Tweak environment flags

[janelletavares]

Description of change

The current format for a config flag (and metadata) can be a bit error prone, so switching that to a string array format.

Also, introducing default values for environment create flags.

If we like it, can consider rolling out to other commands.

Fixes

Type of change

• New feature
• Bug fix
• Refactor
• Documentation

How was this tested?

• [X ] Unit Tests
• Tested in staging

Demo

Before this pull-request

Flags:
  -c, --config string     environment configuration based on type and provider (e.g.: --config '{"aws_access_key_id":"my_access_key", "aws_secret_access_key":"my_secret_access_key"}')

After this pull-request

Flags:
  -c, --config strings    environment configuration based on type and provider (e.g.: --config aws_access_key_id=my_access_key --config aws_access_secret=my_access_secret)

[raulb]

@janelletavares changes on --config look great.

I've got some questions on the default value (one of them being that I miss where we make use of it). Do you mind opening a separate PR only making the change of --config so we can iterate on each one independently? Thank you 🙏

[raulb]

This should be extracted in some point as part of builder, once we change how config flags are used in other commands, but I think it's fine we leave it here for now.

[janelletavares]

@janelletavares changes on --config look great.

I've got some questions on the default value (one of them being that I miss where we make use of it). Do you mind opening a separate PR only making the change of --config so we can iterate on each one independently? Thank you pray

The ConfigSlice support is something I pulled out of my champagne day PR, and defaults was in there as well and when I started it felt relevant so I also copied it over. But, after testing, I removed using the defaults for the environment create command because it wasn't producing reasonable behavior with the prompt. However, having it as an option in general does seem nice, reduces some looking up of valid values and some typing and therefore opportunities for error, so i didn't delete all of it. i will open a separate PR for that. Thanks for looking!

[raulb]

👍 thank you!