Operating system-level virtualization discovery

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

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.

Data collected

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]
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]
Operating System Level Virtualization Container [cmdb_ci_oslv_container]	Container ID [container_id] Status [status] Size (bytes) [size_bytes] Image ID [image_id]

• Docker virtualization
  Discovery uses the Docker Pattern to collect data about specific objects in a Docker engine, running on a Linux host.