tosca_definitions_version: tosca_simple_yaml_1_0_0
node_types: 
  tosca.nodes.Database:
    derived_from: tosca.nodes.Root
    properties:
      name:
        type: string
        description: the logical name of the database
      port:
        type: integer
        description: the port the underlying database service will listen to for data
      user:
        type: string
        description: the optional user account name for DB administration
        required: false
      password:
        type: string
        description: the optional password for the DB user account
        required: false
    requirements:
      - host:
          capability: tosca.capabilities.Container
          node: tosca.nodes.DBMS
          relationship: tosca.relationships.HostedOn
    capabilities:
      database_endpoint: 
        type: tosca.capabilities.Endpoint.Database