terraform for_each reference example

for_each_usage_example.tf

resource "aws_iam_policy" "my_node_policy" {
  name = format("node_policy_%s", var.environment)
  policy = jsonencode({
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "ec2:CreateNetworkInterface",
                "ec2:DeleteNetworkInterface",
            ],
            "Resource": "*"
        },
        {
            "Action":"secretsmanager:GetSecretValue",
            "Effect":"Allow",
            "Resource": [
                "${aws_secretsmanager_secret.powerapp_secrets["app_1"].arn}",
                "${aws_secretsmanager_secret.powerapp_secrets["app_2"].arn}"
            ]
        }     
    ]
})
}