Devise engineering operation DNS specification

[jrcasso]

The latest build of develop has broken due to hosted-zone DNS incompatibilities between this application repository and other, private repositories.

Error: error deleting Route53 Hosted Zone (Z10119153JUFTJ7KUFK46): HostedZoneNotEmpty: The specified hosted zone contains non-required resource record sets  and so cannot be deleted.
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78 | status code: 400, request id: 8fd5e0b9-a97e-42b6-bc3a-6752fd7fc3b9

Personal infrastructure has grown beyond the scope of this application and now needs its own repository and accompanying Terraform configuration.

[jrcasso]

[jrcasso]

An organization has many operations.
An operation has many applications.

The effective definition of an "organization" in this design is simply some DNS zone under our control. Typically that will be a root domain, but it can also be subdomains.

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Separate private repositories have been produced as a result of research and work into this issue:

• terraform-aws-applications: networking infrastructure for an application meeting these specifications. Tiny-sized.
• terraform-aws-operations: networking infrastructure for an operations meeting these specifications. Medium-sized.
• k8s-cluster: an application implementing terraform-aws-application to establish an idempotent deployment of an application Kubernetes cluster as defined in the green block in section 3.

[jrcasso]

Might consider just upgrading this to an IPv6 scheme.

[jrcasso]

The infrastructure scheme underlying this structure has been deployed; helm has been added to this project.

[jrcasso]

https://github.com/jrcasso/terraform-aws-organizations

https://github.com/jrcasso/terraform-aws-operations

https://github.com/jrcasso/terraform-aws-applications

[jrcasso]

Added a bonus organizations infrastructure module. Under the current paradigm, a domain is associated with an organization. That does not preclude configurations where multiple domains belong to a single organization, or a configuration where this domain can be modified to a subdomain. There should be no loss in the extensibility of this structure.