be2bd0ea04
When Ironic's CI went to Ubuntu Noble, IPv6 testing broke. Ultimately, that was because the job was changed from BIOS boot mode to UEFI. Which in theory was a good thing. But in reviewing the EDK2 known bugs[0], it is clear IPv6 testing moving forward needs to be manual and cannot be done automatically. For the reader's context, EDK2 is the source of the firmware used for Libvirt UEFI VMs. In attempting to work through the issues, we discovered: - EDK2 doesn't care about stateless (auto discovery) mode, and thus doesn't work when that is set. It attempts to solicit an address, which is an open bug [1] from 2019, opened by an Ironic contributor. - EDK2 *always* attempts PXE v4 first, which takes 60 seconds to timeout, before attempting PXE v6. - PXE v6 *might* work before it times out, which takes 5 minutes to occur, if the dhcp server has cleared leases, but there is no guarentee. In most cases the result is the DHCP server views the address as handed out and that there are no free addresses available to supply. This is also rooted in bug [2], also opened in 2019. - EDK2 then switches gears and tries HTTPBoot... simiarly, but the way it does so, noted in bug [3], is also incompatible with dnsmasq. There are additional bugs, but one sort of gets the idea. Some of this is compounded by aspects like dnsmasq attempting to be strict about responding to requests in the DHCPv6 model. A different DHCP server *might* demonstrate a little differently, but fundimentally the same underlying issues in EDK2 will make testing difficult. In attempting to fix this issue, we also attempted to revert back to BIOS mode. This mode uses iPXE ROM images built for QEMU, yet we quickly discovered these pre-built ROM images lacked IPv6 support in Ubuntu Noble. This likely a regression of Ubuntu, but bug tracking points directly to Upstream iPXE which is not valid as it is a compile time option. Testing the ROMs showed only DHCPv4 being attempted and IPv6 router advertisements being entirely ignored. In a sense, if it did work, it would still kind of be cheating as the iPXE ROM is able to skip the first part of the complexity related to PXE in general. In other words, it is not an entirely realistic test when compared to Bare Metal. As such, we don't have a forward path to "fix" this CI job as is. We know the code works. We know vendor firmware sometimes has quarks like needing stateless or stateful operation, We know Ironic does the right thing... within it's capabilities. We just can't test this in CI. [0]: https://github.com/tianocore/edk2/issues?q=is%3Aissue%20state%3Aopen%20%20ipv6 [1]: https://github.com/tianocore/edk2/issues/9832 [2]: https://github.com/tianocore/edk2/issues/9828 [3]: https://github.com/tianocore/edk2/issues/9689 Change-Id: Ifc25bc1e1abb949892a1297a313d63f74937c9a1
108 lines
4.6 KiB
YAML
108 lines
4.6 KiB
YAML
---
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- project:
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templates:
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- check-requirements
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- openstack-cover-jobs
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- openstack-python3-jobs
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- openstack-python3-jobs-arm64
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- periodic-stable-jobs
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- publish-openstack-docs-pti
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- release-notes-jobs-python3
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check:
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jobs:
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- ironic-tox-unit-mysql-migrations
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- ironic-tox-unit-with-driver-libs
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- ironic-cross-sushy:
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voting: false
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- ironic-tempest-functional-python3
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- ironic-standalone-redfish:
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voting: false
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- ironic-tempest-bios-redfish-pxe
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- ironic-tempest-uefi-redfish-vmedia
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- ironic-tempest-ramdisk-bios-snmp-pxe
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- ironic-tempest-uefi-redfish-https
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- ironic-tempest-ovn-uefi-ipmi-pxe
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# NOTE(TheJulia) Marking multinode non-voting on 20210311
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# Due to a high failure rate on limestone where the compute1
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# machine never appears to be able to communicate across the
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# vxlan tunnel, possible mtu issue, but non-voting until we
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# understand it in mind for the upcoming release.
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- ironic-tempest-ipa-wholedisk-direct-tinyipa-multinode:
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voting: false
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- ironic-tempest-ipa-wholedisk-direct-tinyipa-multinode-shard:
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voting: false
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- ironic-tempest-bios-ipmi-direct-tinyipa
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- ironic-tempest-bfv
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- ironic-tempest-ipa-partition-uefi-pxe-grub2
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- ironic-tempest-uefi-redfish-vmedia-4k
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# NOTE(rpittau): Currently broken because of an issue with parted
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- metalsmith-integration-glance-centos9-uefi:
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voting: false
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#####################################################################
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# Grenade should be removed in advance of the unmaintained branches #
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# as it doesn't know how to upgrade from an unmaintained branch. #
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#####################################################################
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- ironic-grenade
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- ironic-grenade-skip-level:
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voting: false
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###############################################################
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# CI Jobs Below this line may be *removed* on Stable Branches #
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###############################################################
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# NOTE(TheJulia): At present, metal3 doesn't leverage
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# stable branches, and as far as we are aware these jobs
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# can be removed once this branch is made stable.
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- metal3-integration
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# Non-voting jobs
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- ironic-inspector-tempest:
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voting: false
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- ironic-inspector-tempest-uefi-redfish-vmedia:
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voting: false
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- ironic-standalone-aarch64:
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voting: false
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- ironic-tempest-ipa-wholedisk-bios-ipmi-direct-dib:
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voting: false
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- ironic-standalone-anaconda:
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voting: false
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- bifrost-integration-tinyipa-ubuntu-noble:
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voting: false
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- bifrost-integration-redfish-vmedia-uefi-centos-9:
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voting: false
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gate:
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jobs:
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- ironic-tox-unit-mysql-migrations
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- ironic-tox-unit-with-driver-libs
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- ironic-tempest-functional-python3
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- ironic-grenade
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# NOTE(JayF): Disabling standalone jobs on 20240228 from voting, there's a
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# dnsmasq bug only exposed on these jobs.
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#- ironic-standalone-redfish
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- ironic-tempest-bios-redfish-pxe
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- ironic-tempest-uefi-redfish-vmedia
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- ironic-tempest-ramdisk-bios-snmp-pxe
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- ironic-tempest-uefi-redfish-https
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- ironic-tempest-ovn-uefi-ipmi-pxe
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# NOTE(TheJulia): Disabled multinode on 20210311 due to Limestone
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# seeming to be
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# - ironic-tempest-ipa-wholedisk-direct-tinyipa-multinode
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- ironic-tempest-bios-ipmi-direct-tinyipa
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- ironic-tempest-bfv
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- ironic-tempest-ipa-partition-uefi-pxe-grub2
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- ironic-tempest-uefi-redfish-vmedia-4k
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# NOTE(rpittau): Currently broken because of an issue with parted
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#- metalsmith-integration-glance-centos9-uefi
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# NOTE(TheJulia): At present, metal3 doesn't leverage
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# stable branches, and as far as we are aware these jobs
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# can be removed once this branch is made stable.
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- metal3-integration
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experimental:
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jobs:
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# NOTE(dtantsur): this job is rarely used, no need to run it always.
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- bifrost-benchmark-ironic:
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voting: false
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# TODO(dtantsur): these jobs are useful but currently hopelessly
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# broken. Fix them and bring back to the gate.
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- ironic-grenade-multinode-multitenant:
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voting: false
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- ironic-inspector-tempest-discovery-fast-track:
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voting: false
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