Azure Service Bus Topic pattern-based discovery

  • Release version: Zurich
  • Updated July 31, 2025
  • 2 minutes to read
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    Summary of Azure Service Bus Topic pattern-based discovery

    The Azure Service Bus Topic pattern-based discovery enables ServiceNow customers to find and map Azure Service Bus Topics within their cloud environment using the Discovery and Service Mapping Patterns application. This process helps populate detailed configuration item (CI) data into both CMDB and non-CMDB tables, facilitating comprehensive asset and service management.

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    To use this pattern effectively, customers must ensure Microsoft Azure discovery prerequisites are met, enable the relevant discovery pattern (which is disabled by default), and configure discovery schedules appropriately—especially for Azure GovCloud accounts.

    Key Features

    • Pattern Activation: The Azure Service Bus Topic pattern is disabled by default but can be enabled without losing updates post-upgrade, starting from Visibility Content version 6.28.0.
    • Discovery Scope: Supports discovering Azure Service Bus Topics including detailed properties such as message size limits, partitioning, subscription counts, and deployment region.
    • Data Storage: Populates Azure Service Bus Topic data into both CMDB (Cloud Topic table) and non-CMDB tables, allowing for thorough inventory and status tracking.
    • GovCloud Support: Requires specific datacenter URL configuration to discover resources in Azure GovCloud (US) environments.
    • CI Relationships: Automatically creates relationships between discovered Azure Service Bus Topics and related CIs such as resource groups and Azure datacenters, enabling clear service mapping.

    Key Outcomes

    • Accurate CMDB Entries: Detailed Azure Service Bus Topic information is stored in the cmdbcicloudtopic table, including operational status, location, and description.
    • Extended Inventory Details: Additional resource-specific attributes like enablement of batched operations, partitioning, maximum message size, and subscription count are stored in a dedicated non-CMDB Azure table for deeper insights.
    • Enhanced Service Mapping: Relationships created between topics, resource groups, and datacenters provide a comprehensive view of Azure infrastructure components within ServiceNow.
    • Up-to-Date Discovery Data: Patterns reset to the latest predefined versions after upgrades, ensuring discovery data remains current without manual customization loss.

    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 - Service Bus 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.

    Table 1. Azure Service Bus - Topic [cmdb_azure_service_bus_topic]
    Field Description
    Enable Batched Operations [enable_batched_operations] Indicates whether batched operations are enabled for the topic.
    Enable Partitioning [enable_partitioning] Specifies if the topic is partitioned to support scalability.
    DC Location [location] The geographical region where the topic is deployed.
    Max Message Size In KB [max_message_size_in_kb] The maximum size of any message that can be sent to the topic, measured in kilobytes (KB).
    Max Size In MB [max_size_in_mb] The maximum storage limit for the topic in megabytes (MB).
    Object Id [object_id] The unique identifier for the topic resource.
    Status [status] The status of the topic resource. For example: Active or Disabled.
    Subscription Count [subscription_count] The number of active subscriptions associated with the topic.
    Resource Group [resource_group] Name of the resource group.
    Subscription ID [subscription_id] The subscription ID.
    Configuration Item [configuration_item] References the Cloud Topic [cmdb_ci_cloud_topic] table.

    Data stored in CMDB tables

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

    Table 2. Cloud Topic [cmdb_ci_cloud_topic]
    Field Description
    Install Status [install_status] Install status of the resource. Default value is Installed.
    Location [location] The geographical region where the topic is deployed.
    Name [name] The name of the topic within the Service Bus namespace.
    Object ID [object_id] The unique identifier of the resource in the following format: /subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ServiceBus/namespaces/{namespaceName}/topics/{topicName}
    Operational status [operational_status] Operational status of the resource. Default value is Operational.
    Description [short_description] Description of the resource or service.

    CI relationships

    The pattern creates these relationships to support discovery.

    CI Relationship CI
    Cloud Resource [cmdb_ci_cmp_resource] Contains::Contained by Cloud Topic [cmdb_ci_cloud_topic]
    Resource Group [cmdb_ci_resource_group] Contains::Contained by Cloud Topic [cmdb_ci_cloud_topic]
    Cloud Topic [cmdb_ci_cloud_topic] Hosted on::Hosts Azure Datacenter [cmdb_ci_azure_datacenter]
    Azure Service Bus - Topic [cmdb_azure_service_bus_topic] References Cloud Topic [cmdb_ci_cloud_topic]