CODEWITHSUNDEEP
python-2.7amazon-web-servicesboto
anoop-khandelwal
anoop-khandelwal

Reputation: 3860

How to check whether a snapshot with ID is in use of AWS AMI's in Boto?

I am getting the following Error while deleting snapshots. I wanted to delete Snapshot which are currently not in use by My AWS AMI's and Other Instances.. as well .I tried but got this error..

Traceback (most recent call last):
<path to error file>
EC2ResponseError: EC2ResponseError: 400 Bad Request
<?xml version="1.0" encoding="UTF-8"?><Response><Errors><Error><Code>InvalidSnapshot.InUse</Code><Message>The snapshot snap-xxxxxxxx is currently in use by ami-xxxxxxxx</Message></Error></Errors><RequestID>bbe55333-4acf-4ca7-9aa3-49307b189ca3</RequestID></Response>

Upvotes: 2

Views: 3858

Answers (4)

Qba Kon
Qba Kon

Reputation: 11

Just in case anyone still wondering how to do it:

def if_associated_to_ami(client, snapshot_id):
  img = client.describe_images(
      Filters=[
          {'Name': 'block-device-mapping.snapshot-id', 'Values': [snapshot_id]}
      ]
  )
  try:
      ami_id = img['Images'][0]['ImageId']
      print("Snapshot(" + snapshot_id + ") is associated to image(" + ami_id + "). Return True")
      return True
  except IndexError:
      print("Snapshot(" + snapshot_id + ") is not associated to any image. Return False")
      return False

Upvotes: 0

Roshan
Roshan

Reputation: 1390

1) Retrieve all the Snapshots, Use regular expression to search for AMI-ID inside snapshot description.

    reAmi = re.compile('ami-[^ ]+')
    snapshotImageId = reAmi.findall(snapshot.description)

2) Retrieve all the AMI's. Check whether the AMI-ID retrieved in first step still exist, if not then snapshot associated with that particular AMI is no longer required.

complete code is posted here

Hope it helps !!

Upvotes: 0

Ashish Karpe
Ashish Karpe

Reputation: 5794

Delete all Snapshots which are not in use :

for s in $(comm -23 <(echo $(ec2-describe-snapshots --region ap-southeast-1 | grep SNAPSHOT | awk '{print $2}' | sort | uniq) | tr ' ' '\n') <(echo $(ec2-describe-images --region ap-southeast-1 | grep BLOCKDEVICEMAPPING | awk '{print $3}' | sort | uniq) | tr ' ' '\n') | tr '\n' ' ')
do
    echo Deleting snapshot $s
    ec2-delete-snapshot --region ap-southeast-1 $s  
done

Upvotes: 2

Matt Houser
Matt Houser

Reputation: 36063

Unfortunately, there is not an API to get AMI ID directly from an EBS snapshot.

Instead, you can go the other way.

  1. Use ec2:DescribeImages to get a list of AMI images.
  2. For each AMI image returned, examine the list of EBS snapshots associated with the AMI image.
  3. See if the EBS snapshot in question is included.

Edit: Another possibility:

You may be able to use ec2:DescribeImages with a filter on the EBS snapshot ID.

https://ec2.amazonaws.com/?Action=DescribeImages
 &Filter.1.Name=block-device-mapping.snapshot-id
 &Filter.1.Value=snap-xxxx

Reference: http://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_DescribeImages.html

Upvotes: 2

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