SkillCoded

CI/CD

Rolling, Blue-Green, and Canary Releases

Choose rolling, blue-green, or canary release behavior from service risk, capacity, traffic control, observation quality, and recovery needs.

Intermediate14 min read
CI/CD lessonDelivery and reliability foundationsPractice

UNTIMED COACHING

Practice before the pressure

Use feedback to correct the model, not merely memorize an option position.

GUIDED PRACTICE

Practice the lesson questions

Answer normal lesson questions without a timer. Every answer includes an explanation, and incorrect answers can be tried again before continuing.

CONCEPT MODELS

See the lesson as a system

Use these visual guides to connect the key ideas before answering the questions.

Connect the roles in Rolling, Blue-Green, and Canary ReleasesKeep existing version, candidate version, rolling update, and canary evaluation as separate service roles.
Connect the roles in Rolling, Blue-Green, and Canary ReleasesA topic-specific model connects four distinct roles used to reason about rolling, blue-green, and canary releases.
Existing packagePackage serves the current user traffic
Candidate packagePackage contains the reviewed ranking change
Rollout processProcess replaces instances by increments
Canary groupGroup receives limited production traffic first
Verify Rollback signalConnect rollback signal with its topic-specific inspection, expected outcome, and protected delivery boundary.
Verify Rollback signalA verification model for rolling, blue-green, and canary releases connects the final service decision to its check, result, and protected boundary.
Rollback signalSignal stops expansion and restores baseline
Starting checkInspect rollback signal
Expected resultConfirm rollback signal
Safety boundaryProtect existing package scope