AWSTemplateFormatVersion: 2010-09-09

Description: Creating greeting service

Parameters:
  PrivateSubnet1:
    Type: String
  PrivateSubnet2:
    Type: String
  PrivateALB:
    Type: String
  ECSCluster:
    Type: String
  VPC:
    Type: String
  SecurityGroup:
    Type: String

Resources:
  taskdefinition:
    Type: 'AWS::ECS::TaskDefinition'
    Properties:
      RequiresCompatibilities:
        - "FARGATE"
      Cpu: 256
      Memory: 1GB
      ContainerDefinitions:
        - Name: Greeting
          Cpu: 10
          Image: arungupta/greeting
          Memory: 500
          PortMappings:
            - ContainerPort: 8081
      NetworkMode: awsvpc

  service:
    Type: 'AWS::ECS::Service'
    DependsOn: listener
    Properties:
      Cluster: !Ref ECSCluster
      DesiredCount: 1
      HealthCheckGracePeriodSeconds: 60
      LaunchType: FARGATE
      LoadBalancers:
        - TargetGroupArn: !Ref targetgroup001
          ContainerPort: 8081
          ContainerName: Greeting
      NetworkConfiguration:
        AwsvpcConfiguration:
          AssignPublicIp: ENABLED
          SecurityGroups:
            - !Ref SecurityGroup
          Subnets:
            - !Ref PrivateSubnet1
            - !Ref PrivateSubnet2
      TaskDefinition: !Ref taskdefinition
      ServiceName: greeting

  targetgroup001:
    Type: AWS::ElasticLoadBalancingV2::TargetGroup
    Properties:
      HealthCheckIntervalSeconds: 60
      UnhealthyThresholdCount: 10
      HealthCheckPath: /resources/greeting
      Name: greeting
      Port: 8081
      Protocol: HTTP
      VpcId: !Ref VPC
      TargetType: ip

  listener:
      Type: AWS::ElasticLoadBalancingV2::Listener
      Properties:
        DefaultActions:
          - Type: forward
            TargetGroupArn:
              Ref: targetgroup001
        LoadBalancerArn: !Ref PrivateALB
        Port: 8081
        Protocol: HTTP