@startuml
' configures the library
!global $INCLUSION_MODE="local"
!global $LIB_BASE_LOCATION=".."

' loads the library's bootstrap
!include $LIB_BASE_LOCATION/bootstrap.puml

' loads the package bootstrap
include('c4model/bootstrap')

include('c4model/Boundary/DeploymentNodeBoundary')
include('c4model/Element/InfrastructureNode')
include('c4model/Element/Container')
include('c4model/Element/Database')

Title("Spring PetClinic", "Deployment Diagram")
left to right direction

DeploymentNodeBoundary("aws", "Amazon Web Services") {
  DeploymentNodeBoundary("region", "US-East-1") {
    InfrastructureNode("rout53", "Route 53", "Highly available and scalable cloud DNS service.")
    InfrastructureNode("ld", "Elastic Load Balancer", "Automatically distributes incoming application traffic.")
    DeploymentNodeBoundary("webapp_ec2_auto", "Autoscaling group") {
      DeploymentNodeBoundary("webapp_ec2", "Amazon EC2") {
        Container("app", "Web Application", "Allows employee to view and manage information regarding the veterinarians, the clients and their pets.", "Java and Spring Boot")
      }
    }
    DeploymentNodeBoundary("rds", "Amazon RDS") {
      DeploymentNodeBoundary("mysql", "MySQL") {
        Database("database", "Database", "Stores information regarding the veterinarians, the clients and their pets.", "Relational database schema")
      }
    }
  }
}

rout53 ..> ld : Relationship("Forwards\nrequest to", "HTTPS")
ld ..> app : Relationship("Forwards\nrequest to", "HTTPS")
app ..> database : Relationship("Reads from and \nwrites to", "MySQL Protocol/SSL")

@enduml