メモ terraform v0.12.6以降 resource "aws_iam_group_policy_attachment" "foo_attach" { for_each = toset([ "arn:aws:iam::aws:policy/AmazonDynamoDBFullAccess", "arn:aws:iam::aws:policy/AmazonEC2ContainerRegistryFullAccess", "arn:aws:iam::aws:p…