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fix: use a customer managed KMS key for RDS storage encryption #3

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Merged
sebastiancorrea81 merged 1 commit into from
Jul 28, 2026
Merged

fix: use a customer managed KMS key for RDS storage encryption #3

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22 changes: 22 additions & 0 deletions rds-postgres-server/deployment/main.tf
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Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,27 @@ resource "aws_secretsmanager_secret_version" "master" {
})
}

# ---------------------------------------------------------------------------
# KMS key for RDS storage encryption (customer managed, for parity with the
# Aurora module — the default AWS-managed RDS key works but isn't ours to
# control key policy/rotation on)
# ---------------------------------------------------------------------------

resource "aws_kms_key" "rds" {
description = "Customer managed key for RDS instance storage encryption (${var.instance_name})"
enable_key_rotation = true

tags = {
"managed-by" = "nullplatform"
"service-id" = var.service_id
}
}

resource "aws_kms_alias" "rds" {
name = "alias/nullplatform-rds-${var.instance_name}"
target_key_id = aws_kms_key.rds.key_id
}

# ---------------------------------------------------------------------------
# RDS instance
# ---------------------------------------------------------------------------
Expand All @@ -83,6 +104,7 @@ resource "aws_db_instance" "main" {
allocated_storage = var.allocated_storage
storage_type = "gp3"
storage_encrypted = true
kms_key_id = aws_kms_key.rds.arn

db_name = "postgres"
username = "master"
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