path: root/nfvparser/toscaparser/elements/TOSCA_definition_1_0.yaml

#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

##########################################################################
# The content of this file reflects TOSCA Simple Profile in YAML version
# 1.0.0. It describes the definition for TOSCA types including Node Type,
# Relationship Type, Capability Type and Interfaces.
##########################################################################
tosca_definitions_version: tosca_simple_yaml_1_0

##########################################################################
# Node Type.
# A Node Type is a reusable entity that defines the type of one or more
# Node Templates.
##########################################################################
node_types:
  tosca.nodes.Root:
    description: >
      The TOSCA root node all other TOSCA base node types derive from.
    attributes:
      tosca_id:
        type: string
      tosca_name:
        type: string
      state:
        type: string
    capabilities:
      feature:
        type: tosca.capabilities.Node
    requirements:
      - dependency:
          capability: tosca.capabilities.Node
          node: tosca.nodes.Root
          relationship: tosca.relationships.DependsOn
          occurrences: [ 0, UNBOUNDED ]
    interfaces:
      Standard:
        type: tosca.interfaces.node.lifecycle.Standard

  tosca.nodes.Compute:
    derived_from: tosca.nodes.Root
    attributes:
      private_address:
        type: string
      public_address:
        type: string
      networks:
        type: map
        entry_schema:
          type: tosca.datatypes.network.NetworkInfo
      ports:
        type: map
        entry_schema:
          type: tosca.datatypes.network.PortInfo
    capabilities:
        host:
           type: tosca.capabilities.Container
        binding:
           type: tosca.capabilities.network.Bindable
        os:
           type: tosca.capabilities.OperatingSystem
        scalable:
           type: tosca.capabilities.Scalable
        endpoint:
           type: tosca.capabilities.Endpoint.Admin
    requirements:
      - local_storage:
          capability: tosca.capabilities.Attachment
          node: tosca.nodes.BlockStorage
          relationship: tosca.relationships.AttachesTo
          occurrences: [0, UNBOUNDED]

  tosca.nodes.SoftwareComponent:
    derived_from: tosca.nodes.Root
    properties:
      # domain-specific software component version
      component_version:
        type: version
        required: false
        description: >
          Software component version.
      admin_credential:
        type: tosca.datatypes.Credential
        required: false
    requirements:
      - host:
          capability: tosca.capabilities.Container
          node: tosca.nodes.Compute
          relationship: tosca.relationships.HostedOn

  tosca.nodes.DBMS:
    derived_from: tosca.nodes.SoftwareComponent
    properties:
      port:
        required: false
        type: integer
        description: >
          The port the DBMS service will listen to for data and requests.
      root_password:
        required: false
        type: string
        description: >
          The root password for the DBMS service.
    capabilities:
      host:
        type: tosca.capabilities.Container
        valid_source_types: [tosca.nodes.Database]

  tosca.nodes.Database:
    derived_from: tosca.nodes.Root
    properties:
      user:
        required: false
        type: string
        description: >
          User account name for DB administration
      port:
        required: false
        type: integer
        description:  >
          The port the database service will use to listen for incoming data and
          requests.
      name:
        required: false
        type: string
        description: >
          The name of the database.
      password:
        required: false
        type: string
        description: >
          The password for the DB user account
    requirements:
      - host:
          capability: tosca.capabilities.Container
          node: tosca.nodes.DBMS
          relationship: tosca.relationships.HostedOn
    capabilities:
      database_endpoint:
        type: tosca.capabilities.Endpoint.Database

  tosca.nodes.WebServer:
    derived_from: tosca.nodes.SoftwareComponent
    capabilities:
      data_endpoint:
        type: tosca.capabilities.Endpoint
      admin_endpoint:
        type: tosca.capabilities.Endpoint.Admin
      host:
        type: tosca.capabilities.Container
        valid_source_types: [tosca.nodes.WebApplication]

  tosca.nodes.WebApplication:
    derived_from: tosca.nodes.Root
    properties:
      context_root:
        type: string
        required: false
    requirements:
      - host:
          capability: tosca.capabilities.Container
          node: tosca.nodes.WebServer
          relationship: tosca.relationships.HostedOn
    capabilities:
      app_endpoint:
        type: tosca.capabilities.Endpoint

