IAM Roles Use Cases

Amazon Web Services (AWS) Identity and Access Management (IAM) roles are a powerful feature that can be used for a variety of use cases. Here are some examples of how IAM roles can be used:

  • Providing EC2 instances with access to other AWS services: IAM roles can be assigned to EC2 instances, which allows applications running on the instances to call other AWS services on their behalf. This eliminates the need to store long-term security credentials on the instances.
  • Granting cross-account access: IAM roles can be used to grant access to resources in one AWS account to users or applications in another AWS account. This allows organizations to share resources and to manage access to resources across multiple accounts.
  • Enabling Single Sign-On (SSO): IAM roles can be used to enable SSO with external identity providers (IdPs) such as Microsoft Active Directory or Okta. Users can authenticate to the IdP and then assume an IAM role to gain access to AWS resources.
  • Granting permissions to AWS services: IAM roles can be used to grant permissions to AWS services, such as Lambda, to call other AWS services on their behalf. This allows for the creation of serverless architectures, where different services can invoke each other without the need for long-term credentials.
  • Granting permissions to applications: IAM roles can be used to grant permissions to applications running on EC2 instances, Lambda functions, or other AWS services, without the need to embed long-term access keys in the application.
  • Providing permissions for Data lake and lake house architecture: IAM roles can be used to provide permissions to access and move data between different data lake and lake house services such as S3, Glue, and Redshift, this allows to separate the responsibilities of accessing, storing, and processing data.

It’s important to note that IAM roles can be used in a variety of ways to manage access to AWS resources, and it’s recommended to review the policies that are associated with the role and make sure that they align with the organization’s security and compliance requirements.

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