image_tagging.py

import boto.ec2
regions = {
    'dev': ['us-east-1', 'us-west-2'],
    'corp': ['us-east-1', 'us-west-2'],
    'outside': ['us-west-1'],
    'stage': ['us-east-1', 'us-west-2', 'ap-southeast-2'],
    'prod': ['us-east-1', 'us-west-2', 'ap-southeast-2', 'sa-east-1', 'eu-west-1', 'ap-northeast-1', 'ap-southeast-1'],
}
region = 'dev'
for reg in regions[region]:
    print('Fetching images in ' + reg)
    con = boto.ec2.connect_to_region(reg)
    images = con.get_all_images()
    print('Found ' + str(len(images)) + ' images in ' + reg)
    for image in images:
        if 'version' in image.tags and not 'image_version' in image.tags:
            print('Adding image_version: ' + image.tags['version'] + ' to ' + image.id)
            con.create_tags([image.id], {'image_version': image.tags['version']})