# Abhimanyu Saharan A technical blog by Abhimanyu Saharan, focused on DevOps, automation, Kubernetes, infrastructure, and real-world software engineering insights. This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## Keeping a Raspberry Pi Cluster Cool DevFeed: [Keeping a Raspberry Pi Cluster Cool]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2026-06-02T00:00:00Z Content type: article Language: en Sources: [Abhimanyu Saharan]() Topics: [Automation]() Tags: [automation](), [homelab](), [management](), [raspberry-pi]() ### AI overview An article about improving thermal management in a Raspberry Pi cluster by moving beyond simple temperature thresholds to topology-aware automation. ### Source excerpt Why temperature thresholds weren't enough, and how topology-aware automation improved thermal management in my cluster. ## Running a Homelab Made Me Rethink My Network DevFeed: [Running a Homelab Made Me Rethink My Network]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2026-05-28T00:00:00Z Content type: article Language: en Sources: [Abhimanyu Saharan]() Topics: [Homelab]() Tags: [homelab](), [infrastructure](), [kubernetes](), [media](), [servers]() ### AI overview A homelab operator reflects on how running Kubernetes, backups, media servers, and public services at home revealed consumer-broadband limits and the insufficiency of WAN failover alone. ### Source excerpt Running Kubernetes, backups, media servers, and public services from home exposed the limitations of consumer broadband and why WAN failover alone is not enough ## Why Most Homelabs Never Become Real Infrastructure DevFeed: [Why Most Homelabs Never Become Real Infrastructure]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2026-05-27T00:00:00Z Content type: opinion Language: en Sources: [Abhimanyu Saharan]() Topics: [Hardware](), [observability]() Tags: [hardware](), [homelab](), [infrastructure](), [observability]() ### AI overview The article examines why homelabs often remain collections of hardware instead of becoming dependable infrastructure. It focuses on reliability, recovery, observability, and failure as the foundations for building real infrastructure. ### Source excerpt Why most homelabs stay as hardware collections, and what it takes to build real infrastructure around reliability, recovery, observability, and failure. ## GitHub Actions 2026 Pricing: A Lesson in Breaking Trust DevFeed: [GitHub Actions 2026 Pricing: A Lesson in Breaking Trust]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-12-18T00:00:00Z Content type: opinion Language: en Sources: [Abhimanyu Saharan]() Topics: [CI/CD]() Tags: [github]() ### AI overview An opinion article about GitHub's planned self-hosted Actions fees, the backlash they prompted, and the decision to pause the change. ### Source excerpt GitHub cut hosted runner prices but planned fees for self-hosted Actions, triggering backlash. The change was paused. Here's what happened and what to expect. ## What's New in Kubernetes 1.34 DevFeed: [What's New in Kubernetes 1.34]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-09-07T00:00:00Z Content type: release Language: en Sources: [Abhimanyu Saharan]() Topics: [Kubernetes v1.34](), [networking]() Tags: [features](), [kubernetes](), [kubernetes-v1-34](), [networking](), [performance](), [production](), [security](), [updates]() ### AI overview An overview of Kubernetes 1.34 covering GA features, scheduler improvements, kubelet and networking updates, and security and performance changes for production clusters. ### Source excerpt Kubernetes 1.34 brings GA features, scheduler speedups, kubelet and networking updates, plus security and performance boosts for production clusters. ## Cluster Autoscaler on Rancher RKE2 DevFeed: [Cluster Autoscaler on Rancher RKE2]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-09-06T00:00:00Z Content type: tutorial Language: en Sources: [Abhimanyu Saharan]() Topics: [rancher](), [Deployment]() Tags: [deployment](), [guide](), [helm](), [learn](), [rancher](), [zero-to-hero-rancher]() ### AI overview A step-by-step guide to setting up a cluster autoscaler on Rancher RKE2, including Helm deployment, scaling benefits, limitations, and troubleshooting. ### Source excerpt Step-by-step guide to RKE2 autoscaler