Amazon EventBridge Event Bus pattern-based discovery

  • Release version: Zurich
  • Updated May 13, 2026
  • 2 minutes to read
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    Summary of Amazon EventBridge Event Bus pattern-based discovery

    The Amazon EventBridge Event Bus pattern-based discovery within ServiceNow’s Discovery and Service Mapping Patterns application enables you to automatically find and map Amazon EventBridge Event Buses in your AWS cloud environment. This discovery populates relevant data into both Configuration Management Database (CMDB) and non-CMDB tables, enhancing your visibility into cloud messaging services.

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    Key Features

    • Pattern Activation and Updates: The EventBridge Event Bus discovery pattern is disabled by default and requires activation. Starting with Visibility Content version 6.28.0, activating or deactivating patterns does not count as a customization, ensuring patterns receive updates without losing settings after upgrades.
    • AWS Discovery Prerequisites: Ensure AWS discovery prerequisites are met, including removing relevant resources from the Resource Inclusion List to prevent duplicate discovery.
    • GovCloud Support: Discovery of AWS GovCloud (US) accounts requires configuring the AWS service account with the appropriate datacenter URL.
    • Data Population: The discovery populates detailed information into:
      • Non-CMDB Tables: Using the “Amazon AWS - EventBridge Event Bus - Extended Inventory (LP)” pattern, data is stored in AWS-specific non-CMDB tables accessible under Configuration > AWS.
      • CMDB Tables: Key data about EventBridge Event Buses are stored in the Cloud Messaging Service [cmdbcicloudmessagingservice] table, including name, ARN, type, install status, and operational status.
    • CI Relationships and References: The pattern creates relationships such as “Hosted on” linking Cloud Messaging Services to AWS Datacenters, supporting comprehensive service mapping. References link discovered EventBridge Event Bus records to related CI records.
    • AWS Tag Discovery: Tags from AWS EventBridge Event Buses are collected and stored in the Key Value [cmdbkeyvalue] table, linked to the corresponding Cloud Messaging Service CI, enabling enhanced tagging and filtering capabilities.

    Practical Implications for ServiceNow Customers

    By enabling and configuring this pattern, you can automate discovery of Amazon EventBridge Event Buses, ensuring accurate and up-to-date representation of your cloud messaging infrastructure in your CMDB. This supports improved service mapping, impact analysis, and operational visibility. Proper setup, including adherence to AWS discovery prerequisites and managing resource inclusion lists, helps avoid duplicates and ensures comprehensive data collection. Additionally, the support for GovCloud accounts and tag collection enhances flexibility and governance.

    Discovery and Service Mapping Patterns finds Amazon EventBridge Event Buses 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 AWS discovery prerequisites
    For more information, see the prerequisites section in AWS discovery using patterns.
    Remove resources from the Resource Inclusion List table
    Verify that the relevant resource isn't listed in the Resource Inclusion List [sa_cloud_inventory_resource_whitelist] table to avoid duplicate discovery. For more information on removing resources from the Resource Inclusion List, see AWS Resource Inventory discovery with 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 AWS GovCloud (US) accounts requires using a datacenter URL when setting up an AWS service account. For more information, see Create AWS 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 Amazon AWS - EventBridge Event Bus - Extended Inventory (LP) pattern.

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

    Table 1. AWS EventBridge Event Bus [cmdb_aws_eventbridge_event_bus]
    Field Description
    Name [name] Name of the event bus.
    Object ID [object_id] The Amazon Resource Name (ARN) of the event bus.
    Policy [policy] The resource-based policy that controls who can send events to the event bus.
    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 Amazon AWS - EventBridge Event Bus - Extended Inventory (LP) pattern.

    Table 2. Cloud Messaging Service [cmdb_ci_cloud_messaging_service]
    Field Description
    Name [name] Name of the event bus.
    Object ID [object_id] The ARN of the event bus.
    Type [type] Type of resource. The value is set to AWS::EventBridge::EventBus.
    Install Status [install_status] Install status of the resource. Default value is Installed.
    Operational status [operational_status] Operational status of the resource. Default value is Operational.

    CI relationships

    The Amazon AWS - EventBridge Event Bus - Extended Inventory (LP) pattern creates the following relationships and references to support Amazon EventBridge Event Bus discovery. References link to records in other tables and don't appear in the CI Relationship [cmdb_rel_ci] table.

    Table 3. CI relationships
    CI Relationship CI
    Cloud Messaging Service [cmdb_ci_cloud_messaging_service] Hosted on::Hosts AWS Datacenter [cmdb_ci_aws_datacenter]
    Table 4. CI references
    CI Field Referenced CI
    AWS EventBridge Event Bus [cmdb_aws_eventbridge_event_bus] Configuration Item [configuration_item] Cloud Messaging Service [cmdb_ci_cloud_messaging_service]
    Key Value [cmdb_key_value] Configuration item [configuration_item] Cloud Messaging Service [cmdb_ci_cloud_messaging_service]

    AWS Tag discovery

    The Amazon AWS - EventBridge Event Bus - Extended Inventory (LP) pattern collects tags and populates them in the Key Value [cmdb_key_value] table.

    Table 5. Key Value [cmdb_key_value]
    Field Description
    Key [key] Tag name.
    Value [value] Tag value.
    Configuration item [configuration_item] References the Cloud Messaging Service [cmdb_ci_cloud_messaging_service] table.