Managing Cluster Roles

Managing Cluster Roles

Understanding Cluster Roles and Access

Role Based Access Control

Modify access levels for users and groups

Understanding Cluster Roles and Access

Role Based Access Control

Modify access levels for users and groups

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Ambari-level administrators can assign user and group access to Ambari-, Cluster-, Host-, Service-, and User- (view- only) level permissions.

A granted level of user access is a role. Role-based access control effectively distributes the responsibilities of managing a cluster while not relinquishing total control of the Ambari management facility.

Access levels allow administrators to categorize cluster users and groups based on the permissions that each level includes.

The following roles are based on access-levels. Access levels enhance the granularity of permissions that can be granted to Ambari users and groups:

Role	Description
Cluster User	Users assigned to the Cluster User role can view information about the cluster and its services, including configurations, service status, and health alerts.
Service Operator	Users assigned to the Service Operator role have control over service life cycles, such as starting and stopping services, performing service checks, and performing service-specific tasks such as rebalancing HDFS and refreshing the YARN Capacity Scheduler.
Service Administrator	Users assigned to the Service Administrator role have the same permissions as users assigned to the Service Operator role but have the added ability to configure services. This includes the ability to manage configuration groups, move service masters, and enable HA.
Cluster Operator	Users assigned to the Cluster Operator role have the same permissions as users assigned to the Service Administrator role but have the added ability to perform host-level tasks such as adding and removing hosts and components.
Cluster Administrator	Users assigned to the Cluster Administrators role have control over the relevant cluster, its hosts, and services.
Ambari Administrator	Ambari Administrator users have full control over all aspects of Ambari. This includes the ability to create clusters, change cluster names, register new versions of cluster software, and fully control all clusters managed by the Ambari instance.

Permissions that an Ambari-level administrator assigns each user or group define each role.

Use these tables to determine what permissions each role includes.

Table 1: Service-Level Permissions

Permissions	Cluster User	Service Operator	Service Administrator	Cluster Operator	Cluster Administrator	Ambari Administrator
View status information
View configurations
Compare configurations
View service alerts
Start, stop, or restart service
Decommission or recommission
Run service checks
Turn maintenance mode on or off
Perform service-specific tasks
Modify configurations
Manage configuration groups
Move to Another Host
Enable HA
Enable or Disable Service Alerts
Add Service to Cluster

Table 2: Host-Level Permissions

Table 3: Cluster-Level Permissions

Permissions	Cluster User	Service Operator	Service Administrator	Cluster Operator	Cluster Administrator	Ambari Administrator
View status information
View configuration
View alerts
Enable or disable alerts
Enable or disable Kerberos
Upgrade or downgrade stack

Table 4: Ambari-Level Permissions

Permissions	Cluster User	Service Operator	Service Administrator	Cluster Operator	Cluster Administrator	Ambari Administrator
Create new clusters
Set service users and groups
Rename clusters
Manage users
Manage groups
Assign permission and roles
Manage stack versions
Edit stack repository URLs

Use Ambari Admin > Users to manage access levels for users and groups.

About this task

An Ambari Admin can manage the role assignment of local and remote users imported from LDAP. An Ambari administrator can control the access level for any user or group.

Procedure

In Ambari Admin > Users, click Users to display the current users known to Ambari.
To modify access for a user, click Edit next to a user name.
In Admin/Users, click an option from the User Access list.
In Ambari Admin > Users, click Groups to display the current groups known to Ambari.
To modify access for a group, click Edit next to a group name.

In Admin/Groups for that group, click an option from the Group Access

Permissions

Cluster User

Service Operator

Service Administrator

Cluster Operator

Cluster Administrator

Ambari Administrator

View status information

View configuration

Turn maintenance mode on or off

Install components

Add or delete hosts