Christopher Janietz

Dear software developers, Small recap about #ELF (it has nothing to do with german national soccer team) ELF as unix-like system specific executable contains additional, metadata information that can be used to inspect the by the compiler generated file. These information are stored into different kind of sections: - Header: describes the executable in terms of the type of the executable, architecture, and other attributes - Program headers: these describe the runtime properties of each segment, like code, data, stack, etc. - Section headers: these describe each section within the binary, like symbol tables, string tables, and similar - Symbol tables: unless the binary is stripped (‚strip <executable>‘) - as usually is for building the release binary, the ELF contains symbol tables and therefore information that can be used for core dump analysis (f.e. with gdb), about the function and variables, their names and addresses, everything that is required to retrieve some meaningful backtraces - Dynamic link information: about the external - shared library dependencies This way you can use a different kind of tools, like objdump (,objdump -x <executbale>‘) to inspect the binary on all these metadata information, or even disassemble machine code to human-readable assemble code (,objdump -d <executable>’). Another useful tool that can leverage on these descriptive information included in ELF is ldd - to inspect the dynamic link information: (,ldd <executable>’). This could be useful to resolve the issue when some shared libraries are missing on the target - are not deployed, which prevent executable to run, especially if this binary is not originally part of the image (f.e. if you want to use tcpmdump diagnostic tool that is not by default delivered with the image). # For more content, please visit my blog https://lnkd.in/dMPi7cvg Feedback as usual more than welcome. #unix #embedded #cplusplus #programming

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The #GitLab platform from the GitLab Foundation is primarily known to programmers as a #coordination tool ... only rarely is it known that the #platform for versioning new #software also supports completely different organisational tasks. Why only version software? Jointly written assignments or papers can also be organised here. The LRZ runs GitLab on its own server instances - this offers students and researchers more security. Discover LRZ GitLab: https://lnkd.in/gWc8eh82 #collaboration, #teamspirit, #team, #coordination, #organisation, #IT4Science, #discoverLRZ, #researchplanning, #projectmanagement EuroCC, Bayerische Forschungsallianz (BayFOR) GmbH,

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KubernetesCloud Native Berlin 🇩🇪 Meetup is celebrating the ✨ 10th anniversary of Kubernetes✨ 🔍 Join Karim Shakirov to explore a strategic method of autonomously and continuously optimizing your #K8s environment using a combination of Karpenter, Keda, and pod right-sizing. 💡 #HPA, #VPA, and Cluster autoscalers help efficiently manage clusters to ensure resilience and availability with minimal resources. However, achieving continuous, effective pod right-sizing remains a significant challenge due to several factors: - Shifting left resource allocations - Seasonality - Continuous delivery These factors introduce constant changes into the environment. To keep your environment continuously optimized for both cost and performance, you need a strategic approach combined with the right tools. Register now!

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📝 𝗡𝗲𝘄 𝗕𝗹𝗼𝗴 𝗣𝗼𝘀𝘁 | 𝗥𝗲𝘃𝗮𝗺𝗽𝗶𝗻𝗴 𝗔𝗿𝗴𝗼𝗖𝗗: 𝗲𝗺𝗯𝗿𝗮𝗰𝗶𝗻𝗴 𝗽𝗹𝘂𝗴𝗶𝗻𝘀 𝗮𝘀 𝘀𝘁𝗮𝗻𝗱𝗮𝗹𝗼𝗻𝗲 𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 Our latest article by Felix Brusch highlights a revolutionary idea for ArgoCD from #KubeCon 2024. Imagine ArgoCD plugins as standalone Kubernetes services - easier to manage, more scalable and more secure. 𝗜𝗻 𝘁𝗵𝗶𝘀 𝗮𝗿𝘁𝗶𝗰𝗹𝗲 𝘆𝗼𝘂 𝘄𝗶𝗹𝗹 𝗹𝗲𝗮𝗿𝗻: 🔹 How the new architecture reduces complexity and simplifies management. 🔹 Why service-based plugins might be the future. 🔹 The benefits for scalability and security. Felix gives a detailed insight into the proposed changes and their potential impact on the DevOps world. A must read for all Kubernetes enthusiasts and techies! 🔧💡 Curious now? Read the full article and discover how this innovation can improve ArgoCD Read the full article now, 𝗷𝘂𝘀𝘁 𝗳𝗼𝗹𝗹𝗼𝘄 𝘁𝗵𝗲 𝗹𝗶𝗻𝗸 👉 https://lnkd.in/epKd9Rns #ArgoCD #Kubernetes #DevOps #TechInnovation #evoila #blog

