Bug 1688969
| Summary: | Integrate coredns metrics with the monitoring component | ||
|---|---|---|---|
| Product: | OpenShift Container Platform | Reporter: | Ravi Sankar <rpenta> |
| Component: | Networking | Assignee: | Dan Mace <dmace> |
| Networking sub component: | router | QA Contact: | Hongan Li <hongli> |
| Status: | CLOSED ERRATA | Docs Contact: | |
| Severity: | medium | ||
| Priority: | medium | CC: | aos-bugs, dmace |
| Version: | 4.1.0 | ||
| Target Milestone: | --- | ||
| Target Release: | 4.1.0 | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Enhancement | |
| Doc Text: |
Feature: Report coredns metrics to prometheus monitoring component.
Reason: Gives better visibility into the dns queries.
Result: Helps during troubleshooting and making dns optimizations.
|
Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2019-06-04 10:45:52 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
|
Description
Ravi Sankar
2019-03-14 19:49:58 UTC
verified with 4.1.0-0.nightly-2019-04-23-223857 and issue has been fixed.
$ oc -n openshift-dns get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
dns-default ClusterIP 172.30.0.10 <none> 53/UDP,53/TCP,9153/TCP 50m
$ oc get servicemonitor/dns-default -n openshift-dns -o yaml
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
creationTimestamp: 2019-04-24T02:07:52Z
generation: 1
name: dns-default
namespace: openshift-dns
ownerReferences:
- apiVersion: apps/v1
controller: true
kind: DaemonSet
name: dns-default
uid: 67022044-6634-11e9-b683-0670efaa028e
resourceVersion: "14873"
selfLink: /apis/monitoring.coreos.com/v1/namespaces/openshift-dns/servicemonitors/dns-default
uid: c415c9fc-6635-11e9-960e-0a02360899c2
spec:
endpoints:
- bearerTokenFile: /var/run/secrets/kubernetes.io/serviceaccount/token
interval: 30s
path: /metrics
port: metrics
scheme: http
tlsConfig:
caFile: /etc/prometheus/configmaps/serving-certs-ca-bundle/service-ca.crt
serverName: dns-default.openshift-dns.svc
namespaceSelector:
matchNames:
- openshift-dns
selector: {}
And can see DNS status on Prometheus Web UI:
http://10.128.0.6:9153/metrics
up endpoint="metrics" instance="10.128.0.6:9153" job="dns-default" namespace="openshift-dns" pod="dns-default-wljh9" service="dns-default" 10.353s ago 6.618ms
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2019:0758 |