Azure Compute Gallery Image Definition pattern-based discovery

  • Release version: Yokohama
  • Updated June 16, 2026
  • 2 minutes to read
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    Summary of Azure Compute Gallery Image Definition pattern-based discovery

    The Azure Compute Gallery Image Definition pattern-based discovery in ServiceNow enables automated detection and mapping of Azure Compute Gallery image definitions within your cloud environment. This capability integrates with the Discovery and Service Mapping Patterns application to populate relevant data into both CMDB and non-CMDB tables, providing detailed insights into your Azure resources.

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    Key Features

    • Pattern Activation: The Azure Compute Gallery Image Definition pattern is disabled by default. From Visibility Content version 6.28.0 onward, enabling or disabling patterns is simplified and supported through updates without being treated as customizations.
    • Discovery Prerequisites: Requires verification of Microsoft Azure discovery prerequisites and appropriate configuration of Azure service accounts, including special setup for Azure GovCloud environments.
    • Data Population: Discovers and fills detailed resource data into non-CMDB tables (for extended inventory) and CMDB tables, ensuring comprehensive configuration management data.
    • CI Relationships: Automatically creates relationships among resources such as resource groups, cloud resources, and Azure datacenters to support accurate discovery and mapping.
    • Tag Discovery: Collects Azure tags and records them in the Key Value table for enhanced resource categorization and management.

    Data and Configuration Details

    The discovery captures key attributes of Azure Compute Gallery image definitions, including architecture, OS type, provisioning state, SKU, subscription and tenant IDs, and location. It references the discovered resources within the Cloud Resource CMDB table and establishes relationships to resource groups and datacenters. Tags associated with these resources are stored separately for easy reference.

    Practical Benefits for ServiceNow Customers

    • Enables comprehensive visibility of Azure Compute Gallery image definitions within your CMDB, improving asset tracking and cloud resource management.
    • Supports compliance and governance by maintaining up-to-date and accurate resource states and relationships.
    • Facilitates integration with other ServiceNow processes that rely on accurate CMDB data.
    • Provides streamlined pattern management with automatic updates, reducing maintenance overhead.

    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 components 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 - Compute Gallery Image Definition - 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 Compute Gallery - Image Definition [cmdb_azure_compute_gallery_image_definition]
    Field Description
    Architecture [architecture] Central processing unit (CPU) architecture of the resource, such as x86 or ARM.
    Hyper-V Generation [hyper_v_generation] The Hyper-V generation version of the virtual machine.
    Kind [kind] The specific subcategory or variation type of the resource.
    Location [location] The geographical region where the resource is deployed.
    Object Id [object_id] The unique identifier of the resource.
    OS Type [os_type] The operating system type associated with the resource.
    Provisioning State [provisioning_state] Current provisioning status of the resource.
    Resource Group [resource_group] Name of the resource group.
    SKU [sku] The stock keeping unit (SKU) that defines the pricing tier of the resource.
    Subscription ID [subscription_id] The subscription ID.
    Tenant ID [tenant_id] The unique identifier for the Azure Active Directory tenant.
    Configuration Item [configuration_item] References the Cloud Resource [cmdb_ci_cmp_resource] table.

    Data stored in CMDB tables

    Discovery and Service Mapping Patterns application populates data in the CMDB when running the Azure - Compute Gallery Image Definition - Extended Inventory(LP) pattern.

    Table 2. Cloud Resource [cmdb_ci_cmp_resource]
    Field Description
    Install Status [install_status] Install status of the resource. Default value is Installed.
    Location [location] The geographical region where the resource is deployed.
    Name [name] The name given to the resource.
    Object ID [object_id] The unique identifier of the resource.
    Operational status [operational_status] Operational status of the resource. Default value is Operational.
    Resource type [resource_type] Type of resource. The value is set to microsoft.compute/galleries/images.

    CI relationships

    The pattern creates these relationships to support discovery.

    CI Relationship CI
    Resource Group [cmdb_ci_resource_group] Contains::Contained by Cloud Resource [cmdb_ci_cmp_resource]
    Cloud Resource [cmdb_ci_cmp_resource] Hosted on::Hosts Azure Datacenter [cmdb_ci_azure_datacenter]
    Azure Compute Gallery - Image Definition [cmdb_azure_compute_gallery_image_definition] References Cloud Resource [cmdb_ci_cmp_resource]

    Azure tag discovery

    The pattern collects tags and populates them in the Key Value [cmdb_key_value] table.
    Table 3. Key Value [cmdb_key_value]
    Field Description
    Key [key] Tag name.
    Value [value] Tag value.