In-depth DevOps & Cloud articles by Senior Java Developer Pavan Rangani — practical, production-grade tutorials and engineering deep-dives. 44 articles in this category.
July 23, 2026
Pending, ImagePullBackOff, CrashLoopBackOff, CreateContainerConfigError, OOMKilled. Each status points at a different subsystem. A systematic walk through the ones you will actually hit, and the comma… Read more
July 17, 2026
The Kubernetes Gateway API replaces Ingress with role-oriented resources: GatewayClass, Gateway, and HTTPRoute. Learn header matching, weighted traffic splitting, cross-namespace ReferenceGrant, and a… Read more
June 12, 2026
Cilium and Hubble use eBPF to deliver L3-L7 network observability in Kubernetes without sidecars. Learn flow visibility, service maps, NetworkPolicy verification, the hubble observe CLI, and Prometheu… Read more
May 7, 2026
How we run ArgoCD ApplicationSet across 50+ clusters: cluster generators, matrix patterns, progressive sync waves, template patches, and battle-tested rollback playbooks.… Read more
May 7, 2026
A practical guide to native sidecar containers in Kubernetes 1.32: lifecycle ordering, migration from emptyDir hacks, log shipping, service mesh, and PreStop gotchas.… Read more
April 7, 2026
Complete guide to building an internal developer platform with Backstage including software catalog, scaffolder templates, plugins, and production deployment.… Read more
April 6, 2026
Complete guide to evaluating OpenTofu vs Terraform and migrating infrastructure as code projects with zero downtime and full state compatibility.… Read more
March 26, 2026
Complete guide to running GitHub Actions self-hosted runners on Kubernetes with Actions Runner Controller, auto-scaling, and production hardening.… Read more
March 26, 2026
Complete guide to setting up reproducible development environments using Nix Flakes with declarative tooling, per-project shells, and CI/CD integration.… Read more
March 25, 2026
Complete guide to setting up Backstage developer portal with service catalog, custom plugins, TechDocs integration, and software templates for platform engineering.… Read more
March 25, 2026
Practical FinOps guide for Kubernetes cost optimization covering resource right-sizing, spot instances, cost allocation, showback reporting, and automated savings.… Read more
March 23, 2026
Complete guide to Argo Workflows for Kubernetes-native batch processing with DAG pipelines, parallel execution, retry strategies, and artifact management.… Read more
March 22, 2026
Master Terraform Stacks for multi-environment infrastructure management with reusable components, orchestrated deployments, and drift detection across environments.… Read more
March 21, 2026
Production guide to managing multi-cluster Kubernetes environments with Cluster API, covering provisioning, upgrades, GitOps integration, and cross-cloud patterns.… Read more
March 20, 2026
Complete guide to building production observability stacks with OpenTelemetry Collector pipelines, covering receivers, processors, exporters, and scaling patterns.… Read more
March 16, 2026
Complete guide to running WebAssembly workloads in Kubernetes using runwasi, SpinKube, and containerd shims with production deployment patterns.… Read more
March 10, 2026
Complete guide to Kubernetes Karpenter autoscaling covering node provisioning, workload consolidation, spot instance management, and production cost optimization.… Read more
March 9, 2026
Step-by-step production guide for migrating from HashiCorp Terraform to OpenTofu, covering state files, providers, and pipeline integration.… Read more
March 9, 2026
Learn how Kubernetes in-place pod resizing enables vertical scaling without restarts, including resize policies and VPA integration.… Read more
March 9, 2026
Complete guide to building internal developer portals with Backstage for platform engineering, covering service catalogs and self-service infrastructure.… Read more
March 9, 2026
Complete guide to GitOps using ArgoCD for application delivery and Crossplane for infrastructure provisioning through a unified Git workflow.… Read more
March 8, 2026
Define cloud infrastructure with Pulumi using real programming languages including TypeScript, Python, and Go for type-safe IaC workflows.… Read more
March 7, 2026
Design internal developer platforms that provide golden paths, self-service infrastructure, and unified developer portals using platform engineering.… Read more
March 6, 2026
Build production-grade CI/CD pipelines with GitHub Actions using reusable workflows, matrix strategies, and automated deployment patterns.… Read more
March 5, 2026
Manage Terraform state with remote backends, DynamoDB locking, workspace isolation, and state migration strategies for team environments.… Read more
March 4, 2026
Scale Kubernetes workloads based on event sources using KEDA with custom metrics, queue-based triggers, and production-ready autoscaling patterns.… Read more
March 3, 2026
Build scalable CI/CD pipelines with GitHub Actions reusable workflows, composite actions, and organization-wide automation patterns.… Read more
March 2, 2026
Implement continuous delivery for Kubernetes with FluxCD using GitOps source controllers, Helm releases, and automated image updates.… Read more
March 1, 2026
Deploy Cilium eBPF networking in Kubernetes for high-performance networking, L7 network policies, and Hubble observability without sidecar proxies.… Read more
February 28, 2026
Build programmable CI/CD pipelines with Dagger using containerized build steps that replace fragile YAML configurations.… Read more
February 27, 2026
Manage cloud infrastructure with Crossplane on Kubernetes. Learn compositions, claims, and provider configuration for multi-cloud provisioning.… Read more
February 26, 2026
Build an internal developer portal with Backstage. Learn software catalog setup, templates, plugins, and platform engineering best practices.… Read more
February 25, 2026
Learn how platform engineering is reshaping global software delivery with internal developer platforms, golden paths, and self-service infrastructure.… Read more
February 23, 2026
Build production-grade CI/CD pipelines with GitHub Actions — from testing to deployment with security scanning and multi-environment support.… Read more
February 23, 2026
Cut Kubernetes infrastructure costs with right-sizing, spot instances, autoscaling, and resource quota strategies for production clusters.… Read more
February 20, 2026
Your users are global, your servers are in us-east-1. Edge computing with Cloudflare Workers and Deno Deploy eliminates that latency gap — delivering sub-50ms responses worldwide.… Read more
February 19, 2026
You cannot fix what you cannot see. OpenTelemetry unifies traces, metrics, and logs with vendor-neutral instrumentation — from auto-instrumented Spring Boot apps to the Grafana observability stack.… Read more
February 19, 2026
Gateway API replaces Ingress, native sidecar containers change service mesh patterns — K8s 1.32 production guide.… Read more
February 16, 2026
ArgoCD 3.0 brings ApplicationSets, progressive delivery, and multi-tenant GitOps for enterprise Kubernetes.… Read more
February 13, 2026
Infrastructure as Code landscape has shifted — comparing Terraform, Pulumi, and OpenTofu for real-world projects.… Read more
February 10, 2026
Design an IDP with Backstage, Crossplane, and ArgoCD — reduce cognitive load and accelerate developer velocity.… Read more
February 9, 2026
You want serverless simplicity with container flexibility. We compare AWS Fargate, Google Cloud Run, and Azure Container Apps on performance, cost, scaling, and developer experience.… Read more
February 7, 2026
Step-by-step migration from Docker Compose development to Kubernetes production with Helm charts and Kustomize.… Read more
January 28, 2026
From optimized Dockerfiles to Kubernetes deployments — everything a Java developer needs to containerize and orchestrate Spring Boot apps.… Read more