How do you extend a deploymentNode?

[caligo-mentis]

Description

We are trying to model complex enterprise landscape using c4 according to the enterprise modelling example, everything works fine except deployment diagrams. When trying to extend deploymentNode the following error occurs:

workspace.dsl: An element/relationship identified by "dataCenter" could not be found

Steps to reproduce

1. Define some deploymentEnvironment and deploymentNode in system-catalog.dsl
2. Try to !extend deploymentNode from system-catalog in software system workspace

Screenshot

No response

Code sample

// system-catalog.dsl

workspace {

    !identifiers hierarchical

    model {
        customer = person "Customer"

        orderService = softwareSystem "Order Service"
        invoiceService = softwareSystem "Invoice Service"
        customerService = softwareSystem "Customer Service"

        live = deploymentEnvironment "Live" {
            dataCenter = deploymentNode "Data Center"
        }
    }

    views {
        styles {
            element "Person" {
                shape person
            }
        }
    }

}


// order-service/workspace.dsl

workspace extends ../system-catalog.dsl {

    name "Order service"

    model {
        !extend orderService {
            webapp = container "Orders UI"
            database = container "Orders Database"

            customer -> webapp "Makes orders using"
            webapp -> customerService "Manages customer data using" "JSON/HTTPS"
            webapp -> database "Reads from and writes to"
        }

        !extend dataCenter {
            softwareSystemInstance orderService
        }
    }

    views {
        systemContext orderService "SystemContext" {
            include *
            autolayout lr
        }

        container orderService "Containers" {
            include *
            autolayout lr
        }

        deployment orderService live {
            include *
            autolayout lr
        }
    }

    configuration {
        scope softwaresystem
    }

}

Configuration

No response

Severity

Minor

Priority

I have no budget and there's no rush, please fix this for free

More information

No response

[simonbrowndotje]

With hierarchical identifiers enabled, you'll need to do this:

!extend live.dataCenter {
  ...
}

[caligo-mentis]

Thanks, Simon! I've missed !identifiers directive in example, now works as expected