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 Detect Runtime Threats with Falco on Kubernetes (2026)
Step-by-step Falco 0.45 setup on Kubernetes: Helm chart 9.2.0 with the modern eBPF driver, default and custom rules, Falcosidekick alerts to Slack, tuning noise, Falco Talon response actions, drop metrics, and a troubleshooting table for driver errors.
15 minOct 20, 2026eBPF Explained (2026): Verifier, CO-RE, Cilium, Tetragon and sched_ext
What eBPF is in 2026 and how it works: the verifier and its 1 million instruction limit, CO-RE and BTF, Cilium 1.20 networking, Tetragon 1.7 enforcement, OBI and the OTel profiler, eBPF for Windows, sched_ext since Linux 6.12, and the real limitations.
11 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, 2026Continuous Profiling in 2026: OTel Profiles Alpha, eBPF Agents, Real Costs
Continuous profiling in 2026 explained: OpenTelemetry Profiles reached public alpha in March, the Elastic-donated eBPF profiler now ships as a Collector, Pyroscope 2.0 and Parca compared, the real overhead numbers, and how profiles turn into cloud savings.
13 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, 2026How to Build an AI Agent With Tool Calling in Python (2026)
Build an AI agent from scratch in Python with the Anthropic Messages API: tool schemas, an agent loop driven by stop_reason, tool errors with is_error, max iterations, token budgets, JSON logs, and a second provider through an OpenAI-compatible API.
19 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 5, 2026Observability in 2026: OpenTelemetry Graduated, the Collector Is Still v0.162, eBPF Instrumentation Is v0.14, and Datadog Bills $1.12B a Quarter
The non-AI state of observability in 2026 from primary sources: OpenTelemetry graduated from CNCF in May with 12,000 contributors from 2,800 companies, yet the Collector distribution is v0.162.0 with mixed component stability, profiles are alpha, messaging conventions are still Development and OBI, the donated Beyla, is v0.14.0. Datadog grew 36 percent to $1.12B in Q2, cost is the top concern for 31 percent of 1,363 surveyed engineers, and the levers that move the bill (tail sampling, OTTL filtering, cardinality limits, columnar storage, Arrow transport) live in the pipeline you run yourself.
13 minOct 5, 2026AIOps in 2026: 47% on ITBench, 10% on Hard On-Call, $6.50 an Investigation, and Four Outages Where the Automation Was the Incident
The incident-response agents of 2026 against the evidence: Datadog Bits AI SRE GA at about 6.5 credits ($6.50) per investigation, PagerDuty's approval-gated SRE Agent, Grafana's six GA agent tools, Splunk's AI SRE, Elastic buying Deductive, Resolve at a $1B headline valuation on $4M ARR, Traversal's $48M; benchmarks from 13.8% on ITBench in 2025 to 47% in May 2026, 20.7% exact root cause on OpenRCA 2.0, 10% on hard ORCA-Bench and 40% hallucinated causes; what the AWS, Azure, Cloudflare and Google postmortems say about automation; and why a human should hold the button.
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