[ECS][Request]: improve description when Docker Image is not Found

[colinbjohnson]

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Tell us about your request

This feature request (to provide greater clarity when a Docker image is not available) is a UX improvement that will aid issue diagnosis and give the ECS product a more finished feel.

Which service(s) is this request for?

ECS Fargate, possibly ECS.

Tell us about the problem you're trying to solve. What are you trying to do, and why is it hard?

The issue I'm trying to solve is that the error message provided when a Docker Image is not available is not likely to be understood by an ECS user.

Are you currently working around this issue?

Institutional knowledge.

Additional context

Obviously, I made a mistake by trying to launch the latest:latest image but the error message "InternalError: failed to create container model: failed to normalize image reference" is not going to be understood by anyone. If you search for this phrase (failed to normalize image reference) on the Internet you'll see at 1,000+ post.

If you wanted to really have a good user experience you could link to a troubleshooting document or state clearly "the image tag ${image_tag} does not exist in the specified repository".

Attachments

[PeterBocan]

Failed to normalize image reference may mean a lot of different things. Clearer message would be appreciated.

I am also experiencing this issue, but the Image reference is correct. This does not help.

[and-stuber]

This message also is returned on Status reason for Batch jobs. Would be interesting more information for this message or something more clear.