I verified neutron 2:28.0.0-0ubuntu1.1 from resolute-proposed.
Environment:
- Ubuntu 26.04 LTS (Resolute), amd64
- Kernel 7.0.0-30-generic
- LXD virtual machine with 8 vCPUs and 24 GiB RAM
- regress-stack revision:
5f21ed12d2f1820d08d527013803267fce7a6754
- Apache mod_wsgi with four neutron-api worker processes
The following Neutron packages were upgraded from
2:28.0.0-0ubuntu1 to 2:28.0.0-0ubuntu1.1:
- neutron-api
- neutron-common
- neutron-ovn-metadata-agent
- neutron-periodic-workers
- neutron-rpc-server
- python3-neutron
Baseline reproduction with 2:28.0.0-0ubuntu1:
- No default network segment range was initialized.
- Only one of the four expected OVN mechanism-driver hash-ring nodes
remained registered.
- Creating a tenant network failed as expected:
POST /v2.0/networks HTTP/1.1 -> 503
"Unable to create the network. No project network is available for
allocation."
Results with 2:28.0.0-0ubuntu1.1 from resolute-proposed:
- Two default segment ranges were initialized:
- Geneve: 1-65535
- VLAN: 1-4094
- Four distinct OVN hash-ring nodes were registered for the four
mod_wsgi workers.
- All four nodes shared exactly one created_at value.
- Tenant network creation succeeded:
POST /v2.0/networks HTTP/1.1 -> 201
- The resulting network was ACTIVE and used Geneve segmentation ID 1.
- After restarting Apache:
- created_at advanced from 2026-09-01 12:21:35 to
2026-09-01 12:43:10;
- four distinct nodes remained;
- all nodes shared the new created_at value;
- no IntegrityError or duplicate-key collision was logged.
- apache2, neutron-rpc-server, neutron-periodic-workers, and
neutron-ovn-metadata-agent remained active.
I also ran the regress-stack Tempest selection (tempest tests are
upstream functional tests):
Ran: 175
Passed: 154
Skipped: 21
Failed: 0
The skips were capability/configuration skips, including unavailable
Swift/Cinder tests and Watcher microversions outside the configured
range.
I exercised the package test's mod_wsgi, segment-range, hash-ring, and
restart checks directly against the deployed cloud.
** Tags removed: verification-needed-resolute
** Tags added: verification-done-resolute
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https://bugs.launchpad.net/bugs/2150285
Title:
Neutron 2026.1 with mod_wsgi packaging skips ML2 segment range
initialization, causing tenant network creation failures
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