ARM Template Lifecycle Management: DOs and DON'Ts

arm-template-bare-minimum.json

{
  "$schema": "...",
  "contentVersion": "...",
  "parameters": {},
  "variables": {},
  "resources": [],
  "outputs": {}
}

arm-template-variabled.json

{
  "parameters": {
    "identifier": { ... },
    "businessUnit": { ... },
    "environment": { ... },
    "location": { ... }
  },
  "variables": {
    "webApp": {
      "name": "[concat(parameters('identifier'), '-', parameters(businessUnit), '-', parameters('environment'), '-', parameters('location'))]"
    }
  },
  "resources": [
    {
      "type": "Microsoft.Web/sites",
      "name": "[variables('webApp').name]",
      ...
    }
  ]
}