1. Environment variables such as AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY
2. Application code properties (like boto3.session(region_name='us-west-2', profile_name='account01'))
   • profile_name='' and --profile are used for assuming other roles if you are using API key-based authentication.
3. Local credentials profile file (~/.aws/credentials)
   • You can set credential profiles within ~/.aws/credentials by using [default …

Started reading through some of my old posts and noticed how many times I've eaten a letter or something didn't sound grammatically correct. Fixing all mistakes ASAP.

EDIT: I even managed to make a mistake in this post. I've spent too much time on the Internet today.