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implications-constraints

Variable Service Template

The variability of the following variable service template shall be resolved.

tosca_definitions_version: tosca_variability_1_0
topology_template:
  variability:
    options:
      node_default_condition: true
      node_default_condition_mode: incoming-host
      relation_default_condition: true
      relation_default_condition_mode: source-target
      type_default_condition: true
      hosting_stack_constraint: true
      optimization_topology: false
      optimization_topology_unique: true
    inputs:
      static:
        type: boolean
        default: true
    presets:
      static:
        inputs:
          static: true
      elastic:
        inputs:
          static: false
    expressions:
      is_static:
        equal:
          - variability_input: static
          - true
      is_elastic:
        equal:
          - variability_input: static
          - false
    constraints:
      - implies:
          - logic_expression: is_static
          - relation_presence:
              - worker
              - dev_host
      - implies:
          - logic_expression: is_elastic
          - relation_presence:
              - worker
              - prod_host
  node_templates:
    worker:
      type: worker
      persistent: true
      requirements:
        - dev_database:
            node: dev_database
        - dev_host:
            node: dev_host
        - prod_database:
            node: prod_database
        - prod_host:
            node: prod_host
    dev_database:
      type: dev_database
      requirements:
        - host: dev_host
    dev_host:
      type: dev_host
      requirements:
        - host:
            node: dev_cloud
    dev_cloud:
      type: dev_cloud
    prod_database:
      type: prod_database
      requirements:
        - host: prod_host
    prod_host:
      type: prod_host
      requirements:
        - host:
            node: prod_cloud
    prod_cloud:
      type: prod_cloud

Variability-Resolved Service Template

The following variability-resolved service template is expected.

tosca_definitions_version: tosca_simple_yaml_1_3
topology_template:
  node_templates:
    worker:
      type: worker
      requirements:
        - prod_database: prod_database
        - prod_host: prod_host
    prod_database:
      type: prod_database
      requirements:
        - host: prod_host
    prod_host:
      type: prod_host
      requirements:
        - host: prod_cloud
    prod_cloud:
      type: prod_cloud

Last update: March 27, 2024