本家の踏襲のため、Dockerfileを変更

scripts/aws/lib/construct/backend.ts

@@ -0,0 +1,109 @@
+import { Duration } from 'aws-cdk-lib'
+import { Construct } from 'constructs';
+import {
+    aws_ec2 as ec2,
+    aws_ecs as ecs,
+    aws_ecr as ecr,
+    aws_rds as rds,
+    aws_servicediscovery as servicediscovery,
+    aws_iam as iam,
+    aws_logs as logs,
+    aws_elasticloadbalancingv2 as elb,
+} from 'aws-cdk-lib';
+import * as dotenv from 'dotenv';
+const path = require('path');
+dotenv.config({path: path.join(__dirname, "../../.env")});
+
+console.log(process.env.LANGFLOW_AUTO_LOGIN);
+console.log(process.env.LANGFLOW_SUPERUSER);
+console.log(process.env.LANGFLOW_SUPERUSER_PASSWORD);
+
+interface BackEndProps {
+  cluster: ecs.Cluster
+  ecsBackSG:ec2.SecurityGroup
+  ecrBackEndRepository:ecr.Repository
+  backendTaskRole: iam.Role;
+  backendTaskExecutionRole: iam.Role;
+  backendLogGroup: logs.LogGroup;
+  cloudmapNamespace: servicediscovery.PrivateDnsNamespace;
+  rdsCluster:rds.DatabaseCluster
+  alb:elb.IApplicationLoadBalancer
+  arch:ecs.CpuArchitecture
+}
+
+export class BackEndCluster extends Construct {
+  readonly backendServiceName: string 
+  
+  constructor(scope: Construct, id: string, props:BackEndProps) {
+    super(scope, id)
+    const containerPort = 7860
+    // Secrets ManagerからDB認証情報を取ってくる
+    const secretsDB = props.rdsCluster.secret!;
+
+    // Create Backend Fargate Service
+    const backendTaskDefinition = new ecs.FargateTaskDefinition(
+      this,
+      'BackEndTaskDef',
+      {
+          memoryLimitMiB: 3072,
+          cpu: 1024,
+          executionRole: props.backendTaskExecutionRole,
+          runtimePlatform:{
+            operatingSystemFamily: ecs.OperatingSystemFamily.LINUX,
+            cpuArchitecture: props.arch,
+          },
+          taskRole: props.backendTaskRole,
+      }
+    );
+    backendTaskDefinition.addContainer('backendContainer', {
+      image: ecs.ContainerImage.fromEcrRepository(props.ecrBackEndRepository, "latest"),
+      containerName:'langflow-back-container',
+      logging: ecs.LogDriver.awsLogs({
+        streamPrefix: 'my-stream',
+        logGroup: props.backendLogGroup,
+      }),
+      environment:{
+        // user:pass@endpoint:port/dbname
+        // "LANGFLOW_DATABASE_URL" : `mysql+pymysql://${username}:${password}@${host}:3306/${dbname}`,
+        // "LANGFLOW_DATABASE_URL" : "sqlite:///./langflow.db",
+        // "LANGFLOW_LANGCHAIN_CACHE" : "SQLiteCache",
+        // "LANGFLOW_AUTO_LOGIN" : "false",
+        // "LANGFLOW_SUPERUSER" : "admin",
+        // "LANGFLOW_SUPERUSER_PASSWORD" : "1234567"
+        "LANGFLOW_AUTO_LOGIN" : process.env.LANGFLOW_AUTO_LOGIN ?? 'false',
+        "LANGFLOW_SUPERUSER" : process.env.LANGFLOW_SUPERUSER ?? "admin",
+        "LANGFLOW_SUPERUSER_PASSWORD" : process.env.LANGFLOW_SUPERUSER_PASSWORD ?? "123456"
+      },
+      portMappings: [
+          {
+              containerPort: containerPort,
+              protocol: ecs.Protocol.TCP,
+          },
+      ],
+      // Secretの設定
+      secrets: {
+        "dbname": ecs.Secret.fromSecretsManager(secretsDB, 'dbname'),
+        "username": ecs.Secret.fromSecretsManager(secretsDB, 'username'),
+        "host": ecs.Secret.fromSecretsManager(secretsDB, 'host'),
+        "password": ecs.Secret.fromSecretsManager(secretsDB, 'password'),
+      },
+    });
+    this.backendServiceName = 'backend'
+    const backendService = new ecs.FargateService(this, 'BackEndService', {
+      cluster: props.cluster,
+      serviceName: this.backendServiceName,
+      taskDefinition: backendTaskDefinition,
+      enableExecuteCommand: true,
+      securityGroups: [props.ecsBackSG],
+      cloudMapOptions: {
+        cloudMapNamespace: props.cloudmapNamespace,
+        containerPort: containerPort,
+        dnsRecordType: servicediscovery.DnsRecordType.A,
+        dnsTtl: Duration.seconds(10),
+        name: this.backendServiceName
+      },
+      vpcSubnets: { subnetType: ec2.SubnetType.PRIVATE_WITH_EGRESS },
+    });
+
+  }
+}