  tosca.nodes.BlockStorage:
    derived_from: tosca.nodes.Root
    properties:
      size:
        type: scalar-unit.size
        constraints:
          - greater_or_equal: 1 MB
      volume_id:
        type: string
        required: false
      snapshot_id:
        type: string
        required: false
    attributes:
      volume_id:
        type: string
    capabilities:
      attachment:
        type: tosca.capabilities.Attachment

  tosca.nodes.network.Network:
    derived_from: tosca.nodes.Root
    description: >
      The TOSCA Network node represents a simple, logical network service.
    properties:
      ip_version:
        type: integer
        required: false
        default: 4
        constraints:
          - valid_values: [ 4, 6 ]
        description: >
          The IP version of the requested network. Valid values are 4 for ipv4
          or 6 for ipv6.
      cidr:
        type: string
        required: false
        description: >
          The cidr block of the requested network.
      start_ip:
        type: string
        required: false
        description: >
           The IP address to be used as the start of a pool of addresses within
           the full IP range derived from the cidr block.
      end_ip:
        type: string
        required: false
        description: >
            The IP address to be used as the end of a pool of addresses within
            the full IP range derived from the cidr block.
      gateway_ip:
        type: string
        required: false
        description: >
           The gateway IP address.
      network_name:
        type: string
        required: false
        description: >
           An identifier that represents an existing Network instance in the
           underlying cloud infrastructure or can be used as the name of the
           newly created network. If network_name is provided and no other
           properties are provided (with exception of network_id), then an
           existing network instance will be used. If network_name is provided
           alongside with more properties then a new network with this name will
           be created.
      network_id:
        type: string
        required: false
        description: >
           An identifier that represents an existing Network instance in the
           underlying cloud infrastructure. This property is mutually exclusive
           with all other properties except network_name. This can be used alone
           or together with network_name to identify an existing network.
      segmentation_id:
        type: string
        required: false
        description: >
           A segmentation identifier in the underlying cloud infrastructure.
           E.g. VLAN ID, GRE tunnel ID, etc..
      network_type:
        type: string
        required: false
        description: >
           It specifies the nature of the physical network in the underlying
           cloud infrastructure. Examples are flat, vlan, gre or vxlan.
           For flat and vlan types, physical_network should be provided too.
      physical_network:
        type: string
        required: false
        description: >
           It identifies the physical network on top of which the network is
           implemented, e.g. physnet1. This property is required if network_type
           is flat or vlan.
      dhcp_enabled:
        type: boolean
        required: false
        default: true
        description: >
          Indicates should DHCP service be enabled on the network or not.
    capabilities:
      link:
        type: tosca.capabilities.network.Linkable

  tosca.nodes.network.Port:
    derived_from: tosca.nodes.Root
    description: >
      The TOSCA Port node represents a logical entity that associates between
      Compute and Network normative types. The Port node type effectively
      represents a single virtual NIC on the Compute node instance.
    properties:
      ip_address:
        type: string
        required: false
        description: >
          Allow the user to set a static IP.
      order:
        type: integer
        required: false
        default: 0
        constraints:
          - greater_or_equal: 0
        description: >
          The order of the NIC on the compute instance (e.g. eth2).
      is_default:
        type: boolean
        required: false
        default: false
        description: >
          If is_default=true this port will be used for the default gateway
          route. Only one port that is associated to single compute node can
          set as is_default=true.
      ip_range_start:
        type: string
        required: false
        description: >
          Defines the starting IP of a range to be allocated for the compute
          instances that are associated with this Port.
      ip_range_end:
        type: string
        required: false
        description: >
          Defines the ending IP of a range to be allocated for the compute
          instances that are associated with this Port.
    attributes:
      ip_address:
        type: string
    requirements:
      - binding:
          description: >
            Binding requirement expresses the relationship between Port and
            Compute nodes. Effectively it indicates that the Port will be
            attached to specific Compute node instance
          capability: tosca.capabilities.network.Bindable
          relationship: tosca.relationships.network.BindsTo
          node: tosca.nodes.Compute
      - link:
          description: >
            Link requirement expresses the relationship between Port and Network
            nodes. It indicates which network this port will connect to.
          capability: tosca.capabilities.network.Linkable
          relationship: tosca.relationships.network.LinksTo
          node: tosca.nodes.network.Network

