Amazon ECS now enforces software version consistency for containerized applications
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Amazon ECS now enforces software version consistency for containerized applications to ensure all tasks in an application are identical and launched with the correct image, even if a mutable image tag like 'LATEST' is used.
Specifically, the article covers:
- Amazon ECS resolves container image tags to image digests (SHA256 hash) when deploying service updates
- All tasks in the service are launched with the same image digest, ensuring consistency
- This prevents unintentional deployment of different versions when using mutable image tags
- The feature is enabled by default for new/updated services on AWS Fargate and ECS Agent v1.70.0+
- Consistency enforced in all commercial and AWS GovCloud (US) regions
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