scripts/aws/lib/construct/db.ts

@@ -0,0 +1,64 @@
+import { Construct } from 'constructs';
+import * as ec2 from 'aws-cdk-lib/aws-ec2'
+import * as rds from "aws-cdk-lib/aws-rds";
+
+interface RdsProps {
+  vpc: ec2.Vpc
+  dbSG:ec2.SecurityGroup
+}
+
+export class Rds extends Construct{
+  readonly rdsCluster: rds.DatabaseCluster
+
+  constructor(scope: Construct, id:string, props: RdsProps){
+    super(scope, id);
+
+    const {vpc, dbSG} = props
+    const instanceType = ec2.InstanceType.of(ec2.InstanceClass.BURSTABLE4_GRAVITON, ec2.InstanceSize.MEDIUM)
+
+    // RDSのパスワードを自動生成してSecrets Managerに格納
+    const rdsCredentials = rds.Credentials.fromGeneratedSecret('db_user',{
+      secretName: 'langflow-DbSecret',
+    })
+
+    // DB クラスターのパラメータグループ作成
+    const clusterParameterGroup = new rds.ParameterGroup(scope, 'ClusterParameterGroup',{
+      engine: rds.DatabaseClusterEngine.auroraMysql({
+        version: rds.AuroraMysqlEngineVersion.VER_3_02_0
+      }),
+      description: 'for-langflow',
+    })
+    clusterParameterGroup.bindToCluster({})
+
+    // DB インスタンスのパラメタグループ作成
+    const instanceParameterGroup = new rds.ParameterGroup(scope, 'InstanceParameterGroup',{
+      engine: rds.DatabaseClusterEngine.auroraMysql({
+        version: rds.AuroraMysqlEngineVersion.VER_3_02_0,
+      }),
+      description: 'for-langflow',
+    })
+    instanceParameterGroup.bindToInstance({})
+
+    this.rdsCluster = new rds.DatabaseCluster(scope, 'LangflowDbCluster', {
+      engine: rds.DatabaseClusterEngine.auroraMysql({
+        version: rds.AuroraMysqlEngineVersion.VER_3_02_0,
+      }),
+      storageEncrypted: true,
+      credentials: rdsCredentials,
+      instanceIdentifierBase: 'langflow-instance',
+      vpc:vpc,
+      vpcSubnets:vpc.selectSubnets({
+        subnetGroupName: 'langflow-Isolated',
+      }),
+      securityGroups:[dbSG],
+      writer: rds.ClusterInstance.provisioned("WriterInstance", {
+        instanceType: instanceType,
+        enablePerformanceInsights: true,
+        parameterGroup:instanceParameterGroup,
+      }),
+      // 2台目以降はreaders:で設定 
+      parameterGroup: clusterParameterGroup,
+      defaultDatabaseName: 'langflow',
+    })
+  }
+}

