Terraform setproduct function with more than two lists

Terraform
1

How to use terraform setproduct function with more than 2 lists in the below scenario or is there any other way to achieve the end result.

In main.tf file I have the following data.

$ cat main.tf
variable "nodes" {
  default = ["1", "2", "3"]
}

variable "ebs_volumes" {
  default = [
    {
      ebs_name = "/dev/xdba"
      ebs_size = "50"
      ebs_type = "gp2"
    },
    {
      ebs_name = "/dev/xdbb"
      ebs_size = "20"
      ebs_type = "gp2"
    }
  ]
}

locals {
  ebs_name = [for i in var.ebs_volumes : i.ebs_name]
  ebs_size = [for i in var.ebs_volumes : i.ebs_size]
  ebs_type = [for i in var.ebs_volumes : i.ebs_type]
}

locals {
  node_disks = { for pair in setproduct(var.nodes, local.ebs_name) : "${pair[0]}:${pair[1]}" => {
    node_index = pair[0]
    ebs_name   = pair[1]
    ebs_size   = [for i in var.ebs_volumes : i.ebs_size]
    ebs_type   = [for i in var.ebs_volumes : i.ebs_type]
  } }
}

output "combined" {
  value = local.node_disks
}

When I run terraform apply I get the following result

    $ terraform apply

Apply complete! Resources: 0 added, 0 changed, 0 destroyed.

Outputs:

combined = {
  "1:/dev/xdba" = {
    "ebs_name" = "/dev/xdba"
    "ebs_size" = [
      "50",
      "20",
    ]
    "ebs_type" = [
      "gp2",
      "gp2",
    ]
    "node_index" = "1"
  }
  "1:/dev/xdbb" = {
    "ebs_name" = "/dev/xdbb"
    "ebs_size" = [
      "50",
      "20",
    ]
    "ebs_type" = [
      "gp2",
      "gp2",
    ]
    "node_index" = "1"
  }
  "2:/dev/xdba" = {
    "ebs_name" = "/dev/xdba"
    "ebs_size" = [
      "50",
      "20",
    ]
    "ebs_type" = [
      "gp2",
      "gp2",
    ]
    "node_index" = "2"
  }
  "2:/dev/xdbb" = {
    "ebs_name" = "/dev/xdbb"
    "ebs_size" = [
      "50",
      "20",
    ]
    "ebs_type" = [
      "gp2",
      "gp2",
    ]
    "node_index" = "2"
  }
  "3:/dev/xdba" = {
    "ebs_name" = "/dev/xdba"
    "ebs_size" = [
      "50",
      "20",
    ]
    "ebs_type" = [
      "gp2",
      "gp2",
    ]
    "node_index" = "3"
  }
  "3:/dev/xdbb" = {
    "ebs_name" = "/dev/xdbb"
    "ebs_size" = [
      "50",
      "20",
    ]
    "ebs_type" = [
      "gp2",
      "gp2",
    ]
    "node_index" = "3"
  }
}

Instead I want to be able to have the result as shown below (psudo code):

combined = {
  "1:/dev/xvdb" = {
    "disk_dev_path" = "/dev/xvdb"
    "node_name" = "1"
    "disk_size" = "10"
    "disk_type" = "gp2"
  }
  "1:/dev/xvdc" = {
    "disk_dev_path" = "/dev/xvdc"
    "node_name" = "1"
    "disk_size" = "30"
    "disk_type" = "gp2"
  }
  "2:/dev/xvdb" = {
    "disk_dev_path" = "/dev/xvdb"
    "node_name" = "2"
    "disk_size" = "10"
    "disk_type" = "gp2"
  }
  "2:/dev/xvdc" = {
    "disk_dev_path" = "/dev/xvdc"
    "node_name" = "2"
    "disk_size" = "30"
    "disk_type" = "gp2"
  }
  "3:/dev/xvdb" = {
    "disk_dev_path" = "/dev/xvdb"
    "node_name" = "3"
    "disk_size" = "10"
    "disk_type" = "gp2"
  }
  "3:/dev/xvdc" = {
    "disk_dev_path" = "/dev/xvdc"
    "node_name" = "3"
    "disk_size" = "30"
    "disk_type" = "gp2"
  }
}

How to achieve this?

I need this in order to use this in for_each to create ec2 instances and ebs volumes and attach them respectively whenever user adds an input in the variable using our ec2 module.