能否在Terraform的Azure JSON模板参数代码中插入整数/数字？

Absolutely! You can absolutely use integer/numeric parameters in your Azure JSON (ARM) template when deploying via Terraform—here's how to do it smoothly:

• Step 1: Define integer parameters in your ARM template
  First, declare your integer parameter directly in the JSON template's parameters block. You can set a default value and description for clarity:

  {
    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
      "workerNodeCount": {
        "type": "int",
        "defaultValue": 2,
        "metadata": {
          "description": "Number of Docker Swarm worker nodes to deploy"
        }
      }
    },
    "resources": [
      // Use the parameter in your resource definitions, e.g., for loops or resource properties:
      // "[parameters('workerNodeCount')]"
    ]
  }
  

• Step 2: Pass integer values from Terraform
  In your azurerm_template_deployment resource, you can either use the template's default integer value or override it via the parameters block. Terraform handles numeric values natively here, no extra formatting needed:

  resource "azurerm_resource_group" "docker" {
    name     = "CSI-DockerSwarm"
    location = "West Europe"
  }
  
  resource "azurerm_template_deployment" "Docker" {
    name                = "Example-Deployment"
    resource_group_name = azurerm_resource_group.docker.name
    template_body       = <<DEPLOY
  {
    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
      "workerNodeCount": {
        "type": "int",
        "defaultValue": 2
      }
    },
    "resources": [
      // Your resource definitions using the integer parameter go here
    ]
  }
  DEPLOY
  
    // Override the default integer value if needed
    parameters = {
      workerNodeCount = 4 // Directly pass an integer here
    }
  }
  

• Bonus: Use Terraform variables for dynamic integers
  If you want to make the value configurable in your Terraform setup, define a numeric variable and reference it:

  variable "swarm_worker_count" {
    type        = number
    description = "Number of Docker Swarm worker nodes to provision"
    default     = 2
  }
  
  // Then in your template deployment:
  parameters = {
    workerNodeCount = var.swarm_worker_count
  }
  

This approach keeps your setup flexible, follows ARM template best practices, and plays nicely with Terraform's type system.

内容的提问来源于stack exchange，提问作者U.Durk