"undefined method 'location'" error received when running Apply Changes on Azure

Products

• Operations Manager

Issue/Introduction

In Azure environment, you get this intermittent error when triggering an Apply Changes from Ops Manager, Platform Automation, Concourse, or om CLI:

{"errors":{"base":["undefined method `location' for nil:NilClass"]}}

or

FailedError.new("Resource Groups in region '#{location}' do not support Availability Zones"))

A recent change has been made on the Azure CPI side that leads to this intermittent error if the location info is missing from Azure Resource SKU API: https://docs.microsoft.com/en-us/rest/api/compute/resourceskus/list#lists-all-available-resource-skus

All version of Ops Manager are impacted.

Environment

Product Version: 2.7

Resolution

Workaround

You can resolve this issue with the Ops Manager API or the om CLI:

• Disable the install_time verifier for IaasConfiguration using Ops Manager API: https://docs.pivotal.io/platform/2-9/opsman-api/#tag/Install-Time-Verifiers/paths/~1api~1v0~1staged~1director~1verifiers~1install_time~1{verifier_name}/put
• Using the om CLI command:

om --env env/config/env.yml curl -p /api/v0/staged/director/verifiers/install_time/IaasConfigurationVerifier -x PUT -d '{ "enabled": false }'

Once the install_time verifier is disabled, you can manually Apply Changes or use the om CLI command until the new version of Ops Manager is available.

The fix will be available in the next supported release of Ops Manager 2.7.24, 2.8.14, 2.9.11, 2.10.2