config is invisible to aws-cli due to use of dots

[RemiCardona]

Hi all,

I was in the process of automating my SSO login and was ultimately trying to read aws-adfs configuration from my profile using aws configure get and could NOT, for the life of me, get it to print anything.

$ aws configure get --profile PROFILE adfs_config.adfs_user 
$

After much screaming and cursing, I dug into aws-cli and basically found this:

https://github.com/aws/aws-cli/blob/2.32.17/awscli/customizations/configure/get.py#L58

TL;DR aws configure considers dots as separators for configuration sections, so aws-adfs configuration keys cannot be queried using aws-cli.

Various solutions include:

1. replacing dots with underscores in the config keys

[profile PROFILE]
region = us-west-1
adfs_config_adfs_user = remi.cardona@example.com
...

2. using sections as supported by .aws/config:

[profile PROFILE]
region = us-west-1
adfs_config =
  adfs_user = remi.cardona@example.com

That last one seems the "prettiest", though I would suggest using botocore to read the configuration (instead of python's configparser directly):

https://github.com/boto/botocore/blob/develop/botocore/configloader.py#L183

Thanks!