IAM Policies
IAM policies are JSON documents that define permissions. A policy can allow or deny actions on specific resources under specified conditions.
Why it matters
Policies are the detailed rules that turn an identity into an authorized identity.
How it works
Principal receives policy → AWS evaluates action/resource/conditions → explicit deny wins over allow → action is permitted or rejected.
Core Concept
Policies are JSON documents that define what is allowed or denied.
Example: allow read access to objects in a specific S3 bucket rather than every bucket.
What you should remember
Key idea
Policies are JSON documents that define what is allowed or denied.
Key idea
Example: allow read access to objects in a specific S3 bucket rather than every bucket.
Real-world example
Use a realistic cloud workload and focus on the responsibility of this AWS service.
Choose the service that matches the responsibility instead of forcing every workload into one resource.
Quick Test
1 QuestionWhat is the main idea of this AWS lesson?