Operations

53 posts tagged operations.

Oct 20, 2026

Platform Engineering vs DevOps vs SRE in 2026: 90% Now Have a Platform

Platform engineering vs DevOps vs SRE explained for 2026: what each one is, how Team Topologies and the CNCF define platforms, what DORA 2024 and 2025 measured (90% platform adoption, 76% with platform teams), and when a platform team is premature.

13 min
Oct 20, 2026

What Is AIOps? A Plain-English Explainer for 2026

What AIOps means in 2026: Gartner coined it in 2016 and renamed the market Event Intelligence Solutions in 2025. How event correlation, anomaly detection and LLM agents for root cause analysis work, the vendors, and where each layer succeeds or fails.

13 min
Oct 20, 2026

Vulnerability Management in 2026: 48,185 CVEs, a Triaged NVD, EPSS v5

Vulnerability management in 2026 explained: 48,185 CVEs in 2025, 67,000+ by September 2026, an NVD that now enriches only KEV and critical software, the CVE funding scare, EPSS v5, CISA KEV at 1,748 entries, VEX and reachability, and a prioritisation order that works.

12 min
Oct 20, 2026

TLS Certificate Lifetimes in 2026: 200 Days Now, 47 Days by 2029

CA/Browser Forum ballot SC-081 cut public TLS certificates to 200 days on 15 March 2026, then 100 days in 2027 and 47 days in 2029. What changed, what Let's Encrypt did (no OCSP, 6-day certs, ACME profiles, 45 days), and how ARI keeps renewals safe.

11 min
Oct 20, 2026

How to Fix Terraform 'Error acquiring the state lock' (2026)

Fix Terraform's Error acquiring the state lock safely: read the Lock Info, wait with -lock-timeout, force-unlock, clear stale S3 .tflock and DynamoDB locks, then repair state with moved and removed blocks, refresh-only plans and S3 version restores.

13 min
Oct 20, 2026

Terraform State in 2026: S3 Locking Replaced DynamoDB, What Else Changed

What Terraform state is and how to run it in 2026: S3 native locking with use_lockfile (GA in 1.11, DynamoDB deprecated), backend choices, HCP Terraform per-resource pricing, OpenTofu state encryption, secrets in state, splitting state and Stacks.

13 min
Oct 20, 2026

SRE for LLM Apps in 2026: SLOs for TTFT, Provider Outages and Evals

How to apply Google SRE practice to LLM applications in 2026: SLIs for TTFT and time per output token, availability when your model provider had 15 major API incidents in 72 days, eval-based quality SLIs, error budgets that count fallbacks, and rate limits.

13 min
Oct 20, 2026

How to Set Up SLO Burn Rate Alerts in Prometheus: Sloth, Pyrra (2026)

Step-by-step: define an SLI, write Prometheus recording rules, build multiwindow multi-burn-rate alerts (14.4x and 6x pages, 3x and 1x tickets), unit test them with promtool, generate them with Sloth or Pyrra, and fix noisy SLO alerts.

15 min
Oct 20, 2026

How to Reduce Alert Fatigue with Alertmanager: Step-by-Step (2026)

A practical guide to cutting alert noise with Prometheus and Alertmanager v0.34: measure noise, alert on symptoms, set severity labels, then configure routing, grouping, inhibition, silences and time intervals, and fix Alertmanager not sending notifications.

15 min
Oct 20, 2026

Prompt Management in 2026: Registries, Rollbacks and Five Acquisitions

How to version, deploy and roll back LLM prompts like code in 2026: Git vs Langfuse, PromptLayer, Braintrust and MLflow registries, labels and aliases, eval gates in CI, and what the Langfuse, Promptfoo, Helicone, Galileo and Humanloop deals mean for your stack.

13 min
Oct 20, 2026

How to Fix Prometheus High Cardinality: Find and Drop Series (2026)

Step-by-step guide to finding and fixing high cardinality in Prometheus 3.x: the TSDB status page and API, topk count by __name__, promtool tsdb analyze, metric_relabel_configs drop rules, native histograms, recording rules, sample_limit guardrails and Prometheus OOM fixes.

13 min
Oct 20, 2026

Progressive Delivery in 2026: Feature Flags vs Canary vs Blue-Green

Feature flags, canary releases and blue-green deployments compared for 2026: OpenFeature is still CNCF incubating with spec v0.9, flagd 0.18 changed its hashing, OpenAI bought Statsig, and the Google Cloud, Cloudflare and CrowdStrike outages show what unflagged changes cost.

13 min
Oct 20, 2026

Observability vs Monitoring: What's the Difference in 2026?

Observability vs monitoring explained for 2026: the SRE-book definition of monitoring, where observability came from, three pillars vs wide events, what OpenTelemetry does, and what Grafana's 2026 survey of 1,363 teams says about cost and tools.

13 min
Oct 20, 2026

How to Build Multi-Region Failover with Route 53 and Cloud DNS (2026)

Step-by-step multi-region failover: active-passive vs active-active, Route 53 health checks and failover records in Terraform, ARC routing controls, Cloud DNS failover policies, Aurora Global Database and Spanner, failover testing, and fixes for DNS TTL and caching problems.

16 min
Oct 20, 2026

How to Migrate From ingress-nginx to Gateway API: Step-by-Step (2026)

A tested, step-by-step ingress-nginx to Gateway API migration: inventory annotations, install Gateway API v1.6.3 and Envoy Gateway v1.9.2, convert with ingress2gateway v1.2.0, handle TLS, rewrites and canaries, read route status conditions, cut over with DNS and roll back.

13 min