Parameters:
  ProjectName:
    Type: String
    Description: Project name to link stacks

Resources:
  Mesh:
    Type: AWS::AppMesh::Mesh
    Properties:
      MeshName: !Sub '${ProjectName}-mesh'

  ColorClientNode:
    Type: AWS::AppMesh::VirtualNode
    Properties:
      MeshName: !GetAtt Mesh.MeshName
      VirtualNodeName: color_client
      Spec:
        Backends:
        - VirtualService:
            VirtualServiceName: !Sub 'color_server.${ProjectName}.local'
        Listeners:
        - PortMapping:
            Port: 8080
            Protocol: http
        ServiceDiscovery:
          AWSCloudMap:
            NamespaceName: !Sub '${ProjectName}.local'
            ServiceName: color_client

  ColorServerBlueNode:
    Type: AWS::AppMesh::VirtualNode
    Properties:
      MeshName: !GetAtt Mesh.MeshName
      VirtualNodeName: color_server-blue
      Spec:
        Listeners:
        - PortMapping:
            Port: 8080
            Protocol: http2
          HealthCheck:
            HealthyThreshold: 2
            IntervalMillis: 5000
            TimeoutMillis: 2000
            UnhealthyThreshold: 3
            Port: 8080
            Path: /ping
            Protocol: http2
        ServiceDiscovery:
          AWSCloudMap:
            NamespaceName: !Sub '${ProjectName}.local'
            ServiceName: color_server
            Attributes:
            - Key: ECS_TASK_DEFINITION_FAMILY
              Value: blue

  ColorServerGreenNode:
    Type: AWS::AppMesh::VirtualNode
    Properties:
      MeshName: !GetAtt Mesh.MeshName
      VirtualNodeName: color_server-green
      Spec:
        Listeners:
        - PortMapping:
            Port: 8080
            Protocol: http2
          HealthCheck:
            HealthyThreshold: 2
            IntervalMillis: 5000
            TimeoutMillis: 2000
            UnhealthyThreshold: 3
            Port: 8080
            Path: /ping
            Protocol: http2
        ServiceDiscovery:
          AWSCloudMap:
            NamespaceName: !Sub '${ProjectName}.local'
            ServiceName: color_server
            Attributes:
            - Key: ECS_TASK_DEFINITION_FAMILY
              Value: green

  ColorServerRedNode:
    Type: AWS::AppMesh::VirtualNode
    Properties:
      MeshName: !GetAtt Mesh.MeshName
      VirtualNodeName: color_server-red
      Spec:
        Listeners:
        - PortMapping:
            Port: 8080
            Protocol: http2
          HealthCheck:
            HealthyThreshold: 2
            IntervalMillis: 5000
            TimeoutMillis: 2000
            UnhealthyThreshold: 3
            Port: 8080
            Path: /ping
            Protocol: http2
        ServiceDiscovery:
          AWSCloudMap:
            NamespaceName: !Sub '${ProjectName}.local'
            ServiceName: color_server
            Attributes:
            - Key: ECS_TASK_DEFINITION_FAMILY
              Value: red
              
  VirtualRouter:
    Type: AWS::AppMesh::VirtualRouter
    Properties:
      MeshName: !GetAtt Mesh.MeshName
      VirtualRouterName: virtual-router
      Spec:
        Listeners:
        - PortMapping:
            Port: 8080
            Protocol: http2

  VirtualService:
    DependsOn:
     - VirtualRouter
    Type: AWS::AppMesh::VirtualService
    Properties:
      MeshName: !GetAtt Mesh.MeshName
      VirtualServiceName: !Sub 'color_server.${ProjectName}.local'
      Spec:
        Provider:
          VirtualRouter:
            VirtualRouterName: virtual-router

  Route:
    DependsOn:
     - VirtualRouter
     - ColorServerRedNode
    Type: AWS::AppMesh::Route
    Properties:
      MeshName: !GetAtt Mesh.MeshName
      VirtualRouterName: virtual-router
      RouteName: route
      Spec:
        Http2Route:
          Action:
            WeightedTargets:
            - VirtualNode: color_server-red
              Weight: 1
          Match:
            Prefix: /