ironic/releasenotes/notes/add-http-boot-support-a5a90e87a91a87d5.yaml
Julia Kreger e19fd1d050 Add HTTP versions of network boot interfaces
This change adds two network boot interfaces, ``http`` and
``http-ipxe``. These interfaces are based upon the underlying PXE
boot interface code in ironic, and where this differs is it signals
to Ironic that we must do the boot loader needful in terms of telling
DHCP to send a URL instead of a filename and IP address for PXE
as a starting point.

The naming of the interfaces focuses more on the transport mechanism
and then specific style. Very similar to existing ``pxe`` and ``ipxe``
interface modeling, except in the ``ipxe`` case, it is more a specific
loader and mechanism to be utilized.

Related-Bug: #2032380
Change-Id: Ie7ace88b62b9179f640ef2a732dd228e12bd320d
2024-02-09 13:13:19 -08:00

22 lines
1.1 KiB
YAML

---
features:
- |
Adds a ``http`` boot interface, based upon the ``pxe`` boot interface
which informs the DHCP server of an HTTP URL to boot the machine from,
and then requests the BMC boot the machine in UEFI HTTP mode.
- |
Adds a ``http-ipxe`` boot interface, based upon the ``ipxe`` boot interface
which informs the DHCP server of an HTTP URL to boot the machine from,
and then requests the BMC boot the machine in UEFI HTTP mode.
issues:
- |
Testing of the ``http`` boot interface with Ubuntu 22.04 provided Grub2
yielded some intermittent failures which appear to be more environmental
in nature as the signed Shim loader would start, then load the GRUB
loader, and then some of the expected files might be attempted to be
accessed, and then fail due to an apparent transfer timeout. Consultation
with some grub developers concur this is likely environmental, meaning
the specific grub build or CI performance related. If you encounter any
issues, please do not hestitate to reach out to the Ironic developer
community.