  tosca.nodes.network.FloatingIP:
    derived_from: tosca.nodes.Root
    description: >
      The TOSCA FloatingIP node represents a floating IP that can associate to a Port.
    properties:
      floating_network:
        type: string
        required: true
      floating_ip_address:
        type: string
        required: false
      port_id:
        type: string
        required: false
    requirements:
      - link:
          capability: tosca.capabilities.network.Linkable
          relationship: tosca.relationships.network.LinksTo
          node: tosca.nodes.network.Port

  tosca.nodes.ObjectStorage:
    derived_from: tosca.nodes.Root
    description: >
      The TOSCA ObjectStorage node represents storage that provides the ability
      to store data as objects (or BLOBs of data) without consideration for the
      underlying filesystem or devices
    properties:
      name:
        type: string
        required: true
        description: >
          The logical name of the object store (or container).
      size:
        type: scalar-unit.size
        required: false
        constraints:
          - greater_or_equal: 0 GB
        description: >
          The requested initial storage size.
      maxsize:
        type: scalar-unit.size
        required: false
        constraints:
          - greater_or_equal: 0 GB
        description: >
          The requested maximum storage size.
    capabilities:
      storage_endpoint:
        type: tosca.capabilities.Endpoint

  tosca.nodes.LoadBalancer:
    derived_from: tosca.nodes.Root
    properties:
      algorithm:
        type: string
        required: false
        status: experimental
    capabilities:
      client:
        type: tosca.capabilities.Endpoint.Public
        occurrences: [0, UNBOUNDED]
        description: the Floating (IP) client’s on the public network can connect to
    requirements:
      - application:
          capability: tosca.capabilities.Endpoint
          relationship: tosca.relationships.RoutesTo
          occurrences: [0, UNBOUNDED]
          description: Connection to one or more load balanced applications

  tosca.nodes.Container.Application:
    derived_from: tosca.nodes.Root
    requirements:
      - host:
          capability: tosca.capabilities.Container
          node: tosca.nodes.Container.Runtime
          relationship: tosca.relationships.HostedOn

  tosca.nodes.Container.Runtime:
    derived_from: tosca.nodes.SoftwareComponent
    capabilities:
      host:
        type: tosca.capabilities.Container
      scalable:
        type: tosca.capabilities.Scalable

  tosca.nodes.Container.Application.Docker:
    derived_from: tosca.nodes.Container.Application
    requirements:
      - host:
          capability: tosca.capabilities.Container.Docker

##########################################################################
# Relationship Type.
# A Relationship Type is a reusable entity that defines the type of one
# or more relationships between Node Types or Node Templates.
##########################################################################
relationship_types:
  tosca.relationships.Root:
    description: >
      The TOSCA root Relationship Type all other TOSCA base Relationship Types
      derive from.
    attributes:
      tosca_id:
        type: string
      tosca_name:
        type: string
    interfaces:
      Configure:
        type: tosca.interfaces.relationship.Configure

  tosca.relationships.DependsOn:
    derived_from: tosca.relationships.Root

  tosca.relationships.HostedOn:
    derived_from: tosca.relationships.Root
    valid_target_types: [ tosca.capabilities.Container ]

  tosca.relationships.ConnectsTo:
    derived_from: tosca.relationships.Root
    valid_target_types: [ tosca.capabilities.Endpoint ]
    credential:
      type: tosca.datatypes.Credential
      required: false

  tosca.relationships.AttachesTo:
    derived_from: tosca.relationships.Root
    valid_target_types: [ tosca.capabilities.Attachment ]
    properties:
      location:
        required: true
        type: string
        constraints:
          - min_length: 1
      device:
        required: false
        type: string

  tosca.relationships.RoutesTo:
    derived_from: tosca.relationships.ConnectsTo
    valid_target_types: [ tosca.capabilities.Endpoint ]

  tosca.relationships.network.LinksTo:
    derived_from: tosca.relationships.DependsOn
    valid_target_types: [ tosca.capabilities.network.Linkable ]

  tosca.relationships.network.BindsTo:
    derived_from: tosca.relationships.DependsOn
    valid_target_types: [ tosca.capabilities.network.Bindable ]

