Describe your idea/feature/enhancement

Allow specification of parameters that should apply to all (or multiple) environments in AWS SAM CLI configuration file (samconfig.toml).

This would be similar to the global keyword introduced in response to issue #2382, which allowed specifying parameters that should apply to all sam commands.

Proposal

Perhaps the simplest approach would be to introduce another key-character or keyword to use in the position where an environment name is specified - one that indicates the stanza should apply to all environments. I personally like *, but I it might also make sense to reuse the same global keyword.

Examples ...

[*.deploy.parameters]
confirm_changeset = true
region = "us-west-2"
s3_bucket = "some-bucket-name"

[global.deploy.parameters]
confirm_changeset = true
region = "us-west-2"
s3_bucket = "some-bucket-name"

A more complex, but also more powerful approach could be to allow the use of a regular expression or a glob expression, such that one could specify some, but not necessarily all environments to which a stanza should apply.

Examples ...

[^dev\d+$.deploy.parameters]
confirm_changeset = true
region = "us-west-2"
s3_bucket = "some-bucket-name"

[dev*.deploy.parameters]
confirm_changeset = true
region = "us-west-2"
s3_bucket = "some-bucket-name"

Additional Details

In the last comment on issue #2382, @dunika seemed to be asking for this feature, and his comment received several 👍s, but there are otherwise no responses.