@startuml
autonumber


participant "Twoliter Host" as user
box "Twoliter Container"
participant "Twoliter Container" as tc
participant "Cargo" as cargo
participant "Buildsys" as buildsys
end box
box "SDK"
participant "SDK Container" as sdk
end box

user -> tc : twoliter build variant
tc -> cargo : cargo make variant
cargo -> buildsys : cargo build variant\ncargo build kit(s)\ncargo build package(s)\nbuildsys build-package
buildsys -> sdk : rpm build package.spec
buildsys <- sdk : package.rpm
cargo -> buildsys : buildsys build-kit
buildsys -> sdk : rpm build kit.spec
buildsys <- sdk : kit.rpm
cargo <- buildsys : kit.rpm
cargo -> buildsys : buildsys aggregate-kits
cargo <- buildsys : aggregated kits docker image
cargo -> buildsys : buildsys build-variant
buildsys -> sdk : rpm2img
buildsys <- sdk : bottlerocket.img
cargo <- buildsys : bottlerocket.img
@enduml