CBA

The Controller Blueprint Archived is the overall service design, fully model-driven, package needed to automate the instantiation and any config provisioning operation, such as day0 or day2 configuration.

The CBA is .zip file, comprised of the following structure:

.
├── Definitions
│   ├── blueprint.json
│   ├── artifact_types.json
│   ├── data_types.json
│   ├── node_types.json
│   ├── policy_types.json
│   ├── relationship_types.json
│   ├── resources_definition_types.json
│   └── *-mapping.json
├── Plans
│   ├── ResourceAssignment.xml
│   ├── ConfigAssign.xml
│   └── ConfigDeploy.xml
├── Scripts
│   └── python
│       ├── ConfigDeployExample.py
│       ├── ResourceResolutionExample.py
│       └── __init__.py
├── TOSCA-Metadata
│   └── TOSCA.meta
└── Templates
    └── *-template.vtl

Data Dictionary

A data dictionary defines a specifc resource that can be resolved using the bellow the supported sources.

A data dictionary can support multiple resources.

The main goal of data dictionary is to define generic entity that could be shared accross the service catalog.

Resolution sources

Input

Default

SQL

Default (SDNC DB)

Generic

REST

Default (SDNC MDSAL)

Generic

Capability (scripts)

Python

Kotlin script

Netconf (through Python)

Workflow

A workflow defines an overall action to be taken for the service; it can be composed of a set of sub-actions node to execute. Currently, workflows are backed by Directed Graph engine.

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The following workflows are contracts being established between SO, SDNC and CDS to cover the instantiation and the post-instantiation use cases.

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This action is triggered by Generic-Resource-API (GR-API) within SDNC as part of the AssignBB orchestrated by SO. Hence it will be triggered for each VNF(s) and VF-Module(s).

In order to know for which entity the action is triggeredwhat to resolved, one input is required, that is the artifact prefix (see bellow for explanation).

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${vnf-name} and ${vf-module-label} is what we call the artifact prefix, so the requirement could be seen as follow:

${artifact

...

-prefix}-template
${artifact-prefix}-mapping

template

The template has to be a resource accumulator template; that be composed of the following sections:

• resource-accumulator-resolved-data: defines all the resources that can be resolved directly from the context. It expresses a direct mapping between the name of the resource and its value.

  Code Block
  title RA resolved data collapse true
  "resource-accumulator-resolved-data": [ { "param-name": "service-instance-id", "param-value": "${service-instance-id}" }, { "param-name": "vnf_id", "param-value": "${vnf-id}" } ]

  
  

• capability-data: defines what capability to use to create a specific resource, along with the ingredients required to invoke the capability and the output mapping.

  Code Block
  title RA capability payload collapse true
  { "capability-name": "netbox-ip-assign", "key-mapping": [ { "payload": [ { "param-name": "service-instance-id", "param-value": "${service-instance-id}" }, { "param-name": "prefix-id", "param-value": "${private-prefix-id}" }, { "param-name": "vf-module-id", "param-value": "${vf-module-id}" }, { "param-name": "external_key", "param-value": "${vf-module-id}-vpg_private_ip_1" } ], "output-key-mapping": [ { "resource-name": "vpg_private_ip_1", "resource-value": "${vpg_private_ip_1}" } ] } ] }

  
  

mapping

Defines the contract of each resource to be resolved. Each placeholder in the template must have a corresponding mapping definition.

A mapping is comprised of:

• name
• required / optional
• type (support complex type)
• dictionary-name
• dictionary-source
• dependencies: this allows to make sure given resources get resolved prior the resolution of the resources defining the dependency.

The dictionary fields reference to a specific data dictionary.

scripts

If any of the mapping uses a source capabbility to resolve a parameters.

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