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pythonamazon-web-servicesaws-lambdaboto3snapshot

wait until the snapshot is completed with boto3 and lambda


i wrote python code in lambda to create snapshot and wait until it completed to execute the rest of the code but i have error the error

"errorMessage": "Parameter validation failed:\nUnknown parameter in input: \"SnapshotsId\", must be one of: Filters, MaxResults, NextToken, OwnerIds, RestorableByUserIds, SnapshotIds, DryRun",
  "errorType": "ParamValidationError",

the code

from __future__ import print_function
import botocore
import boto3
import urllib.request

def lambda_handler(event, context):
        ec2_client = boto3.client('ec2', region_name='eu-west-1')
        snapshot1 = ec2_client.create_snapshot(VolumeId='vol-054c95927bb8ed4a9', Description='Created by Lambda backup function ebs-snapshots')

       try:
            snapshot_id = snapshot1['SnapshotId']
            snapshot_complete_waiter = ec2_client.get_waiter('snapshot_completed')
            snapshot_complete_waiter.wait(SnapshotsId=['snapshot_id'])

        except botocore.exceptions.WaiterError as e:
            if "max attempts exceeded" in e.message:
                print("snapshot not completed")
            else:
                print(e.message)

Solution

  • You must use SnapshotIds instead of SnapshotsId:

    from __future__ import print_function
    import botocore
    import boto3
    import urllib.request
    
    def lambda_handler(event, context):
            ec2_client = boto3.client('ec2', region_name='eu-west-1')
            snapshot1 = ec2_client.create_snapshot(VolumeId='vol-054c95927bb8ed4a9', Description='Created by Lambda backup function ebs-snapshots')
    
           try:
                snapshot_id = snapshot1['SnapshotId']
                snapshot_complete_waiter = ec2_client.get_waiter('snapshot_completed')
                snapshot_complete_waiter.wait(SnapshotIds=[snapshot_id])
    
            except botocore.exceptions.WaiterError as e:
                    print(e)