mesh.yaml

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

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

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

  EchoServerNode:
    Type: AWS::AppMesh::VirtualNode
    Properties:
      MeshName: !GetAtt Mesh.MeshName
      VirtualNodeName: echo_server
      Spec:
        Listeners:
        - PortMapping:
            Port: 8080
            Protocol: grpc
          HealthCheck:
            HealthyThreshold: 2
            IntervalMillis: 5000
            TimeoutMillis: 2000
            UnhealthyThreshold: 3
            Port: 8080
            Protocol: grpc
        ServiceDiscovery:
          AWSCloudMap:
            NamespaceName: !Sub '${ProjectName}.local'
            ServiceName: echo_server

  VirtualRouter:
    Type: AWS::AppMesh::VirtualRouter
    Properties:
      MeshName: !GetAtt Mesh.MeshName
      VirtualRouterName: virtual-router
      Spec:
        Listeners:
        - PortMapping:
            Port: 8080
            Protocol: grpc

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

  Route:
    DependsOn:
     - VirtualRouter
     - EchoServerNode
    Type: AWS::AppMesh::Route
    Properties:
      MeshName: !GetAtt Mesh.MeshName
      VirtualRouterName: virtual-router
      RouteName: route
      Spec:
        GrpcRoute:
          Action:
            WeightedTargets:
            - VirtualNode: echo_server
              Weight: 100
          Match:
            ServiceName: proto.echo.EchoService