Support More Character Types in Resource Names

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Tell us about your request

Support more character types in resource names.

Image Builder resources are currently restricted to 128 alphanumeric, space, and dash characters. We'd like it expanded to include periods and other symbols.

Matching what's allowed for IAM role names would be preferred (alphanumerics and _+=,.@-).

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-iam-role.html#cfn-iam-role-rolename

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

We'd like to be able to have a human-friendly "fully-qualified" name for AWS resources. For example, suppose a service is organized hierarchically by:

1. Stage
2. Region
3. Cell

We'd like to name a resource my-service.us-east-1.cell-0.resource-name, where period is used as the separator between level fragments.

Using fully qualified names lets us deploy multiple copies of a service into the same account during development (e.g. have cell 0 and cell 1 in the same personal development account).

Are you currently working around this issue?

Using space as the fragment separator (e.g. my-service us-east-1 cell-0 resource-name).

This is fine, but we'd like to use a consistent separator across all AWS resources.