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Concept guides/Dependencies and deploys/Deploys, rollouts & flags

CodingDependencies and deploys

Deploys, rollouts & flags

Medium3 min read

Questions it teaches

Error rate spike after deployEasy15 min Invalid configuration blocks startupEasy15 min Some photo uploads fail since this morningEasy15 min Hundreds of orders go through at zero dollarsEasy15 min Checkout latency spikes after deployMedium30 min Canary blind to currencyMedium30 min Timeout reduction triggers retry stormMedium30 min Memory leak in per-connection cacheMedium30 min

Related

Dependencies and deploys Observability Incident response Capacity and traffic Databases in production

Builds on: Observability

Cron failures (silent drops)3 min A/b variant regression4 min

Leads to: Incident response

A restore that stalls4 min CDN time-to-live (TTL)3 min

Related: Capacity and traffic

Log volume management3 min Queue backlog4 min

Related: Databases in production

Database disk saturation (IOPS)3 min Database unreachable3 min

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