scripts/aws/lib/construct/ecr.ts

@@ -0,0 +1,78 @@
+import { RemovalPolicy } from 'aws-cdk-lib'
+import * as ecr from 'aws-cdk-lib/aws-ecr'
+import * as ecrdeploy from 'cdk-ecr-deployment'
+import * as ecs from 'aws-cdk-lib/aws-ecs'
+import * as servicediscovery from 'aws-cdk-lib/aws-servicediscovery'
+import { DockerImageAsset, Platform } from 'aws-cdk-lib/aws-ecr-assets'
+import * as path from "path";
+import { Construct } from 'constructs'
+
+
+interface ECRProps {
+  cloudmapNamespace: servicediscovery.PrivateDnsNamespace;
+  arch:ecs.CpuArchitecture;
+}
+
+export class EcrRepository extends Construct {
+  readonly ecrFrontEndRepository: ecr.Repository
+  readonly ecrBackEndRepository: ecr.Repository
+
+  constructor(scope: Construct, id: string, props: ECRProps) {
+    super(scope, id)
+
+    const imagePlatform = props.arch == ecs.CpuArchitecture.ARM64 ? Platform.LINUX_ARM64 : Platform.LINUX_AMD64
+    const backendPath = path.join(__dirname, "../../../../../", "langflow")
+    const frontendPath = path.join(__dirname, "../../../../src/", "frontend")
+    const excludeDir = ['node_modules','.git', 'cdk.out']
+    const LifecycleRule = {
+      tagStatus: ecr.TagStatus.ANY,
+      description: 'Delete more than 30 image',
+      maxImageCount: 30,
+    }
+
+    // リポジトリ作成
+    this.ecrFrontEndRepository = new ecr.Repository(scope, 'LangflowFrontEndRepository', {
+      repositoryName: 'langflow-frontend-repository',
+      removalPolicy: RemovalPolicy.RETAIN,
+      imageScanOnPush: true,
+    })
+    this.ecrBackEndRepository = new ecr.Repository(scope, 'LangflowBackEndRepository', {
+      repositoryName: 'langflow-backend-repository',
+      removalPolicy: RemovalPolicy.RETAIN,
+      imageScanOnPush: true,
+    })
+    // LifecycleRule作成
+    this.ecrFrontEndRepository.addLifecycleRule(LifecycleRule)
+    this.ecrBackEndRepository.addLifecycleRule(LifecycleRule)
+
+    // Create Docker Image Asset
+    const dockerFrontEndImageAsset = new DockerImageAsset(this, "DockerFrontEndImageAsset", {
+      directory: frontendPath,
+      file:"dev.Dockerfile",
+      buildArgs:{
+        "BACKEND_URL":`http://backend.${props.cloudmapNamespace.namespaceName}:7860`
+      },
+      exclude: excludeDir,
+      platform: imagePlatform,
+    });
+    const dockerBackEndImageAsset = new DockerImageAsset(this, "DockerBackEndImageAsset", {
+      directory: backendPath,
+      file:"dev.Dockerfile",
+      exclude: excludeDir,
+      platform: imagePlatform,
+    });
+
+    // Deploy Docker Image to ECR Repository
+    new ecrdeploy.ECRDeployment(this, "DeployFrontEndImage", {
+      src: new ecrdeploy.DockerImageName(dockerFrontEndImageAsset.imageUri),
+      dest: new ecrdeploy.DockerImageName(this.ecrFrontEndRepository.repositoryUri)
+    });
+
+    // Deploy Docker Image to ECR Repository
+    new ecrdeploy.ECRDeployment(this, "DeployBackEndImage", {
+      src: new ecrdeploy.DockerImageName(dockerBackEndImageAsset.imageUri),
+      dest: new ecrdeploy.DockerImageName(this.ecrBackEndRepository.repositoryUri)
+    });
+
+  }
+}

