title: How to initialize AWS SDK in spring boot application?
body: <p>I am writing a spring boot application which reads messages from SQS. I am able to run the application using environment variables <code>AWS_ACCESS_KEY_ID</code> and <code>AWS_SECRET_ACCESS_KEY</code>. However, I was wondering it would be simpler to pass this configuration via a file similar to <code>application.properties</code>.  How to achieve this? </p>