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A python script to snapshot the volume attached to an instance.
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#! /usr/bin/python | |
from boto import ec2; | |
import boto.utils | |
import argparse | |
def parsed_args(): | |
parser = argparse.ArgumentParser() | |
parser.add_argument("-i", "--instance_id", | |
help="the instance id you want to snapshot. default: current instance id", | |
default=boto.utils.get_instance_metadata()['instance-id']) | |
parser.add_argument('-m', "--mount_point", | |
help="the mount moint you're searching for. default: /dev/sdf", | |
default='/dev/sdf') | |
parser.add_argument('-r', "--region", | |
help="the region you're in. default: us-west-2", | |
default='us-west-2') | |
parser.add_argument('-t', "--tag", | |
help="the tag you'd like to apply to the snapshot. default: codepen-app", | |
default='codepen-app') | |
return parser.parse_args() | |
def main(): | |
args = parsed_args() | |
conn = ec2.connect_to_region(args.region) | |
vols = conn.get_all_volumes(filters={'attachment.instance-id': args.instance_id}) | |
matches = [x for x in vols if x.attach_data.device == args.mount_point] | |
if (len(matches) == 1): | |
code_volume = matches[0] | |
else: | |
raise Exception('No attached volume could be found for %s' % mount_point) | |
print "found. the plan is to snapshot %s with tag %s" % (args.mount_point, args.tag) | |
snap = code_volume.create_snapshot(snapshot_description(code_volume, args.instance_id)) | |
snap.add_tag('Name', args.tag) | |
print "done." | |
def snapshot_description(volume, instance_id): | |
return "deployment snapshot of volume %s on instance %s" % (volume.id, instance_id) | |
if __name__ == '__main__': | |
main() |
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