template.yaml

AWSTemplateFormatVersion: '2010-09-09'
Description: test-ecs-app
Parameters:
  SubnetId:
    Type: String
    Default: subnet-ec00f1a4
Resources:
  EcsSecurityGroup:
    Type: AWS::EC2::SecurityGroup
    Properties:
      GroupDescription: "Security Group for ECS."
  EcsSecurityGroupIngress:
    Type: AWS::EC2::SecurityGroupIngress
    Properties:
      GroupId: !GetAtt EcsSecurityGroup.GroupId
      IpProtocol: tcp
      FromPort: '80'
      ToPort: '80'
      CidrIp: 0.0.0.0/0
  EcsSecurityGroupEgress:
    Type: AWS::EC2::SecurityGroupEgress
    Properties:
      GroupId: !GetAtt EcsSecurityGroup.GroupId
      IpProtocol: "-1"
      CidrIp: 0.0.0.0/0
  IamEcsTaskExecRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: '2008-10-17'
        Statement:
          - Action: sts:AssumeRole
            Principal:
              Service: ecs-tasks.amazonaws.com
            Effect: Allow
      MaxSessionDuration: 3600
      Path: "/"
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/service-role/AmazonECSTaskExecutionRolePolicy
  IamEcsAppAutoscalingRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: '2012-10-17'
        Statement:
          - Action: sts:AssumeRole
            Effect: Allow
            Principal:
              Service: ecs.application-autoscaling.amazonaws.com
      MaxSessionDuration: 3600
      Path: "/"
  TestQueue:
    Type: AWS::SQS::Queue
    Properties:
      DelaySeconds: '0'
      MaximumMessageSize: '262144'
      MessageRetentionPeriod: '345600'
      ReceiveMessageWaitTimeSeconds: '0'
      VisibilityTimeout: '30'
  TestAlarm:
    Type: AWS::CloudWatch::Alarm
    Properties:
      ActionsEnabled: 'true'
      ComparisonOperator: GreaterThanOrEqualToThreshold
      EvaluationPeriods: '1'
      MetricName: ApproximateNumberOfMessagesVisible
      Namespace: AWS/SQS
      Period: '300'
      Statistic: Average
      Threshold: '0.0'
      AlarmActions:
      - !Ref TestAppAutoscalingScalingPolicy
      Dimensions:
      - Name: QueueName
        Value: !GetAtt TestQueue.QueueName
  # ECS
  TestCluster:
    Type: AWS::ECS::Cluster
  TestService:
    Type: AWS::ECS::Service
    Properties:
      Cluster: !Ref TestCluster
      DesiredCount: 0
      LaunchType: FARGATE
      NetworkConfiguration:
        AwsvpcConfiguration:
          AssignPublicIp: ENABLED
          SecurityGroups:
            - !GetAtt EcsSecurityGroup.GroupId
          Subnets:
            - !Ref SubnetId
      TaskDefinition: !Ref TestTaskDefinition
  TestTaskDefinition:
    Type: AWS::ECS::TaskDefinition
    Properties:
      Memory: 512
      Cpu: 256
      ExecutionRoleArn: !GetAtt IamEcsTaskExecRole.Arn
      Family: "test-task-definition"
      NetworkMode: awsvpc
      RequiresCompatibilities:
        - FARGATE
      ContainerDefinitions:
        -
          Name: test-container-definition
          Command:
            - "date"
          Image: "busybox"
          LogConfiguration:
            LogDriver: awslogs
            Options:
              awslogs-group: !Ref TestTaskLogsLogGroup
              awslogs-region: ap-northeast-1
              awslogs-stream-prefix: ecs
  TestTaskLogsLogGroup:
    Type: AWS::Logs::LogGroup
    Properties:
      LogGroupName: "/ecs/test-task-logs-loggroup"


  # AutoScaling
  TestAppAutoscalingScalableTarget:
    Type: AWS::ApplicationAutoScaling::ScalableTarget
    Properties:
      MaxCapacity: 2
      MinCapacity: 0
      ResourceId:
        !Join
        - '/'
        - - 'service'
          - !Ref TestCluster
          - !GetAtt TestService.Name
      RoleARN: !GetAtt IamEcsAppAutoscalingRole.Arn
      ScalableDimension: ecs:service:DesiredCount
      ServiceNamespace: ecs
  TestAppAutoscalingScalingPolicy:
    Type : AWS::ApplicationAutoScaling::ScalingPolicy
    Properties:
      PolicyName: 'ScalePolicy'
      PolicyType: StepScaling
      ScalingTargetId: !Ref TestAppAutoscalingScalableTarget
      StepScalingPolicyConfiguration:
        AdjustmentType: ExactCapacity
        Cooldown: 300
        MetricAggregationType: Average
        StepAdjustments:
          - ScalingAdjustment: 0
            MetricIntervalLowerBound: 0
            MetricIntervalUpperBound: 1
          - ScalingAdjustment: 1
            MetricIntervalLowerBound: 1
            MetricIntervalUpperBound: 2
          - ScalingAdjustment: 2
            MetricIntervalLowerBound: 2