The following are the cluster-wide administration roles that are available:

• hostManager: Monitor and manage servers in a cluster.
• clusterManager: Provides management and monitoring actions on the cluster. A user with this role can access the config and local databases, which are used in sharding and replication, respectively.
• clusterMonitor: Read-only access for monitoring tools provided by MongoDB, such as MongoDB Cloud Manager and the Ops Manager agent.
• clusterAdmin: Provides the greatest cluster management access. This role combines the privileges that are granted by the clusterManager, clusterMonitor, and hostManager roles. Additionally, the role provides the dropDatabase action.