Prepare maintenance windows and customer communication
A maintenance window is a coordinated business change, not simply a quiet time to deploy. Define customer impact, decision authority, rollback limits, and update messages before agreeing when the work may proceed.
Read MoreOperate certificates and domains without last-minute surprises
Certificate renewal and domain renewal are different responsibilities. Build an ownership record, verify the certificate actually served, and test recovery paths before a deadline turns a routine dependency into a customer-facing disruption.
Read MoreChoose cache invalidation rules before adding a cache
A cache adds a second place from which customers may receive data. Decide acceptable staleness, identity boundaries, invalidation triggers, and failure behavior before using faster responses as the main acceptance criterion.
Read MoreHandle background jobs with visible retry boundaries
Background work needs a visible end to automatic recovery. Define retry eligibility, duplicate protection, attempt limits, and an operator decision for jobs that cannot finish safely within their useful lifetime.
Read MorePlan capacity around workload rather than headline users
A registered-user total is a weak capacity specification. Describe the work people and automated tasks create, test representative bursts, and define the service boundary that matters before approving a larger operating budget.
Read MoreDefine health checks that reflect real service readiness
A responding process may still be unable to serve useful requests. Separate startup, liveness, and readiness decisions, then test dependency failures and recovery behavior before using health checks to control traffic.
Read MoreManage secrets without putting them in deployment logs
A deployment log should explain what happened without becoming a second store of credentials. Review the entire secret path, distinguish audit metadata from secret values, and prepare a response for accidental disclosure.
Read MoreReview configuration drift before changing application code
An unchanged application can behave differently after its operating settings change. Compare intended configuration with effective settings, classify approved exceptions, and test a narrow explanation before committing to an application rewrite.
Read MoreSeparate logs metrics and traces during diagnosis
Collecting more telemetry does not automatically answer a diagnostic question. Assign logs, metrics, and traces distinct jobs, connect their context, and choose evidence that helps explain the customer symptom without unnecessary sensitive data.
Read MoreCreate alerts with an owner and a response
An alert deserves attention only when someone can make a useful decision. Connect each notification to customer impact, a responsible role, an escalation path, and a response that can be rehearsed.
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