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WIP: Add SNS topic to Platform Module #392

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WIP: Add SNS topic to Platform Module #392

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WIP: Add SNS topic to Platform Module
mjburling Feb 12, 2026
148c58c
Merge branch 'main' into wip-sns-topic-for-slack-alarms
mianava Jun 3, 2026
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2 changes: 2 additions & 0 deletions terraform/modules/platform/README.md
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Expand Up @@ -118,6 +118,7 @@ No modules.
| [aws_s3_bucket.logs_to_splunk](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/s3_bucket) | data source |
| [aws_security_group.this](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/security_group) | data source |
| [aws_security_groups.this](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/security_groups) | data source |
| [aws_sns_topic.cloudwatch_alarms](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/sns_topic) | data source |
| [aws_ssm_parameter.platform_cidr](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/ssm_parameter) | data source |
| [aws_ssm_parameters_by_path.ssm](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/ssm_parameters_by_path) | data source |
| [aws_subnet.private](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/subnet) | data source |
Expand Down Expand Up @@ -157,6 +158,7 @@ No modules.
| <a name="output_secondary_region"></a> [secondary\_region](#output\_secondary\_region) | The secondary data.aws\_region object associated with the secondary region. |
| <a name="output_security_groups"></a> [security\_groups](#output\_security\_groups) | Map of current VPC's common [aws\_security\_group data sources](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/security_group#attribute-reference), keyed by `name` |
| <a name="output_service"></a> [service](#output\_service) | The name of the current service or terraservice. |
| <a name="output_sns_topic_slack_alarms"></a> [sns\_topic\_slack\_alarms](#output\_sns\_topic\_slack\_alarms) | SNS topic managed by CDAP for alarm action that publishes to Slack |
| <a name="output_splunk_logging_bucket"></a> [splunk\_logging\_bucket](#output\_splunk\_logging\_bucket) | Bucket created by the CMS Hybrid Cloud team where logs are ingested into Splunk |
| <a name="output_ssm"></a> [ssm](#output\_ssm) | SSM parameter resources available based on the `var.ssm_root_map` input variable. |
| <a name="output_vpc_id"></a> [vpc\_id](#output\_vpc\_id) | The current environment VPC ID value |
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5 changes: 5 additions & 0 deletions terraform/modules/platform/main.tf
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Expand Up @@ -157,3 +157,8 @@ data "aws_kms_alias" "secondary" {

name = "alias/${local.app}-${local.parent_env}"
}


data "aws_sns_topic" "cloudwatch_alarms" {
name = "${local.app}-${local.parent_env}-cloudwatch-alarms"
}
Comment on lines +162 to +164

@mianava mianava Jun 3, 2026

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I don't think these are configured by default by CDAP at the moment so this could present issues with running the platform module and seeing no return. We could add the sns topic creation alongside module "sns_to_slack_queue" { and remove the establishment via the APIs, replacing with a platform module call

5 changes: 5 additions & 0 deletions terraform/modules/platform/outputs.tf
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Expand Up @@ -149,6 +149,11 @@ output "splunk_logging_bucket" {
value = data.aws_s3_bucket.logs_to_splunk
}

output "sns_topic_slack_alarms" {
description = "SNS topic managed by CDAP for alarm action that publishes to Slack"
value = data.aws_sns_topic.cloudwatch_alarms
}

output "account_env_suffix" {
description = "[\"prod\" or \"non-prod\"] The AWS account shorthand to distinguish environment hierarchy."
sensitive = false
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