There is a very good question on [How to] SSH to Elastic [an] Beanstalk instance, but one thing I noticed is that, through this method, it is only possible to add one SSH key.
How can I add multiple SSH keys to an instance? Is there a way to automatically add multiple keys to new instances?
No, Elastic Beanstalk only supports a single key pair. You can manually add SSH keys to the
authorized_keysfile, but these will not be known to the Elastic Beanstalk tools.