HP Insight Cluster Management Utility manual HP Insight CMU diskless API, Examples

Table 4 HP Insight CMU GUI features and their corresponding commands

HP Insight CMU GUI feature (right-click node selection)	HP Insight CMU management node command
Management Card Connection	/opt/cmu/bin/cmu_console
Shutdown	/opt/cmu/tools/halt.exp
Power Off	/opt/cmu/bin/cmu_power
Boot	/opt/cmu/tools/boot.exp
Reboot	/opt/cmu/tools/reboot.exp
Multiple Window Broadcast (Mgt Card)	/opt/cmu/bin/cmu_console
Backup (Capture Image)	/opt/cmu/bin/cmu_backup
Cloning (Deploy Image)	/opt/cmu/bin/cmu_clone
Autoinstall (kickstartautoyastpreseed)	/opt/cmu/bin/cmu_autoinstall_node
Update→Get Nodes Static Info	/opt/cmu/tools/cmu_cn_install
Update→Install CMU Monitoring Client	/opt/cmu/tools/cmu_cn_install
Insight→Show BIOS Settings	/opt/cmu/bin/cmu_firmware_mgmt
Insight→Show BIOS Version	/opt/cmu/bin/cmu_firmware_mgmt
Insight→Upgrade Firmware	/opt/cmu/bin/cmu_firmware_mgmt

7.1.3 Examples

To grant shutdown and reboot privileges to user 'jsmith' (note that ALL can be replaced with localhost or the hostname of the HP Insight CMU management node):

jsmith ALL = NOPASSWD: /opt/cmu/tools/halt.exp /opt/cmu/tools/reboot.exp

The /etc/sudoers file supports creating "command aliases" when you need to refer to a group of commands. For example, the following lines configure useful HP Insight CMU aliases by grouping the commands into three categories: power control, provisioning, and the rest of the features:

Cmnd_Alias CMU_POWER = /opt/cmu/tools/halt.exp /opt/cmu/bin/cmu_power /opt/cmu/tools/boot.exp /opt/cmu/tools/reboot.exp

Cmnd_Alias CMU_IMAGE = /opt/cmu/bin/cmu_backup /opt/cmu/bin/cmu_clone /opt/cmu/tools/cmu_autoinstall_node Cmnd_Alias CMU_ETC = /opt/cmu/bin/cmu_console /opt/cmu/tools/cmu_cn_install /opt/cmu/bin/cmu_firmware_mgmt

Now you can grant power control to user 'cjones' as long as he provides a password:

cjones ALL = CMU_POWER

To let user 'bstevens' control power and provisioning without a password:

bstevens ALL = NOPASSWD: CMU_POWER CMU_IMAGE

To grant user 'sbarney' full HP Insight CMU control without a password (similar to the current root user capability in the HP Insight CMU GUI):

sbarney ALL = NOPASSWD: CMU_POWER CMU_IMAGE CMU_ETC

If a non-root user in the HP Insight CMU GUI tries to execute a command without sudo privileges, the sudo command prevents it from running and logs the incident.

7.2 HP Insight CMU diskless API

As of version 7.1, HP Insight CMU supports a diskless API. This diskless API provides hooks into the creation, management, and booting of diskless logical groups in HP Insight CMU. This diskless API enables the development and/or integration of different "diskless OS" implementations within HP Insight CMU.

114 Advanced topics