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HomeDesigning and Implementing Microsoft DevOps Solutions (AZ-400)Deployment strategies — quick notes
Quick Notes104 words

Deployment strategies — quick notes

Deployment strategies — quick notes

PatternPurpose
Blue-greenTwo environments, atomic switch, instant rollback
CanarySmall traffic slice first
Ring / progressive exposureWidening audiences over time
A/B testingMeasurement, not safety
Feature flagsDecouple release from deployment; kill switch

Traps

  1. A/B testing offered as a risk-reduction answer — it is a product experiment.
  2. blueGreen / ringed as strategy: keywords — they do not exist. Only runOnce, rolling, canary.
  3. Fastest rollback for flagged code is turning the flag off, not redeploying.
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