setupNICS-existing.json

{
  "$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "location": {
      "type": "string"
    },
    "nicName": {
      "type": "string"
    },
    "subnet0Name": {
      "type": "string"
    },
    "subnet1Name": {
      "type": "string"
    },
    "subnet2Name": {
      "type": "string"
    },
    "virtualNetworkName": {
      "type": "string"
    },
    "virtualNetworkExistingRGName": {
      "type": "string"
    },
    "MgmtPublicIPAddressName": {
      "type": "string"
    },
    "MgmtPublicIPRGName": {
      "type": "string"
    },
    "MgmtPublicIP": {
      "type": "string"
    },
    "UntrustPublicIPAddressName": {
      "type": "string"
    },
    "UntrustPublicIP": {
      "type": "string"
    }
  },
  "variables": {
      "vnetID": "[resourceId(parameters('virtualNetworkExistingRGName'),concat('Microsoft.Network','/','virtualNetworks'),parameters('virtualNetworkName'))]",
      "subnet0Ref": "[concat(variables('vnetID'),'/subnets/',parameters('subnet0Name'))]",
      "subnet1Ref": "[concat(variables('vnetID'),'/subnets/',parameters('subnet1Name'))]",
      "subnet2Ref": "[concat(variables('vnetID'),'/subnets/',parameters('subnet2Name'))]",
      "mgmtpip": "[concat('mgmtIP-', parameters('MgmtPublicIPAddressName'))]"
  },
  "resources": [
    {
      "name": "[concat('eth0-', parameters('nicName'))]",
      "type": "Microsoft.Network/networkInterfaces",
      "location": "[parameters('location')]",
      "apiVersion": "2015-06-15",
      "properties": {
        "ipConfigurations": [
          {
            "name": "ipconfig-mgmt",
            "properties": {
              "privateIPAllocationMethod": "Dynamic",
              "publicIPAddress": {
                 "id": "[resourceId(parameters('MgmtPublicIPRGName'),'Microsoft.Network/publicIPAddresses', variables('mgmtpip'))]"
              },
              "subnet": {
                "id": "[variables('subnet0Ref')]"
              }
            }
          }
        ]
      }
    },
    {
      "name": "[concat('eth1-', parameters('nicName'))]",
      "type": "Microsoft.Network/networkInterfaces",
      "location": "[parameters('location')]",
      "apiVersion": "2015-06-15",
      "properties": {
      "enableIPForwarding": true,
        "ipConfigurations": [
          {
            "name": "ipconfig-untrust",
            "properties": {
              "privateIPAllocationMethod": "Dynamic",
              "subnet": {
                "id": "[variables('subnet1Ref')]"
              }
            }
          }
        ]
      }
    },
    {
      "name": "[concat('eth2-', parameters('nicName'))]",
      "type": "Microsoft.Network/networkInterfaces",
      "location": "[parameters('location')]",
      "apiVersion": "2015-06-15",
      "properties": {
        "enableIPForwarding": true,
        "ipConfigurations": [
          {
            "name": "ipconfig-trust",
            "properties": {
              "privateIPAllocationMethod": "Dynamic",
              "subnet": {
                "id": "[variables('subnet2Ref')]"
              }
            }
          }
        ]
      }
    }
  ],
  "outputs": {}
}