CODEWITHSUNDEEP
pythonamazon-web-servicesaws-sdkboto3boto
Nikhil Kumar Vanapalli
Nikhil Kumar Vanapalli

Reputation: 33

Boto3 Error in AWS SDK: botocore.exceptions.NoCredentialsError: Unable to locate credentials

When I simply run the following code, I always gets this error.

import boto3 as boto
import sys
import json



role_to_assume_arn="arn:aws:iam::xxxxxxxxxxxx:role/AWSxxxx_xxxxxxAdminaccess_xxxxx24fexxx"
role_session_name='AssumeRoleSession1'

sts_client=boto.client('sts')


assumed_role_object=sts_client.assume_role(
    RoleArn="arn:aws:iam::xxxxxxxxxxxx:role/AWSxxxx_xxxxxxAdminaccess_xxxxx24fexxx",
    RoleSessionName="Sess1",
)

creds=assumed_role_object['Credentials']

sts_assumed_role = boto3.client('sts',
    aws_access_key_id=creds['AccessKeyId'],
    aws_secret_access_key=creds['SecretAccessKey'],
    aws_session_token=creds['SessionToken'],
)

rds_client = boto.client('rds',
                         aws_access_key_id=creds['AccessKeyId'],
                         aws_secret_access_key=creds['SecretAccessKey'],
                         aws_session_token=creds['SessionToken']
                         )

I don't want to set and change the temporary session keys frequently, instead I want them to be set directly through a code like I've just written.

Am I wrong? Is there a way to set the credentials like this directly in the program or not?

Or is it mandatory to give the credentials in the "~/.aws/credentials"

Upvotes: 2

Views: 10443

Answers (1)

sakthi srinivas
sakthi srinivas

Reputation: 192

I assume you are running this code in your local machine.

The STS client you created is expecting access key and secret access key.

You have to either configure it using credentials file or you can directly hardcode your access key and secret access key like below(Not recommended).

client = boto3.client('sts', aws_access_key_id=key, aws_secret_access_key=sec_key, region_name=region_name)

https://docs.aws.amazon.com/sdk-for-php/v3/developer-guide/guide_credentials_profiles.html

If you are running this code in EC2 instance, install boto3 and do AWS Configure. Follow the below link.

https://docs.aws.amazon.com/cli/latest/userguide/cli-chap-configure.html

Upvotes: 5

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