lambda를 이용하여 모든 EC2를 AMI Backup 하기

EC2의 AMI를 Lambda를 이용하여 Backup 하는 소스임.



import boto3
import datetime
import time
import os

ec2 = boto3.resource('ec2', region_name='ap-northeast-2')
ec = boto3.client('ec2')

def create_backup_snapshot():
    print("\n\nAWS snapshot backups starting at %s" % datetime.datetime.now())
    instances = ec2.instances.filter(
        Filters=[{'Name': 'instance-state-name', 'Values': ['running']},{'Name': 'tag:Name', 'Values': ['*DSTG*']},{'Name': 'tag:BackupYN', 'Values': ['Y']}])
     
    for instance in instances:
        instance_name = filter(lambda tag: tag['Key'] == 'Name', instance.tags)[0]['Value']
        print("instance_name [%s]" % instance_name)
     
        for volume in ec2.volumes.filter(Filters=[{'Name': 'attachment.instance-id', 'Values': [instance.id]}]):
            description = 'scheduled-%s.%s-%s' % (instance_name, volume.volume_id,
                datetime.datetime.now().strftime("%Y%m%d-%H%M%S"))
         
            response = volume.create_snapshot(Description=description, VolumeId=volume.volume_id) 
         
            if response:
                print("Snapshot created with description [%s]" % description)
                ec2.create_tags( Resources=[response.snapshot_id],
                Tags=[
                    {'Key': 'Name', 'Value': description}
                ])
                #snapshot = ec2.Snapshot(response.snapshot_id)
                #snapshot.create_tags(Tags=[{'Key': 'Name','Value': description}])

def backup_snapshot():
    print("\n\nAWS snapshot backups starting at %s" % datetime.datetime.now())
    instances = ec2.instances.filter(
        Filters=[{'Name': 'instance-state-name', 'Values': ['stopped']},{'Name': 'tag:Name', 'Values': ['*DSTG*']}])

    for instance in instances:
        instance_name = filter(lambda tag: tag['Key'] == 'Name', instance.tags)[0]['Value']
        print("instance_name [%s]" % instance_name)
        create_time = datetime.datetime.now()
        create_fmt = create_time.strftime('%Y-%m-%d')
        AMIid = ec.create_image(InstanceId=instance.id, Name="Lambda-" + instance_name +"-"+instance.id + " from " + create_fmt, Description="Lambda created AMI of instance " + instance.id + " from " + create_fmt, NoReboot=True, DryRun=False)

     

    print("\n\nAWS snapshot backups completed at %s" % datetime.datetime.now())


def lambda_handler(event, context):
    backup_snapshot()
    #create_backup_snapshot()
    return 'successful'