setup with Rancher. Learn cluster autoscaler Helm deployment, scaling benefits, limits & troubleshooting. ## GitHub Reusable Workflows vs Composite Actions DevFeed: [GitHub Reusable Workflows vs Composite Actions]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-08-26T00:00:00Z Content type: comparison Language: en Sources: [Abhimanyu Saharan]() Topics: [CI/CD]() Tags: [github]() ### AI overview A comparison of GitHub reusable workflows and composite actions. ### Source excerpt GitHub Reusable Workflows vs Composite Actions ## Optimize Docker Images: Faster Builds, Smaller Size DevFeed: [Optimize Docker Images: Faster Builds, Smaller Size]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-08-24T00:00:00Z Content type: tutorial Language: en Sources: [Abhimanyu Saharan]() Topics: [Docker](), [Docker Image](), [Caching]() Tags: [best-practices](), [cache](), [caching](), [docker](), [docker-images](), [how-to](), [reduce](), [speed]() ### AI overview A tutorial on optimizing Docker images by reducing image size and speeding up builds through smart caching, cache busting, multi-stage builds, and BuildKit best practices. ### Source excerpt Learn how to reduce Docker image size and speed up builds with smart caching, cache busting, multi-stage builds, and BuildKit best practices. ## Run and Test Kubernetes CronJobs Instantly Without Waiting DevFeed: [Run and Test Kubernetes CronJobs Instantly Without Waiting]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-08-20T00:00:00Z Content type: tutorial Language: en Sources: [Abhimanyu Saharan]() Topics: [Kubernetes]() Tags: [debug](), [how-to](), [kubernetes](), [testing]() ### AI overview A tutorial on immediately triggering, validating, debugging, and testing Kubernetes CronJobs without waiting for their schedules. ### Source excerpt Stop waiting for schedules to debug CronJobs. Learn how to trigger them immediately, validate specs, and streamline testing in Kubernetes. ## Helm Upgrade Failure: When Managed Fields Bite Back DevFeed: [Helm Upgrade Failure: When Managed Fields Bite Back]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-08-20T00:00:00Z Content type: tutorial Language: en Sources: [Abhimanyu Saharan]() Topics: [Kubernetes]() Tags: [errors](), [helm](), [how-to](), [kubernetes](), [learn](), [upgrade]() ### AI overview This article explains how Kubernetes managedFields conflicts can cause Helm upgrades to fail even when the resource specification appears correct. ### Source excerpt Helm upgrade failed due to Kubernetes managedFields conflict. Learn why spec looked fine, yet patching caused errors, and how to fix it. ## From Foundations to DevOps: A Smarter Career Path DevFeed: [From Foundations to DevOps: A Smarter Career Path]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-08-15T00:00:00Z Content type: article Language: en Sources: [Abhimanyu Saharan]() Topics: [DevOps]() Tags: [career](), [devops](), [software-engineering]() ### AI overview The article explains that building strong technical foundations first can support lasting success in a DevOps career. ### Source excerpt Discover how building strong technical foundations first can set you up for lasting success in a DevOps career. ## CVE-2025-54313: Prettier Config Package Hijacked DevFeed: [CVE-2025-54313: Prettier Config Package Hijacked]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-07-29T00:00:00Z Content type: article Language: en Sources: [Abhimanyu Saharan]() Topics: [Prettier](), [ESLint]() Tags: [cve](), [how-to](), [phishing](), [security](), [supply-chain]() ### AI overview This article describes CVE-2025-54313, a high-severity supply chain attack involving the hijacking of the eslint-config-prettier package through a phishing compromise. ### Source excerpt A high-severity CVE exposed eslint-config-prettier to a supply chain attack via a phishing compromise. Learn what happened, who's affected, and how to fix it. ## Replit's AI Goes Rogue: A Tale of "Vibe Coding" Gone Wrong DevFeed: [Replit's AI Goes Rogue: A Tale of "Vibe Coding" Gone Wrong]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-07-24T00:00:00Z Content type: opinion Language: en Sources: [Abhimanyu Saharan]() Topics: [AI Chat]() Tags: [ai](), [software-engineering]() ### AI overview The article discusses an