Azure Event Grid System Topic discovery with Patterns

Discovery and Service Mapping Patterns finds Azure services on your cloud environment. Discovering some of these resources may require updating to the latest version of the Discovery and Service Mapping Patterns application from the ServiceNow Store.

Pattern-based discovery and mapping requirements

Verify the Microsoft Azure discovery prerequisites

For more information, see the prerequisites section in Microsoft Azure Cloud discovery using patterns.

Enable the relevant pattern

The pattern for this service is disabled by default. Starting with Visibility Content version 6.28.0, activating or deactivating a pattern won't be considered a customization, and it will continue to receive updates. Patterns that were previously activated or deactivated will reset to the latest predefined version after upgrading while retaining the last active field value. For more information on enabling patterns, see Activate a disabled pattern.

Configure the Discovery schedule to support GovCloud

Discovering Azure GovCloud (US) accounts requires using a datacenter URL when setting up an Azure service account. For more information, see Set up Azure service accounts.

Discovery and Service Mapping Patterns application populates data in both CMDB and non-CMDB tables.

Data stored in non-CMDB tables

Discovery and Service Mapping Patterns application populates data in the non-CMDB table when running the Azure - Event Grid System Topic - Extended Inventory(LP) pattern.

You can review the non-CMDB Azure tables by navigating to All > Configuration > Azure. You can also search the navigation filter for the specific pattern name.

Tableau 1. Azure Event Grid - System Topic [cmdb_azure_event_grid_system_topic]

Field	Description
Kind [kind]	The specific kind or stock keeping unit (SKU) of the resource, detailing its capabilities or configuration.
Metric Resource Id [metric_resource_id]	The identifier used for accessing metrics related to the resource.
Object Id [object_id]	The unique identifier of the resource within Azure.
Provisioning State [provisioning_state]	The current status of the resource's provisioning process.
Resource Group [resource_group]	Name of the resource group.
Subscription Id [subscription_id]	The subscription ID.
Tenant Id [tenant_id]	The unique identifier for the Azure Active Directory tenant.
Topic Type [topic_type]	The category or type of the event topic.
Configuration Item [configuration_item]	References the Cloud Messaging Service [cmdb_ci_cloud_messaging_service] table.

Data stored in CMDB tables

Discovery and Service Mapping Patterns application populates data in the CMDB when running the Azure - Event Grid System Topic - Extended Inventory(LP) pattern.

Tableau 2. Cloud Messaging Service [cmdb_ci_cloud_messaging_service]

Field	Description
Install Status [install_status]	Install status of the resource. Default value is Installed.
Location [location]	The geographical region where the resource is hosted.
Name [name]	The name of the resource.
Object ID [object_id]	The unique identifier of the resource within Azure.
Operational status [operational_status]	Operational status of the resource. Default value is Operational.
Type [type]	Type of resource. The value is set to microsoft.eventgrid/systemtopics.

CI relationships

The pattern creates these relationships to support discovery.

CI	Relationship	CI
Resource Group [cmdb_ci_resource_group]	Contains::Contained by	Cloud Messaging Service [cmdb_ci_cloud_messaging_service]
Cloud Messaging Service [cmdb_ci_cloud_messaging_service]	Hosted on::Hosts	Azure Datacenter [cmdb_ci_azure_datacenter]
Azure Event Grid - System Topic [cmdb_azure_event_grid_system_topic]	References	Cloud Messaging Service [cmdb_ci_cloud_messaging_service]

Azure tag discovery

The pattern collects tags and populates them in the Key Value [cmdb_key_value] table.

Tableau 3. Key Value [cmdb_key_value]

Field	Description
Key [key]	Tag name.
Value [value]	Tag value.