resource "aws_appstream_stack" "test" {
  name = "STACK NAME"
}

resource "aws_appstream_user" "test" {
  authentication_type = "USERPOOL"
  user_name = "EMAIL"
}

resource "aws_appstream_user_stack_association" "test" {
  authentication_type = aws_appstream_user.test.authentication_type
  stack_name = aws_appstream_stack.test.name
  user_name = aws_appstream_user.test.user_name
}