Parameters:
  ProjectName:
    Type: String
    Description: Project name to link stacks
    Default: am-ecs-multi-account

  MeshName:
    Type: String
    Description: Name of the shared mesh
    Default: yelb

  MeshOwner:
    Type: String
    Description: Account ID of the owner of the mesh

Resources:
  UINode:
    Type: AWS::AppMesh::VirtualNode
    Properties:
      MeshName: !Ref MeshName
      MeshOwner: !Ref MeshOwner
      VirtualNodeName: yelb-ui-vn
      Spec:
        Listeners:
          - PortMapping:
              Port: 80
              Protocol: http
        Backends:
          - VirtualService:
              VirtualServiceName: yelb-appserver
        ServiceDiscovery:
          DNS:
            Hostname: !Sub "yelb-ui.green.${ProjectName}.local"

  UIService:
    DependsOn:
      - UINode
    Type: AWS::AppMesh::VirtualService
    Properties:
      MeshName: !Ref MeshName
      MeshOwner: !Ref MeshOwner
      VirtualServiceName: yelb-ui
      Spec:
        Provider:
          VirtualNode:
            VirtualNodeName: yelb-ui-vn

  AppserverNode:
    Type: AWS::AppMesh::VirtualNode
    Properties:
      MeshName: !Ref MeshName
      MeshOwner: !Ref MeshOwner
      VirtualNodeName: yelb-appserver-vn
      Spec:
        Listeners:
          - PortMapping:
              Port: 4567
              Protocol: http
        Backends:
          - VirtualService:
              VirtualServiceName: yelb-db
          - VirtualService:
              VirtualServiceName: redis-server
        ServiceDiscovery:
          DNS:
            Hostname: !Sub "yelb-appserver.green.${ProjectName}.local"

  AppserverService:
    DependsOn:
      - AppserverNode
    Type: AWS::AppMesh::VirtualService
    Properties:
      MeshName: !Ref MeshName
      MeshOwner: !Ref MeshOwner
      VirtualServiceName: yelb-appserver
      Spec:
        Provider:
          VirtualNode:
            VirtualNodeName: yelb-appserver-vn