How can I make a copy of a dataset from one S3 bucket to another in the same AWS account?

In the context of AWS, here are the steps given:-

Using AWS CLI

You can use the “aws S3 cp” command to copy objects between S3 buckets. Here is an example given:-

#!/bin/bash

# Define source and destination bucket names

Source_bucket=”source-bucket”

Destination_bucket=”destination-bucket”# Function to copy objects from source bucket to destination bucket

Function copy_objects {

    # List objects in source bucket

    Objects=$(aws s3 ls “s3://${source_bucket}/” –recursive | awk ‘{print $4}’)

    If [ -z “$objects” ]; then

        Echo “No objects found in ${source_bucket}”

        Exit 1

    Fi

    # Loop through each object and copy to destination bucket

    For object in $objects; do

        # Replace spaces with   in object names for correct URL encoding

        Encoded_object=$(echo “$object” | sed ‘s/ / /g’)

        # Copy object to destination bucket

        Aws s3 cp “s3://${source_bucket}/${encoded_object}” “s3://${destination_bucket}/${encoded_object}” –quiet

        If [ $? -eq 0 ]; then

            Echo “Copied: ${object}”

        Else

            Echo “Error copying: ${object}”

        Fi

    Done

}

# Call copy_objects function

Copy_objects

This command would copy all the objects from the source bucket to the destination Bucket recursively.

Using AWS SDK 

Here is a Python coding snippet given by using Boto 3 to copy objects between S3 buckets:-

Import boto3

# Initialize S3 client

S3_client = boto3.client(‘s3’)

Def copy_objects(source_bucket, destination_bucket):

    Try:

        Response = s3_client.list_objects_v2(Bucket=source_bucket)

        If ‘Contents’ in response:

            For obj in response[‘Contents’]:

                Source_key = obj[‘Key’]

                Destination_key = source_key  # You can modify the destination key if needed

                Copy_source = {‘Bucket’: source_bucket, ‘Key’: source_key}

                S3_client.copy_object(CopySource=copy_source, Bucket=destination_bucket, Key=destination_key)

                Print(f”Successfully copied {source_key} to {destination_key}”)

        Else:

            Print(f”No objects found in {source_bucket}”)

    Except Exception as e:

        Print(f”Error copying objects: {e}”)

# Example usage

If __name__ == “__main__”:

    Source_bucket = ‘source-bucket’

    Destination_bucket = ‘destination-bucket’

    Copy_objects(source_bucket, destination_bucket)

Here is the example given in HTML of how you can copy an object from one Amazon S3 bucket to another:-

    <meta</span> charset=”UTF-8”>

    <meta</span> name=”viewport” content=”width=device-width, initial-scale=1.0”>

   

    Copy S3 Objects

Here is also the Python script given:-

#!/usr/bin/env python3

Import cgi

Import subprocess

# Get form data

Form = cgi.FieldStorage()

Source_bucket = form.getvalue(‘source_bucket’)

Destination_bucket = form.getvalue(‘destination_bucket’)

# Function to copy S3 objects using AWS CLI

Def copy_s3_objects(source_bucket, destination_bucket):

    Try:

        # Run AWS CLI command to copy objects        Command = f”aws s3 cp s3://{source_bucket}/ s3://{destination_bucket}/ --recursive”

        Process = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)

        Stdout, stderr = process.communicate()

        # Check if the copy was successful

        If process.returncode == 0:

            Return f”Objects copied successfully from {source_bucket} to {destination_bucket}”

        Else:

            Return f”Error copying objects: {stderr.decode(‘utf-8’)}”

    Except Exception as e:

        Return f”Error: {e}”

# Print HTML content

Print(“Content-Type: text/html

”)

Print(“”)

Print(“Copy S3 Objects”)

Print(“”)

Print(“Copy S3 Objects”)

If source_bucket and destination_bucket:

    Result = copy_s3_objects(source_bucket, destination_bucket)

    Print(f”{result}”)

Print(“”)

Print(“”)