Using Ionos Cloud S3 with Boto3 and AWS CLI

list_objects.py

import boto3

endpoint="https://S3-eu-central-1.ionoscloud.com"
bucket_name="my_bucket" # add your bucket here

client = boto3.client('s3', 
    endpoint_url=endpoint, 
    config=boto3.session.Config(signature_version='s3v4'),
    aws_access_key_id = "4ab...76", # add your access key 
    aws_secret_access_key = "nDkdd...Trdd" # add your secret key
)

paginator = client.get_paginator('list_objects')
page_iterator = paginator.paginate(Bucket=bucket_name)

for page in page_iterator:
    print(page['Contents'])

list_objects.sh

#!/bin/bash
# you need to have your Ionos access keys and secret configured in ~/.aws/credentials
#
# [default]
# aws_access_key_id = 4ab...76
# aws_secret_access_key = nDkdd...Trdd 
#

BUCKET=$1
aws s3 ls --endpoint-url https://S3-eu-central-1.ionoscloud.com $BUCKET