The ironic.drivers.modules.pxe Module

PXE Boot Interface

class ironic.drivers.modules.pxe.PXEBoot

Bases: ironic.drivers.base.BootInterface

clean_up_instance(*args, **kwargs)

Cleans up the boot of instance.

This method cleans up the environment that was setup for booting the instance. It unlinks the instance kernel/ramdisk in node’s directory in tftproot and removes the PXE config.

Parameters:task – a task from TaskManager. Returns:None

clean_up_ramdisk(*args, **kwargs)

Cleans up the boot of ironic ramdisk.

This method cleans up the PXE environment that was setup for booting the deploy ramdisk. It unlinks the deploy kernel/ramdisk in the node’s directory in tftproot and removes it’s PXE config.

Parameters:task – a task from TaskManager. Returns:None

get_properties()

Return the properties of the interface.

Returns:dictionary of <property name>:<property description> entries.

prepare_instance(*args, **kwargs)

Prepares the boot of instance.

This method prepares the boot of the instance after reading relevant information from the node’s instance_info. In case of netboot, it updates the dhcp entries and switches the PXE config. In case of localboot, it cleans up the PXE config.

Parameters:task – a task from TaskManager. Returns:None

prepare_ramdisk(*args, **kwargs)

Prepares the boot of Ironic ramdisk using PXE.

This method prepares the boot of the deploy kernel/ramdisk after reading relevant information from the node’s driver_info and instance_info.

Parameters:

• task – a task from TaskManager.
• ramdisk_params – the parameters to be passed to the ramdisk. pxe driver passes these parameters as kernel command-line arguments.

Returns:

None

Raises:

MissingParameterValue, if some information is missing in node’s driver_info or instance_info.

Raises:

InvalidParameterValue, if some information provided is invalid.

Raises:

IronicException, if some power or set boot boot device operation failed on the node.

validate(*args, **kwargs)

Validate the PXE-specific info for booting deploy/instance images.

This method validates the PXE-specific info for booting the ramdisk and instance on the node. If invalid, raises an exception; otherwise returns None.

Parameters:task – a task from TaskManager. Returns:None Raises:InvalidParameterValue, if some parameters are invalid. Raises:MissingParameterValue, if some required parameters are missing.

class ironic.drivers.modules.pxe.TFTPImageCache

Bases: ironic.drivers.modules.image_cache.ImageCache