##########################################################################
# Capability Type.
# A Capability Type is a reusable entity that describes a kind of
# capability that a Node Type can declare to expose.
##########################################################################
capability_types:
  tosca.capabilities.Root:
    description: >
      The TOSCA root Capability Type all other TOSCA base Capability Types
      derive from.

  tosca.capabilities.Node:
    derived_from: tosca.capabilities.Root

  tosca.capabilities.Container:
    derived_from: tosca.capabilities.Root
    properties:
      num_cpus:
        required: false
        type: integer
        constraints:
          - greater_or_equal: 1
      cpu_frequency:
        required: false
        type: scalar-unit.frequency
        constraints:
          - greater_or_equal: 0.1 GHz
      disk_size:
        required: false
        type: scalar-unit.size
        constraints:
          - greater_or_equal: 0 MB
      mem_size:
        required: false
        type: scalar-unit.size
        constraints:
          - greater_or_equal: 0 MB

  tosca.capabilities.Endpoint:
    derived_from: tosca.capabilities.Root
    properties:
      protocol:
        type: string
        required: true
        default: tcp
      port:
        type: tosca.datatypes.network.PortDef
        required: false
      secure:
        type: boolean
        required: false
        default: false
      url_path:
        type: string
        required: false
      port_name:
        type: string
        required: false
      network_name:
        type: string
        required: false
        default: PRIVATE
      initiator:
        type: string
        required: false
        default: source
        constraints:
          - valid_values: [source, target, peer]
      ports:
        type: map
        required: false
        constraints:
          - min_length: 1
        entry_schema:
          type: tosca.datatypes.network.PortSpec
    attributes:
      ip_address:
        type: string

  tosca.capabilities.Endpoint.Admin:
    derived_from: tosca.capabilities.Endpoint
    properties:
      secure:
        type: boolean
        default: true
        constraints:
          - equal: true

  tosca.capabilities.Endpoint.Public:
    derived_from: tosca.capabilities.Endpoint
    properties:
      # Change the default network_name to use the first public network found
      network_name:
        type: string
        default: PUBLIC
        constraints:
          - equal: PUBLIC
      floating:
        description: >
          Indicates that the public address should be allocated from a pool of
          floating IPs that are associated with the network.
        type: boolean
        default: false
        status: experimental
      dns_name:
        description: The optional name to register with DNS
        type: string
        required: false
        status: experimental

  tosca.capabilities.Scalable:
    derived_from: tosca.capabilities.Root
    properties:
      min_instances:
        type: integer
        required: true
        default: 1
        description: >
          This property is used to indicate the minimum number of instances
          that should be created for the associated TOSCA Node Template by
          a TOSCA orchestrator.
      max_instances:
        type: integer
        required: true
        default: 1
        description: >
          This property is used to indicate the maximum number of instances
          that should be created for the associated TOSCA Node Template by
          a TOSCA orchestrator.
      default_instances:
        type: integer
        required: false
        description: >
          An optional property that indicates the requested default number
          of instances that should be the starting number of instances a
          TOSCA orchestrator should attempt to allocate.
          The value for this property MUST be in the range between the values
          set for min_instances and max_instances properties.

  tosca.capabilities.Endpoint.Database:
    derived_from: tosca.capabilities.Endpoint

  tosca.capabilities.Attachment:
    derived_from: tosca.capabilities.Root

  tosca.capabilities.network.Linkable:
    derived_from: tosca.capabilities.Root
    description: >
      A node type that includes the Linkable capability indicates that it can
      be pointed by tosca.relationships.network.LinksTo relationship type, which
      represents an association relationship between Port and Network node types.

  tosca.capabilities.network.Bindable:
    derived_from: tosca.capabilities.Root
    description: >
      A node type that includes the Bindable capability indicates that it can
      be pointed by tosca.relationships.network.BindsTo relationship type, which
      represents a network association relationship between Port and Compute node
      types.

  tosca.capabilities.OperatingSystem:
    derived_from: tosca.capabilities.Root
    properties:
      architecture:
        required: false
        type: string
        description: >
          The host Operating System (OS) architecture.
      type:
        required: false
        type: string
        description: >
          The host Operating System (OS) type.
      distribution:
        required: false
        type: string
        description: >
          The host Operating System (OS) distribution. Examples of valid values
          for an “type” of “Linux” would include:
          debian, fedora, rhel and ubuntu.
      version:
        required: false
        type: version
        description: >
          The host Operating System version.

