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Version: 2.0.2

CoreDNS

coredns (Object) — Required​

Description​

The coredns field contains the main configuration for the cluster’s DNS service. It defines the parameters required for deploying and ensuring the proper operation of CoreDNS.

Example​

coredns:
  valuesOverride:
    corends:
      replicaCount: 2

valuesOverride (Object) — Required​

Description​

The valuesOverride field allows overriding the default values of the CoreDNS deployment, typically via Helm. It is used to customize resources, replica counts, and DNS service configuration (e.g., plugins, zones, caches). See all available options: https://github.com/coredns/helm/blob/master/charts/coredns/values.yaml

Example​

valuesOverride:
  corends:
    replicaCount: 2
    resources:
      limits:
        cpu: 500m
        memory: 256Mi
      requests:
        cpu: 100m
        memory: 128Mi

💡 Best Practices​

  • Always define valuesOverride to adjust resources according to the cluster size.
  • Set replicaCount to at least 2 to ensure high availability of the DNS service.
  • Monitor memory usage: CoreDNS may consume more depending on the number of services and DNS queries.
  • Adapt plugin configuration (e.g., forward, cache, rewrite) according to your environment’s needs.
  • Avoid manually modifying the CoreDNS ConfigMap: prefer a deployment managed through valuesOverride.