feat(neutron): Upgrade neutron dependency to 2026.1

.github/workflows/containers-openstack.yaml

@@ -37,7 +37,6 @@ jobs:
           - glance
           - horizon
           - keystone
-          - neutron
           - nova
           - octavia
           - openstack-client
@@ -51,6 +50,15 @@ jobs:
       build_args: OPENSTACK_VERSION=2025.2
       latest_name: "2025.2"
 
+  neutron:
+    uses: ./.github/workflows/build-container-reuse.yaml
+    secrets: inherit
+    with:
+      container_name: neutron
+      dockerfile_path: containers/neutron/Dockerfile
+      build_args: OPENSTACK_VERSION=2026.1
+      latest_name: "2026.1"
+
   ironic:
     uses: ./.github/workflows/build-container-reuse.yaml
     secrets: inherit

charts/argocd-understack/values.yaml

@@ -386,7 +386,7 @@ site:
     wave: 2
     # -- Chart version for Neutron
     # renovate: datasource=helm depName=neutron registryUrl=https://tarballs.opendev.org/openstack/openstack-helm
-    chartVersion: 2025.2.33+4df43bd83
+    chartVersion: 2026.1.8+872fd69e7
 
   # -- Placement (Placement Service)
   placement:

components/images-openstack.yaml

@@ -34,18 +34,18 @@ images:
     ironic_retrive_swift_config: "ghcr.io/rackerlabs/understack/openstack-client:2025.2"
 
     # neutron
-    neutron_db_sync: "ghcr.io/rackerlabs/understack/neutron:2025.2"
-    neutron_dhcp: "ghcr.io/rackerlabs/understack/neutron:2025.2"
-    neutron_l3: "ghcr.io/rackerlabs/understack/neutron:2025.2"
-    neutron_l2gw: "ghcr.io/rackerlabs/understack/neutron:2025.2"
-    neutron_linuxbridge_agent: "ghcr.io/rackerlabs/understack/neutron:2025.2"
-    neutron_metadata: "ghcr.io/rackerlabs/understack/neutron:2025.2"
-    neutron_ovn_metadata: "ghcr.io/rackerlabs/understack/neutron:2025.2"
-    neutron_openvswitch_agent: "ghcr.io/rackerlabs/understack/neutron:2025.2"
-    neutron_server: "ghcr.io/rackerlabs/understack/neutron:2025.2"
-    neutron_rpc_server: "ghcr.io/rackerlabs/understack/neutron:2025.2"
-    neutron_bagpipe_bgp: "ghcr.io/rackerlabs/understack/neutron:2025.2"
-    neutron_netns_cleanup_cron: "ghcr.io/rackerlabs/understack/neutron:2025.2"
+    neutron_db_sync: "ghcr.io/rackerlabs/understack/neutron:pr-2059"
+    neutron_dhcp: "ghcr.io/rackerlabs/understack/neutron:pr-2059"
+    neutron_l3: "ghcr.io/rackerlabs/understack/neutron:pr-2059"
+    neutron_l2gw: "ghcr.io/rackerlabs/understack/neutron:pr-2059"
+    neutron_linuxbridge_agent: "ghcr.io/rackerlabs/understack/neutron:pr-2059"
+    neutron_metadata: "ghcr.io/rackerlabs/understack/neutron:pr-2059"
+    neutron_ovn_metadata: "ghcr.io/rackerlabs/understack/neutron:pr-2059"
+    neutron_openvswitch_agent: "ghcr.io/rackerlabs/understack/neutron:pr-2059"
+    neutron_server: "ghcr.io/rackerlabs/understack/neutron:pr-2059"
+    neutron_rpc_server: "ghcr.io/rackerlabs/understack/neutron:pr-2059"
+    neutron_bagpipe_bgp: "ghcr.io/rackerlabs/understack/neutron:pr-2059"
+    neutron_netns_cleanup_cron: "ghcr.io/rackerlabs/understack/neutron:pr-2059"
 
     # nova
     nova_api: "ghcr.io/rackerlabs/understack/nova:2025.2"

containers/neutron/Dockerfile

@@ -5,8 +5,8 @@ FROM quay.io/airshipit/neutron:${OPENSTACK_VERSION}-ubuntu_noble AS build
 
 COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
 
-# renovate: name=openstack/neutron repo=https://github.com/rackerlabs/neutron.git branch=stable/2025.2
-ARG NEUTRON_GIT_REF=feca3f33e610555099caececa990f18c2bad8c9c
+# renovate: name=openstack/neutron repo=https://github.com/rackerlabs/neutron.git branch=stable/2026.1
+ARG NEUTRON_GIT_REF=1321ccbc5cd56d5502e2335c8a5a374801d88fb9
 ADD --keep-git-dir=true https://github.com/rackerlabs/neutron.git#${NEUTRON_GIT_REF} /src/neutron
 RUN git -C /src/neutron fetch --unshallow --tags
 

python/neutron-understack/neutron_understack/routers.py

@@ -280,7 +280,7 @@ def fetch_shared_router_port(segment: NetworkSegment) -> Port | None:
 
     if not shared_ports:
         LOG.error(
-            "No router shared ports found for segment %(segment)s", {"segment", segment}
+            "No router shared ports found for segment %(segment)s", {"segment": segment}
         )
         return
     LOG.debug("Router shared ports found %(ports)s", {"ports": shared_ports})

python/neutron-understack/pyproject.toml

@@ -26,7 +26,7 @@ classifiers = [
 dependencies = [
     "requests>=2,<3",
     "neutron-lib>=3,<4",
-    "neutron>=27,<28",
+    "neutron>=27,<29",
 ]
 
 [project.entry-points."neutron.ml2.mechanism_drivers"]