Get the total amount of snapshots in GiB

aws-snapshots-size.py

#!/usr/bin/python3

"""
Get the total amount of GiB snapshots use and calculate the average snapshot size
Use eg. with:

AWS_DEFAULT_REGION=sa-east-1 AWS_PROFILE=my-profile ./aws-snapshots-size.py
"""

import boto3

ec2res = boto3.resource('ec2')
ec2client = boto3.client('ec2')

region_name = ec2client.meta.region_name

snapshots = ec2res.snapshots.filter(OwnerIds=['self'])

snapshots_size_total = 0
snapshots_count_total = 0
for s in snapshots:
    snapshots_size_total += s.volume_size
    snapshots_count_total += 1

snapshot_size_avg = snapshots_size_total / snapshots_count_total
print(f'{region_name}: Found {snapshots_count_total} total snapshots ({snapshots_size_total} GiB). Avg size: {snapshot_size_avg} GiB')