scripts/aws/lib/construct/frontend.ts

@@ -0,0 +1,117 @@
+import { Duration } from 'aws-cdk-lib'
+import { Construct } from 'constructs'
+import {
+  aws_ec2 as ec2,
+  aws_ecs as ecs,
+  aws_ecr as ecr,
+  aws_servicediscovery as servicediscovery,
+  aws_iam as iam,
+  aws_logs as logs,
+  aws_elasticloadbalancingv2 as elb,
+} from 'aws-cdk-lib';
+import { CpuArchitecture } from 'aws-cdk-lib/aws-ecs';
+
+interface FrontEndProps {
+  cluster:ecs.Cluster
+  ecsFrontSG:ec2.SecurityGroup
+  ecrFrontEndRepository:ecr.Repository
+  targetGroup: elb.ApplicationTargetGroup;
+  backendServiceName: string;
+  frontendTaskRole: iam.Role;
+  frontendTaskExecutionRole: iam.Role;
+  frontendLogGroup: logs.LogGroup;
+  cloudmapNamespace: servicediscovery.PrivateDnsNamespace;
+  arch:ecs.CpuArchitecture;
+}
+
+export class FrontEndCluster extends Construct {
+  constructor(scope: Construct, id: string, props:FrontEndProps) {
+    super(scope, id)
+
+    const containerPort = 3000
+    const frontendTaskDefinition = new ecs.FargateTaskDefinition(
+      this,
+      'FrontendTaskDef',
+      {
+          memoryLimitMiB: 3072,
+          cpu: 1024,
+          executionRole: props.frontendTaskExecutionRole,
+          runtimePlatform:{
+            operatingSystemFamily: ecs.OperatingSystemFamily.LINUX,
+            cpuArchitecture: props.arch,
+          },
+          taskRole: props.frontendTaskRole,
+      }
+  );
+  const frontendServiceName = 'frontend'
+  frontendTaskDefinition.addContainer('frontendContainer', {
+      image: ecs.ContainerImage.fromEcrRepository(props.ecrFrontEndRepository, "latest"),
+      containerName:'langflow-front-container',
+      environment: {
+          BACKEND_SERVICE_NAME: props.backendServiceName,
+          BACKEND_URL: `http://${props.backendServiceName}.${props.cloudmapNamespace.namespaceName}:7860/`,
+          VITE_PROXY_TARGET: `http://${props.backendServiceName}.${props.cloudmapNamespace.namespaceName}:7860/`,
+      },
+      logging: ecs.LogDriver.awsLogs({
+          streamPrefix: 'my-stream',
+          logGroup: props.frontendLogGroup,
+      }),
+      portMappings: [
+          {
+              name:frontendServiceName,
+              containerPort: containerPort,
+              protocol: ecs.Protocol.TCP,
+              appProtocol:ecs.AppProtocol.http,
+          },
+      ],
+  });
+  const frontendService = new ecs.FargateService(
+      this,
+      'FrontendService',
+      {
+        serviceName: frontendServiceName,
+        cluster: props.cluster,
+        desiredCount: 1,
+        assignPublicIp: false,
+        taskDefinition: frontendTaskDefinition,
+        enableExecuteCommand: true,
+        securityGroups: [props.ecsFrontSG],
+        cloudMapOptions: {
+          cloudMapNamespace: props.cloudmapNamespace,
+          containerPort: containerPort,
+          dnsRecordType: servicediscovery.DnsRecordType.A,
+          dnsTtl: Duration.seconds(10),
+          name: frontendServiceName
+        },
+        healthCheckGracePeriod: Duration.seconds(1000),
+      }
+  );
+
+  props.targetGroup.addTarget(frontendService);
+
+    // // Create ALB and ECS Fargate Service
+    // const frontService = new ecs_patterns.ApplicationLoadBalancedFargateService(
+    //   this,
+    //   "FrontEndService",
+    //   {
+    //     cluster: cluster,
+    //     serviceName: 'langflow-frontend-service',
+    //     cpu: 256,
+    //     memoryLimitMiB: 512,
+    //     listenerPort: 80,
+    //     assignPublicIp: true, // Public facing - ALB
+    //     taskSubnets: { subnetType: ec2.SubnetType.PRIVATE_WITH_EGRESS },
+    //     securityGroups:[ecsFrontSG],
+    //     taskImageOptions: {
+    //       family: 'langflow-taskdef',
+    //       containerName: 'langflow-front-container',
+    //       image: ecs.ContainerImage.fromEcrRepository(ecrFrontEndRepository, "latest"),
+    //       containerPort: 3000, // L2なので、TargetGroupのportが3000で設定されるはず
+    //     },
+    //     loadBalancer:alb,
+    //     openListener:false,
+    //   }
+    // );
+
+  }
+}

