ephemeral resource: add google_compute_ssl_certificate and google_compute_region_ssl_certificate support

[avinashpancham]

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Description

We would like to use the new feature "ephemeral resources" for the resources google_compute_ssl_certificate and google_compute_region_ssl_certificate to prevent storing sensitive values for the attributes certificate and private key in the raw state as plain text

The Terraform docs for this resource state:

All arguments including the following potentially sensitive values will be stored in the raw state as plain text: certificate, private_key. [Read more about sensitive data in state](https://www.terraform.io/language/state/sensitive-data).

I would be open to help create this resource, I would need some guidance though.

New or Affected Resource(s)

• google_compute_ssl_certificate
• google_compute_region_ssl_certificate

Potential Terraform Configuration

ephemeral "google_compute_ssl_certificate" "this" {
  name            = "foo"
  private_key = "pvt-key-string"
  certificate    = "cert-string"
}

ephemeral "google_compute_regon_ssl_certificate" "this" {
  name            = "foo"
  region          = "europe-west4"
  private_key = "pvt-key-string"
  certificate    = "cert-string"
}

References

https://www.hashicorp.com/blog/terraform-1-10-improves-handling-secrets-in-state-with-ephemeral-values
https://developer.hashicorp.com/terraform/language/resources/ephemeral

[rileykarson]

Note: Forwarding exempt until we add docs for self-service contributors to add ephemeral resource support

[avinashpancham]

What are the timlines to allow contributions?