PlantUML Web Server

@startuml
!include https://raw.githubusercontent.com/plantuml-stdlib/C4-PlantUML/master/C4_Component.puml

' Update the generic boundary style and the "system", "enterprise", "container" boundaries styles too
UpdateBoundaryStyle($bgColor="gold", $fontColor="brown", $borderColor="brown")
' (Re-)Updates the system boundary styles; re-set $bgColor avoids '(no back color)' in legend too
UpdateSystemBoundaryStyle($bgColor="gold", $fontColor="white", $borderColor="white")

Boundary(b, "A Boundary") {
}

Container_Boundary(cb, "A Container Boundary") {
}

System_Boundary(sb, "A System Boundary") {
}

' defines a new border style incl. new border type
AddBoundaryTag("repository", $bgColor="green", $fontColor="white", $borderColor="white", $shadowing="true", $shape = RoundedBoxShape(), $type="GitHub repository")

Boundary(c4Respository, "plantuml-stdlib/C4-PlantUML", $tags="repository") {
  Component(readMe, "README.md", "Markdown")
}

' boundary tags are internally extended with '_boundary' that it uses a different name space
' this enables different element and boundary styles for the same tag name
AddBoundaryTag("v1", $bgColor="lightgreen", $fontColor="green", $borderColor="green")
AddElementTag("v1", $bgColor="lightred", $fontColor="red", $borderColor="red")

Boundary(anotherBoundary, "Another Boundary", $type="BOUNDARY TYPE", $tags="v1") {
  Component(anotherComponent, "Another Component", $techn="COMPONENT TYPE", $tags="v1", $descr="Component and boundary use different tag name spaces that both v1 tags can use different styles")
}

Lay_R(b, cb)
Lay_R(cb, sb)

Lay_D(b, c4Respository)

Lay_R(c4Respository, anotherBoundary)

SHOW_LEGEND()
@enduml

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