AWS SNS: Add support for DeliveryPolicy in SNS topic subscriptions

[ddcprg]

Add support for DeliveryPolicy in SNS topic subscriptions.

See [SNS FAQ|https://aws.amazon.com/sns/faqs/] for details: What happens to Amazon SNS messages if the subscribing endpoint is not available?

Terraform Version

All

Affected Resource(s)

• aws_sns_topic_subscription

Expected Behavior

The delivery policy should applied to the SNS subscription if the subscription is HTTP/S. Otherwise, it must be rejected.

Actual Behavior

The attribute delivery_policy is there but is not implemented - only read after resource creation.

References

#2916

[bflad]

The initial implementation of the delivery_policy argument has been merged and will release with version 1.39.0 of the AWS provider, likely middle of next week.

[ghost]

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 feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. Thanks!