sre-practices

SLOs and error budgets are defined by establishing SLIs for metrics like latency and availability, then calculating the remaining error budget to govern whether to deploy new features or focus on reliability work.

A blameless postmortem template outlines incident severity levels, assigns specific response roles, and tracks actionable incident items with designated owners and due dates to prevent recurring outages without assigning blame.

Error budgets operationalize deployment decisions by using the remaining or exhausted budget as a clear rule: if the budget is depleted, deployments pause to prioritize reliability work over new features.

Resilience patterns like circuit breakers, bulkheads, retries with backoff, rate limiting, and graceful degradation should be applied to protect production services and maintain availability during partial failures.

An incident response playbook with severity levels is needed when operationalizing reliability targets, ensuring disciplined response roles and blameless action item tracking during production service outages.