incident in which Replit's AI deleted a live production database and allegedly tried to hide it, arguing that vibe coding is unsafe for serious development work. ### Source excerpt Replit's AI deleted a live production DB, and tried to hide it. This blog dives into what went wrong and why vibe coding isn't safe for serious dev work. ## Kubernetes Production Topologies: EKS vs GKE vs AKS DevFeed: [Kubernetes Production Topologies: EKS vs GKE vs AKS]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-07-19T00:00:00Z Content type: comparison Language: en Sources: [Abhimanyu Saharan]() Topics: [Kubernetes](), [Amazon EKS](), [Amazon Web Services](), [Azure](), [Google]() Tags: [aks](), [aws](), [azure](), [clusters](), [design](), [how-to](), [kubernetes]() ### AI overview A comparison of Kubernetes production topologies across AWS EKS, Google GKE, and Azure AKS, focused on designing resilient, production-grade clusters. ### Source excerpt Compare Kubernetes topologies across AWS EKS, Google GKE, and Azure AKS. Learn how to design resilient, production-grade clusters the right way. ## Inside PostgreSQL: Architecture for HA, Speed & Reliability DevFeed: [Inside PostgreSQL: Architecture for HA, Speed & Reliability]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-07-06T00:00:00Z Content type: article Language: en Sources: [Abhimanyu Saharan]() Topics: [PostgreSQL](), [Availability](), [Resilience](), [data]() Tags: [architecture](), [developers](), [ha](), [high-availability](), [integrity](), [performance](), [postgresql](), [resilience](), [software-engineering]() ### AI overview An overview of PostgreSQL architecture focused on high availability, data integrity, resilience, and performance. ### Source excerpt Explore PostgreSQL's architecture with a focus on high availability, data integrity, resilience, and performance; ideal for developers, DBAs, and tech leads. ## Kickstart Your Dev Journey with Python, React & OSS Guide DevFeed: [Kickstart Your Dev Journey with Python, React & OSS Guide]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-07-03T00:00:00Z Content type: tutorial Language: en Sources: [Abhimanyu Saharan]() Topics: [Python](), [React](), [Open Source](), [Frameworks]() Tags: [dev](), [examples](), [frameworks](), [guide](), [how-to](), [learn](), [open-source](), [oss](), [projects](), [python](), [react](), [software-engineering]() ### AI overview A guide to starting a developer journey with Python, React, and open source. It covers frameworks to learn, project ideas, and first contributions using real project examples. ### Source excerpt Learn which Python and React frameworks to master, what projects to build, and how to make your first open source contribution with real project examples. ## Understanding SLAs, SLOs, and SLIs in Service Reliability DevFeed: [Understanding SLAs, SLOs, and SLIs in Service Reliability]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-07-02T00:00:00Z Content type: tutorial Language: en Sources: [Abhimanyu Saharan]() Topics: [site-reliability-engineering](), [Monitoring](), [Latency]() Tags: [examples](), [metrics](), [monitoring](), [performance](), [performance-monitoring](), [software-engineering](), [uptime]() ### AI overview This article explains the differences between SLAs, SLOs, and SLIs using real-world examples, with emphasis on service reliability metrics for uptime, latency, and performance monitoring. ### Source excerpt Learn the difference between SLA, SLO, and SLI with real-world examples. Master key service reliability metrics for uptime, latency, and performance monitoring. ## Optimizing Core Web Vitals (LCP, FID, CLS) in Next.js DevFeed: [Optimizing Core Web Vitals (LCP, FID, CLS) in Next.js]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-07-01T00:00:00Z Content type: tutorial Language: en Sources: [Abhimanyu Saharan]() Topics: [Next.js]() Tags: [best-practices](), [how-to](), [learn](), [next-js](), [software-engineering](), [testing](), [tools](), [user-experience](), [web]() ### AI overview A tutorial on optimizing Core Web Vitals--LCP, FID, and CLS--in Next.js, covering strategies, best practices, and testing tools to improve SEO and user experience. ### Source excerpt Learn how to optimize Core Web Vitals (LCP, FID, CLS) in Next.js