Managing Clusters

PERMISSIONS REQUIRED
To manage a cluster, you need to have administrator access to that cluster. To add a cluster, you need to have administrator access to the relevant provider account. To get access, contact your Nimbul administrator. See also Permissions and Roles and Clusters and Servers: Overview.

Topics covered on this page:

    Add, Edit or Delete a Cluster
    Configure or Update Cluster Details

Add, Edit or Delete a Cluster

Adding a Cluster

To add a cluster, complete these steps:

  1. In the main Nimbul menu, click Clusters.
  2. To the right of the name of any provider account, click Add a New Cluster. (This link does not appear if you do not have administrator access to any provider accounts.)



  3. On the New Cluster page, select a provider account. Enter a cluster name and, optionally, a description.
  4. Click Create Cluster.

Editing a Cluster

To edit basic cluster information, complete these steps:

  1. In the main Nimbul menu, click Clusters.
  2. In the Name column of the appropriate provider account table, click the name of the cluster you want to edit.
  3. At the top of the cluster details page (under the name of the cluster), click the edit link.



  4. Edit the fields as necessary.
  5. To save your changes, click Update.

Deleting a Cluster

WARNING: In most cases, you will not need to delete a cluster. A cluster can remain dormant in Nimbul indefinitely. Delete the cluster only if you are certain you will never need access to it again.

To delete a cluster, complete these steps:

  1. In the main Nimbul menu, click Clusters.
  2. Find the cluster you want to delete. In the Actions column for that cluster’s row, click the trash can icon. A warning message appears.
  3. Click OK. A second warning appears. Type yes, then click OK.

Configure or Update a Cluster

Viewing Cluster Details

To configure or update a cluster, first view the cluster details by completing these steps:

  1. In the main Nimbul menu, click Clusters.
  2. Find the relevant provider account table. In the Name column, click the name of the cluster you want to configure or update. The cluster details page appears.



The cluster details page contains the following tabs:

Tab Available Actions
Instances
  • View summary information about instances in the cluster.
  • Reboot and terminate instances in the cluster.
  • Click instance IDs, server names and security group names to view details or make changes.
  • View console output.
Servers
  • View summary information about servers currently in the cluster.
  • Add and delete servers.
  • Click server names to view and edit server profiles.
  • View current instances by server and view console output.
  • Launch, terminate and reboot instances.
  • Click instance IDs and security group names to view details or make changes.
  • Remove security groups from servers.
For detailed information about the Servers tab, see Managing Servers.
Addresses
  • View summary information about the elastic IP addresses that can be associated with instances in the cluster.
  • For associated elastic IP addresses, click an instance ID to view instance details and change elastic IP associations.
Storage
  • View summary information about volumes and snapshots attached to or created from instances in the cluster.
  • Create and delete snapshots and restore earlier snapshots.
Variables
  • View existing cluster variables and edit their parameters.
  • Remove variables from a cluster.
  • View and edit cluster startup scripts.
Note: To reorder variables, use the first column of the table to click and drag the appropriate rows to new positions.

Cluster variables and startup scripts are in conjunction with the variables and startup script defined at the provider account level and the server level.
DNS
  • View existing hostnames, including servers currently using those hostnames, plus accrued and in-use leases.
  • Release all leases acquired for a particular hostname by instances started under this server profile. (Click the yellow arrow icon to release leases.)
  • Click a server name to view the server profile and make changes.
Note: Hostnames are not assigned at the cluster level. You can add hostnames to provider accounts and to servers.
Security
  • View the current list of cluster administrators.
  • Add and remove cluster administrators.
Stats
  • View various statistics for the cluster, including zones, types and pricing.

 

Configuring and Updating Cluster Details

UI Elements

Use the tabs described above to configure and update cluster details as you use Nimbul. Note the following UI elements on each tab:

For more information, see User Interface Elements.

Related Topics

Next: Managing Servers »