How to Fix Kubernetes CrashLoopBackOff: Causes and Commands (2026)
Fix Kubernetes CrashLoopBackOff step by step: what the state means, the 10s to 5 minute backoff and the new per-node max in 1.35+, kubectl describe and logs --previous, exit codes 1, 127, 137 and 143, probe and OOM causes, and kubectl debug for crashing containers.
13 minOct 20, 2026How to Fix 502 Bad Gateway and 504 Gateway Timeout Errors (2026)
Fix 502 Bad Gateway and 504 Gateway Timeout step by step: find which hop generated the error, read NGINX upstream errors, fix keepalive and idle timeout mismatches (ALB 60s, GCP 600s), Kubernetes readiness and rollout gaps, Gateway API timeouts and Cloudflare 520 to 526.
15 minOct 20, 2026Docker in 2026: Engine 29, containerd 2.3 LTS, Podman 6 and the AI Push
The state of Docker and containers in October 2026: Docker Engine 29.9, Desktop 4.96 and its licence terms, Model Runner and the MCP Toolkit, free Hardened Images, Hub pull limits, containerd 2.3 LTS, Podman 6.0, BuildKit 0.34 and OCI artifacts.
12 minOct 20, 2026Distributed Tracing Explained: traceparent, Sampling and Jaeger v2 (2026)
Distributed tracing in 2026, explained by an infrastructure engineer: spans, W3C traceparent propagation, head vs tail sampling in the OpenTelemetry Collector, Jaeger v2 after v1's end of life, Grafana Tempo 3, Zipkin's status, trace-to-logs correlation and what traces cost.
12 minOct 20, 2026DevOps Roadmap 2026: Skills, Certifications and What AI Changed
A DevOps roadmap for 2026 built on current data: Indeed's senior-heavy rebound in software postings, Stack Overflow 2025 and 2026 survey results on AI and pay, CKA and CNPA exam facts, and a learning path from Linux to platform engineering.
13 minOct 20, 2026Crossplane vs Terraform vs Pulumi in 2026: Control Plane or Plan/Apply?
Crossplane vs Terraform, OpenTofu and Pulumi as of October 2026: Crossplane v2 namespaced resources and function pipelines, CNCF graduation, Pulumi running HCL, Terraform 1.16 and OpenTofu 1.13, how each handles drift, what it costs, and which team fits which tool.
12 minOct 20, 2026Cloud Outages 2025-2026: What 7 Official Postmortems Actually Teach
The AWS us-east-1 DynamoDB DNS outage, Azure Front Door, two Cloudflare global failures, Google Cloud Service Control and two 2026 incidents, read from the official postmortems: root causes, durations, and the static stability, cell and dependency-mapping fixes that follow.
14 minOct 20, 2026How to Run Chaos Experiments on Kubernetes with Chaos Mesh (2026)
Step-by-step Chaos Mesh 2.8.5 guide: install with Helm on containerd, opt namespaces in, write PodChaos, NetworkChaos and StressChaos YAML, gate experiments on a Prometheus SLO, schedule them, and run the same test with a LitmusChaos promProbe, plus a troubleshooting table.
16 minOct 20, 2026Chaos Engineering in 2026: Tools, AI Agents and What the Evidence Says
Chaos engineering in 2026: where Chaos Mesh 2.8.5, LitmusChaos 3.33, AWS FIS, Azure Chaos Studio Workspaces, Gremlin and Steadybit stand, how AI agents and MCP servers entered resilience testing, how to run game days, and how thin the evidence that it cuts incidents really is.
13 minOct 20, 2026How to Do Canary Deployments with Argo Rollouts 1.10 (2026)
Step-by-step Argo Rollouts canary guide for 2026: install v1.10.1 with Helm and the Gateway API plugin v0.17.0, write a Rollout with weighted steps, add a Prometheus AnalysisTemplate, watch automated rollback, and fix the common errors.
14 minOct 20, 2026How to Build an MCP Server in Python and TypeScript (2026)
Build, test and ship an MCP server on the official SDKs: Python mcp 2.3.0 and TypeScript @modelcontextprotocol/server 2.3.1, with tools, resources, prompts, MCP Inspector, Claude Desktop, Claude Code and VS Code config, stateless HTTP, and packaging.
15 minOct 20, 2026How to Write a Blameless Postmortem: Template and Examples (2026)
A step-by-step guide to writing a blameless postmortem: when one is required, building the timeline from evidence, contributing factors instead of one root cause, why the 5 Whys misleads, owned action items, the review meeting, and a copy-paste markdown template.
15 minOct 20, 2026How to Set Up Backstage as an Internal Developer Portal (2026)
Step-by-step Backstage 1.55 setup for 2026: create-app on Node 22 or 24, PostgreSQL, GitHub sign-in, catalog-info.yaml, software templates, TechDocs, a Kubernetes deploy with the official Helm chart, alternatives, and fixes for common errors.
14 minOct 20, 2026How to Set Up Argo CD for GitOps: Step-by-Step Guide (2026)
Install Argo CD 3.5.5 with Helm chart 10.10.5, structure a GitOps repo, bootstrap with app-of-apps and ApplicationSet, configure sync policies, waves and hooks, add SSO and RBAC, deploy Helm and Kustomize apps, and fix OutOfSync, Degraded and ComparisonError.
14 minOct 20, 2026AI Agent Failures in Production: 5 Incidents, 14 Failure Modes (2026)
What actually goes wrong when AI agents run in production: the Replit, Amazon Kiro, PocketOS and PromptPwnd incidents, the MAST taxonomy of 14 failure modes from 1,642 traces, cost loops, permission mistakes, and the guardrails that stopped them.
12 min