Azure naming · Microsoft.App/containerApps

ca Container app

An app in Azure Container Apps.

Naming constraints

CAF abbreviationca
Resource typeMicrosoft.App/containerApps
Length2–32 characters
CaseLowercase only
Allowed charactersLowercase letters, numbers, and hyphens. Start with a letter; end with a letter or number.
Uniqueness Resource group
SeparatorHyphen
Watch out: Only 32 characters and lowercase only. Region and instance tokens eat the budget quickly.

Source: Microsoft Learn, “Naming rules and restrictions for Azure resources”, checked October 2026. Abbreviation from the Cloud Adoption Framework.

Example & copy-ready

A worked name for workload app, env prod, region weu, instance 001.

Example name
ca-app-prod-weu-001 Valid
Validation regex for CI checks or pre-commit hooks (.NET and JavaScript) 
^(?=.{2,32}$)[a-z][a-z0-9-]*[a-z0-9]$
Bicep naming expression 
var name = take(toLower('ca-${workload}-${env}-${region}-${instance}'), 32)
Terraform local 
locals {
  name = substr(lower(join("-", compact(["ca", var.workload, var.env, var.region, var.instance]))), 0, 32)
}

Azure Policy can't evaluate regular expressions, so a policy can check the ca prefix but not the full format. Run the regex in your pipeline, or audit existing names on a schedule.

« AKS node pool Container instance »

Uniqueness scope

Unique within the parent resource group. The same name can be reused in a different resource group.

Open in the name generator

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