Support Kubernetes 1.31.x

[0x00ace]

This PR adds support for Kubernetes 1.31.x

I have successfully booted a new Kubernetes cluster 1.31.1
Also, I have tested Kubernetes cluster upgrade from 1.30.2 -> 1.31.1

+--------------------------------------+-----------+---------+------------+--------------+-----------------+---------------+
| uuid                                 | name      | keypair | node_count | master_count | status          | health_status |
+--------------------------------------+-----------+---------+------------+--------------+-----------------+---------------+
| e475fe8d-394a-4eb3-af0f-68634f4927ab | cluster_1 | ace     |          2 |            3 | UPDATE_COMPLETE | HEALTHY       |
+--------------------------------------+-----------+---------+------------+--------------+-----------------+---------------+

Configuration:

• RockyLinux 9
• Cilium
• OVN

CAPI versions:

NAME                       NAMESPACE                           TYPE                     CURRENT VERSION   NEXT VERSION
bootstrap-kubeadm          capi-kubeadm-bootstrap-system       BootstrapProvider        v1.8.4            Already up to date
control-plane-kubeadm      capi-kubeadm-control-plane-system   ControlPlaneProvider     v1.8.4            Already up to date
cluster-api                capi-system                         CoreProvider             v1.8.4            Already up to date
infrastructure-openstack   capo-system                         InfrastructureProvider   v0.10.5           Already up to date

Template:

os coe cluster template show k8s-v1.31.1-cilium-ovn
+-----------------------+-------------------------------------------------------------------------------------------------------------------------------------+
| Field                 | Value                                                                                                                               |
+-----------------------+-------------------------------------------------------------------------------------------------------------------------------------+
| insecure_registry     | -                                                                                                                                   |
| labels                | {'kube_tag': 'v1.31.1', 'container_infra_prefix': 'gitea.geekhome.org/public', 'fixed_subnet_cidr': '192.168.0.0/24',               |
|                       | 'octavia_provider': 'ovn'}                                                                                                          |
| updated_at            | -                                                                                                                                   |
| floating_ip_enabled   | False                                                                                                                               |
| fixed_subnet          | -                                                                                                                                   |
| master_flavor_id      | 2cpu4ram20hdd                                                                                                                       |
| uuid                  | c0dce5e1-c2d7-439f-a8a2-dc35d0eb0026                                                                                                |
| no_proxy              | -                                                                                                                                   |
| https_proxy           | -                                                                                                                                   |
| tls_disabled          | False                                                                                                                               |
| keypair_id            | -                                                                                                                                   |
| public                | False                                                                                                                               |
| http_proxy            | -                                                                                                                                   |
| docker_volume_size    | -                                                                                                                                   |
| server_type           | vm                                                                                                                                  |
| external_network_id   | vlan77                                                                                                                              |
| cluster_distro        | rockylinux                                                                                                                          |
| image_id              | rockylinux-9-kube-v1.31.1                                                                                                           |
| volume_driver         | -                                                                                                                                   |
| registry_enabled      | False                                                                                                                               |
| docker_storage_driver | overlay2                                                                                                                            |
| apiserver_port        | -                                                                                                                                   |
| name                  | k8s-v1.31.1-cilium-ovn                                                                                                              |
| created_at            | 2024-10-10T18:51:54+00:00                                                                                                           |
| network_driver        | cilium                                                                                                                              |
| fixed_network         | -                                                                                                                                   |
| coe                   | kubernetes                                                                                                                          |
| flavor_id             | 2cpu2ram20hdd                                                                                                                       |
| master_lb_enabled     | True                                                                                                                                |
| dns_nameserver        | 8.8.8.8,8.8.4.4                                                                                                                     |
| project_id            | aaed759d65f54702a6c319f89a7b2ce7                                                                                                    |
| hidden                | False                                                                                                                               |
| tags                  | -                                                                                                                                   |
+-----------------------+-------------------------------------------------------------------------------------------------------------------------------------+

Cluster nodes:

kubectl get nodes 
NAME                                          STATUS   ROLES                  AGE     VERSION
kube-n3t15-default-worker-j5xbh-n49x4-hwf4r   Ready    worker                 66m     v1.31.1
kube-n3t15-default-worker-j5xbh-n49x4-szrvq   Ready    worker                 2m49s   v1.31.1
kube-n3t15-jn27j-62vxv                        Ready    control-plane,master   84m     v1.31.1
kube-n3t15-jn27j-7jgpx                        Ready    control-plane,master   74m     v1.31.1
kube-n3t15-jn27j-gfbwv                        Ready    control-plane,master   65m     v1.31.1

