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What Is SRE?
Applying software engineering to keep systems reliable.
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AiTechWorlds
AiTechWorlds
Site Reliability Engineering (SRE) applies software engineering to operations to run reliable, scalable systems. This visual guide covers SLIs, SLOs, error budgets, toil reduction, on-call, incident response, and the SRE mindset.
Applying software engineering to keep systems reliable.
SRE was pioneered by Google to run services at scale.
Reliability is a core product requirement.
A Service Level Indicator measures a reliability metric.
A Service Level Objective is your target for an SLI.
An SLA is a contractual promise with consequences.
The allowed amount of unreliability before slowing changes.
Error budgets balance features vs stability.
Repetitive manual work SREs automate away.
Automate operations to reduce toil.
Detect problems before users do.
Metrics, logs, and traces reveal system health.
SREs respond to incidents on rotation.
Detect, mitigate, and resolve outages fast.
Blameless reviews learn from failures.
Ensure systems handle future load.
Test resilience by injecting failures.
SRE is a specific implementation of DevOps ideas.
Latency, availability, errors, and saturation.
Define SLOs for your most important service.
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