Rancher RKE CoreDNS

Metrics, Dashboards, Alerts and more for Rancher RKE CoreDNS Integration in Sysdig Monitor.
Rancher RKE CoreDNS

This integration is disabled by default. See Enable and Disable Integrations to enable it in your account.

This integration is out-of-the-box, so it doesn’t require any exporter.

This integration has 38 metrics.

Timeseries generated: 502 TS

List of Alerts

AlertDescriptionFormat
[RancherRKECoreDNS] Error HighHigh Request DurationPrometheus
[RancherRKECoreDNS] Latency HighLatency HighPrometheus

List of Dashboards

Rancher RKE CoreDNS

If you are using Prometheus Remote Write you will need to add the following metric relabel config for this label.


    - action: replace
    source_labels: [ __address__ ]
    target_label: _sysdig_integration_rke_coredns 
    replacement: true

The dashboard provides information on the RKE CoreDNS. Rancher RKE CoreDNS

List of Metrics

Metric name
coredns_cache_hits_total
coredns_cache_misses_total
coredns_dns_request_duration_seconds_bucket
coredns_dns_request_size_bytes_bucket
coredns_dns_requests_total
coredns_dns_response_size_bytes_bucket
coredns_dns_responses_total
coredns_forward_request_duration_seconds_bucket
coredns_panics_total
coredns_plugin_enabled
go_build_info
go_gc_duration_seconds
go_gc_duration_seconds_count
go_gc_duration_seconds_sum
go_goroutines
go_info
go_memstats_buck_hash_sys_bytes
go_memstats_gc_sys_bytes
go_memstats_heap_alloc_bytes
go_memstats_heap_idle_bytes
go_memstats_heap_inuse_bytes
go_memstats_heap_released_bytes
go_memstats_heap_sys_bytes
go_memstats_lookups_total
go_memstats_mallocs_total
go_memstats_mcache_inuse_bytes
go_memstats_mcache_sys_bytes
go_memstats_mspan_inuse_bytes
go_memstats_mspan_sys_bytes
go_memstats_next_gc_bytes
go_memstats_stack_inuse_bytes
go_memstats_stack_sys_bytes
go_memstats_sys_bytes
go_threads
process_cpu_seconds_total
process_max_fds
process_open_fds
process_resident_memory_bytes

Prerequisites

None.

Installation

Installing an exporter is not required for this integration.

Agent Configuration

The default agent job for this integration is as follows:

- job_name: rancher-rke-coredns-default
  kubernetes_sd_configs:
  - role: pod
  relabel_configs:
  - action: keep
    source_labels: [__meta_kubernetes_pod_host_ip]
    regex: __HOSTIPS__
  - source_labels: [__meta_kubernetes_pod_phase]
    action: keep
    regex: Running
  - action: keep
    regex: kube-system;coredns
    source_labels:
    - __meta_kubernetes_namespace
    - __meta_kubernetes_pod_container_name
  - source_labels:
    - __address__
    action: replace
    target_label: __address__
    regex: (.+?)(:(\d+))?
    replacement: $1:9153
  - action: replace
    source_labels: [__meta_kubernetes_pod_uid]
    target_label: sysdig_k8s_pod_uid
  - action: replace
    source_labels: [__meta_kubernetes_pod_container_name]
    target_label: sysdig_k8s_pod_container_name
  - action: replace
    source_labels: [ __address__ ]
    target_label: _sysdig_integration_rke_coredns 
    replacement: true