iLO Management Interface

https://blueprints.launchpad.net/ironic/+spec/ilo-management-interface

This blueprint adds support to management Interface for HP ProLiant Servers using iLO client python library.

Problem description

Currently, IloManagement Interface used in IloVirtualMediaIscsiDriver, IloVirtualMediaAgentDriver and PXEAndIloDriver uses IPMIManagement to support management operations like get_boot_device, get_supported_boot_devices.

This leads to dependency of ipmitool on iLO servers.

Proposed change

  • Our proposed change is to do above operations using iLO for consistency, simplicity and correctness.

  • Move existing IloManagement class from ilo/deploy.py to ilo/management.py.

  • Change the existing IloManagement Class to inherit from base.ManagementInterface instead of ipmitool.IPMIManagement.

  • Implement the following methods using iLO client python library.

    • validate() - To validate iLO driver specific information. (ilo_username, ilo_password, ilo_address)
    • get_boot_device() - To get the current boot device of a node with the indication whether it’s persistent, or not.
    • get_supported_boot_devices() - To get a list of the supported boot devices of a node. The supported boot devices will be disk, pxe and cdrom.
  • Move set_boot_device() functionality to ManagementInterface and change the current invocations to manager_utils.node_set_boot_device().

  • Implementation of get_sensors_data() is not in scope of current spec. It is proposed as part of the following blueprint- https://blueprints.launchpad.net/ironic/+spec/send-ilo-health-metrics-to-ceilometer

Alternatives

Continue to use IPMI Interface to management operations.

Data model impact

None

REST API impact

None

RPC API impact

None

Driver API impact

None

Nova driver impact

None

Security impact

None

Other end user impact

None

Scalability impact

None

Performance Impact

None

Other deployer impact

The following which are already part of driver_info fields are required:
  • ilo_address - hostname or IP address of the iLO.
  • ilo_username - the username for the iLO with administrator privileges.
  • ilo_password - the password for ilo_username.
  • ilo_client_timeout - the timeout for iLO operations. The default value will be 60 seconds.
  • ilo_client_port - the port to be used by iLO client for iLO operations. The default value will be 443.

Developer impact

None

Implementation

Assignee(s)

Primary assignee:
anusha-iiitm

Work Items

  • Implement get_boot_device and get_supported_boot_devices.
  • Move set_boot_device() functionality from ilo/common.py to ilo/management.py.
  • Change the current invocations of set_boot_device from ilo_common.set_boot_device() to manager_utils.node_set_boot_device().

Dependencies

  • Depends on proliantUtils library.
  • Targeted for HP ProLiant servers with iLO4.

Testing

  • Unit tests will be added, mocking proliantutils library.

Upgrades and Backwards Compatibility

None

Documentation Impact

None