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ICYMI - at last week's #MSBuild, Thorsten Hans presented "Hyper-efficient serverless on AKS with Fermyon Platform for Kubernetes"! Follow along to learn how you could run your own high-density serverless platform on top of Microsoft Azure #Kubernetes Service: https://bit.ly/4e2DnoG

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Watch the video of the ignite by John Nguyen at the DevOpsDays Zurich 2024, about «Don't (.git)ignore the .vscode». 🎬 📹 https://buff.ly/3Qqu5cg #DevOpsDaysZH #dodzh #devops #devopsdays #ignite

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Watch the video of the ignite by Pawel Sucholbiak at the DevOpsDays Zurich 2024, about «Never say Hi». 🎬 📹 https://buff.ly/3QzfOd9 #DevOpsDaysZH #dodzh #devops #devopsdays #ignite

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Elixir: Happy Developers and Scaleable Backends? Listen to Sanne 🌟 Kalkman from CodeSandbox this week during DEVWorld Conference online to her talk on #Elixir. 👉 Sign up to replay via https://lnkd.in/eZUKXrGd According to the 2023 Stack Overflow Developer Survey, Elixir is the second most loved programming language, and its web framework Phoenix takes the number one spot in most loved frameworks. Not only is Elixir a joy to work with, it is also an excellent choice for highly scaleable and fault-tolerant backend systems and is an important part of successful tech companies such as Discord and Podium This talk will highlight the main ways in which Elixir differs from other commonly used backend languages like #JavaScript or #Ruby. Then, it will give developers from other languages an introduction into OTP, the underlying framework that makes it almost trivial to build concurrent and highly fault-tolerant systems in Elixir (and Erlang). Lastly, Sanne will highlight some of the specific ways in which Elixir and #Phoenix have allowed CodeSandbox to grow and move quickly with a very small team of #backend developers. The overall aim of this talk is to introduce otherwise experienced #developers to a language and ecosystem they are not yet familiar with, and hopefully inspire them to give Elixr and Phoenix a try for their next project. #devworldconference #devworld #futurism #technology #amsterdamconference #conference #amsterdam

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The problem with most TDD materials is that they only cover basic examples. Enough to get started, but not enough for real business applications. That's why I included three real-world projects in my new TDD course. You can pick the language of your choice: • Designing a Warehouse WebAPI with C# and .NET • Creating a Domain Name Checker with React and TypeScript • Developing a Query Searcher CLI App with Rust All these projects come with complete solutions by using Test-Driven Development. As a wise man once said: the best way to learn coding is to build real-world projects. Only 48 hours left to get the course with a 50% discount. Grab your copy here: transformyourcraft.com

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PHP architecture tool ( https://lnkd.in/eY4CbnYM ) Ensuring proper separation of concerns within a project is vital for maintaining clean and manageable code. But how can one effectively verify this architecture during development? Enter PHP Arketect, a powerful tool designed to facilitate the tracking of dependencies between layers. At its core, PHP Arketect offers a flexible solution for enforcing layer-based architecture, with the ability to define and monitor dependencies between different layers. For me, its utility is most evident in the enforcement of three fundamental rules: Domain, Application, and Infrastructure layers. Initially, I encountered a challenge with the Domain layer, particularly when it came to dependencies on core classes like DateTimeImmutable. While the rule class provided by PHP Arketect, NotHaveDependencyOutsideNamespace, was a step in the right direction, it didn't seamlessly handle these dependencies. To address this issue, I proposed a solution and submitted a merge request, which was subsequently accepted. This enhancement now allows for smoother handling of dependencies within the Domain layer, including those on core classes like DateTimeImmutable. By leveraging PHP Arketect and contributing to its improvement, developers can better enforce and validate layered architecture within their PHP projects, ultimately leading to cleaner, more maintainable codebases. https://lnkd.in/eH542gek

