Site Reliability Engineering — Reliability-by-Design Mentality

• Focus: System behavior over time

• Strength: Monitoring, automation, self-healing systems

• Approach:

  • Encode operational knowledge into code

  • Measure, detect, and react automatically

  • Minimize toil

• Question asked:

  “How do we make the system fix itself and page humans only for the unknown?”

1. Overview

Site Reliability Engineering (SRE) is a discipline that applies software engineering principles to infrastructure and operations. The goal is to create reliable, scalable, and automated systems by encoding operational knowledge into software.