high_availability_config.yml¶

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

Parameter Reference¶

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	Captures the name of the service cluster on which HA will be set up. Default value: `service_cluster`
enable_k8s_ha boolean / required	Possible values: `true` Default value: `true` Indicates whether to enable HA for the Kubernetes (K8s) service node or not. Set to `true` to enable.
virtual_ip_address string / required	This is a mandatory and user-configurable parameter. Captures the virtual IP address for the K8s service node HA setup. Ensure that the `virtual_ip_address` does not belong to the `dynamic_range` or `static_range` mentioned in the network_spec.yml. Default value: `172.16.107.1`

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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