Cluster pods status:

kubectl get pods -A 
NAMESPACE     NAME                                             READY   STATUS    RESTARTS      AGE
kube-system   cilium-49m7l                                     1/1     Running   0             66m
kube-system   cilium-6gs6j                                     1/1     Running   0             74m
kube-system   cilium-dvklr                                     1/1     Running   0             85m
kube-system   cilium-k8nd7                                     1/1     Running   0             3m9s
kube-system   cilium-operator-5bc9f6587c-5jptx                 1/1     Running   0             73m
kube-system   cilium-operator-5bc9f6587c-fcqjq                 1/1     Running   1 (62m ago)   82m
kube-system   cilium-wqcx4                                     1/1     Running   0             65m
kube-system   coredns-6644bf886c-4lmsn                         1/1     Running   0             65m
kube-system   coredns-6644bf886c-8mfhl                         1/1     Running   0             63m
kube-system   csi-cinder-controllerplugin-997ddd699-8bxwt      6/6     Running   1 (62m ago)   65m
kube-system   csi-cinder-nodeplugin-h794g                      3/3     Running   0             85m
kube-system   csi-cinder-nodeplugin-ltzfd                      3/3     Running   0             66m
kube-system   csi-cinder-nodeplugin-v94nz                      3/3     Running   0             65m
kube-system   csi-cinder-nodeplugin-vqqww                      3/3     Running   0             74m
kube-system   csi-cinder-nodeplugin-zqk5s                      3/3     Running   0             3m9s
kube-system   etcd-kube-n3t15-jn27j-62vxv                      1/1     Running   0             83m
kube-system   etcd-kube-n3t15-jn27j-7jgpx                      1/1     Running   0             74m
kube-system   etcd-kube-n3t15-jn27j-gfbwv                      1/1     Running   0             64m
kube-system   k8s-keystone-auth-7x4wm                          1/1     Running   1 (64m ago)   65m
kube-system   k8s-keystone-auth-r2zlm                          1/1     Running   0             84m
kube-system   k8s-keystone-auth-rrwkg                          1/1     Running   0             74m
kube-system   kube-apiserver-kube-n3t15-jn27j-62vxv            1/1     Running   0             83m
kube-system   kube-apiserver-kube-n3t15-jn27j-7jgpx            1/1     Running   0             73m
kube-system   kube-apiserver-kube-n3t15-jn27j-gfbwv            1/1     Running   0             64m
kube-system   kube-controller-manager-kube-n3t15-jn27j-62vxv   1/1     Running   0             83m
kube-system   kube-controller-manager-kube-n3t15-jn27j-7jgpx   1/1     Running   0             74m
kube-system   kube-controller-manager-kube-n3t15-jn27j-gfbwv   1/1     Running   0             64m
kube-system   kube-proxy-bl2xl                                 1/1     Running   0             61m
kube-system   kube-proxy-df8g6                                 1/1     Running   0             62m
kube-system   kube-proxy-nstf9                                 1/1     Running   0             3m9s
kube-system   kube-proxy-w5rsk                                 1/1     Running   0             61m
kube-system   kube-proxy-wdx8x                                 1/1     Running   0             62m
kube-system   kube-scheduler-kube-n3t15-jn27j-62vxv            1/1     Running   0             82m
kube-system   kube-scheduler-kube-n3t15-jn27j-7jgpx            1/1     Running   0             73m
kube-system   kube-scheduler-kube-n3t15-jn27j-gfbwv            1/1     Running   0             64m
kube-system   openstack-cloud-controller-manager-7twrp         1/1     Running   0             72m
kube-system   openstack-cloud-controller-manager-9lltv         1/1     Running   0             82m
kube-system   openstack-cloud-controller-manager-r97tb         1/1     Running   0             63m

Also I have to fix directory creation for keystone-kustomization - with -p flag there will be no error, if dir already exists

[okozachenko1203]

@0x00ace thanks for your contribution
we deprecated the in-tree image build utility and maintain a dedicated one https://github.com/vexxhost/capo-image-elements
Could you make a commit there also?

[okozachenko1203]

thanks @yaguangtang
@0x00ace just for your info, vexxhost/capo-image-elements#8

[0x00ace]

@okozachenko1203 I will try, but the last time I used this capi image elements repo for Rocky Linux 9 image building my cluster was pretty unstable. So right now I'm using the official image builder.