Use valid ASG names

March 21, 2025 ยท View on GitHub

SYNOPSIS

Application Security Group (ASG) names should meet naming requirements.

DESCRIPTION

When naming Azure resources, resource names must meet service requirements. The requirements for ASG names are:

  • Between 1 and 80 characters long.
  • Alphanumerics, underscores, periods, and hyphens.
  • Start with alphanumeric.
  • End alphanumeric or underscore.
  • ASG names must be unique within a resource group.

RECOMMENDATION

Consider using names that meet Application Security Group naming requirements. Additionally consider naming resources with a standard naming convention.

EXAMPLES

Configure with Azure template

To deploy Application Security Groups that pass this rule:

  • Set name to a value that meets the requirements.

For example:

{
  "type": "Microsoft.Network/applicationSecurityGroups",
  "apiVersion": "2022-01-01",
  "name": "[parameters('asgName')]",
  "location": "[parameters('location')]",
  "properties": {}
}

Configure with Bicep

To deploy Application Security Groups that pass this rule:

  • Set name to a value that meets the requirements.

For example:

resource asg 'Microsoft.Network/applicationSecurityGroups@2022-01-01' = {
  name: asgName
  location:location
  properties: {}
}

NOTES

This rule does not check if ASG names are unique.