Merge pull request #11 from UKHomeOffice/fix-users-type

Fix users type for IAM policy attachment

main.tf

@@ -339,6 +339,6 @@ EOF
 
 resource aws_iam_policy_attachment "msk_iam_policy_attachment" {
   name       = "${var.name}-policy-attachment"
-  users      = aws_iam_user.msk_iam_user.name
+  users      = [aws_iam_user.msk_iam_user.name]
   policy_arn = aws_iam_policy.msk_iam_policy.arn
 }