How to move the messagge between box from left to right with ortho layout?

[automataIA]

How to move the message between box from left to right. Example message on the right:

[Potherca]

As far as I am aware, PlantUML does not provide a skinparam or <style> element to position edge labels (i.e. arrow text messages).

If you could post the diagram (or a realistic representation of the diagram if it is confidential), we might be able to figure out a solution.

[automataIA]

this

@startuml
!include https://raw.githubusercontent.com/plantuml-stdlib/C4-PlantUML/master/C4_Container.puml

!theme C4_united from https://raw.githubusercontent.com/plantuml-stdlib/C4-PlantUML/master/themes

'LAYOUT_WITH_LEGEND()
    
skinparam {
    linetype ortho
    ArrowThickness 3
    roundcorner 20
    maxMessageSize 300
    wrapWidth 300
}

Person(developer, "Developer", "GitLab User")
System_Boundary(pipeline, "GitLab CI/CD Pipeline") {
    Container(security, "Security Stage", "GitLab CI", "SAST & Dependency Scanning")
    Container(test, "Test Stage", "GitLab CI", "Unit Tests, Coverage & Linting")
    Container(build, "Build Stage", "GitLab CI", "Docker Build & Push")
    Container(deploy, "Deploy Stage", "GitLab CI", "Staging & Production Deploy")
}

System_Ext(registry, "Container Registry", "GitLab Container Registry")
System_Ext(production, "Production Environment", "Kubernetes/Cloud")
System_Ext(staging, "Staging Environment", "Kubernetes/Cloud")

Rel_Right(developer, pipeline, "Pushes code")
Rel(security, test, "Passes security checks")
Rel(test, build, "Passes tests")
Rel(build, registry, "Pushes container image")
Rel(deploy, staging, "Deploys to staging")
Rel(deploy, production, "Manual deploy to production")

SHOW_FLOATING_LEGEND()
@enduml

[kirchsth]

Hi @automataIA,

independent of the original problem, the !theme should be every time the first include (maybe it was only a typo in your sample, but the Rel-labels are not visible based on that)

@startuml
!theme C4_united from https://raw.githubusercontent.com/plantuml-stdlib/C4-PlantUML/master/themes
!include https://raw.githubusercontent.com/plantuml-stdlib/C4-PlantUML/master/C4_Container.puml
...

BR Helmut

[automataIA]

Thank you for the tips. But there are some command to move the message like Passes tests from left to right.

[Potherca]

Ah, okay, I see what the problem is.

As stated on https://plantuml.com/layout-engines, when using skinparam linetype ortho the label position is wrong.

Apparently this is a known bug (see plantuml/backlog#11)

Some details can also be found in https://forum.plantuml.net/1608

As of this writing, there is no fix for this behavior, other than not using ortho layout. Sorry.

[automataIA]

Unlucky