Kubernetes, the de facto orchestration system for containerized applications, offers robust solutions for managing storage through Persistent Volumes (PVs) and Persistent Volume Claims (PVCs). These resources ensure that storage persists beyond the lifecycle of individual pods, but managing them, especially cleaning up “Released” PVs and PVCs, can become a daunting task as your cluster grows. … Read more
Managing Helm charts efficiently is crucial for Kubernetes administrators and DevOps engineers. Today, I’ll guide you through automating the process of checking for the latest version of a Helm chart and downloading it using Python. Specifically, we’ll focus on the aws-ebs-csi-driver Helm chart as an example, but the principles can be applied to any Helm … Read more
In the intricate web of cloud computing, efficiently managing and troubleshooting EC2 instances is a cornerstone of maintaining a robust AWS infrastructure. One of the lesser-known, yet powerful, capabilities is the ability to re-run UserData scripts on these instances. Originally intended to execute only during the initial launch, there are practical scenarios where re-executing UserData … Read more
In the vast expanse of AWS infrastructure, keeping track of which instances are marked for backup can be a daunting task. Whether you’re managing a handful of instances or overseeing a sprawling cloud environment, the importance of a robust backup strategy cannot be overstated. Today, we’re diving into how a simple Python script can streamline … Read more
In the dynamic world of DevOps, managing API rate limits is akin to steering a ship through treacherous waters. The GitHub API, with its stringent usage quotas, poses a significant challenge for continuous integration and delivery pipelines, particularly those orchestrated by Jenkins. This article unfolds a real-world scenario faced by a DevOps Engineer named Alan, … Read more
In the ever-evolving landscape of DevOps, Jenkins has long stood as a cornerstone tool for continuous integration and continuous delivery (CI/CD). Born in the early days of agile development, Jenkins provided an open-source platform that was revolutionary for its time, automating the build, test, and deployment phases of software development. However, as the demands of … Read more
In the dynamic realm of DevOps, professionals strive to blend the technical mastery of development and operations with the agility and efficiency required to meet modern software demands. However, beneath the surface of this technical expertise and collaborative ethos, subconscious mental tendencies can significantly influence outcomes, sometimes in ways we don’t anticipate. Understanding and addressing … Read more
In the realm of DevOps, where collaboration, efficiency, and continuous improvement are paramount, the principles of Don Miguel Ruiz’s “The Four Agreements” can be surprisingly applicable and transformative. While originally intended as a personal code for living, these agreements can be adeptly adapted to professional environments, particularly in DevOps, to foster a culture of respect, … Read more
Creating a Kubernetes troubleshooting checklist is a great way to systematically address issues that may arise in your Kubernetes environment. This checklist can help you in you identify and resolve problems more efficiently. Here’s a comprehensive cheatsheet to guide you through troubleshooting Kubernetes: 1. Cluster Health Checks 2. Pod and Container Issues 3. Networking Troubleshooting … Read more
Managing backups for Amazon EC2 instances is a crucial task for any system administrator or DevOps engineer. Regular backups ensure that critical data is not lost in the event of an instance failure, accidental deletion, or other disasters. In this article, we’ll explore how to automate the backup process for EC2 instances using Python, leveraging … Read more