# observability

An introduction to Envoy Proxy's architecture — listeners, clusters, filters, and the xDS dynamic configuration API. Covers static configuration for standalone use and how Envoy fits into service meshes like Istio.

How to use Istio's built-in observability — distributed tracing with Jaeger, Prometheus metrics, Kiali service graph — and enforce zero-trust access control with AuthorizationPolicies.

A practical guide to getting started with Istio — installing on Kubernetes, enabling automatic mTLS, configuring VirtualServices for traffic management, and understanding the sidecar injection model.

A practical guide to sizing Elasticsearch clusters for production — covering node roles, shard counts, heap tuning, and capacity planning formulas.

Configure Envoy distributed tracing with Jaeger, expose Prometheus metrics, and build end-to-end observability for your service mesh.

Deploy and use Grafana Loki for Kubernetes log aggregation — Promtail config, LogQL queries, log-based alerts, and cost-effective storage setup.

Build a production Prometheus and Grafana monitoring stack from scratch — service discovery, recording rules, alerting, and dashboards.

PromQL cheat sheet with copy-paste query examples for rates, aggregations, histograms, label matching, recording rules, and alerting expressions.

Leverage Istio's built-in observability — Kiali service graph, Jaeger distributed tracing, Prometheus metrics, and Grafana dashboards for your service mesh.

Deploy Grafana Loki and Promtail for cost-effective, scalable log aggregation — without indexing yourself into bankruptcy.

Deploy and configure the OpenTelemetry Collector to unify traces, metrics, and logs into a single pipeline — with production-tested patterns.

Design Prometheus alerting rules that catch real incidents and ignore noise — practical patterns from years of on-call experience.

Build Grafana dashboards that surface real signals instead of decorating walls — a structured approach rooted in SRE principles.

A structured, blameless postmortem process with a ready-to-use template — built from real SRE incident patterns and Google SRE book principles.

A step-by-step guide to implementing SLOs and error budgets using Prometheus — from defining SLIs to building burn-rate alerts.