---
sourceDocument: Yokohama IT Operations Management
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/yokohama/it-operations-management

 Release :

    - yokohama

ft:locale :

    - en-US

ft:publication_title :

    - Yokohama IT Operations Management

ft:clusterId :

    - itom

bundleId :

    - itom

workflow :

    - Technology


---

# OS-level virtualization discovery

# Operating system-level virtualization discovery {#ariaid-title1}

* Release version: Yokohama
* 
* Updated January 30, 2025
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

Discovery can collect image and container information from Operating system-level virtualization (OS-level virtualization) engines.
Discovery can determine container status
and size and identify images and their tags provided by operating-system-level
virtualization.  
Note:  
Currently, the ServiceNow® platform supports the discovery of Docker virtualization containers only.

## Table schema {#c-oslv-discovery__section_mtp_bqy_1cb}

{#c-oslv-discovery__table_ktd_412_5w__entry__2}

| Table | Description |
|-|-|
| cmdb_ci_oslv_engine | Base table for all OSLV engines. |
| cmdb_ci_oslv_image | Base table for globally unique OSLV images. |
| cmdb_ci_oslv_local_image | Base table for local instances of OSLV images. |
| cmdb_ci_oslv_image_tag | Base table for tags on OSLV images. |
| cmdb_ci_oslv_container | Base table to store containers found on the host. |
[ ]

{#c-oslv-discovery__table_ktd_412_5w}

## Data collected {#c-oslv-discovery__section_ld2_dqy_1cb}

{#c-oslv-discovery__table_lhw_yq2_5w__entry__2}

| Table | Fields |
|-|-|
| Operating System Level Virtualization Engine \[cmdb_ci_oslv_engine\] | Server \[server\] |
| Operating System Level Virtualization Image \[cmdb_ci_oslv_image\] | * Image ID \[image_id\] * Image digest \[image_digest\] * Image created \[image_created_at\] * Size (bytes) \[size_bytes\] {#c-oslv-discovery__ul_p4b_5r2_5w} |
| Operating System Level Virtualization Local Image \[cmdb_ci_oslv_local_image\] | Image ID \[image_id\] |
| Operating System Level Virtualization Image Tag \[cmdb_ci_oslv_image_tag\] | * Image ID \[image_id\] * Repository \[repository\] * Tag \[tag\] {#c-oslv-discovery__ul_qs3_gt2_5w} |
| Operating System Level Virtualization Container \[cmdb_ci_oslv_container\] | * Container ID \[container_id\] * Status \[status\] * Size (bytes) \[size_bytes\] * Image ID \[image_id\] {#c-oslv-discovery__ul_agc_p52_5w} |
[ ]

{#c-oslv-discovery__table_lhw_yq2_5w}
* **[Docker virtualization](https://servicenow-prod.fluidtopics.net/moBGxMCYkup3w1gzKDxSWg)**   
  Discovery uses the Docker Pattern to collect data about specific objects in a Docker engine, running on a Linux host.