Update packages/@aws-cdk/aws-apprunner-alpha/lib/auto-scaling-configu…

…ration.ts

Co-authored-by: Luca Pizzini <[email protected]>

packages/@aws-cdk/aws-apprunner-alpha/lib/auto-scaling-configuration.ts

@@ -157,14 +157,12 @@ export class AutoScalingConfiguration extends cdk.Resource implements IAutoScali
       physicalName: props.autoScalingConfigurationName,
     });
 
-    if (props.autoScalingConfigurationName !== undefined) {
-      if (props.autoScalingConfigurationName.length < 4 || props.autoScalingConfigurationName.length > 32) {
-        throw new Error(`autoScalingConfigurationName must be between 4 and 32 characters long, but it has ${props.autoScalingConfigurationName.length} characters.`);
-      }
-
-      if (!/^[A-Za-z0-9][A-Za-z0-9\-_]{3,31}$/.test(props.autoScalingConfigurationName)) {
-        throw new Error(`autoScalingConfigurationName ${props.autoScalingConfigurationName} must start with a letter or number, and can contain only letters, numbers, hyphens, and underscores.`);
-      }
+    if (
+      props.autoScalingConfigurationName !== undefined && 
+      !cdk.Token.isUnresolved(props.autoScalingConfigurationName) &&
+      !/^[A-Za-z0-9][A-Za-z0-9\-_]{3,31}$/.test(props.autoScalingConfigurationName)
+    ) {
+      throw new Error(`autoScalingConfigurationName must match the ^[A-Za-z0-9][A-Za-z0-9\-_]{3,31}$ pattern, got ${props.autoScalingConfigurationName}`);
     }
 
     if (props.minSize !== undefined && !cdk.Token.isUnresolved(props.minSize) && (props.minSize < 1 || props.minSize > 25)) {