Question

You are writing a security group resource that must produce a variable number of nested `ingress` blocks based on a list of port objects passed as `var.ingress_rules` (each with `port` and `cidr` attributes). You want to avoid hardcoding repeated `ingress { ... }` blocks. Which construct correctly generates the nested blocks?

Accepted Answer

A `dynamic "ingress"` block with a `for_each = var.ingress_rules` and a `content` block referencing `ingress.value.port` and `ingress.value.cidr`

Answer

A `count = length(var.ingress_rules)` meta-argument on the security group resource, indexing rules with `count.index`

Answer

A single `ingress` block using `for_each = var.ingress_rules` directly inside the block body

Answer

A `dynamic "ingress"` block with `for_each = var.ingress_rules` and a `content` block referencing `each.value.port` and `each.value.cidr`