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chore(magnum): use Ubuntu 24.04 Kubernetes images #4358

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5 changes: 5 additions & 0 deletions releasenotes/notes/default-magnum-ubuntu-2404-images-672f9316ac514c89.yaml
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
upgrade:
- |
The default Magnum Kubernetes images now use Ubuntu 24.04 and Kubernetes
versions 1.33.12, 1.34.8, 1.35.5, and 1.36.1.
8 changes: 4 additions & 4 deletions roles/magnum/README.md
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Expand Up @@ -3,13 +3,13 @@
## Creating cluster templates

By default, Atmosphere deploys a set of images for Kubernetes. These cover a
range of Kubernetes versions, from 1.25.11 to 1.27.3. You can create the
cluster templates for them with the following command:
range of Kubernetes versions, from 1.33.12 to 1.36.1, on Ubuntu 24.04. You can
create the cluster templates for them with the following command:

```shell
for version in v1.25.11 v1.26.6 v1.27.3; do
for version in v1.33.12 v1.34.8 v1.35.5 v1.36.1; do
openstack coe cluster template create \
--image $(openstack image show ubuntu-2204-kube-${version} -c id -f value) \
--image $(openstack image show ubuntu-2404-kube-${version} -c id -f value) \
--external-network public \
--dns-nameserver 8.8.8.8 \
--master-lb-enabled \
Expand Down
15 changes: 9 additions & 6 deletions roles/magnum/vars/main.yml
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Expand Up @@ -109,12 +109,15 @@ _magnum_helm_values:
_magnum_registry_ingress_annotations: {}

_magnum_images:
- name: ubuntu-2204-kube-v1.32.10
url: https://github.com/vexxhost/capo-image-elements/releases/download/2025.12-3/ubuntu-22.04-v1.32.10.qcow2
- name: ubuntu-2404-kube-v1.33.12
url: https://github.com/vexxhost/capo-image-elements/releases/download/2026.05-7/ubuntu-24.04-v1.33.12.qcow2
distro: ubuntu
- name: ubuntu-2204-kube-v1.33.7
url: https://github.com/vexxhost/capo-image-elements/releases/download/2025.12-3/ubuntu-22.04-v1.33.7.qcow2
- name: ubuntu-2404-kube-v1.34.8
url: https://github.com/vexxhost/capo-image-elements/releases/download/2026.05-7/ubuntu-24.04-v1.34.8.qcow2
distro: ubuntu
- name: ubuntu-2204-kube-v1.34.3
url: https://github.com/vexxhost/capo-image-elements/releases/download/2025.12-3/ubuntu-22.04-v1.34.3.qcow2
- name: ubuntu-2404-kube-v1.35.5
url: https://github.com/vexxhost/capo-image-elements/releases/download/2026.05-7/ubuntu-24.04-v1.35.5.qcow2
distro: ubuntu
- name: ubuntu-2404-kube-v1.36.1
url: https://github.com/vexxhost/capo-image-elements/releases/download/2026.05-7/ubuntu-24.04-v1.36.1.qcow2
distro: ubuntu
44 changes: 38 additions & 6 deletions roles/magnum/vars_test.go
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Expand Up @@ -20,6 +20,13 @@ var (

type Vars struct {
openstack_helm.HelmValues `yaml:"_magnum_helm_values"`
MagnumImages []MagnumImage `yaml:"_magnum_images"`
}

type MagnumImage struct {
Name string `yaml:"name"`
URL string `yaml:"url"`
Distro string `yaml:"distro"`
}

func TestMain(m *testing.M) {
Expand All @@ -38,9 +45,9 @@ func TestHelmValues(t *testing.T) {
// for the actual template. Like:
// {{ tuple "heat_api" . | include "helm-toolkit.snippets.kubernetes_pod_priority_class" }}
vars.HelmValues.Pod.PriorityClass = map[string]string{
"bootstrap": "high-priority",
"db_sync": "high-priority",
"magnum_api": "high-priority",
"bootstrap": "high-priority",
"db_sync": "high-priority",
"magnum_api": "high-priority",
"magnum_conductor": "high-priority",
}
// (rlin): Before you add any new runtime class here.
Expand All @@ -49,9 +56,9 @@ func TestHelmValues(t *testing.T) {
// for the actual template. Like:
// {{ tuple "heat_api" . | include "helm-toolkit.snippets.kubernetes_pod_runtime_class" }}
vars.HelmValues.Pod.RuntimeClass = map[string]string{
"bootstrap": "kata-clh",
"db_sync": "kata-clh",
"magnum_api": "kata-clh",
"bootstrap": "kata-clh",
"db_sync": "kata-clh",
"magnum_api": "kata-clh",
"magnum_conductor": "kata-clh",
}
vals, err := openstack_helm.CoalescedHelmValues("../../charts/magnum", &vars.HelmValues)
Expand All @@ -61,3 +68,28 @@ func TestHelmValues(t *testing.T) {
testutils.TestAllPodsHaveRuntimeClass(t, vals)
testutils.TestAllPodsHavePriorityClass(t, vals)
}

func TestMagnumImages(t *testing.T) {
require.Equal(t, []MagnumImage{
{
Name: "ubuntu-2404-kube-v1.33.12",
URL: "https://github.com/vexxhost/capo-image-elements/releases/download/2026.05-7/ubuntu-24.04-v1.33.12.qcow2",
Distro: "ubuntu",
},
{
Name: "ubuntu-2404-kube-v1.34.8",
URL: "https://github.com/vexxhost/capo-image-elements/releases/download/2026.05-7/ubuntu-24.04-v1.34.8.qcow2",
Distro: "ubuntu",
},
{
Name: "ubuntu-2404-kube-v1.35.5",
URL: "https://github.com/vexxhost/capo-image-elements/releases/download/2026.05-7/ubuntu-24.04-v1.35.5.qcow2",
Distro: "ubuntu",
},
{
Name: "ubuntu-2404-kube-v1.36.1",
URL: "https://github.com/vexxhost/capo-image-elements/releases/download/2026.05-7/ubuntu-24.04-v1.36.1.qcow2",
Distro: "ubuntu",
},
}, vars.MagnumImages)
}
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