1. A method comprising: maintaining a data store to store a plurality of reusable role definitions for assigning roles to users with respect to resources in a system of a plurality of systems, the plurality of systems comprising a cloud provider system and a content management system; creating, by a processing device, the plurality of reusable role definitions for the cloud provider system, wherein each of the plurality of reusable role definitions comprises a resource type and an action set permitted to be performed on a plurality of resources of the resource type; storing the plurality of reusable role definitions in the data store; receiving, by the processing device, a first request to assign a user to a first role, the first request specifying a first cloud computing resource of a plurality of cloud computing resources of a respective resource type in the e cloud provider system; identifying, by the processing device, a role definition corresponding to the respective resource type in the data store storing the reusable role definitions, the identified role definition comprising the respective resource type and an action set permitted to be performed in the cloud provider system on the plurality of cloud computing resources of the respective resource type; creating, by the processing device, the first role for the user on the first cloud computing resource, wherein creating the first role comprises associating the identified role definition with the first cloud computing resource and the user; receiving, by the processing device, a second request to assign the user to a second role, the second request specifying a second cloud computing resource of the plurality of cloud computing resources of the respective resource type; and creating, by the processing device, the second role for the user on the second cloud computing resource in view of the identified role definition corresponding to the resource type, wherein the identified role definition that was used for the first role of the user is being reused for the second role of the user, and wherein creating the second role comprises associating the identified role definition with the second cloud computing resource and the user.