CODEWITHSUNDEEP
pythonamazon-ec2aws-cli
user4999547
user4999547

Reputation:

Remove unused Amazon EC2 Snapshots

Since Amazon switched from ec2-ami-tools to awscli (check this) Robert Sindall's solution is no longer acceptable.

So I decided to rewrote his script for new python/json standards.

Feel free to ask any questions or provide your solution.

Upvotes: 0

Views: 784

Answers (1)

user4999547
user4999547

Reputation:

Please, install and configure awscli properly. For MacOS I would recommend brew version.

After installation don't forget to run aws configure

Works flawlessly for me but anyway USE IT AT YOUR OWN RISK.

import json, subprocess

def remove_unused_snaps(region):
    line = 'aws ec2 describe-images --region {} --owners self'.format(region)
    p = subprocess.Popen(line.split(),
                         stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    out, err = p.communicate()
    obj = json.loads(out.decode("utf-8"))

    snaps_used = set(i['BlockDeviceMappings'][0]['Ebs']['SnapshotId'] for i in obj['Images'])

    line = 'aws ec2 describe-snapshots --region {} --owner-ids self'.format(region)
    p = subprocess.Popen(line.split(),
                         stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    out, err = p.communicate()
    obj = json.loads(out.decode("utf-8"))

    snaps_old = set(i['SnapshotId'] for i in obj['Snapshots'])

    line = 'aws ec2 delete-snapshot --region {} --snapshot-id'.format(region)
    for snap in list(snaps_old - snaps_used):
        p = subprocess.Popen(line.split() + [snap],
                             stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        out, err = p.communicate()
        print(snap, out, err)

Then simply run it: remove_unused_snaps('us-west-2')

Upvotes: 1

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