aws-cdk.aws-efs 1.30.0

The CDK Construct Library for AWS::EFS

Amazon Elastic File System Construct Library

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This is a developer preview (public beta) module.

All classes with the Cfn prefix in this module (CFN Resources) are auto-generated from CloudFormation. They are stable and safe to use.

However, all other classes, i.e., higher level constructs, are under active development and subject to non-backward compatible changes or removal in any future version. These are not subject to the Semantic Versioning model. This means that while you may use them, you may need to update your source code when upgrading to a newer version of this package.

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This construct library allows you to set up AWS Elastic File System (EFS).

# Example automatically generated without compilation. See https://github.com/aws/jsii/issues/826
import aws_cdk.aws_efs as efs

my_vpc = ec2.Vpc(self, "VPC")
file_system = efs.EfsFileSystem(self, "MyEfsFileSystem",
    vpc=my_vpc,
    encrypted=True,
    lifecycle_policy=EfsLifecyclePolicyProperty.AFTER_14_DAYS,
    performance_mode=EfsPerformanceMode.GENERAL_PURPOSE,
    throughput_mode=EfsThroughputMode.BURSTING
)

Connecting

To control who can access the EFS, use the .connections attribute. EFS has a fixed default port, so you don't need to specify the port:

# Example automatically generated without compilation. See https://github.com/aws/jsii/issues/826
file_system.connections.allow_default_port_from(instance)

Mounting the file system using User Data

In order to automatically mount this file system during instance launch, following code can be used as reference:

const vpc = new ec2.Vpc(this, 'VPC');

const fileSystem = new efs.EfsFileSystem(this, 'EfsFileSystem', {
  vpc,
  encrypted: true,
  lifecyclePolicy: efs.EfsLifecyclePolicyProperty.AFTER_14_DAYS,
  performanceMode: efs.EfsPerformanceMode.GENERAL_PURPOSE,
  throughputMode: efs.EfsThroughputMode.BURSTING
});

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

fileSystem.connections.allowDefaultPortFrom(inst);

inst.userData.addCommands("yum check-update -y",    // Ubuntu: apt-get -y update
  "yum upgrade -y",                                 // Ubuntu: apt-get -y upgrade
  "yum install -y amazon-efs-utils",                // Ubuntu: apt-get -y install amazon-efs-utils
  "yum install -y nfs-utils",                       // Ubuntu: apt-get -y install nfs-common
  "file_system_id_1=" + fileSystem.fileSystemId,
  "efs_mount_point_1=/mnt/efs/fs1",
  "mkdir -p \"${efs_mount_point_1}\"",
  "test -f \"/sbin/mount.efs\" && echo \"${file_system_id_1}:/ ${efs_mount_point_1} efs defaults,_netdev\" >> /etc/fstab || " +
  "echo \"${file_system_id_1}.efs." + cdk.Stack.of(this).region + ".amazonaws.com:/ ${efs_mount_point_1} nfs4 nfsvers=4.1,rsize=1048576,wsize=1048576,hard,timeo=600,retrans=2,noresvport,_netdev 0 0\" >> /etc/fstab",
  "mount -a -t efs,nfs4 defaults");

This module is part of the AWS Cloud Development Kit project.