How to use IAM role with AWS Java SDK

Question

My use case is as follows:

I need to push some data into AWS SQS queue using JAVA SDK and by help of IAM role (not using credential provider implementation).

Is there any way to do that?

Thanks for help in advance.

Answer 1

You can use role based authentication only on EC2 Instances, ECS Containers and Lambda functions. It is not possible to use them locally or on on premise servers.

DefaultAWSCredentialsProviderChain will automatically pick the EC2 Instance Role if it can't find the credentials via any of other methods. You can also create a custom AWSCredentialsProviderChain object with only injecting a instance of InstanceProfileCredentialsProvider to it like here

AWSCredentialsProviderChain myCustomChain = new AWSCredentialsProviderChain(new InstanceProfileCredentialsProvider());

For more info: https://docs.aws.amazon.com/java-sdk/latest/developer-guide/java-dg-roles.html