scripts/aws/lib/construct/iam.ts

@@ -0,0 +1,101 @@
+import { RemovalPolicy, Duration } from 'aws-cdk-lib'
+import { Construct } from 'constructs'
+import {
+  aws_rds as rds,
+  aws_iam as iam,
+} from 'aws-cdk-lib';
+
+interface IAMProps {
+  rdsCluster:rds.DatabaseCluster
+}
+
+export class EcsIAM extends Construct {
+  readonly frontendTaskRole: iam.Role;
+  readonly frontendTaskExecutionRole: iam.Role;
+  readonly backendTaskRole: iam.Role;
+  readonly backendTaskExecutionRole: iam.Role;
+
+  constructor(scope: Construct, id: string, props:IAMProps) {
+    super(scope, id)
+
+    // Policy Statements
+    // ECS Policy State
+    const ECSExecPolicyStatement = new iam.PolicyStatement({
+      sid: 'allowECSExec',
+      resources: ['*'],
+      actions: [
+        'ecr:GetAuthorizationToken',
+        'ecr:BatchCheckLayerAvailability',
+        'ecr:GetDownloadUrlForLayer',
+        'ecr:BatchGetImage',
+      ],
+    });
+    // Bedrock Policy State
+    const BedrockPolicyStatement = new iam.PolicyStatement({
+      sid: 'allowBedrockAccess',
+      resources: ['*'],
+      actions: [
+        'bedrock:*',
+      ],
+    });
+    // Kendra Policy State
+    const KendraPolicyStatement = new iam.PolicyStatement({
+      sid: 'allowKendraAccess',
+      resources: ['*'],
+      actions: [
+        'kendra:*'
+      ],
+    });
+    // Create Rag Policy
+    const RagAccessPolicy = new iam.Policy(this, 'RAGFullAccess', {
+      statements: [KendraPolicyStatement,BedrockPolicyStatement],
+    })
+    // Secrets ManagerからDB認証情報を取ってくるためのPolicy
+    const SecretsManagerPolicy = new iam.Policy(this, 'SMGetPolicy', {
+      statements: [new iam.PolicyStatement({
+        actions: ['secretsmanager:GetSecretValue'],
+        resources: [props.rdsCluster.secret!.secretArn],
+      })],
+    })
+
+    // FrontEnd Task Role
+    this.frontendTaskRole = new iam.Role(this, 'FrontendTaskRole', {
+      assumedBy: new iam.ServicePrincipal('ecs-tasks.amazonaws.com'),
+    });
+    this.frontendTaskRole.addToPolicy(ECSExecPolicyStatement);
+
+    // BackEnd Task Role
+    this.backendTaskRole = new iam.Role(this, 'BackendTaskRole', {
+      assumedBy: new iam.ServicePrincipal('ecs-tasks.amazonaws.com'),
+    });
+    // ECS Exec Policyの付与
+    this.backendTaskRole.addToPolicy(ECSExecPolicyStatement);
+    // KendraとBedrockのアクセス権付与
+    this.backendTaskRole.attachInlinePolicy(RagAccessPolicy);
+
+    // FrontEnd Task ExecutionRole 
+    this.frontendTaskExecutionRole = new iam.Role(this, 'frontendTaskExecutionRole', {
+      assumedBy: new iam.ServicePrincipal('ecs-tasks.amazonaws.com'),
+      managedPolicies: [
+        {
+          managedPolicyArn:
+            'arn:aws:iam::aws:policy/service-role/AmazonECSTaskExecutionRolePolicy',
+        },
+      ],
+    });
+
+    // BackEnd Task ExecutionRole 
+    this.backendTaskExecutionRole = new iam.Role(this, 'backendTaskExecutionRole', {
+      assumedBy: new iam.ServicePrincipal('ecs-tasks.amazonaws.com'),
+      managedPolicies: [
+        {
+          managedPolicyArn:
+            'arn:aws:iam::aws:policy/service-role/AmazonECSTaskExecutionRolePolicy',
+        },
+      ],
+    });
+  
+    this.backendTaskExecutionRole.attachInlinePolicy(SecretsManagerPolicy);
+    this.backendTaskExecutionRole.attachInlinePolicy(RagAccessPolicy);
+  }
+}

scripts/aws/lib/construct/index.ts

@@ -0,0 +1,6 @@
+export * from './db';
+export * from './ecr';
+export * from './iam';
+export * from './frontend';
+export * from './backend';
+export * from './network';

