high_availability_config.yml Reference¶

File path: /opt/omnia/input/project_default/high_availability_config.yml

This file configures Kubernetes control plane high availability (HA) using a virtual IP address and load-balanced API servers.

HA configuration parameters¶

Parameter	Details
service_k8s_cluster_ha list / elements=dict / required	High Availability (HA) configuration for Kubernetes (K8s) service clusters. Service K8s clusters are supported only in HA mode.
cluster_name string / required	Name of the Kubernetes cluster for which you want to set up HA. Must match the service cluster name defined elsewhere.
enable_k8s_ha boolean / required	Set to true to enable HA for the Kubernetes cluster. Service Kubernetes cluster deployment is supported only in HA mode. Accepted values: true or false.
virtual_ip_address string / required	Virtual IP address of the admin network used as the Kubernetes API endpoint for the service cluster setup. Ensure that the virtual IP is not assigned to any node in the cluster. Example: 10.11.255.10.

Minimum 3 control plane nodes for a quorum-based HA deployment.
The ha_virtual_ip must be a free IP on the admin network subnet -- it must not be assigned to any physical server or DHCP range.
All control plane nodes must have L2 connectivity on the admin network for ARP-based virtual IP failover.

File: /opt/omnia/input/project_default/high_availability_config.yml

---
service_k8s_cluster_ha:
  - cluster_name: service_cluster
    enable_k8s_ha: true
    virtual_ip_address: "172.16.107.1"

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