Canary Deployment - CI/CD Glossary Definition
A canary deployment releases a new version to a small fraction of traffic or users first, watches its metrics, and only then rolls it out to everyone. If the canary misbehaves, it is pulled before most users are affected.
Versus blue-green
A canary shifts traffic gradually and judges health along the way; blue-green flips all traffic between two full environments at once. Canaries limit the impact of a bad release during the rollout itself.
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