# FileSystemAttributes

Properties that describe an existing FSx file system.

- Source: [`aws-fsx/lib/file-system.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0/packages/aws-cdk-lib/aws-fsx/lib/file-system.ts#L120)

## Example

```ts
const sg = ec2.SecurityGroup.fromSecurityGroupId(this, 'FsxSecurityGroup', '{SECURITY-GROUP-ID}');
const fs = fsx.LustreFileSystem.fromLustreFileSystemAttributes(this, 'FsxLustreFileSystem', {
  dnsName: '{FILE-SYSTEM-DNS-NAME}',
  fileSystemId: '{FILE-SYSTEM-ID}',
  securityGroup: sg,
});

const vpc = ec2.Vpc.fromVpcAttributes(this, 'Vpc', {
  availabilityZones: ['us-west-2a', 'us-west-2b'],
  publicSubnetIds: ['{US-WEST-2A-SUBNET-ID}', '{US-WEST-2B-SUBNET-ID}'],
  vpcId: '{VPC-ID}',
});

const inst = new ec2.Instance(this, 'inst', {
  instanceType: ec2.InstanceType.of(ec2.InstanceClass.T2, ec2.InstanceSize.LARGE),
  machineImage: new ec2.AmazonLinuxImage({
    generation: ec2.AmazonLinuxGeneration.AMAZON_LINUX_2,
  }),
  vpc,
  vpcSubnets: {
    subnetType: ec2.SubnetType.PUBLIC,
  },
});

fs.connections.allowDefaultPortFrom(inst);
```

## Properties

- `dnsName`: string (required) — The DNS name assigned to this file system.

- `fileSystemId`: string (required) — The ID of the file system, assigned by Amazon FSx.

- `securityGroup`: [ISecurityGroup](/cdk/api/v2/docs/aws-cdk-lib.aws_ec2.ISecurityGroup.html) (required) — The security group of the file system.