AWS ElastiCache Memcached Cluster with Encrypt in Transit enabled

[shonigbaum]

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Description

I wanted to create a AWS ElastiCache Memcached Cluster with "Encrypt in Transit" enabled (https://aws.amazon.com/about-aws/whats-new/2022/05/amazon-elasticache-memcached-supports-encryption-data-transit/?nc1=h_ls). This is possible in the AWS Management Console or the awscli (https://docs.aws.amazon.com/cli/latest/reference/elasticache/index.html).

Can you implement it? Or is it somehow possible in another way? I only found the resource aws_elasticache_replication_group, but I think this is only for Redis?

New or Affected Resource(s)

• aws_elasticache_cluster

References

• https://docs.aws.amazon.com/cli/latest/reference/elasticache/index.html
• https://aws.amazon.com/about-aws/whats-new/2022/05/amazon-elasticache-memcached-supports-encryption-data-transit/?nc1=h_ls

[nitrotm]

Sounds like this flag is now supported by API and could be implemented by the tf provider (see discussion in #2823):

https://docs.aws.amazon.com/AmazonElastiCache/latest/APIReference/API_CreateCacheCluster.html

TransitEncryptionEnabled

    A flag that enables in-transit encryption when set to true. You cannot modify the value of TransitEncryptionEnabled after the cluster is created. To enable in-transit encryption on a cluster you must set TransitEncryptionEnabled to true when you create a cluster.

    Required: Only available when creating a cache cluster in an Amazon VPC using Memcached version 1.6.12 or later.

[prashanthaitha24]

When is this flag going to be available?

[michaelrechani]

Is in-transit encryption available for memcached when deploying via Terraform yet?

[github-actions]

This functionality has been released in v5.16.0 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!

[alex-k-verkada]

This might be a dumb question, but is it possible to bring this change to v4 provider as well?

[jar-b]

Hey @alex-k-verkada - not a dumb question at all. At this time our policy is to limit back ported changes to security vulnerabilities, which does not apply here. Additional context can be found in our contributing guide here:

https://hashicorp.github.io/terraform-provider-aws/faq/#once-a-major-release-is-published-will-new-features-and-fixes-be-backported-to-previous-versions

[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.