[Bug]: r/aws_opensearch_domain: omitting auto_tune_options.rollback_on_disable causes creation failure

[jar-b]

Terraform Core Version

1.8.1

AWS Provider Version

5.47.0

Affected Resource(s)

• aws_opensearch_domain

Expected Behavior

As the auto_tune_options.rollback_on_disable argument is optional, the domain should create successfully when omitted.

Actual Behavior

Domain creation fails.

Relevant Error/Panic Output Snippet

│ Error: modifying config for OpenSearch Domain: ValidationException: 1 validation error detected: Value '' at 'autoTuneOptions.rollbackOnDisable' failed to satisfy constraint: Member must satisfy enum value set: [DEFAULT_ROLLBACK, NO_ROLLBACK]

Terraform Configuration Files

terraform {
  required_providers {
    aws = {
      source = "hashicorp/aws"
      version = "5.47.0"
    }
  }
}

provider "aws" {}

resource "aws_opensearch_domain" "main" {
  domain_name    = "jb-test"
  engine_version = "Elasticsearch_7.10"

  cluster_config {
    instance_type  = "r5.large.search"
    instance_count = 1
  }

  encrypt_at_rest {
    enabled = true
  }

  domain_endpoint_options {
    enforce_https       = true
    tls_security_policy = "Policy-Min-TLS-1-2-2019-07"
  }

  node_to_node_encryption {
    enabled = true
  }

  ebs_options {
    ebs_enabled = true
    volume_size = 50
  }

  auto_tune_options {
    desired_state = "DISABLED"
    # rollback_on_disable = "NO_ROLLBACK"
  }
}

Steps to Reproduce

1. Copy the configuration above.
2. terraform init
3. terraform apply
4. Observe failure

Debug Output

No response

Panic Output

No response

Important Factoids

No response

References

• https://docs.aws.amazon.com/opensearch-service/latest/APIReference/API_UpdateDomainConfig.html
• https://docs.aws.amazon.com/opensearch-service/latest/APIReference/API_AutoTuneOptions.html

Would you like to implement a fix?

None

[github-actions]

Community Note

Voting for Prioritization

• Please vote on this issue by adding a 👍 reaction to the original post to help the community and maintainers prioritize this request.
• Please see our prioritization guide for information on how we prioritize.
• Please do not leave "+1" or other comments that do not add relevant new information or questions, they generate extra noise for issue followers and do not help prioritize the request.

Volunteering to Work on This Issue

• If you are interested in working on this issue, please leave a comment.
• If this would be your first contribution, please review the contribution guide.

[github-actions]

Warning

This issue has been closed, meaning that any additional comments are hard for our team to see. Please assume that the maintainers will not see them.

Ongoing conversations amongst community members are welcome, however, the issue will be locked after 30 days. Moving conversations to another venue, such as the AWS Provider forum, is recommended. If you have additional concerns, please open a new issue, referencing this one where needed.

[github-actions]

This functionality has been released in v5.49.0 of the Terraform AWS Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!

[github-actions]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.
If you have found a problem that seems similar to this, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.