Kubernetes DNS schedules a DNS Pod and service on the cluster, and configures the kubelets to tell individual containers to use the DNS Service IP to resolve DNS names.
Validate
Go to Resources under the Infrastructure tab to check if your resources are onboarded and the metrics are collected.
Supported metrics
| OpsRamp Metric | Metric Display Name | Unit |
|---|---|---|
| kube_kubedns_cachemiss_count Number of DNS cache misses (from the start of the process). | Cachemiss Count | |
| kube_kubedns_error_count Number of DNS requests resulting in an error. | Error Count | |
| kube_kubedns_request_count Total number of DNS requests made. | Request Count | |
| kube_kubedns_request_duration_seconds_count Number of requests on which the kubedns.request_duration.seconds.sum metric is evaluated. | Request Duration Seconds Count | |
| kube_kubedns_request_duration_seconds_sum Time taken by each request to resolve. | Request Duration Seconds Sum | seconds |
| kube_kubedns_response_size_bytes_count Number of responses on which kubedns.response_size.bytes.sum metric is evaluated. | Response Size Bytes Count | bytes |
| kube_kubedns_response_size_bytes_sum Size of the returns response. | Response Size Bytes Sum | bytes |