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today's howtos

Submitted by Rianne Schestowitz on Monday 22nd of March 2021 08:02:10 AM Filed under
HowTos
  • Docker File vs Docker Compose: What's the Difference?

    Docker File vs Docker Compose: What's the Difference?
    I've seen many people get confused between a Dockerfile and a Compose file. This is primarily because both are used to modify a Docker image in a way, though it's not technically correct.

    It is easy to confuse the two terms, but it's also necessary to understand the difference when making a conversation with a colleague or your (potential) employer.

    Dockerfile is what's used to create a container image, and a Compose file is what's used to deploy an instance of that image as a container.

    Let me go in a bit of detail so that you properly understand the difference between Docker Compose and Dockerfile.

  • How To Install PyCharm on Manjaro 20

    In this tutorial, we will show you how to install PyCharm on Manjaro 20. For those of you who didn’t know, PyCharm is an intelligent and fully-featured IDE for Python developed by JetBrains. It also provides support for Javascript, Typescript, and CSS, etc. You can also extend PyCharm features by using plugins. By using PyCharm plugins you can also get support for frameworks like Django, Flask. We can also use PyCharm for other programming languages like HTML, SQL, Javascript, CSS, and more. PyCharm is available in three editions: Professional, Community, and Edu. The Community and Edu editions are open-source projects and they are free, but they have fewer features. PyCharm Edu provides courses and helps you learn to program with Python. The Professional edition is commercial and provides an outstanding set of tools and features.

    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 through the step-by-step installation of the PyCharm CE on a Manjaro 20 (Nibia).

  • How Do I Escape Spaces in Paths for Scp in Linux?

    The Secure Copy tool (scp) is an easy way to securely copy files to and from remote computers. But frustration can easily set in when scp does not work correctly due to spaces in file names and/or folder paths.

    In this tutorial, we will show you 3 ways to avoid scp errors arising from having spaces in path names.

  • How to get any browser on Chrome OS

    If you have a Chromebook then you know Google Chrome is the pre-installed web browser. But that doesn’t mean it has to be your only browser. Since Chrome OS can now run Android, Linux, and even Windows apps, you can browse the web through third-party browsers like Microsoft Edge or Mozilla Firefox.

    Whether you’re looking to take advantage of a specific tool on a different browser or are simply tired of Google Chrome, here’s how to install any other full-fledged browser on Chrome OS.

    There are three ways you can access a new browser on your Chromebook. You can install its Android app, Linux client, or a compatible Windows desktop program through a cross-platform virtualization service called CrossOver. As long as the desired browser has a counterpart for any one of these platforms, you should be all set. Here’s how to employ each of these methods.

  • Why I use exa instead of ls on Linux

    We live in a busy world and can save time and effort by using the ls command when we need to look for files and data. But without a lot of tweaking, the default ls output isn't quite soothing to the eyes. Why spend your time squinting at black and white text when you have an alternative in exa?

    Exa is a modern-day replacement for the regular ls command, and it makes life easier. The tool is written in Rust, which is known for its parallelism and safety.

  • 5 everyday sysadmin tasks to automate with Ansible

    If you hate performing repetitive tasks, then I have a proposition for you. Learn Ansible!

    [...]

    Typically, many of these essential daily tasks require manual steps that depend upon an individual's skills, creating inconsistencies and resulting in configuration drift. This might be OK in a small-scale implementation where you're managing one server and know what you are doing. But what happens when you are managing hundreds or thousands of servers?

    If you are not careful, these manual, repeatable tasks can cause delays and issues because of human errors, and those errors might impact you and your organization's reputation.

  • Monitor Node.js applications on Red Hat OpenShift with Prometheus

    A great thing about Node.js is how well it performs inside a container. With the shift to containerized deployments and environments comes extra complexity. One such complexity is observing what’s going on within your application and its resources, and when resource use is outside of the expected norms.

    Prometheus is a tool that developers can use to increase observability. It is an installable service that gathers instrumentation metrics from your applications and stores them as time-series data. Prometheus is advanced and battle-tested, and a great option for Node.js applications running inside of a container.

»

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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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