Backup EFS file-system to S3 with lambda function

LambdaEfsBackup.py

import boto3
import time
region = 'eu-west-1'
user_data_script  = """#!/bin/bash 
instanceid=$(curl http://169.254.169.254/latest/meta-data/instance-id) 
cd /
mkdir moodledata
mount -t nfs4 -o nfsvers=4.1,rsize=1048576,wsize=1048576,hard,timeo=600,retrans=2 fs-xxxxxxxxxxc.efs.eu-west-1.amazonaws.com:/ moodledata
tar czf mooodledata-backup-$(date +%d-%m-%Y_%H-%M).tar.gz /moodledata
aws s3 mv mooodledata-backup-*.tar.gz s3://xxxxxxxxx/
aws ec2 terminate-instances --instance-ids $instanceid --region eu-west-1 """

# Amazon Linux (ami-ebd02392)
def lambda_handler(event, context):
    ec2 = boto3.client('ec2', region_name=region)
    new_instance = ec2.run_instances(
                        ImageId='ami-ebd02392',
                        MinCount=1,
                        MaxCount=1,
                        KeyName='xxxxx-key',
                        InstanceType='t2.micro',
                        SecurityGroups=['default'],
                        IamInstanceProfile={'Name':'EFSBackupRole'},
                        UserData=user_data_script)

In case you want to run this in reverse (S3 to EFS), here's the code. Simply trigger on any object put in the S3 bucket.

import boto3
import time
region = 'us-east-1'
user_data_script1  = """#!/bin/bash 
instanceid=$(curl http://169.254.169.254/latest/meta-data/instance-id) 
cd /
mkdir mountDir
mount -t nfs4 -o nfsvers=4.1,rsize=1048576,wsize=1048576,hard,timeo=600,retrans=2 fs-xxxxxxxx.efs.us-east-1.amazonaws.com:/ mountDir
aws s3 cp s3://someBucket-us-east-1/@ mountDir/@
aws ec2 terminate-instances --instance-ids $instanceid --region """ + region

# Amazon Linux (ami-062f7200baf2fa504)
def lambda_handler(event, context):
    for record in event['Records']:
        user_data_script2 = user_data_script1.replace('@', record['s3']['object']['key'])
    print(user_data_script2)
    
    ec2 = boto3.client('ec2', region_name=region)
    new_instance = ec2.run_instances(
                        ImageId='ami-062f7200baf2fa504',
                        MinCount=1,
                        MaxCount=1,
                        InstanceType='t2.micro',
                        SecurityGroups=['default'],
                        IamInstanceProfile={'Name':'EFS-client-FULL'},
                        UserData=user_data_script2)

Great!