Use boto run user-data in AWS instance

I am using boto to launch the instance run the user-code in the background, but find that it’s not so convenient to debug and get the error information. Here’s finally what I did. Use the traceback to get the error, use smtp to send back the error information to my email. There must be some other cleverer ways to do so, ha ~

import boto
from boto.ec2.connection import EC2Connection
import time

ami_id = '----'                                                  # ami-ubuntu-64 (settedup) use t1.micro as instance type
key_pair_name = '----'
AWS_ACCESS_KEY_ID = '----'
AWS_SECRET_ACCESS_KEY = '----'

ec2conn = EC2Connection(AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY)

test_script_00 = """#!/bin/bash
sudo apt-get update
sudo apt-get install imagemagick
"""

test_script_01 = """#!/usr/bin/env python
 import boto
 from boto.s3.key import Key

AWS_ACCESS_KEY_ID = '-------'
AWS_SECRET_ACCESS_KEY = '----'

bucket_name = 'demo-test'
conn_s3 = boto.connect_s3(AWS_ACCESS_KEY_ID,AWS_SECRET_ACCESS_KEY)
bucket = conn_s3.get_bucket(bucket_name)

k=Key(bucket)
k.key='images/rose111105.jpg'
k.copy('demo-test', 'images/rose111105copy6.jpg')
"""

test_script ="""#!/usr/bin/env python
import smtplib
import boto
from boto.s3.key import Key
import numpy as np
import sys

AWS_ACCESS_KEY_ID = '-----' # Your AWS_KEY
AWS_SECRET_ACCESS_KEY = '---------' # Your Secret KEY

def send_notice(msg='testing'):
    fromaddr = '******@gmail.com'
    toaddrs = '******@gmail.com'
    username = '******'
    password = '******'
    
    server = smtplib.SMTP('smtp.gmail.com:587')
    server.starttls()
    server.login(username,password)
    server.sendmail(fromaddr, toaddrs, msg)
    server.quit()

send_notice("start processing")
#DO YOUR PROCESS
send_notice("Finishing...")
"""

my_reservation = ec2conn.run_instances(ami_id,
                                       instance_type=instance_type,
                                       key_name=key_pair_name,
                                       user_data=test_script)

instance = my_reservation.instances[0]
while not instance.update() == 'running':
    time.sleep(5)
instance.stop()