--- title: Learn Computing from the Experts | The Rheinwerk Computing Blog | DevOps description: DevOps | Dive into programming, web development, and more with Rheinwerk Computing Blog! Your go-to resource for expanding your computing knowledge. --- [![Rheinwerk Computing Logo](https://blog.rheinwerk-computing.com/hubfs/computing_logo-header.svg)](https://blog.rheinwerk-computing.com/) [Blog](https://blog.rheinwerk-computing.com) - Books - Get an overview of our wide selection of books on every relevant computing topic. - [General Computing](https://www.sap-press.com/rheinwerk-computing/general-computing/) - [DevOps](https://www.sap-press.com/rheinwerk-computing/devops/) - [Programming Languages](https://www.sap-press.com/rheinwerk-computing/programming-languages/) - [Security](https://www.sap-press.com/rheinwerk-computing/security/) - [Software Development](https://www.sap-press.com/rheinwerk-computing/software-development/) - Book Subscription - Get unlimited access to all Rheinwerk Computing books! - [Programming Subscription](https://sap-press.com/subscriptions/) # DevOps [![What Are Registered Variables in Ansible?](https://blog.rheinwerk-computing.com/hs-fs/hubfs/What%20Are%20Registered%20Variables%20in%20Ansible_.jpg?height=600&name=What%20Are%20Registered%20Variables%20in%20Ansible_.jpg)](https://blog.rheinwerk-computing.com/what-are-registered-variables-in-ansible) ## [What Are Registered Variables in Ansible?](https://blog.rheinwerk-computing.com/what-are-registered-variables-in-ansible) When you start to familiarize yourself with Ansible, especially in the early phase, you’ll often call Linux commands with command or shell—and later,... ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/what-are-registered-variables-in-ansible) [![How to Create Your First Ansible Playbook](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Create%20Your%20First%20Ansible%20Playbook.jpg?height=600&name=How%20to%20Create%20Your%20First%20Ansible%20Playbook.jpg)](https://blog.rheinwerk-computing.com/how-to-create-your-first-ansible-playbook) ## [How to Create Your First Ansible Playbook](https://blog.rheinwerk-computing.com/how-to-create-your-first-ansible-playbook) *Playbooks* are the entry points for any Ansible project. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/how-to-create-your-first-ansible-playbook) [![How to Configure Ansible](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Configure%20Ansible.jpg?height=600&name=How%20to%20Configure%20Ansible.jpg)](https://blog.rheinwerk-computing.com/how-to-configure-ansible) ## [How to Configure Ansible](https://blog.rheinwerk-computing.com/how-to-configure-ansible) When working with Ansible, the default settings aren’t always the best fit for your environment—especially in a development or test setup. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/how-to-configure-ansible) [![8 Special Modules in Ansible](https://blog.rheinwerk-computing.com/hs-fs/hubfs/8%20Special%20Modules%20in%20Ansible.jpg?height=600&name=8%20Special%20Modules%20in%20Ansible.jpg)](https://blog.rheinwerk-computing.com/8-special-modules-in-ansible) ## [8 Special Modules in Ansible](https://blog.rheinwerk-computing.com/8-special-modules-in-ansible) In this blog post, we introduce you to a selection of Ansible modules that allow you to trigger very specific (mostly internal) actions. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/8-special-modules-in-ansible) [![Git Error Messages (Root Causes and Solutions)](https://blog.rheinwerk-computing.com/hs-fs/hubfs/Git%20Error%20Messages%20(Root%20Causes%20and%20Solutions).jpg?height=600&name=Git%20Error%20Messages%20(Root%20Causes%20and%20Solutions).jpg)](https://blog.rheinwerk-computing.com/git-error-messages-causes-solutions) ## [Git Error Messages (Root Causes and Solutions)](https://blog.rheinwerk-computing.com/git-error-messages-causes-solutions) In this blog post, explore the essence of a Git error message, the context where they can occur, and some possible root causes and solutions. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/git-error-messages-causes-solutions) [![What Are Dockerfiles?](https://blog.rheinwerk-computing.com/hs-fs/hubfs/What%20Are%20Dockerfiles_.jpg?height=600&name=What%20Are%20Dockerfiles_.jpg)](https://blog.rheinwerk-computing.com/what-are-dockerfiles) ## [What Are Dockerfiles?](https://blog.rheinwerk-computing.com/what-are-dockerfiles) If you've ever used Docker Hub to spin up containers, you've probably relied on ready-to-go images. