--- sourceDocument: Australia IT Operations Management sourceDocumentLink: https://www.servicenow.com/docs/r/australia/it-operations-management Release : - australia ft:locale : - en-US ft:publication_title : - Australia IT Operations Management ft:clusterId : - itom bundleId : - itom workflow : - Technology --- # AWS OS image # AWS OS image pattern-based discovery {#ariaid-title1} Release version: Australia Updated March 12, 2026 ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 2 minutes to read Summarize ![AI sparkle icon](https://servicenow.com/docs/portal-asset/ai-sparkle-icon) Summarized using AI This content was generated using new OpenAI-powered functionality. Results are provided on an as is basis and are not guaranteed to be accurate or complete. ## Summary of AWS OS image pattern-based discovery AWS OS image pattern-based discovery in ServiceNow enables automated detection of AWS OS images within your cloud environment. It identifies both owned images (custom images created by your AWS account) and executable images (public or shared images your account can use). This discovery capability is part of the Discovery and Service Mapping Patterns application, which may require updating to the latest version from the ServiceNow Store to function correctly. Show full answer Show less The discovery process uses specific patterns: Amazon AWS - Owned Template (LP) and Amazon AWS - Executable Template (LP) for traditional OS image discovery, and optionally Amazon AWS - Owned Cloud OS Image (LP) and Amazon AWS - Executable Cloud OS Image (LP) to store images in the Cloud Image \[cmdbcicloudosimage\] table. Using the Cloud Image table helps avoid an excessive number of records in the Image \[cmdbciostemplate\] table. ## Key Features * **Pattern-based discovery:** Automates detection of AWS OS images using predefined patterns tailored for both owned and executable images. * **Choice of CMDB tables:** Allows storing discovered OS images in either the traditional Image \[cmdbciostemplate\] table or the Cloud Image \[cmdbcicloudosimage\] table to optimize data management. * **Comprehensive data collection:** Captures critical attributes such as image name, unique AWS object ID, image type, root device type, image source, guest OS, and cloud provider. * **CI relationships:** Automatically establishes relationships between OS images and AWS datacenters, supporting better configuration management and impact analysis. * **AWS Tag discovery:** Since version 1.30.2, tag discovery is handled separately by a pattern extension focused on tags, improving clarity and manageability. License discovery is now part of the Amazon AWS - Virtual Server (LP) pattern. ## Practical Application for ServiceNow Customers By leveraging AWS OS image pattern-based discovery, you can maintain an accurate and up-to-date CMDB reflecting your AWS OS images, which is critical for managing cloud infrastructure effectively. The option to use the Cloud Image table helps prevent CMDB bloat from large numbers of OS image records, ensuring performance and manageability. Ensure that AWS discovery prerequisites are met as detailed in the AWS discovery using patterns documentation. Keeping the Discovery and Service Mapping Patterns app updated is essential to access the latest improvements and pattern versions. With these discovery patterns, you can confidently track your OS images, their relationships, and associated metadata, enabling better governance, compliance, and automation of cloud operations within ServiceNow. Discovery and Service Mapping Patterns finds AWS OS images (both owned and executable) on your cloud environment. Discovering some of these resources might require updating to the latest version of the Discovery and Service Mapping Patterns application from the ServiceNow Store. Discovery uses the Amazon AWS - Owned Template (LP) and Amazon AWS - Executable Template (LP) patterns to discover AWS OS images from your AWS account. Owned images are custom images created by your AWS account, while executable images include public and shared images your account has permission to use. When using the Image \[cmdb_ci_os_template\] table to store Cloud OS images, you may notice an unusually large number of records. To avoid this issue, you can store the discovered OS images in the Cloud Image \[cmdb_ci_cloud_os_image\] table. When enabled, Discovery launches the Amazon AWS - Owned Cloud OS Image (LP) and Amazon AWS - Executable Cloud OS Image (LP) patterns, which populate the Cloud Image \[cmdb_ci_cloud_os_image\] table. For more information, see [Enable Cloud OS Image discovery](https://www.servicenow.com/docs/AM9L2gpoJH8rga6KPXl_5g "Enable the Cloud OS Image [cmdb_ci_cloud_os_image] table to store the cloud OS image records for Amazon AWS Cloud, Microsoft Azure Cloud, Google Cloud Platform (GCP), Oracle Cloud Infrastructure (OCI), and IBM Cloud."). ## Pattern-based discovery and mapping requirements {#aws-os-image-pattern__section_rpj_fj2_bgc} Verify the AWS discovery prerequisites section in [AWS discovery using patterns](https://www.servicenow.com/docs/NFaTlkGaSxMWb2bQPsCnCA "Discovery and Service Mapping Patterns uses patterns to discover components of the Amazon AWS Cloud deployment during horizontal discovery. Discovering some of these resources might require updating to the latest version of the Discovery and Service Mapping Patterns application from the ServiceNow Store."). ## Data collected by Discovery during horizontal discovery {#aws-os-image-pattern__section_ggp_ql2_bgc} Discovery populates the data in the CMDB when running the AWS OS image patterns. {#aws-os-image-pattern__table_os_image_fields__entry__2} | Field | Description | |-|-| | Name \[name\] | Name of the image. For example: CentOS 7.0-64 Minimal for VSI. | | Object ID \[object_id\] | Unique identifier, allocated by Amazon AWS Cloud for this resource. | | Image Type \[image_type\] | Type of the OS image. | | Root Device Type \[root_device_type\] | The device name of the root device volume. For example: /dev/sda1. | | Image Source \[image_source\] | Source of the OS image. | | Guest OS \[guest_os\] | Operating system that is secondary to the OS. | | Provider \[provider\] | The cloud provider, which is AWS. This field is only populated in the Cloud Image \[cmdb_ci_cloud_os_image\] table. | [Table 1. Image \[cmdb_ci_os_template\] or Cloud Image \[cmdb_ci_cloud_os_image\]] {#aws-os-image-pattern__table_os_image_fields} ## CI relationships {#aws-os-image-pattern__section_dc4_ghc_dgc} The AWS OS image patterns create these relationships to support AWS OS image discovery. {#aws-os-image-pattern__table_relationships__entry__3} | CI | Relationship | CI | |-|-|-| | Image \[cmdb_ci_os_template\] or Cloud Image \[cmdb_ci_cloud_os_image\] | Hosted on::Hosts | AWS Datacenter \[cmdb_ci_aws_datacenter\] | | Key value \[cmdb_key_value\] | References | Image \[cmdb_ci_os_template\] or Cloud Image \[cmdb_ci_cloud_os_image\] | [ ] {#aws-os-image-pattern__table_relationships} ## AWS Tag discovery {#aws-os-image-pattern__section_c34_1yv_c3c} Starting with Discovery and Service Mapping Patterns version 1.30.2, the pattern extension section discovers tags only. License discovery has moved to the Amazon AWS - Virtual Server (LP) pattern. {#aws-os-image-pattern__table_pgt_2yv_c3c__entry__2} | Field | Description | |-|-| | Key \[key\] | Tag name. | | Value \[value\] | Tag value. | | Configuration item \[configuration_item\] | References the Image \[cmdb_ci_os_template\] or Cloud Image \[cmdb_ci_cloud_os_image\] table. | [Table 2. Key value \[cmdb_key_value\]] {#aws-os-image-pattern__table_pgt_2yv_c3c}