コンテナベースのアプリケーションに対して Application Signals の設定全般を CDK で行ってみた

new application_signals_alpha.ApplicationSignalsIntegration(
  this,
  "ApplicationSignalsIntegration",
  {
    serviceName: "sample-ecs-app",
    taskDefinition: taskDefinition,
    instrumentation: {
      sdkVersion: application_signals_alpha.NodeInstrumentationVersion.V0_6_0,
    },
    cloudWatchAgentSidecar: {
      containerName: "ecs-cwagent",
      enableLogging: true,
      cpu: 256,
      memoryLimitMiB: 512,
    },
  }
);

// Application Signals Service Role
new application_signals.CfnDiscovery(this, "ApplicationSignalsServiceRole", {});

// ECS Task Definition
const taskDefinition = new ecs.FargateTaskDefinition(this, "TaskDefinition", {
  cpu: 512,
  memoryLimitMiB: 1024,
  taskRole: taskRole,
  executionRole: taskExecutionRole,
});
const ecsContainer = taskDefinition.addContainer("App", {
  image: ecs.ContainerImage.fromEcrRepository(
    ecr.Repository.fromRepositoryName(
      this,
      "AppRepository",
      props.repositoryName
    ),
    props.imageTag
  ),
  essential: true,
  secrets: {
    DATABASE_USER: ecs.Secret.fromSecretsManager(dbSecret, "username"),
    DATABASE_PASSWORD: ecs.Secret.fromSecretsManager(dbSecret, "password"),
    DATABASE_HOST: ecs.Secret.fromSecretsManager(dbSecret, "host"),
    DATABASE_NAME: ecs.Secret.fromSecretsManager(dbSecret, "dbname"),
  },
  logging: ecs.LogDrivers.awsLogs({
    streamPrefix: "ecs",
    logGroup: new logs.LogGroup(this, "AppLogGroup", {
      logGroupName: `/ecs/${props.repositoryName}`,
      retention: logs.RetentionDays.ONE_WEEK,
      removalPolicy: cdk.RemovalPolicy.DESTROY,
    }),
  }),
});
ecsContainer.addPortMappings({
  containerPort: 80,
});

new application_signals_alpha.ApplicationSignalsIntegration(
  this,
  "ApplicationSignalsIntegration",
  {
    serviceName: "sample-ecs-app",
    taskDefinition: taskDefinition,
    instrumentation: {
      sdkVersion: application_signals_alpha.NodeInstrumentationVersion.V0_6_0,
    },
    cloudWatchAgentSidecar: {
      containerName: "ecs-cwagent",
      enableLogging: true,
      cpu: 256,
      memoryLimitMiB: 512,
    },
  }
);

export class MonitoringStack extends cdk.Stack {
  constructor(scope: Construct, id: string, props: MonitoringStackProps) {
    super(scope, id);

    // SLO for getUserAvailability - 可用性監視
    const getUserAvailabilitySLO =
      new application_signals.CfnServiceLevelObjective(
        this,
        "GetUserAvailabilitySLO",
        {
          name: "getUserAvailability",
          requestBasedSli: {
            requestBasedSliMetric: {
              keyAttributes: {
                Environment: `ecs:${props.clusterName}`,
                Name: props.serviceName,
                Type: "Service",
              },
              operationName: "GET /users",
              metricType: "AVAILABILITY",
            },
          },
          goal: {
            attainmentGoal: 99.9,
            warningThreshold: 60.0,
            interval: {
              rollingInterval: {
                durationUnit: "DAY",
                duration: 1,
              },
            },
          },
        }
      );

    // SLO for getUserLatency - レイテンシ監視
    const getUserLatencySLO = new application_signals.CfnServiceLevelObjective(
      this,
      "GetUserLatency",
      {
        name: "getUserLatency",
        requestBasedSli: {
          requestBasedSliMetric: {
            keyAttributes: {
              Environment: `ecs:${props.clusterName}`,
              Name: props.serviceName,
              Type: "Service",
            },
            operationName: "GET /users",
            metricType: "LATENCY",
          },
          comparisonOperator: "LessThan",
          metricThreshold: 300,
        },
        goal: {
          attainmentGoal: 99.9,
          warningThreshold: 60.0,
          interval: {
            rollingInterval: {
              durationUnit: "DAY",
              duration: 1,
            },
          },
        },
      }
    );
  }
}