CI/CD Advanced CICD-079 · 19 min

Mutable image tag makes an ECS rollback pull a newer build than the failed release

The rollback logic points at the previous task definition, yet the service still launches the wrong container because both revisions refer to the same mutable image tag.

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The rollback logic points at the previous task definition, yet the service still …

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1 · 원인 분석 2 · 복구 방안 3 · 재발 방지

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Mutable image tag makes an ECS rollback pull a newer build than the failed release

Rollback Lambda succeeds but the Auto Scaling warm pool still serves the failed launch template

Release manifest points at a digest that exists only in the staging registry

A blue-green switch updates the public ALB target group, but internal service discovery still resolves to the blue stack and background jobs keep writing there

A blue-green cutover moves public ingress while internal service discovery stays on the previous stack during a failover rehearsal