  tosca.capabilities.Container.Docker:
    derived_from: tosca.capabilities.Container
    properties:
      version:
        type: list
        required: false
        entry_schema:
          type: version
        description: >
          The Docker version capability.
      publish_all:
        type: boolean
        default: false
        required: false
        description: >
          Indicates that all ports (ranges) listed in the dockerfile
          using the EXPOSE keyword be published.
      publish_ports:
        type: list
        entry_schema:
          type: tosca.datatypes.network.PortSpec
        required: false
        description: >
          List of ports mappings from source (Docker container)
          to target (host) ports to publish.
      expose_ports:
        type: list
        entry_schema:
          type: tosca.datatypes.network.PortSpec
        required: false
        description: >
          List of ports mappings from source (Docker container) to expose
          to other Docker containers (not accessible outside host).
      volumes:
        type: list
        entry_schema:
          type: string
        required: false
        description: >
          The dockerfile VOLUME command which is used to enable access
          from the Docker container to a directory on the host machine.
      host_id:
        type: string
        required: false
        description: >
            The optional identifier of an existing host resource
            that should be used to run this container on.
      volume_id:
        type: string
        required: false
        description: >
          The optional identifier of an existing storage volume (resource)
          that should be used to create the container's mount point(s) on.

##########################################################################
 # Interfaces Type.
 # The Interfaces element describes a list of one or more interface
 # definitions for a modelable entity (e.g., a Node or Relationship Type)
 # as defined within the TOSCA Simple Profile specification.
##########################################################################
interface_types:
  tosca.interfaces.node.lifecycle.Standard:
    create:
      description: Standard lifecycle create operation.
    configure:
      description: Standard lifecycle configure operation.
    start:
      description: Standard lifecycle start operation.
    stop:
      description: Standard lifecycle stop operation.
    delete:
      description: Standard lifecycle delete operation.

  tosca.interfaces.relationship.Configure:
    pre_configure_source:
      description: Operation to pre-configure the source endpoint.
    pre_configure_target:
      description: Operation to pre-configure the target endpoint.
    post_configure_source:
      description: Operation to post-configure the source endpoint.
    post_configure_target:
      description: Operation to post-configure the target endpoint.
    add_target:
      description: Operation to add a target node.
    remove_target:
      description: Operation to remove a target node.
    add_source: >
      description: Operation to notify the target node of a source node which
      is now available via a relationship.
      description:
    target_changed: >
      description: Operation to notify source some property or attribute of the
      target changed

##########################################################################
 # Data Type.
 # A Datatype is a complex data type declaration which contains other
 # complex or simple data types.
##########################################################################
data_types:
  tosca.datatypes.Root:
    description: >
      The TOSCA root Data Type all other TOSCA base Data Types derive from

  tosca.datatypes.network.NetworkInfo:
    derived_from: tosca.datatypes.Root
    properties:
      network_name:
        type: string
      network_id:
        type: string
      addresses:
        type: list
        entry_schema:
          type: string

  tosca.datatypes.network.PortInfo:
    derived_from: tosca.datatypes.Root
    properties:
      port_name:
        type: string
      port_id:
        type: string
      network_id:
        type: string
      mac_address:
        type: string
      addresses:
        type: list
        entry_schema:
          type: string

  tosca.datatypes.network.PortDef:
    derived_from: tosca.datatypes.Root
    type: integer
    constraints:
      - in_range: [ 1, 65535 ]

  tosca.datatypes.network.PortSpec:
    derived_from: tosca.datatypes.Root
    properties:
      protocol:
        type: string
        required: true
        default: tcp
        constraints:
          - valid_values: [ udp, tcp, igmp ]
      target:
        type: tosca.datatypes.network.PortDef
        required: false
      target_range:
        type: range
        required: false
        constraints:
          - in_range: [ 1, 65535 ]
      source:
        type: tosca.datatypes.network.PortDef
        required: false
      source_range:
        type: range
        required: false
        constraints:
          - in_range: [ 1, 65535 ]

  tosca.datatypes.Credential:
    derived_from: tosca.datatypes.Root
    properties:
      protocol:
        type: string
        required: false
      token_type:
        type: string
        default: password
        required: true
      token:
        type: string
        required: true
      keys:
        type: map
        entry_schema:
          type: string
        required: false
      user:
        type: string
        required: false

