Use Amazon EFS with Amazon EC2 Linux instances

Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/.

Choose Launch instance.

(Optional) Under Name and tags, for Name, enter a name to identify your instance.

Under Application and OS Images (Amazon Machine Image), choose a Linux operating system, and then for Amazon Machine Image (AMI), select a Linux AMI.

Under Instance type, for Instance type, select an instance type or keep the default.

Under Key pair (login), for Key pair name, choose an existing key pair or create a new one.

Under Network settings, choose Edit (at right), and then for Subnet, select a subnet.

Under Configure storage, choose Edit (at bottom right), and then do the following:

1. For File systems, ensure that EFS is selected, and then choose Create new shared file system.

2. For File system name enter a name for the Amazon EFS file system, and then choose Create file system.

3. For Mount point, specify a custom mount point or keep the default.

4. To enable access to the file system, select Automatically create and attach security groups. By selecting this checkbox, the following security groups will be automatically created and attached to the instance and the mount targets of the file system:

   • Instance security group – Includes an outbound rule that allows traffic over the NFS 2049port, but includes no inbound rules.

   • File system mount targets security group – Includes an inbound rule that allows traffic over the NFS 2049 port from the instance security group (described above), and an outbound rule that allows traffic over the NFS 2049 port.

   Note

   Alternatively, you can manually create and attach the security groups. If you want to manually create and attach the security groups, clear Automatically create and attach the required security groups.

5. To automatically mount the shared file system when the instance launches, select Automatically mount shared file system by attaching required user data script. To view the user data that is automatically generated, expand Advanced details, and scroll down to User data.

   Note

   If you added user data before selecting this checkbox, the original user data is overwritten by the automatically generated user data.

Configure any other instance configuration settings as needed.

In the Summary panel, review your instance configuration, and then choose Launch instance. For more information, see Launch an EC2 instance using the launch instance wizard in the console.

Connect to your instance. For more information, see Connect to your Linux instance using SSH.

From the terminal window for the instance, run the df -T command to verify that the EFS file system is mounted.

$ df -T
Filesystem     Type              1K-blocks    Used          Available Use% Mounted on
/dev/xvda1     ext4                8123812 1949800            6073764  25% /
devtmpfs       devtmpfs            4078468      56            4078412   1% /dev
tmpfs          tmpfs               4089312       0            4089312   0% /dev/shm
efs-dns        nfs4       9007199254740992       0   9007199254740992   0% /mnt/efs

Note that the name of the file system, shown in the example output as efs-dns, has the following form.

file-system-id.efs.aws-region.amazonaws.com:/

(Optional) Create a file in the file system from the instance, and then verify that you can view the file from another instance.

1. From the instance, run the following command to create the file.

   $ sudo touch /mnt/efs/test-file.txt

2. From the other instance, run the following command to view the file.

   $ ls /mnt/efs
   test-file.txt

Open the Amazon Elastic File System console at https://console.aws.amazon.com/efs/.

Select the file system to delete.

Choose Actions, Delete file system.

When prompted for confirmation, enter the file system ID and choose Delete file system.