Listing 2. Using boto

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import time
from boto import connect_ec2, connect_sns

# Create private image
con = connect_ec2()
con.create_image("i-c1315eaf", "lj_test")

# Launch/run instance(s)
reserv = con.run_instances("ami-7eb54d17",
    min_count=2, max_count=5, key_name='laptop',
    instance_type="t1.micro",
    placement="us-east-1d",
    disable_api_termination=True)

# Disable termination protection
con.modify_instance_attribute("i-132e457d",
    "disableApiTermination", False)

# Find running instances
res_list = con.get_all_instances(
    filters={"image-id": "ami-7eb54d17",
        "instance-state-name": "running"})

# Find instance information
for reservation in res_list:
    inst_list = reservation.instances
    for instance in inst_list:
        instance.id, instance.state
# See Figure 1 for output.


# Create a tag
con.create_tags(["i-391c2657"],
    {"Name": "lj_instance"})
con.create_tags(["vol-a9590ac2"],
    {"Name": "lj_volume"})


# Get volume
vol = con.get_all_volumes(
    filters={"tag:Name": "lj_volume"})[0]

# Create snapshot
snap = vol.create_snapshot(vol.tags["Name"]\
    + "Snap")

# Monitor snapshot creation and notify on completion
def check_snapshot(snap):
    while snap.status != "completed":
        print "Sleeping"
        time.sleep(30)
        snap.update()
    g_time = time.gmtime()
    msg_str = "Snapshot " + snap.id + "\n"
    msg_str += "of volume " + snap.volume_id + "\n"
    msg_str += "started at time "
    msg_str += snap.start_time + "\n"
    msg_str += "completed at "
    msg_str += time.asctime(g_time)
    ARN = "arn:aws:sns:us-east-1:213825411462:Lj"
    sns_con = connect_sns()
    sns_con.publish(ARN, msg_str, "Snapshot done")
    print msg_str