##########################################################################
 # Artifact Type.
 # An Artifact Type is a reusable entity that defines the type of one or more
 # files which Node Types or Node Templates can have dependent relationships
 # and used during operations such as during installation or deployment.
##########################################################################
artifact_types:
  tosca.artifacts.Root:
    description: >
      The TOSCA Artifact Type all other TOSCA Artifact Types derive from
    properties:
      version: version

  tosca.artifacts.File:
    derived_from: tosca.artifacts.Root

  tosca.artifacts.Deployment:
    derived_from: tosca.artifacts.Root
    description: TOSCA base type for deployment artifacts

  tosca.artifacts.Deployment.Image:
    derived_from: tosca.artifacts.Deployment

  tosca.artifacts.Deployment.Image.VM:
    derived_from: tosca.artifacts.Deployment.Image

  tosca.artifacts.Implementation:
    derived_from: tosca.artifacts.Root
    description: TOSCA base type for implementation artifacts

  tosca.artifacts.Implementation.Bash:
    derived_from: tosca.artifacts.Implementation
    description: Script artifact for the Unix Bash shell
    mime_type: application/x-sh
    file_ext: [ sh ]

  tosca.artifacts.Implementation.Python:
    derived_from: tosca.artifacts.Implementation
    description: Artifact for the interpreted Python language
    mime_type: application/x-python
    file_ext: [ py ]

  tosca.artifacts.Deployment.Image.Container.Docker:
    derived_from: tosca.artifacts.Deployment.Image
    description: Docker container image

  tosca.artifacts.Deployment.Image.VM.ISO:
    derived_from: tosca.artifacts.Deployment.Image
    description: Virtual Machine (VM) image in ISO disk format
    mime_type: application/octet-stream
    file_ext: [ iso ]

  tosca.artifacts.Deployment.Image.VM.QCOW2:
    derived_from: tosca.artifacts.Deployment.Image
    description: Virtual Machine (VM) image in QCOW v2 standard disk format
    mime_type: application/octet-stream
    file_ext: [ qcow2 ]

##########################################################################
 # Policy Type.
 # TOSCA Policy Types represent logical grouping of TOSCA nodes that have
 # an implied relationship and need to be orchestrated or managed together
 # to achieve some result.
##########################################################################
policy_types:
  tosca.policies.Root:
    description: The TOSCA Policy Type all other TOSCA Policy Types derive from.

  tosca.policies.Placement:
    derived_from: tosca.policies.Root
    description: The TOSCA Policy Type definition that is used to govern
      placement of TOSCA nodes or groups of nodes.

  tosca.policies.Placement.Colocate:
    derived_from: tosca.policies.Placement
    description: The TOSCA Policy Type definition that is used to govern
      colocate placement of TOSCA nodes or groups of nodes.

  tosca.policies.Placement.Antilocate:
    derived_from: tosca.policies.Placement
    description: The TOSCA Policy Type definition that is used to govern
      anti-locate placement of TOSCA nodes or groups of nodes.

  tosca.policies.Scaling:
    derived_from: tosca.policies.Root
    description: The TOSCA Policy Type definition that is used to govern
      scaling of TOSCA nodes or groups of nodes.

  tosca.policies.Monitoring:
    derived_from: tosca.policies.Root
    description: The TOSCA Policy Type definition that is used to govern
      monitoring of TOSCA nodes or groups of nodes.

  tosca.policies.Update:
    derived_from: tosca.policies.Root
    description: The TOSCA Policy Type definition that is used to govern
      update of TOSCA nodes or groups of nodes.

  tosca.policies.Performance:
    derived_from: tosca.policies.Root
    description: The TOSCA Policy Type definition that is used to declare
      performance requirements for TOSCA nodes or groups of nodes.

##########################################################################
 # Group Type.
 # Group Type represents logical grouping of TOSCA nodes that have an
 # implied membership relationship and may need to be orchestrated or
 # managed together to achieve some result.
##########################################################################
group_types:
  tosca.groups.Root:
    description: The TOSCA Group Type all other TOSCA Group Types derive from
    interfaces:
      Standard:
        type: tosca.interfaces.node.lifecycle.Standard