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today's howtos

Submitted by Roy Schestowitz on Sunday 7th of November 2021 12:05:53 AM Filed under
HowTos
  • Building the Linux Kernel in a GitLab Runner | Adam Young’s Web Log

    Git Lab provides a mechanism to run workloads triggered by a git commit. We try to let the automation do as much work as possible before interrupting a human code reviewer. We want to know if the code is right in as objective a manner as possible before we take the expensive context switch to perform a code review.

    We can think of the set of tasks in a three step process. The first step is fast up front checks. The second is long programmatic correctness checks. The final is regression tests. There is a natural ordering between these, and they also progress in an increasing order of time and resource commitments.

    The Linux Kernel is a C program, and the long, programmatic correctness check is the compile and link processes. It is worthwhile to think in terms of the third level tests, though, and package up the result of the compilation for later install on a wide array of systems based on a binary packaging format, either RPM or .DEB. We’re testing on Fedora, so we need an rpm.

  • How to rsync files between two remotes?

    scp -3 can copy files between two remote hosts through localhost. This comes in handy when the two servers cannot communicate directly or if they are unable to authenticate one to the other.1 Unfortunately, rsync does not support such a feature. Here is a trick to emulate the behavior of scp -3 with SSH tunnels.

    When syncing with a remote host, rsync invokes ssh to spawn a remote rsync --server process. It interacts with it through its standard input and output. The idea is to recreate the same setup using SSH tunnels and socat, a versatile tool to establish bidirectional data transfers.

    The first step is to connect to the source server and ask rsync the command-line to spawn the remote rsync --server process. The -e flag overrides the command to use to get a remote shell: instead of ssh, we use echo.

  • OpenFaaS: Getting started tutorial on Kubernetes - Anto ./ Online

    OpenFaaS ( Function as a Service) is a popular serverless framework. It provides an easy way to create portable functions, microservices, and APIs using Kubernetes and Docker. This tutorial guide will serve as your OpenFaaS introduction to get you up and running quickly.

  • How to create snapshots in openSUSE with YaST2 - TechRepublic

    OpenSUSE is yet another outstanding Linux distribution that has plenty to offer. Many believe openSUSE is one of the best flavors of Linux for business desktop use cases. One of the many reasons for that is the built-in snapshot tool made possible by a combination of the btrfs file system and the YaST2 snapper plugin.

  • Linux 101: What tech pros need to know
  • How to Install and configure Jenkins on CentOS 8 / RHEL 8 - Unixcop the Unix / Linux the admins deams

    Jenkins is an open source automation server. It helps automate the parts of software development related to building, testing, and deploying, facilitating continuous integration and continuous delivery.

    Jenkins is based on Java and helps with every part of the software development process.

    Jenkins is a server-based system that runs in servlet containers such as Apache Tomcat. It supports version control tools, including AccuRev, CVS, Subversion, Git, Mercurial, Perforce, ClearCase and RTC, and can execute Apache Ant, Apache Maven and sbt based projects as well as arbitrary shell scripts and Windows batch commands.

  • How To Upgrade Ubuntu To 22.04 LTS Jammy Jellyfish

    Ubuntu 22.04 LTS Jammy Jellyfish is due to release on April 21, 2022. However, users of Ubuntu 21.10 are able to upgrade to the latest release right now.

    In this tutorial, we will cover the step by step instructions to upgrade your Ubuntu system to version 22.04 Jammy Jellyfish, which is the latest long term support release.

»

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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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