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Programming Leftovers

Submitted by Roy Schestowitz on Monday 17th of May 2021 06:02:45 PM Filed under
Development
  • How to look at the stack with gdb

    I was chatting with someone yesterday and they mentioned that they don’t really understand exactly how the stack works or how to look at it.

    So here’s a quick walkthrough of how you can use gdb to look at the stack of a C program. I think this would be similar for a Rust program, but I’m going to use C because I find it a little simpler for a toy example and also you can do Terrible Things in C more easily.

  • Introduction to the Node.js reference architecture, Part 3: Code consistency

    Welcome back to our ongoing series about the Node.js reference architecture. Part 1 introduced what the Node.js reference architecture is all about, and Part 2 took a look at logging. In this article, we will dive into code consistency and how to enforce it with a linter tool like ESLint.

  • Error handling in Go HTTP applications – joe shaw

    Nate Finch had a nice blog post on error flags recently, and it caused me to think about error handling in my own greenfield Go project at work.

    Much of the Go software I write follows a common pattern: an HTTP JSON API fronting some business logic, backed by a data store of some sort. When an error occurs, I typically want to present a context-aware HTTP status code and an a JSON payload containing an error message. I want to avoid 400 Bad Request and 500 Internal Server Errors whenever possible, and I also don’t want to expose internal implementation details or inadvertently leak information to API consumers.

    I’d like to share the pattern I’ve settled on for this type of application.

  • Convenient matrices and other improvements Python 3.5 brought us

    Explore some of the underutilized but still useful Python features.

  • Announcing Rustup 1.24.2

    The rustup working group is happy to announce the release of rustup version 1.24.2. Rustup is the recommended tool to install Rust, a programming language that is empowering everyone to build reliable and efficient software.

    If you have a previous version of rustup installed, getting rustup 1.24.2 is as easy as closing your IDE and running:

    rustup self update
    Rustup will also automatically update itself at the end of a normal toolchain update:

    rustup update
    If you don't have it already, you can get rustup from the appropriate page on our website.

»

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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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