Package software.amazon.awscdk.services.lambda

Class FileSystem

java.lang.Object

software.amazon.jsii.JsiiObject

software.amazon.awscdk.services.lambda.FileSystem

All Implemented Interfaces:

software.amazon.jsii.JsiiSerializable

@Generated(value="jsii-pacmak/1.116.0 (build 0eddcff)",
           date="2025-10-24T13:34:41.232Z")
@Stability(Stable)
public class FileSystem
extends software.amazon.jsii.JsiiObject

Represents the filesystem for the Lambda function.

Example:

 import software.amazon.awscdk.services.ec2.*;
 import software.amazon.awscdk.services.efs.*;
 // create a new VPC
 Vpc vpc = new Vpc(this, "VPC");
 // create a new Amazon EFS filesystem
 FileSystem fileSystem = FileSystem.Builder.create(this, "Efs").vpc(vpc).build();
 // create a new access point from the filesystem
 AccessPoint accessPoint = fileSystem.addAccessPoint("AccessPoint", AccessPointOptions.builder()
         // set /export/lambda as the root of the access point
         .path("/export/lambda")
         // as /export/lambda does not exist in a new efs filesystem, the efs will create the directory with the following createAcl
         .createAcl(Acl.builder()
                 .ownerUid("1001")
                 .ownerGid("1001")
                 .permissions("750")
                 .build())
         // enforce the POSIX identity so lambda function will access with this identity
         .posixUser(PosixUser.builder()
                 .uid("1001")
                 .gid("1001")
                 .build())
         .build());
 Function fn = Function.Builder.create(this, "MyLambda")
         // mount the access point to /mnt/msg in the lambda runtime environment
         .filesystem(FileSystem.fromEfsAccessPoint(accessPoint, "/mnt/msg"))
         .runtime(Runtime.NODEJS_18_X)
         .handler("index.handler")
         .code(Code.fromAsset(join(__dirname, "lambda-handler")))
         .vpc(vpc)
         .build();
 

Nested Class Summary

Nested classes/interfaces inherited from class software.amazon.jsii.JsiiObject

software.amazon.jsii.JsiiObject.InitializationMode

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	FileSystem(FileSystemConfig config)
protected	FileSystem(software.amazon.jsii.JsiiObject.InitializationMode initializationMode)
protected	FileSystem(software.amazon.jsii.JsiiObjectRef objRef)

Method Summary

Modifier and Type	Method	Description
static FileSystem	fromEfsAccessPoint(IAccessPoint ap, String mountPath)	mount the filesystem from Amazon EFS.
FileSystemConfig	getConfig()	the FileSystem configurations for the Lambda function.

Methods inherited from class software.amazon.jsii.JsiiObject

jsiiAsyncCall, jsiiAsyncCall, jsiiCall, jsiiCall, jsiiGet, jsiiGet, jsiiSet, jsiiStaticCall, jsiiStaticCall, jsiiStaticGet, jsiiStaticGet, jsiiStaticSet, jsiiStaticSet

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface software.amazon.jsii.JsiiSerializable

$jsii$toJson

Constructor Details

FileSystem

protected FileSystem(software.amazon.jsii.JsiiObjectRef objRef)

FileSystem

protected FileSystem(software.amazon.jsii.JsiiObject.InitializationMode initializationMode)

FileSystem

@Stability(Stable)
protected FileSystem(@NotNull
 FileSystemConfig config)

Parameters:

config - the FileSystem configurations for the Lambda function. This parameter is required.

Method Details

fromEfsAccessPoint

@Stability(Stable)
@NotNull
public static FileSystem fromEfsAccessPoint(@NotNull
 IAccessPoint ap,
 @NotNull
 String mountPath)

mount the filesystem from Amazon EFS.

Parameters:

ap - the Amazon EFS access point. This parameter is required.

mountPath - the target path in the lambda runtime environment. This parameter is required.

getConfig

@Stability(Stable)
@NotNull
public FileSystemConfig getConfig()

the FileSystem configurations for the Lambda function.