When you embed an inline policy in a role, the inline policy is used as
part of the role's access (permissions) policy. The role's trust
policy is created at the same time as the role, using CreateRole. You
can update a role's trust policy using UpdateAssumeRolePolicy. For more
information about IAM roles, go to Using Roles to Delegate Permissions and Federate Identities.
A role can also have a managed policy attached to it. To attach a
managed policy to a role, use AttachRolePolicy. To create a new managed
policy, use CreatePolicy. For information about policies, see Managed Policies and Inline Policies
in the IAM User Guide.
For information about limits on the number of inline policies that you
can embed with a role, see Limitations on IAM Entities
in the IAM User Guide.
Because policy documents can be large, you should use POST rather than
GET when calling PutRolePolicy
. For general information about using
the Query API with IAM, go to Making Query Requests
in the IAM User Guide.