The ironic_inspector.pxe_filter.base Module

The ironic_inspector.pxe_filter.base Module

Base code for PXE boot filtering.

class ironic_inspector.pxe_filter.base.BaseFilter[source]

Bases: ironic_inspector.pxe_filter.interface.FilterDriver

The generic PXE boot filtering interface implementation.

This driver doesn’t do anything but provides a basic synchronization and initialization logic for some drivers to reuse. Subclasses have to provide a custom sync() method.

fsm = <automaton.machines.FiniteMachine object>
fsm_reset_on_error(**kwds)[source]

Reset the filter driver upon generic exception.

The context is self.fsm. The automaton.exceptions.NotFound error is cast to the InvalidFilterDriverState error. Other exceptions trigger self.reset()

Raises:InvalidFilterDriverState
Returns:nothing.
get_periodic_sync_task()[source]

Get periodic sync task for the filter.

The periodic task returned is casting the InvalidFilterDriverState to the periodics.NeverAgain exception to quit looping.

Raises:periodics.NeverAgain
Returns:a periodic task to be run in the background.
init_filter(*args, **kwargs)[source]

Base driver initialization logic. Locked.

Raises:InvalidFilterDriverState
Returns:nothing.
reset()[source]

Reset internal driver state.

This method is called by the fsm_context manager upon exception as well as by the tear_down_filter method. A subclass might wish to override as necessary, though must not lock the driver. The overriding subclass should up-call.

Returns:nothing.
state

Current driver state.

sync(*args, **kwargs)[source]

Base driver sync logic. Locked.

Parameters:ironic – obligatory ironic client instance
Returns:nothing.
tear_down_filter()[source]

Base driver tear down logic. Locked.

Returns:nothing.
class ironic_inspector.pxe_filter.base.Events[source]

Bases: object

PXE filter driver transitions.

initialize = 'initialize'
reset = 'reset'
sync = 'sync'
exception ironic_inspector.pxe_filter.base.InvalidFilterDriverState[source]

Bases: exceptions.RuntimeError

The fsm of the filter driver raised an error.

class ironic_inspector.pxe_filter.base.NoopFilter[source]

Bases: ironic_inspector.pxe_filter.base.BaseFilter

A trivial PXE boot filter.

class ironic_inspector.pxe_filter.base.States[source]

Bases: object

PXE filter driver states.

initialized = 'initialized'
uninitialized = 'uninitialized'
ironic_inspector.pxe_filter.base.driver()[source]

Get the driver for the PXE filter.

Returns:the singleton PXE filter driver object.
ironic_inspector.pxe_filter.base.locked_driver_event(event)[source]

Call driver method having processed the fsm event.

Creative Commons Attribution 3.0 License

Except where otherwise noted, this document is licensed under Creative Commons Attribution 3.0 License. See all OpenStack Legal Documents.