inpainting techniques.

      • Rust

        • Junichi Uekawa: debcargo rust repository and some observations.

          debcargo rust repository and some observations. It's been about a week since I first started looking at Debian rust packages and adding some packages in preparation for crosvm. Some things that don't work quite well right now yet. My local branches disappeared. I don't have access and everything is through a merge request, presumably that is not a generally supported workflow and the team members are using branches to manage pending works. ./release.sh is optimized for updates and for new packages, they only build source packages and then I need to rebuild a binary-full package for the NEW queue. Maybe I will figure out. I haven't quite gotten the right IRC client. I was using the web UI but that seemed to disconnect without any warnings, and didn't tell me even when it is disconnected, it just can't post more messages and doesn't receive messages. That's not very useful. I started using Emacs IRC (rcirc) client. Not sure how useful that is.

  • Leftovers

    • DJ AdamsI'm moving onto a narrowboat

      I made the explicit decision some time last year, but I think the decision itself was the culmination of a long time desire to live more simply, combined with the realisation that I'm not getting any younger. I have been intrigued by the tiny house movement in the past, but at the same time the lure of the canal network in the UK has been floating around my periphery for a good while.

    • Anders BorchI may get defederated, and that’s ok

      Even with that, I am still at risk of being banned and/or blocked, or de-federated.

      [...]

      Even so, my secondary account on mastodon.sdf.org got deleted with no warning. It was mostly a passive account with one or two posts. Nothing even remotely controversial. Maybe SDF simply doesn't allow secondary accounts. I'll probably never know why it got deleted.

      Recently, there have been a couple of cases where instances got de-federated for not acting harshly enough against bad actors (nazis, harassers, or other generally unpleasant people).

      Someone else mentioned that Mastodon is a feudal media where local moderators rule. This is a good thing. Actual humans reading posts and reacting will always be better than algorithmic moderation.

  • Gemini* and Gopher

    • Technical

      • Log Analysis Pitfalls

        Log analysis is not without pitfalls. For example, fail2ban has suffered from a number of issues ranging from annoyances to security flaws. Since there has been recent uh geminews? about pulling strings out of logfiles, and at least one of the fail2ban security flaws involved using bad regular expressions to do that, now might be a good time to review various issues with the practice.

      • Programming

        • Gemlog responses - 1st update (after response from Sean Conner)

          As I wrote in the initial post, I am not an expert in programming and have a non-IT engineering background. Nevertheless I have some coding experience (I do some Python coding every now and then), so I understand the argument, that log-parsing is in the more complex than a CGI script. I also have to say that I wrote this post from my perspective, self-hosting my gemini capsule on a virtual Rootserver, which gives me access to all Logs. I see the point, that not every user has access to this.

        • Thumby Coding

          I got my hands on a Thumby handheld around summer last year and have been enjoying it since.

          If you haven't heard of it, the Thumby is a tiny Gameboy-looking handheld the size of a keychain. No matter how many photos of it you see online, you'll still catch yourself saying "Dang, that's small!" once you see it in person. But here's a photo anyway.

        • The Bargain Bin B-Tree

          I've been working lately on a bit of an overhaul of how the search engine does indexing. How it indexes its indices. "Index" is a bit of an overloaded term here, and it's not the first that will crop up.

          Let's start from the beginning and build up and examine the problem of searching for a number in a list of numbers. You have a long list of numbers, let's sort them because why not.


* Gemini (Primer) links can be opened using Gemini software. It's like the World Wide Web but a lot lighter.



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