SRE
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Cloud or On-Prem: What an SRE Checks Under the Service
The platform is your largest dependency. What an SRE verifies on a cloud or in a data center: failure domains, control planes, quotas, capacity, upkeep.
SRE in the Codebase: Timeouts, Retries, and Alerts as Code
Reliability is decided in the repository. What an SRE reviews in application code: timeouts, retries, health checks, rollouts, and burn-rate alerts as code.
SLI, SLO, SLA, Error Budget: The Numbers SRE Runs On
An SLI is what you measure, an SLO is the target, an SLA is the contract, and the error budget is the gap you may spend. The arithmetic, shown on AWS.
What an SRE Does: The Job Behind the Title
Site reliability engineering is software engineering applied to operations. What an SRE owns, what they watch, and how the role differs from DevOps.