When CAPS is used for Azure Resource Manager prefix, Azure Cloud Builder upgrade returns the following error message, 'The domain name label ALupgradepublicip is invalid. It must conform to the following regular expression: ^[a-z][a-z0-9-]{1,61}[a-z0-9]$'.

Workaround

Note: The issue is fixed in ArcGIS GIS Server 10.8.1 but for ArcGIS GIS Server 10.8.0 upgrades see the workaround below:

There are a couple of solutions available.

Option 1: Using Upgrade Automation Artifacts

a. Run through upgrade workflow and on summary page save/download the Upgrade Automation Artifacts.

b.     Open with Notepad++ and edit “add-upgrade-vm.json”.

c.     Replace Line 270 ( "domainNameLabel": "[parameters('dnsPrefixForPublicIpAddress')]") with "domainNameLabel": "[toLower(parameters('dnsPrefixForPublicIpAddress'))]".

d.     Run upgrades using PowerShell or Bash CLI.

Option 2: Using Cloud Builder by updating template files in One Click Application Install Location (A little harder to find and is not a recommended approach). Make sure CB is not running.

a.  Search the the install location for ArcGIS Cloud Builder 10.8 in a path with URI like the following - C:\Users\username\AppData\Local\Apps\2.0\obfuscatedfoldername\obfuscatedfoldername.For example, C:\Users\shai9087\AppData\Local\Apps\2.0\VTLLKAV7.2E2\RCK8186A.578\arcg...exe_0542afd83ab940eb_000a.0008_none_dbe5eb088b8ce437

The version number is indicated in the .config file name.

b.     Navigate to .\Resources\UpgradeAutomation\Templates

c.     Open and edit “add-upgrade-vm.json”.

d.     Replace Line 270 ( "domainNameLabel": "[parameters('dnsPrefixForPublicIpAddress')]") with "domainNameLabel": "[toLower(parameters('dnsPrefixForPublicIpAddress'))]".

e.     Start Cloud Builder 10.8 and run upgrades.

Steps to Reproduce