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IBM/Red Hat/Fedora Leftovers

Submitted by Roy Schestowitz on Friday 25th of June 2021 03:33:44 PM Filed under
Red Hat
  • Josef Strzibny: InvoicePrinter 2.2 with breakdowns of items

    A while ago, I released a new version of InvoicePrinter, my little library for generating PDF invoices. Here’s what’s new.

    InvoicePrinter 2.2.0 brings a new free-form breakdown field, which can break down individual items in the table.

  • Making Java programs cloud-ready, Part 1: An incremental approach using Jakarta EE and MicroProfile | Red Hat Developer

    Modern enterprises are moving applications into the cloud, often using a microservices architecture. This presents a challenge for legacy applications that were designed for standalone, on-premises servers. These applications must be able to interact with other services that are tailored to the cloud along the lines of the twelve-factor app rules. Your applications should offer tracing, monitoring, and metrics to ensure availability and good performance. If you move Java applications to the cloud, you are likely to find their size and memory footprint burdensome, because instances have to be uploaded quickly and run on lean systems.

    Luckily, several tools exist to ease the transition of enterprise Java applications to the cloud. This four-part series takes you through the steps to make a Java application cloud-ready. All the tools are free and open source, and we'll run them on Red Hat JBoss Enterprise Application Platform (JBoss EAP) and Red Hat OpenShift Container Platform. Very little Java code needs to be added to the application; we will accomplish nearly everything through tooling and configuration files.

  • Use source-level annotations to help GCC detect buffer overflows | Red Hat Developer

    Out-of-bounds memory accesses such as buffer overflow bugs remain among the most dangerous software weaknesses in 2021 (see 2020 CWE Top 25 Most Dangerous Software Weaknesses). In fact, out-of-bounds write (CWE-787) jumped from the twelfth position in 2019 to second in 2020, while out-of-bounds read (CWE-125) moved from the fifth to the fourth position.

    Recognizing the importance of detecting coding bugs early in the development cycle, recent GNU Compiler Collection (GCC) releases have significantly improved the compiler's ability to diagnose these dangerous bugs by using warnings such as -Warray-bounds, -Wformat-overflow, -Wstringop-overflow, and (most recently in GCC 11) -Wstringop-overread. However, a common limitation shared by all these warnings is that they can only analyze code in a single function at a time. With the exception of calls to a small set of intrinsic functions like memcpy() built into the compiler, the warnings stop at the function call boundary. That means that when a buffer allocated in one function overflows in a function called from it, the problem is not detected unless the called function is inlined into the caller.

  • Copr repo with the latest GNOME Software | Brno hat

    We’ve been working hard for the last months to improve GNOME Software both in Fedora Workstation and Silverblue, especially its reliability. One thing we identified as a problem is a long feedback loop. I took months before bug reporters and designers could easily test changes made based on their feedback.

    That’s why Milan Crha, the new GNOME Software maintainer, created a Copr repository that includes the latest development version of GNOME Software. If you want to help us with testing, install GNOME Software from the Copr repository and report issues. They won’t be overlooked. Milan is a very responsive maintainer.

  • 5 ways to improve enterprise data privacy | The Enterprisers Project

    For most companies, enabling employees to work from home has become a necessity. With some studies showing that 70 percent of the workforce will be remote by 2025, advanced technologies such as cloud networks are critical. And while the pandemic has shown us how resilient our technology can be, we must also consider ways to safeguard it.

    Data has the potential to be weaponized as criminals use it to target the personal and financial health of individuals and organizations alike. With data privacy increasingly being called the “new corporate social responsibility” and data the “new oil,” organizations must treat personal data with the utmost care.

»

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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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