feat(cloudsql): Add postgres samples for enterprise & enterprise_plus edition

[ibhaskar2]

Description

Added documentation for cloud sql instance edition

Fixes #

Note: If you are not associated with Google, open an issue for discussion before submitting a pull request.

Checklist

Readiness

• Yes, merge this PR after it is approved
• No, don't merge this PR after it is approved

Style

• My sample follows the rules described for Terraform in the Effective Samples style guide
• My sample follows the other requirements and best practices in the Contributing
  guide

Testing

• I have performed tests described in the Contributing guide:

  • Tests pass: terraform apply
  • Lint pass: terraform fmt check

Intended location

• Yes, this sample will be (or already is) included on cloud.google.com
  Location(s):https://cloud.google.com/sql/docs/editions-intro

• No, this sample won't be included on cloud.google.com
  Reason:

API enablement

• If the sample needs an API enabled to pass testing, I have added the service to the Test setup file

Review

• If this sample adds a new directory, I have added codeowners to the CODEOWNERS file

[snippet-bot]

Here is the summary of changes.

You are about to add 2 region tags.

• cloud_sql/postgres_enterprise_edition_instance/main.tf:18, tag cloud_sql_enterprise_instance
• cloud_sql/postgres_enterprise_plus_edition_instance/main.tf:17, tag cloud_sql_enterprise_plus_instance

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[gericdong]

@ibhaskar2 please fix the lint and test errors when you have a chance. Thanks.

[rogerthatdev]

please add the sample to main.tf file in the cloud_sql/instance_edition/ directory.

[ibhaskar2]

@rogerthatdev please review it, i have made required changes

[msampathkumar]

@ibhaskar2 Almost there! Use mysql_ and postgres_ prefixes in the folder names.

• cloud_sql/enterprise_edition_instance/main.tf --> cloud_sql/mysql_enterprise_edition_instance/main.tf

• cloud_sql/enterprise_plus_edition_instance/main.tf --> cloud_sql/postgres_enterprise_plus_edition_instance/main.tf

This format is for all the cloud_sql samples. Some old samples which don't follow this format, need to be updated as well.

[msampathkumar]

/gcbrun

[msampathkumar]

LGTM.

/gcbrun