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/what-are-dockerfiles) [![How to Scale and Load Balance in Kubernetes](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Scale%20and%20Load%20Balance%20in%20Kubernetes.png?height=600&name=How%20to%20Scale%20and%20Load%20Balance%20in%20Kubernetes.png)](https://blog.rheinwerk-computing.com/how-to-scale-and-load-balance-in-kubernetes) ## [How to Scale and Load Balance in Kubernetes](https://blog.rheinwerk-computing.com/how-to-scale-and-load-balance-in-kubernetes) Along with self-healing, horizontal scaling is one of the best features of Kubernetes that significantly simplifies IT operations. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/how-to-scale-and-load-balance-in-kubernetes) [![Getting Started with Amazon ECS: Simplifying Docker Container Management in the Cloud](https://blog.rheinwerk-computing.com/hs-fs/hubfs/Getting%20Started%20with%20Amazon%20ECS_%20Simplifying%20Docker%20Container%20Management%20in%20the%20Cloud.jpg?height=600&name=Getting%20Started%20with%20Amazon%20ECS_%20Simplifying%20Docker%20Container%20Management%20in%20the%20Cloud.jpg)](https://blog.rheinwerk-computing.com/getting-started-with-amazon-ecs-simplifying-docker-container-management-in-the-cloud) ## [Getting Started with Amazon ECS: Simplifying Docker Container Management in the Cloud](https://blog.rheinwerk-computing.com/getting-started-with-amazon-ecs-simplifying-docker-container-management-in-the-cloud) Discover how Amazon Elastic Container Service (ECS) streamlines the deployment and management of Docker containers in the cloud, offering scalability... ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/getting-started-with-amazon-ecs-simplifying-docker-container-management-in-the-cloud) [![How to Manage Dotfiles with Git](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Manage%20Dotfiles%20with%20Git.jpg?height=600&name=How%20to%20Manage%20Dotfiles%20with%20Git.jpg)](https://blog.rheinwerk-computing.com/how-to-manage-dotfiles-with-git) ## [How to Manage Dotfiles with Git](https://blog.rheinwerk-computing.com/how-to-manage-dotfiles-with-git) *Dotfiles*, that is, files whose names begin with a period, are used to store settings on all Unix-like operating systems. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/how-to-manage-dotfiles-with-git) [![What Are the Benefits of Chaos Engineering in DevOps?](https://blog.rheinwerk-computing.com/hs-fs/hubfs/What%20Are%20the%20Benefits%20of%20Chaos%20Engineering%20in%20DevOps.jpg?height=600&name=What%20Are%20the%20Benefits%20of%20Chaos%20Engineering%20in%20DevOps.jpg)](https://blog.rheinwerk-computing.com/what-are-the-benefits-of-chaos-engineering-in-devops) ## [What Are the Benefits of Chaos Engineering in DevOps?](https://blog.rheinwerk-computing.com/what-are-the-benefits-of-chaos-engineering-in-devops) If your team is already working according to DevOps principles and you want to test how good your workflows are, then you should take a look at *chaos...* ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/what-are-the-benefits-of-chaos-engineering-in-devops) - [1](https://blog.rheinwerk-computing.com/tag/devops/page/1) - [2](https://blog.rheinwerk-computing.com/tag/devops/page/2) - [3](https://blog.rheinwerk-computing.com/tag/devops/page/3) - [4](https://blog.rheinwerk-computing.com/tag/devops/page/4) - [5](https://blog.rheinwerk-computing.com/tag/devops/page/5) - ### Blog Topics - [All Topics](https://blog.rheinwerk-computing.com) - [Programming Languages](https://blog.rheinwerk-computing.com/tag/programming-languages) - [How To](https://blog.rheinwerk-computing.com/tag/how-to) - [DevOps](https://blog.rheinwerk-computing.com/tag/devops) - [Featured](https://blog.rheinwerk-computing.com/tag/featured) - [JavaScript](https://blog.rheinwerk-computing.com/tag/javascript) - [Cybersecurity](https://blog.rheinwerk-computing.com/tag/cybersecurity) - [What Is?](https://blog.rheinwerk-computing.com/tag/what-is) - [Artificial Intelligence](https://blog.rheinwerk-computing.com/tag/artificial-intelligence) - [Web Development](https://blog.rheinwerk-computing.com/tag/web-development) - [Software Development](https://blog.rheinwerk-computing.com/tag/software-development) **Subscribe to our blog!**Get notified about future blog updates. - - - ### Most Popular Blog Posts 1. 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