Public IP should use Standard SKU

Medium Azure General publicip-public-standard-sku

Applies to

Microsoft.Network/publicIPAddresses

What CGPulse checks

A resource passes this rule when sku.name must equal Standard. Anything else is reported as a finding with the evaluated property value attached as evidence.

How to fix it

Upgrade to Standard SKU for zone redundancy and better security defaults (may require recreation). In Azure Portal: create new Standard SKU Public IP and migrate. See: https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/public-ip-upgrade-portal

CLI

az network public-ip show --ids "{id}" --query "sku.name" -o tsv

Bicep

param location string = resourceGroup().location

resource newPip 'Microsoft.Network/publicIPAddresses@2023-11-01' = {{
  name: '{name}-standard'
  location: location
  sku: {{ name: 'Standard', tier: 'Regional' }}
  properties: {{
    publicIPAllocationMethod: 'Static'
  }}
}}
// TODO: Associate the new PIP with the resource that used the old Basic PIP, then delete the old one

Terraform

# Public IP SKU cannot be changed in-place; create new Standard SKU
resource "azurerm_public_ip" "{name}" {
  name                = "{name}"
  resource_group_name = "{rg}"
  location            = var.location
  allocation_method   = "Static"
  sku                 = "Standard"
}

Compliance frameworks

Vendor documentation

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