What is IAM Roles and Policies?

IAM Roles and Policies are a core component of AWS Identity and Access Management (IAM). IAM Roles define a set of permissions that grant access to AWS resources. They are typically assumed by users, applications, or services to perform actions. IAM Policies are JSON documents that define these permissions, specifying what actions are allowed or denied on which resources. Together, Roles and Policies enable fine-grained control over access to AWS resources, promoting security and least privilege access.