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Retry and Deadletter to handle unexpected behavior Full article -> https://lnkd.in/eDjRi-Td #eda #softwarearchitecture #learning #softwareengineer #deadletter

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New article: Unit Testing and TDD With PostgreSQL is Easy and Fun and You should be, like, totally doing it. Read all about how it is easy and fun and like super fast to do TDD-ing with PostgreSQL. https://lnkd.in/dwXCAQFE

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Daily Developer Digest Manfred Steyer `s free eBook about Modern Angular. A must read for every #Angular developer https://lnkd.in/enX5pJrq #technology #softwareengineering #programing #web #angular #typescript #javascript #webdev

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I'm writing NServiceBus unit/integration tests using TestContainers. The tests run a new SQL Server instance and deploy database migrations using DbUp. They also run the Azurite queue emulator as my NServiceBus transport. All inside containers. These are not "full" integration tests, but they are quick, reliable, and help verify operations against my external dependencies like sending messages to a queue or inserting records into a database. I wrote a little Substack article describing more details.

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Do you also think that 𝘀𝗲𝘁𝘁𝗶𝗻𝗴 𝘂𝗽 𝗮𝗻𝗱 𝗿𝘂𝗻𝗻𝗶𝗻𝗴 𝗖𝗜 𝗽𝗶𝗽𝗲𝗹𝗶𝗻𝗲𝘀 𝗳𝗼𝗿 𝗺𝗼𝗱𝗲𝗹-𝗯𝗮𝘀𝗲𝗱 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 on Windows is complex? Then we have great news for you! 🤩 📣 We have ported #TargetLink, our software for production code generation, to Linux. Now you can build your CI with TargetLink based on lean and efficient docker containers. What this means for you: scalability according to your needs, perfect operation in the cloud and a quick start - ✋ But before you start... Watch Felix Engel in action as he presents TargetLink on #Linux here 👉 https://ow.ly/gbX050RkTGN We look forward to making it easier for you to set up your CI pipelines in production software development! 😊 #CI #CICD #codequality #MBD #softwaredevelopment #codegeneration

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This repository contains the HULL Helm library chart. It is designed to ease building, maintaining and configuring Kubernetes objects in Helm charts and can be added to any Helm chart as an addon to enhance functionality without any risk of breaking existing Helm chart configurations. https://lnkd.in/gC7v7Ggg

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File Manager, Ant Commander Pro v 4.11 has been released! 💾🎉 Many improvements including better support for IntelliJ Themes. See video of more than 120 skins in 2 minutes. https://lnkd.in/eQ8HyYck #filemanager #skin #theme #lookandfeel #java #windows #macos #linux #files

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🚫 Avoid the Service Locator Code Smell in Dependency Injection 🛠️ 🔍 What is it? The Service Locator pattern hides dependencies by directly querying a specific dependency from the DI container, which violates the Inversion of Control principle. 🛠 Why avoid it? - It increases coupling - It partially moves the control from the Composition Root to the dependency consumer - It reduces code predictability - It makes debugging and testing more challenging 🚀 Better approach: Use Dependency Injection to provide dependencies explicitly to keep your code clean, modular, testable, and more maintainable. Let's make our code more robust by ditching the Service Locator for true DI! ✅ What do you think? Have you encountered the Service Locator pattern in your projects? Share your experiences in the comments! #ASPNETCore #SoftwareArchitecture #dotnet #csharp #DesignAndArchitecture #CodeDesign

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