Operations | Monitoring | ITSM | DevOps | Cloud

Cloud infrastructure has never been more reliable in theory. In practice, the last six years of cloud outage history have delivered some of the most disruptive incidents on record. Not because cloud providers got worse, but because the systems built on top of them got larger, more interconnected, and more brittle in ways that don't show up until everything breaks at once.

How to sandbox Claude Code, Codex, and other AI coding agents for production use. Compare local Docker, Daytona, E2B, and Qovery approaches - with architecture diagrams and real-world examples. Romaric founded Qovery to make Kubernetes accessible to every engineering team. He writes about platform strategy, developer experience, and the future of cloud infrastructure.

In the high-stakes world of Online Travel Agencies (OTAs) like Expedia, Hopper, Priceline, and Airbnb, seconds matter. A traveler searching for a "beachfront stay in Hawaii" isn't just looking for a room — they are reacting to weather changes, fluctuating flight prices, and social media trends. Traditional travel platforms often rely on stale data: yesterday's search history or last week's preferences. To truly compete, travel platforms must pivot to Real-Time Context Engineering.

A lot of what's useful in a high-volume log source is a count, a rate, or a measurement — 5xx responses per minute, p95 request duration, job retry rate. You don't need every line to track those. You need the metric. Log-based metrics is now in beta as part of AppSignal Labs.

The fastest incident response teams treat coordination as a craft. Someone owns the call, drives the decisions, and keeps everyone moving in the same direction while the team puts the system back together. That person is the incident commander (IC), and getting the role right is what separates your 15-minute fix from a four-hour war room where nobody’s sure who’s making the call.

A well-instrumented service tells your on-call engineer which deploy broke checkout, which span ate the latency budget, and which line to revert before the support queue fills up. Getting there depends on how cleanly your application performance monitoring layer turns telemetry into answers. The sections ahead walk through how APM works, the metrics and components worth tracking, the cloud-native challenges at scale, and how to evaluate APM tooling against your real workload.

When I started working in IT in the last 90’s, IT performance was always measured by the health of infrastructure: CPU utilization, network latency, server uptime, and for many organizations, little has changed in the last 30+ years. We became very good at keeping systems alive, yet users still struggled to get work done. That disconnect is exactly why Digital Employee Experience (DEX) has emerged as a critical discipline. But DEX on its own is not the end goal.