Remove provider config

[heathsnow]

what

• Remove the requester/accepter provider configuration from the module.
• Update minimum Terraform version to 0.15.0 (using configuration_aliases wasn't working with 0.14.x)

why

• Provider configuration should always be passed into modules instead of configured within. When the module itself configures the provider(s) then the for_each and count functionality cannot be used with the module which greatly reduces it's utility.

references

• https://github.com/hashicorp/terraform/issues/25120#issuecomment-638496075
• https://github.com/hashicorp/terraform/tree/guide-v0.13-beta/module-repetition#associating-provider-configurations-with-modules
• Closes #48

[nitrocode]

/test all

[nitrocode]

Please update the tests

[heathsnow]

I've addressed the errors that were reported in the tests (ie removing now defunct variables).

[nitrocode]

/test all

[nitrocode]

@heathsnow see https://www.terraform.io/docs/language/modules/develop/providers.html#passing-providers-explicitly

• The tests are failing due to the providers not set on the instantiation of the module in examples/complete/main.tf
• The configuration_aliases should be set for the aws provider in versions.tf

      aws = {
        source                = "hashicorp/aws"
        version               = ">= 2.0"
        configuration_aliases = [ aws.accepter, aws.requester ]
      }

[nitrocode]

/test all

[mergify[bot]]

This pull request is now in conflict. Could you fix it @heathsnow? 🙏

[heathsnow]

I'm closing this draft. No time right now to attend to it.

[heathsnow]

Closing, won't fix.