@startuml
Autonumber
Skinparam sequenceArrowThickness 2
skinparam ParticipantPadding 5
skinparam BoxPadding 10
Box "SMO/Non-RT RIC Framework" #gold
participant NFO as "NF Orchestration" <<INT OTF>>
Boundary MC as "Model Catalog" <<SMO MVC State Manager>>
Boundary VI as "Virtual Inventory" <<SMO MVC State Manager>>
Boundary IC as "Instance Config" <<SMO MVC State Manager>>
Participant AppMgr as "rAPPMgr" <<NRTRIC>>
end box
Box "SMO/Non-RT RIC\napplication execution environment " #goldenrod
participant App as "Application" <<RICAPP>>
participant Sidecar as "rAPP Sidecar" <<RICAPP>>
end box
Box "O-Cloud Platform" #lightseagreen
participant IMS as "Cloud Manager"
participant DMS as "Deployment Manager"
End box
== Building Block Identity & Legend ==
note over NFO, DMS #royalblue
**<color: yellow>Building Block : rAPP Startup </color>**
end note
== Assumptions and Prerequisites ==
note over NFO, DMS #darkorange
Application and its sidecar were just created/started by the DMS.
end note
== Begin Building Block ==
Note Right of NFO
Message numbers are discontinous
In order to match same message numbers
In xAPP startup
End note
Sidecar <-> App : connect
Sidecar -> AppMgr : PUT ../xAPPs/<myAPPID>
Note right of AppMgr
Registration returns record contain:
xAPPID,
xAPPRegistrationTime,
xAPPRestarts,
configurationID
end note
alt if xAPPRestarts > 0 and ConfigurationID is not null then
Sidecar -> AppMgr : GET ../configs/<configurationdID>
AppMgr -> IC : GET ../configurations/< configurationdID>
Sidecar -> App : Config(configuration)
Else of ConfigurationID is Null and xAPPRestarts > MaxStartAttempts then
Sidecar -> DMS : Fatal Error, don't restart
Else
Sidecar -> App : Config(configMap.configuration)
Alt If successful then
Sidecar -> AppMgr : POST ../configSchemas {configMap.configurationSchema}
Note left : AppMgr simply returns success, nothing for it to do
Autonumber 10
Sidecar -> AppMgr : POST ../configurations {configMap.configuration}
Note left : rAppMgr simply returns success, nothing for it to do
Else
Autonumber 13
Sidecar -> App : Restart
App -> DMS : Internal Error, restart
Sidecar -> DMS : Internal Error, restart
End if
End if
@enduml
