C4Container.puml

@startuml
!include https://raw.githubusercontent.com/plantuml-stdlib/C4-PlantUML/master/C4_Container.puml
!define DEVICONS https://raw.githubusercontent.com/tupadr3/plantuml-icon-font-sprites/master/devicons2
!define CLOUDICONS https://raw.githubusercontent.com/plantuml/plantuml-stdlib/master/cloudinsight
!include DEVICONS/react_original.puml
!include DEVICONS/postgresql.puml
!include CLOUDICONS/kafka.puml

title SummarisationSample: Containers

Person(customer, "Customer")
Person(manager, "Manager")

System_Boundary(summarisationSample, "Summarisation Sample") {
    Container(customerSite, "Customer Website", "React", "Customer website, through which they manage their orders", , $sprite="react_original")
    Container(customerGateway, "Customer API Gateway", "C#, WebAPI", "API Gateway through which the customer website accesses underlying services")
    Rel(customerSite, customerGateway, "Uses", "HTTPS")

    Container(managementSite, "Management Website", "React", "Management website, through which managers will manage the system", $sprite="react_original")
    Container(managementGateway, "Customer API Gateway", "C#, WebAPI", "API Gateway through which the management website accesses underlying services")
    Rel(managementSite, managementGateway, "Uses", "HTTPS")

    ContainerDb(kafka, "Message Bus", "Kafka", "Messaging", $sprite="kafka")

    Container(orderService, "Order Service", "C#, WebAPI", "Order microservice, responsible for managing orders")
    ContainerDb(ordersDB, "Orders Database", "PostgreSQL", "Holds order details and status", $sprite="postgresql")
    Rel(orderService, ordersDB, "CRUD", "Entity Framework")
    Rel(orderService, kafka, "Publishes Messages", "TCP")
    Rel(customerGateway, orderService, "Place Order", "HTTPS")

    Container(activityService, "Activity Service", "C#, WebAPI", "Activity microservice, responsible for tracking important system activities")
    ContainerDb(activitiesDB, "Activities Database", "PostgreSQL", "Holds summaries/statistics of the activities performed in the system", $sprite="postgresql")
    Rel(activityService, activitiesDB, "CRUD", "Entity Framework")
    Rel(activityService, kafka, "Subscribes to Messages", "TCP")
    Rel(managementGateway, activityService, "Get Summary", "HTTPS")
}

Rel(customer, customerSite, "Places Order", "HTTPS")
Rel(manager, managementSite, "Requests Summary", "HTTPS")

@enduml