scripts/aws/lib/construct/network.ts

@@ -0,0 +1,139 @@
+import { RemovalPolicy, Duration } from 'aws-cdk-lib'
+import { Construct } from 'constructs'
+import {
+  aws_ec2 as ec2,
+  aws_ecs as ecs,
+  aws_logs as logs,
+  aws_servicediscovery as servicediscovery,
+  aws_elasticloadbalancingv2 as elb,
+} from 'aws-cdk-lib';
+
+export class Network extends Construct {
+  readonly vpc: ec2.Vpc;
+  readonly cluster: ecs.Cluster;
+  readonly alb: elb.IApplicationLoadBalancer;
+  readonly targetGroup: elb.ApplicationTargetGroup;
+  readonly cloudmapNamespace: servicediscovery.PrivateDnsNamespace;
+  readonly ecsFrontSG: ec2.SecurityGroup;
+  readonly ecsBackSG: ec2.SecurityGroup;
+  readonly dbSG: ec2.SecurityGroup;
+  readonly albSG: ec2.SecurityGroup;
+  readonly backendLogGroup: logs.LogGroup;
+  readonly frontendLogGroup: logs.LogGroup;
+
+  constructor(scope: Construct, id: string) {
+    super(scope, id)
+    const alb_listen_port=80
+    const front_service_port=3000
+    const back_service_port=7860
+
+    // VPC等リソースの作成
+    this.vpc = new ec2.Vpc(scope, 'VPC', {
+      vpcName: 'langflow-vpc',
+      ipAddresses: ec2.IpAddresses.cidr('10.0.0.0/16'),
+      maxAzs: 3,
+      subnetConfiguration: [
+        {
+          cidrMask: 24,
+          name: 'langflow-Isolated',
+          subnetType: ec2.SubnetType.PRIVATE_ISOLATED,
+        },
+        {
+          cidrMask: 24,
+          name: 'langflow-Public',
+          subnetType: ec2.SubnetType.PUBLIC,
+        },
+        {
+          cidrMask: 24,
+          name: 'langflow-Private',
+          subnetType: ec2.SubnetType.PRIVATE_WITH_EGRESS
+        },
+      ],
+      natGateways: 1,
+    })
+    // Cluster
+    this.cluster = new ecs.Cluster(this, 'EcsCluster', {
+      clusterName: 'langflow-cluster',
+      vpc: this.vpc,
+      enableFargateCapacityProviders: true,
+    });
+
+    // Private DNS
+    this.cloudmapNamespace = new servicediscovery.PrivateDnsNamespace(
+      this,
+      'Namespace',
+      {
+        name: 'ecs-deploy.com',
+        vpc: this.vpc,
+      }
+    );
+
+    // ALBに設定するセキュリティグループ
+    this.albSG = new ec2.SecurityGroup(scope, 'ALBSecurityGroup', {
+      securityGroupName: 'alb-sg',
+      description: 'for alb',
+      vpc: this.vpc,
+    })
+    this.albSG.addIngressRule(ec2.Peer.anyIpv4(), ec2.Port.tcp(alb_listen_port))
+
+    this.alb = new elb.ApplicationLoadBalancer(this,'alb',{
+      internetFacing: true, //インターネットからのアクセスを許可するかどうか指定
+      loadBalancerName: 'alb',
+      securityGroup: this.albSG, //作成したセキュリティグループを割り当てる
+      vpc:this.vpc,   
+    })
+
+    const listener = this.alb.addListener('Listener', { port: alb_listen_port });
+
+    this.targetGroup = listener.addTargets('targetGroup', {
+      port: front_service_port,
+      protocol: elb.ApplicationProtocol.HTTP,
+      healthCheck: {
+        enabled: true,
+        path: '/health',
+        healthyThresholdCount: 2,
+        unhealthyThresholdCount: 4,
+        interval: Duration.seconds(100),
+        timeout: Duration.seconds(30),
+        healthyHttpCodes: '200',
+      },
+    });
+
+    // ECS FrontEndに設定するセキュリティグループ
+    this.ecsFrontSG = new ec2.SecurityGroup(scope, 'ECSFrontEndSecurityGroup', {
+      securityGroupName: 'langflow-ecs-front-sg',
+      description: 'for langflow-front-ecs',
+      vpc: this.vpc,
+    })
+    this.ecsFrontSG.addIngressRule(this.albSG, ec2.Port.allTcp())
+
+    // ECS BackEndに設定するセキュリティグループ
+    this.ecsBackSG = new ec2.SecurityGroup(scope, 'ECSBackEndSecurityGroup', {
+      securityGroupName: 'langflow-ecs-back-sg',
+      description: 'for langflow-back-ecs',
+      vpc: this.vpc,
+    })
+    this.ecsBackSG.addIngressRule(this.ecsFrontSG, ec2.Port.tcp(back_service_port))
+
+    // RDSに設定するセキュリティグループ
+    this.dbSG = new ec2.SecurityGroup(scope, 'DBSecurityGroup', {
+      allowAllOutbound: true,
+      securityGroupName: 'langflow-db',
+      description: 'for langflow-db',
+      vpc: this.vpc,
+    })
+    // AppRunnerSecurityGroupからのポート3306:mysql(5432:postgres)のインバウンドを許可
+    this.dbSG.addIngressRule(this.ecsBackSG, ec2.Port.tcp(3306))
+
+    // Create CloudWatch Log Group
+    this.backendLogGroup = new logs.LogGroup(this, 'backendLogGroup', {
+      logGroupName: 'myapp-backend',
+      removalPolicy: RemovalPolicy.DESTROY,
+    });
+
+    this.frontendLogGroup = new logs.LogGroup(this, 'frontendLogGroup', {
+      logGroupName: 'myapp-frontend',
+      removalPolicy: RemovalPolicy.DESTROY,
+    });
+  }
+}