(aws-cdk-lib/aws-ecs-patterns): (use exist VPC for ApplicationLoadBalancedFargateService error)

[JiaTingYefei]

Describe the bug

When I tried use an exist VPC to create ECS cluster and ApplicationLoadBalancedFargateService, I got an error:
Error: There are no 'Public' subnet groups in this VPC. Available types: Deprecated_Private_NAT,Private,Deprecated_Private

The VPC has 2 public subnet and 2 private subnet.

Code below:

this.vpc = ec2.Vpc.fromVpcAttributes(this, `Vpc-carbon-mgt`, {
      vpcId: 'vpc-0a2d4755',
      availabilityZones: Fn.getAzs(),
      privateSubnetIds: 'subnet-042872beda,subnet-0f86502'.split(',')
})

this.cluster = new Cluster(this, 'ECSCluster', {
        vpc: this.vpc,
        containerInsights: true,
      });


 const metabaseService = new ApplicationLoadBalancedFargateService(this, 'MetaBase-Service', {
            platformVersion: FargatePlatformVersion.VERSION1_4,
            cluster: props.cluster,
            // taskSubnets: {subnets: [ec2.Subnet.fromSubnetId(this, '01af7912cecd', 'subnet-01af794ecd'),ec2.Subnet.fromSubnetId(this, '0e1284c734f069', 'subnet-0e1282f4f069')]},
            cpu: 1024,
            memoryLimitMiB: 4096,
            taskImageOptions: {
                containerPort: 3000,
                // image: ContainerImage.fromEcrRepository(repository, IdpConfig.ECR_METABASE_IMAGE_TAG),
                image: ContainerImage.fromRegistry('metabase/metabase:latest'),
                environment: {
                    'MB_DB_TYPE': 'mysql',
                },
            },
            desiredCount: 1,
            circuitBreaker: { rollback: true },
            healthCheckGracePeriod: Duration.minutes(3),
            listenerPort: IdpConfig.ALB_PORT
        });

Expected Behavior

Create ApplicationLoadBalancedFargateService in an exist VPC.

Current Behavior

Can not create ApplicationLoadBalancedFargateService in an exist VPC.

Reproduction Steps

NA

Possible Solution

No response

Additional Information/Context

No response

CDK CLI Version

2.90.0

Framework Version

No response

Node.js Version

v18.12.1

OS

Amazon Linux2

Language

Typescript

Language Version

No response

Other information

No response

[peterwoodworth]

You aren't defining the public subnets in fromVpcAttributes, so it thinks there are no public subnets. Either include them in this import, or use fromLookup() instead to actually fetch the information from your account

[github-actions]

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