AWSTemplateFormatVersion: "2010-09-09"

Parameters:
  AppId:
    Description: An application ID that is prefixed to resource names
    Type: String

  EnvId:
    Description: An environment ID that is prefixed to resource names
    Type: String

  ImageTag:
    Description: An image tag that is used in ECS task definition
    Type: String

Resources:
  #----------------------------------------------------------#
  # Backend1
  #----------------------------------------------------------#
  Backend1EcsService:
    Type: AWS::ECS::Service
    Properties:
      ServiceName: !Sub "${AppId}-${EnvId}-backend1-ecs-service"
      Cluster: {"Fn::ImportValue": !Sub "${AppId}-${EnvId}-ecs-cluster-id"}
      LaunchType: FARGATE
      DesiredCount: 1
      EnableExecuteCommand: true
      DeploymentController:
        Type: ECS
      NetworkConfiguration:
        AwsvpcConfiguration:
          AssignPublicIp: DISABLED
          Subnets:
            - {"Fn::ImportValue": !Sub "${AppId}-${EnvId}-private-subnet-1"}
            - {"Fn::ImportValue": !Sub "${AppId}-${EnvId}-private-subnet-2"}
          SecurityGroups:
            - {"Fn::ImportValue": !Sub "${AppId}-${EnvId}-backend-layer-ecs-sg-id"}
      TaskDefinition: !Ref Backend1EcsTaskDefinition
      ServiceConnectConfiguration:
        Enabled: True
        LogConfiguration: 
          LogDriver: awslogs
          Options:
            awslogs-create-group: True
            awslogs-group: {"Fn::ImportValue": !Sub "${AppId}-${EnvId}-ecs-log-group-name"}
            awslogs-region: !Ref AWS::Region
            awslogs-stream-prefix: backend1
        Namespace: {"Fn::ImportValue": !Sub "${AppId}-${EnvId}-cloud-map-namespace-name"}
        Services:
          - ClientAliases:
              - DnsName: !Sub
                  - ${Backend1ServiceName}.${Namespace}
                  - Backend1ServiceName: {"Fn::ImportValue": !Sub "${AppId}-${EnvId}-backend1-cloud-map-service-name"}
                    Namespace: {"Fn::ImportValue": !Sub "${AppId}-${EnvId}-cloud-map-namespace-name"}
                Port: 80
            DiscoveryName: backend1
            PortName: web

  Backend1EcsTaskDefinition:
    Type: AWS::ECS::TaskDefinition
    Properties:
      ContainerDefinitions:
        - Name: "backend1-app"
          Image: !Sub
            - "${EcrRepositoryUri}:${ImageTag}"
            - EcrRepositoryUri: {"Fn::ImportValue": !Sub "${AppId}-${EnvId}-backend1-ecr-repository-uri"}
              ImageTag: !Ref ImageTag
          Environment:
            - Name: DYNAMO_DB_TABLE_NAME
              Value: {"Fn::ImportValue": !Sub "${AppId}-${EnvId}-dynamodb-table-name"}
            - Name: AWS_DEFAULT_REGION
              Value: !Ref AWS::Region
          LinuxParameters:
            InitProcessEnabled: True
          PortMappings:
            - ContainerPort: 80
              Name: web
              Protocol: tcp
          HealthCheck:
            Command:
              - "CMD-SHELL"
              - "curl -f http://localhost/health || exit 1"
            Interval: 10
            Timeout: 5
            StartPeriod: 10
            Retries: 2
          LogConfiguration:
            LogDriver: awslogs
            Options:
              awslogs-create-group: True
              awslogs-group: {"Fn::ImportValue": !Sub "${AppId}-${EnvId}-ecs-log-group-name"}
              awslogs-region: !Ref AWS::Region
              awslogs-stream-prefix: backend1
        #------------------------------------------------------------#
        # X-Ray daemon container (side-car) definition for ECS Task
        # - https://docs.aws.amazon.com/xray/latest/devguide/xray-daemon-ecs.html
        # - https://gallery.ecr.aws/xray/aws-xray-daemon
        #------------------------------------------------------------#
        - Name: "backend1-xray-daemon"
          Image: public.ecr.aws/xray/aws-xray-daemon
          PortMappings:
            - ContainerPort: 2000
              Protocol: udp
          LogConfiguration:
            LogDriver: awslogs
            Options:
              awslogs-create-group: True
              awslogs-group: {"Fn::ImportValue": !Sub "${AppId}-${EnvId}-ecs-log-group-name"}
              awslogs-region: !Ref AWS::Region
              awslogs-stream-prefix: backend1
        #------------------------------------------------------------#
      Family: !Sub "${AppId}-${EnvId}-backend1"
      Cpu: 1024
      Memory: 2048
      NetworkMode: awsvpc
      RequiresCompatibilities:
        - FARGATE
      ExecutionRoleArn: {"Fn::ImportValue": !Sub "${AppId}-${EnvId}-ecs-task-execution-role-arn"}
      TaskRoleArn: {"Fn::ImportValue": !Sub "${AppId}-${EnvId}-ecs-task-role-arn"}
  #----------------------------------------------------------#