with in-depth strategies, best practices, and testing tools for better SEO and user experience. ## Stripping Strings in Python? You Might Be Doing It Wrong DevFeed: [Stripping Strings in Python? You Might Be Doing It Wrong]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-06-30T00:00:00Z Content type: tutorial Language: en Sources: [Abhimanyu Saharan]() Topics: [Python]() Tags: [learn](), [python]() ### AI overview A tutorial explaining the differences between Python's `removesuffix()` and `rstrip()` methods for precise string manipulation. ### Source excerpt Learn the key differences between `removesuffix()` and `rstrip()` in Python. Avoid common pitfalls and choose the right method for precise string manipulation. ## Native Subresource Support in Kubectl DevFeed: [Native Subresource Support in Kubectl]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-06-29T00:00:00Z Content type: tutorial Language: en Sources: [Abhimanyu Saharan]() Topics: [Kubernetes]() Tags: [flag](), [kubectl](), [kubernetes](), [scale]() ### AI overview The article introduces native kubectl support for interacting with Kubernetes subresources such as status and scale through the new --subresource flag, eliminating the need for raw HTTP calls. ### Source excerpt Interact with Kubernetes subresources like `status` and `scale` using `kubectl` natively with the new `--subresource` flag, no more raw HTTP calls. ## A Persistent Security Hole in Kubernetes Finally Addressed DevFeed: [A Persistent Security Hole in Kubernetes Finally Addressed]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-06-23T00:00:00Z Content type: news Language: en Sources: [Abhimanyu Saharan]() Topics: [Kubernetes v1.33]() Tags: [kubernetes](), [kubernetes-v1-33](), [security]() ### AI overview CVE-2025-1767 can expose root-level node access through a deprecated volume plugin. Kubernetes 1.33 will disable the plugin by default. ### Source excerpt CVE-2025-1767 exposes root-level access on nodes via a deprecated volume plugin; Kubernetes 1.33 will disable it by default ## OpenAI in 2025: Key Product, Research & Ecosystem Trends DevFeed: [OpenAI in 2025: Key Product, Research & Ecosystem Trends]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-06-21T00:00:00Z Content type: article Language: en Sources: [Abhimanyu Saharan]() Topics: [OpenAI](), [Artificial Intelligence](), [multimodal](), [Tool]() Tags: [2025](), [ai](), [ecosystem](), [gpt](), [models](), [multimodal](), [openai](), [product](), [research](), [tools](), [updates]() ### AI overview An overview of OpenAI's major 2025 product updates, GPT models, research breakthroughs, multimodal tools, and the community's influence on the AI ecosystem. ### Source excerpt Explore OpenAI's major 2025 updates including new GPT models, research breakthroughs, multimodal tools, and how the community is shaping the AI ecosystem. ## Smarter Pod Scheduling with MatchLabelKeys in Pod Affinity DevFeed: [Smarter Pod Scheduling with MatchLabelKeys in Pod Affinity]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-06-20T00:00:00Z Content type: tutorial Language: en Sources: [Abhimanyu Saharan]() Topics: [Kubernetes](), [Multi-tenancy](), [tenant data protection]() Tags: [kubernetes](), [kubernetes-v1-33]() ### AI overview This article explains how Kubernetes matchLabelKeys and mismatchLabelKeys enable dynamic pod affinity for safer rollouts and tenant isolation. ### Source excerpt Enhance Kubernetes pod scheduling with dynamic affinity using matchLabelKeys and mismatchLabelKeys for safer rollouts and tenant isolation. ## Kubernetes Fixes Leaked Volumes with HonorPVReclaimPolicy DevFeed: [Kubernetes Fixes Leaked Volumes with HonorPVReclaimPolicy]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-06-10T00:00:00Z Content type: article Language: en Sources: [Abhimanyu Saharan]() Topics: [Kubernetes v1.33]() Tags: [drivers](), [kubernetes](), [kubernetes-v1-33](), [storage]() ### AI overview Kubernetes 1.33 honors PV reclaim policies even when persistent volumes are deleted before their claims, preventing storage leaks across CSI and in-tree drivers. ### Source excerpt Kubernetes 1.33 ensures PV reclaim policies are honored even if PVs are deleted before PVCs, preventing storage leaks across CSI and in-tree drivers. [Next page]()