• Before you can interact with an AWS service, you need to set up access
• Permissions correspond to IAM entities
• You can get access in a bunch of ways...
• Environment Variables
• Credentials File (in a well-known location only on your computer)
• Baked into your code (maybe a bad idea)
• ... and a few others
• Note: Some non-AWS-managed setups allow network connections. You're responsible for controlling that

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