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Introduction

Updated on 2024-02-21 GMT+08:00

This section describes fine-grained permissions management for LakeFormation. If your account does not need individual IAM users, then you may skip this section.

New IAM users do not have any permissions assigned by default. You need to first add them to one or more groups and attach policies or roles to these groups. Users inherit permissions from their groups and can perform operations on cloud services as allowed by the permissions.

You can grant permissions by using roles and policies. Roles are provided by IAM to define service-based permissions that match users' job responsibilities. Policies are more fine-grained, API-based permissions required to perform operations on specific cloud resources under certain conditions, meeting requirements for secure access control.

NOTE:

Policy-based authorization is useful if you want to allow or deny the access to an API.

Each account has all the permissions required to call all APIs, but IAM users must be assigned the required permissions. The required permissions are determined by the actions supported by the API. Only users with the policies allowing for those actions can call the API. For example, if an IAM user wants to query ECSs using an API, the user must have been granted permissions that allow the ecs:servers:list action.

Actions

LakeFormation provides system-defined policies that can be directly used in IAM. You can also create custom policies to supplement system-defined policies for more refined access control. The following are related concepts:

  • Permissions: statements in a policy that allow or deny certain operations.
  • APIs: REST APIs that can be called by a user who has been granted specific permissions.
  • Actions: specific operations that are allowed or denied in a custom policy.
  • Dependencies: actions on which a specific action depends. When allowing an action for a user, you also need to allow any existing action dependencies for that user.
  • IAM or enterprise projects: Type of projects for which an action will take effect. Policies that contain actions supporting both IAM and enterprise projects can be assigned to user groups and take effect in both IAM and Enterprise Management. Policies that contain actions only for IAM projects can be used and applied to IAM only.

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