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adding kms policy for dynamo external write #227

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Merged
TOEL2 merged 1 commit into from
Jul 10, 2025
Merged

adding kms policy for dynamo external write #227

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22 changes: 22 additions & 0 deletions infrastructure/stacks/api-layer/iam_policies.tf
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,20 @@ data "aws_iam_policy_document" "dynamodb_write_policy_doc" {
}
}

# Specific Dynamo resource KMS access policy
data "aws_iam_policy_document" "dynamo_kms_access_policy_doc" {
statement {
actions = [
"kms:Encrypt",
"kms:Decrypt",
"kms:GenerateDataKey"
]
resources = [
module.eligibility_status_table.dynamodb_kms_key_arn
]
}
}

# Attach dynamoDB write policy to external write role
resource "aws_iam_role_policy" "external_dynamodb_write_policy" {
count = length(aws_iam_role.write_access_role)
Expand All @@ -29,6 +43,14 @@ resource "aws_iam_role_policy" "external_dynamodb_write_policy" {
policy = data.aws_iam_policy_document.dynamodb_write_policy_doc.json
}

# Attach dynamo KMS policy to external write role
resource "aws_iam_role_policy" "external_kms_access_policy" {
count = length(aws_iam_role.write_access_role)
name = "KMSAccessForDynamoDB"
role = aws_iam_role.write_access_role[count.index].id
policy = data.aws_iam_policy_document.dynamo_kms_access_policy_doc.json
}

# Policy doc for S3 Rules bucket
data "aws_iam_policy_document" "s3_rules_bucket_policy" {
statement {
Expand Down