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

title Component diagram for SnowMachineConfig controller

Person(user, "EKS-A user", "Manages EKS-A clusters")
Container(kubeApiServer, "Kubernetes API server", "Go", "Provides read/write access to the kubernetes API objects stored in the etcd server and allows to subscribe to events when they change")

Container_Boundary(snowMachineConfigController, "Snow MachineConfig Controller") {
    Component(snowMachineConfigReconciler, "SnowMachineConfig Reconciler", "K8s controller-runtime Reconciler", "Runs validations for SnowMAchineConfig that require external API calls (eg. Snow endpoint)")
    Component(awsClient, "AWS API client", "aws-sdk-go-v2")

    Rel(snowMachineConfigReconciler, awsClient, "Uses")
}

Component_Ext(snowAPI, "Snow API endpoint")
Rel(awsClient, snowAPI, "Makes API calls", "JSON/HTTPS")

Rel(user, kubeApiServer, "Writes EKS-A API objects", "JSON/HTTPS")

Rel(snowMachineConfigReconciler, kubeApiServer, "Subscribes to API events", "controller-runtime JSON/HTTPS")

SHOW_LEGEND()
@enduml