Service Types

Service types define the kinds of services that DCM can manage. Each service type represents a specific resource category — for example, virtual machines or containers.

Service types define the schema that catalog items must conform to, ensuring that resources are created with valid configurations.

Note: Currently, service types cannot be created or modified through the CLI. They are pre-registered by the Catalog Manager.

Listing Service Types

Use dcm catalog service-type list to view all registered service types:

dcm catalog service-type list

Example output:

UID                  SERVICE TYPE         API VERSION  CREATED
cluster              cluster              v1alpha1     2026-04-15T17:34:21.225163Z
container            container            v1alpha1     2026-04-15T17:34:21.225003Z
three-tier-app-demo  three-tier-app-demo  v1alpha1     2026-04-15T17:34:21.224575Z
vm                   vm                   v1alpha1     2026-04-15T17:34:21.224901Z

The table columns are:

Column	Description
`UID`	Unique identifier for the service type
`SERVICE TYPE`	The type name, typically in a `group/Kind` format
`API VERSION`	Schema version of the service type
`CREATED`	Timestamp when the service type was registered

Pagination

For environments with many service types, use pagination flags to control the output:

dcm catalog service-type list --page-size 10

To fetch the next page, pass the token returned by the previous response:

dcm catalog service-type list --page-size 10 --page-token "eyJvZmZzZXQiOjEwfQ=="

Getting Service Type Details

Use dcm catalog service-type get to retrieve details for a specific service type:

dcm catalog service-type get a1b2c3d4-e5f6-7890-abcd-ef1234567890

To get the full details in JSON format:

dcm catalog service-type get a1b2c3d4-e5f6-7890-abcd-ef1234567890 -o json

Example JSON output:

{
  "uid": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "service_type": "kubevirt.io/VirtualMachine",
  "api_version": "v1alpha1",
  "create_time": "2026-01-15T10:30:00Z"
}

How Service Types Relate to Other Resources

Service types sit at the foundation of the DCM resource model:

Catalog items reference a service type and must conform to its schema. See Catalog Items.
Providers register with a specific service type, indicating what kinds of resources they can host. See Providers.
Catalog item instances are ultimately deployed according to the schema defined by the service type. See Catalog Item Instances.

Providers Catalog Items