5.1.6. NFV TOSCA Type Definition

5.1.6.1. tosca.capabilites.nfv.VirtualCompute

This capability is used with the properties specified in ETSI SOL001 draft.

5.1.6.2. tosca.nodes.nfv.VDU.Compute

The NFV Virtualization Deployment Unit (VDU) compute node type represents a VDU entity which it describes the deployment and operational behavior of a VNF component (VNFC), as defined by [ETSI NFV IFA011].

Shorthand Name	VDU.Compute
Type Qualified Name	tosca:VDU.Compute
Type URI	tosca.nodes.nfv.VDU.Compute
derived_from	tosca.nodes.Compute

5.1.6.2.1. Attributes

None

5.1.6.2.2. Capabilities

Name

Type

Constraints

Description

virtual_compute

tosca.capabilities.nfv.VirtualCompute

Describes virtual compute resources capabilities.

monitoring_parameter

tosca.capabilities.nfv.Metric

None

Monitoring parameter, which can be tracked for a VNFC based on this VDU

Examples include: memory-consumption, CPU-utilisation, bandwidth-consumption, VNFC downtime, etc.

Virtual_binding

tosca.capabilities.nfv.VirtualBindable

editor note: need to create a capability type

Defines ability of VirtualBindable

5.1.6.2.3. Definition

tosca.nodes.nfv.VDU.Compute:

derived_from: tosca.nodes.Compute

properties:

name:

type: string

required: true

description:

type: string

required: true

boot_order:

type: list # explicit index (boot index) not necessary, contrary to IFA011

entry_schema:

type: string

required: false

nfvi_constraints:

type: list

entry_schema:

type: string

required: false

configurable_properties:

type: map

entry_schema:

type: tosca.datatypes.nfv.VnfcConfigurableProperties

required: true

attributes:

private_address:

status: deprecated

public_address:

status: deprecated

networks:

status: deprecated

ports:

status: deprecated

capabilities:

virtual_compute:

type: tosca.capabilities.nfv.VirtualCompute

virtual_binding:

type: tosca.capabilities.nfv.VirtualBindable

#monitoring_parameter:

# modeled as ad hoc (named) capabilities in VDU node template

# for example:

#capabilities:

# cpu_load: tosca.capabilities.nfv.Metric

# memory_usage: tosca.capabilities.nfv.Metric

host: #Editor note: FFS. How this capabilities should be used in NFV Profile|

type: *tosca.capabilities.Container*

valid_source_types:
[*tosca.nodes.SoftwareComponent*]

occurrences: [0,UNBOUNDED]

endpoint:

occurrences: [0,0]

os:

occurrences: [0,0]

scalable:
#Editor note: FFS. How this capabilities should be used in NFV Profile

type: *tosca.capabilities.Scalable*

binding:

occurrences: [0,UNBOUND]

requirements:

- virtual_storage:

capability: tosca.capabilities.nfv.VirtualStorage

relationship: tosca.relationships.nfv.VDU.AttachedTo

node: tosca.nodes.nfv.VDU.VirtualStorage

occurences: [ 0, UNBOUNDED ]

- local_storage: #For NFV Profile, this requirement is deprecated.

occurrences: [0,0]

artifacts:

- sw_image:

file:

type: tosca.artifacts.nfv.SwImage

5.1.6.2.4. Artifact

Note: currently not supported.

Name	Required	Type	Constraints	Description
SwImage	Yes	tosca.artifacts.nfv.SwImage		Describes the software image which is directly realizing this virtual storage

5.1.6.3. tosca.nodes.nfv.VDU.VirtualStorage

The NFV VirtualStorage node type represents a virtual storage entity which it describes the deployment and operational behavior of a virtual storage resources, as defined by [ETSI NFV IFA011].

[editor note] open issue: should NFV profile use the current storage model as described in YAML 1.1. Pending on Shitao proposal (see NFVIFA(17)000110 discussion paper)

[editor note] new relationship type as suggested in Matt presentation. Slide 8. With specific rules of “valid_target_type”

Shorthand Name	VirtualStorage
Type Qualified Name	tosca: VirtualStorage
Type URI	tosca.nodes.nfv.VDU.VirtualStorage
derived_from	tosca.nodes.Root

5.1.6.4. tosca.artifacts.nfv.SwImage

Shorthand Name	SwImage
Type Qualified Name	tosca:SwImage
Type URI	tosca.artifacts.nfv.SwImage
derived_from	tosca.artifacts.Deployment.Image

5.1.6.4.1. Properties

Name	Required	Type	Description
name	yes	string	Name of this software image
version	yes	string	Version of this software image
checksum	yes	string	Checksum of the software image file
container_format	yes	string	The container format describes the container file format in which software image is provided.
disk_format	yes	string	The disk format of a software image is the format of the underlying disk image
min_disk	yes	scalar-unit.size	The minimal disk size requirement for this software image.
min_ram	no	scalar-unit.size	The minimal RAM requirement for this software image.
Size	yes	scalar-unit.size	The size of this software image
sw_image	yes	string	A reference to the actual software image within VNF Package, or url.
operating_system	no	string	Identifies the operating system used in the software image.
supported_virtualization_enviroment	no	list	Identifies the virtualization environments (e.g. hypervisor) compatible with this software image

5.1.6.4.2. Definition

tosca.artifacts.nfv.SwImage:

  derived_from: tosca.artifacts.Deployment.Image

  properties or metadata:

    #id:

      # node name

    name:

      type: string

required: true

    version:

      type: string

required: true

    checksum:

      type: string

required: true

    container_format:

      type: string

required: true

    disk_format:

      type: string

required: true

    min_disk:

      type: scalar-unit.size # Number

required: true

    min_ram:

      type: scalar-unit.size # Number

required: false

    size:

      type: scalar-unit.size # Number

required: true

    sw_image:

      type: string

required: true

    operating_system:

      type: string

required: false

    supported_virtualisation_environments:

      type: list

      entry_schema:

        type: string

required: false