Patching CoreDNS configuration with Terraform on Kubernetes
Read OriginalThis technical guide details a method to update the CoreDNS configuration (Corefile) in a Kubernetes cluster provisioned with Terraform. It addresses the challenge of modifying resources not originally created by Terraform, using the kubernetes_config_map_v1_data resource to patch the existing ConfigMap for automation and integration with infrastructure-as-code workflows.
Patching CoreDNS configuration with Terraform on Kubernetes
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