import boto3

from botocore.exceptions import ClientError

import sys

session = boto3.session.Session()

# configuration for this connection

# in a "real" script, these values would probably not be hard-coded

configuration = {

"endpoint_url": "[endpoint_url_here]",

"access_key": "[access_key_here]",

"secret_key": "[secret_key_here]",

"bucket": "ntnxdev-uploads",

"filename": "/tmp/hello_world.txt",

"key": "hello_world.txt"

}

# create our s3c session using the variables above

# note "use_ssl=False", as outlined in the accompanying article

s3c = session.client(

aws_access_key_id=configuration["access_key"],

aws_secret_access_key=configuration["secret_key"],

endpoint_url=configuration["endpoint_url"],

service_name="s3",

use_ssl=False,

)

# check if bucket exists

try:

s3c.head_bucket(Bucket=configuration["bucket"])

print(f"Bucket exists : {configuration['bucket']}")

except ClientError:

print(f"Bucket {configuration['bucket']} does not exist. "

+ "Attempting to create bucket ...")

try:

s3c.create_bucket(Bucket=configuration['bucket'])

except Exception as err:

print("An exception occurred while creating the "

+ f"{configuration['bucket']} bucket. "

+ f"Details: {err}")

sys.exit()

try:

# create file handle and upload the file to Objects endpoint.

print(f"Uploading file {configuration['filename']}, as object "

+ "{configuration['key']} in bucket {configuration['bucket']} ...")

s3c.put_object(Bucket=configuration["bucket"],

Key=configuration["key"],

Body=configuration["filename"])

# verify if file is uploaded

print(f"Checking if {configuration['key']} exists ...")

response = s3c.head_object(Bucket=configuration["bucket"],

Key=configuration["key"])

print(f"Head Object Response : {response}")

except s3c.exceptions.NoSuchBucket:

print(f"The {configuration['bucket']} bucket does not exist. "

+ "Aborting ...")

except Exception as err:

print("An unexpected exception occurred while attempting "

+ "file upload. Details:")

print(f"{err}")