Example of usage constants service to provide

constants-example.yml

# launch and add to env
application:
   interfaces:
     values:
       subnet: bind(const#network.subnet)
       prefixLength: bind(const#network.prefixLength)
     configuration: 
       values: bind(const#configuration.values)
   configuration:
     configuration.values:
       network.subnet: "192.168.0.0"
       network.prefixLength: 16
   components:
     const:
       type: cobalt.common.Constants
       interfaces:
          network:
            subnet: publish-signal(string)
            prefixLength: publish-signal(int)

environment.yml

# import on environment page
policies: {}
markers: []
properties: 
  oracle-url: 
    type: string
    value: "jdbc:oracle:thin:@//localhost/myservice"

usage.yml

application:
  bindings: 
    - [workflow, env-props]
    - [workflow, network-info]
  components: 
    env-props: 
      type: reference.Service
      interfaces:
        props: 
          oracle-url: publish-signal(string)
    network-info:
      type: reference.Service
      interfaces:
        network:
          subnet: publish-signal(string)
          prefixLength: publish-signal(string)
    workflow:
      type: workflow.Instance
      interfaces:
        network: 
          subnet: consume-signal(string)
          prefixLength: consume-signal(string)
        props:
          oracle-url: consume-signal(string)
        outputs:
          network: publish-signal(string)
          url:     publish-signal(string)
      required: [network, props]
      configuration:
        configuration.workflows:
          launch:
            steps:
              - get-env:
                  action: getSignals
                  output: 
                    result: result
            return:
              network:
                value: "{$.result.network.subnet}/{$.result.network.prefixLength}"
              url:
                value: "{$.result.props.oracle-url}"