DynamoDB Backup and Migration

dynamodb_backup.py

import time
import boto3

dynamodb = boto3.client('dynamodb')

source_table_name = "customerTable"  # Or whatever your source table name is
dest_table_name = "customerTable-dev"  # This should be an empty table - the script will delete it first
backup_name = source_table_name + "backupMigration"  # Or any other backup name

# Create the backup
response = dynamodb.create_backup(
    TableName=source_table_name,
    BackupName=backup_name
)

# Get the backup ARN From the response
backup_arn = response["BackupDetails"]["BackupArn"]

dynamodb.delete_table(
  TableName=dest_table_name
)

while True:
    try:
        dynamodb.describe_table(
            TableName=dest_table_name,
        )
        time.sleep(5)
    except dynamodb.exceptions.ResourceNotFoundException: 
        dynamodb.restore_table_from_backup(
            TargetTableName=dest_table_name,
            BackupArn=backup_arn
        )
        break
    except dynamodb.exceptions.ResourceInUseException:
        break