4 Non-obvious learnings from working with alerts
Alerting is a details game. Nobody gets paged by their intent — they get paged by the exact query they wrote. If you want to sleep through the night…
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Pushgateway Heartbeat Gotcha: When ndots and NetworkPolicy Silently Eat Your Alerts
A CronJob exits 0, Pushgateway shows a heartbeat metric that hasn't updated in days, and Prometheus fires nothing. Every dashboard is green while th…
Prometheus Alternative for a Small SaaS Custom Metrics Dashboard
Short answer: For a beginner building a small SaaS custom metrics dashboard, I would start with a push API for app-level metrics; I would keep Prome…
Kubernetes: Monitoring the Cluster with Prometheus
🇧🇷 Leia a versão em português aqui. Once a Kubernetes cluster is up and running, monitoring what's happening inside it — CPU and memory usage, numbe…
Prometheus Agent Mode vs Grafana Alloy: Choosing the Right Push Agent in 2026
TL;DR: If you only collect metrics, Prometheus Agent mode is lightweight, familiar, and difficult to beat. If you collect metrics, logs, or traces t…
Prometheus Alerting Rules That Don't Cry Wolf
The fastest way to get a team to ignore Prometheus is to point an alert at up == 0 and ship it. Week one it catches a real outage and everyone's imp…
SLO Alerting with OpenTelemetry and Prometheus
Implementing SLO-Based Alerting with OpenTelemetry and Prometheus The Problem In microservices architectures, distributed tracing and monitoring are…
A Grafana dashboard for Claude Code on Prometheus
Claude Code emits OpenTelemetry metrics over OTLP. Anthropic publishes the metric names. So all that was missing, if you run a Prometheus-compatible…
I Built a CLI That Writes Its Own Docker Config — Then Taught It to Say No
Every time I set up a stack from scratch I'd end up touching at least four files: docker-compose.yml , nginx.conf , a .env file, maybe a Makefile .…
SwiftDeploy: Building a Self-Governing Deployment Tool with OPA, Prometheus, and a Single YAML File
Series: Firstly,, I built the engine (manifest → rendered nginx + compose, gated lifecycle). Then I added the eyes (Prometheus /metrics ) and the br…