Changing Kubernetes service parameters

For Kubernetes clusters, you can change the following parameters:

• Size and storage policy of the system volume on master nodes
• Flavors for master and worker nodes
• Flavors for Kubernetes load balancers
• DNS nameserver and discovery URL

You can modify the default Kubernetes parameters either for all Kubernetes versions or for each version separately.

To view the current default Kubernetes parameters

Use the vinfra service compute k8saas defaults show command:

# vinfra service compute k8saas defaults show
+----------+-------------------------------------------------------------+
| Field    | Value                                                       |
+----------+-------------------------------------------------------------+
| default  | discovery_url: null                                         |
|          | dns_nameserver: null                                        |
|          | flavor: null                                                |
|          | labels:                                                     |
|          |   auto_scaling_enabled: true                                |
|          |   availability_zone: nova                                   |
|          |   boot_volume_size: 20                                      |
|          |   boot_volume_type: default                                 |
|          |   cgroup_driver: systemd                                    |
|          |   cinder_csi_enabled: 'true'                                |
|          |   cinder_csi_plugin_tag: v1.22.2                            |
|          |   cloud_provider_enabled: 'true'                            |
|          |   cloud_provider_tag: v1.22.0                               |
|          |   cluster_upgrade_method: legacy                            |
|          |   csi_attacher_tag: v3.1.0                                  |
|          |   csi_snapshotter_tag: v3.0.3                               |
|          |   docker_volume_type: default                               |
|          |   etcd_lb_disabled: 'true'                                  |
|          |   etcd_tag: v3.4.28                                         |
|          |   flannel_tag: v0.11.0-amd64                                |
|          |   heat_container_agent_tag: 5.3.11                          |
|          |   octavia_api_lb_flavor: ACTIVE_STANDBY                     |
|          |   octavia_default_flavor: ACTIVE_STANDBY                    |
|          |   use_podman: 'true'                                        |
|          | master_flavor: null                                         |
| v1.23.5  | labels:                                                     |
|          |   autoscaler_tag: 1.23.1                                    |
|          |   cloud_provider_tag: v1.23.0                               |
|          |   hyperkube_image: docker.io/virtuozzo/hci-binary-hyperkube |
|          |   kube_tag: v1.23.5                                         |
|          |   kube_version: v1.23.5                                     |
| v1.24.3  | labels:                                                     |
|          |   autoscaler_tag: 1.24.3                                    |
|          |   cloud_provider_tag: v1.24.0                               |
|          |   cluster_upgrade_method: replace                           |
|          |   container_runtime: containerd                             |
|          |   hyperkube_image: docker.io/virtuozzo/hci-binary-hyperkube |
|          |   kube_tag: v1.24.3                                         |
|          |   kube_version: v1.24.3                                     |
| v1.25.7  | labels:                                                     |
|          |   autoscaler_tag: 1.25.3                                    |
|          |   cloud_provider_tag: v1.25.5                               |
|          |   cluster_upgrade_method: replace                           |
|          |   container_runtime: containerd                             |
|          |   hyperkube_image: docker.io/virtuozzo/hci-binary-hyperkube |
|          |   kube_tag: v1.25.7                                         |
|          |   kube_version: v1.25.7                                     |
| v1.26.11 | labels:                                                     |
|          |   autoscaler_tag: 1.26.6                                    |
|          |   cloud_provider_tag: v1.26.4                               |
|          |   cluster_upgrade_method: replace                           |
|          |   container_runtime: containerd                             |
|          |   hyperkube_image: docker.io/virtuozzo/hci-binary-hyperkube |
|          |   kube_tag: v1.26.11                                        |
|          |   kube_version: v1.26.11                                    |
| v1.27.8  | labels:                                                     |
|          |   autoscaler_tag: 1.27.5                                    |
|          |   cloud_provider_tag: v1.27.3                               |
|          |   cluster_upgrade_method: replace                           |
|          |   container_runtime: containerd                             |
|          |   hyperkube_image: docker.io/virtuozzo/hci-binary-hyperkube |
|          |   kube_tag: v1.27.8                                         |
|          |   kube_version: v1.27.8                                     |
| v1.28.4  | labels:                                                     |
|          |   autoscaler_tag: 1.28.2                                    |
|          |   cloud_provider_tag: v1.28.1                               |
|          |   cluster_upgrade_method: replace                           |
|          |   container_runtime: containerd                             |
|          |   hyperkube_image: docker.io/virtuozzo/hci-binary-hyperkube |
|          |   kube_tag: v1.28.4                                         |
|          |   kube_version: v1.28.4                                     |
+----------+-------------------------------------------------------------+