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my-rook-config/Documentation/ceph-openshift-issues.md
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Travis Nielsen c1d553c318 docs: move ceph common issues subtopics under ceph tools 
The ceph tools were split across different areas of the table of contents
that was confusing. Now the Ceph tools and troubleshooting guides are all
found under the Ceph tools.

Signed-off-by: Travis Nielsen <tnielsen@redhat.com>
2020-10-09 12:40:50 -06:00

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title, weight, indent
title weight indent
OpenShift Common Issues 11400 true

OpenShift Common Issues

Enable Monitoring in the Storage Dashboard

OpenShift Console uses OpenShift Prometheus for monitoring and populating data in Storage Dashboard. Additional configuration is required to monitor the Ceph Cluster from the storage dashboard.

  1. Change the monitoring namespace to openshift-monitoring

    Change the namespace of the RoleBinding rook-ceph-metrics from rook-ceph to openshift-monitoring for the prometheus-k8s ServiceAccount in rbac.yaml.

subjects:
- kind: ServiceAccount
  name: prometheus-k8s
  namespace: openshift-monitoring

  1. Enable Ceph Cluster monitoring

    Follow ceph-monitoring/prometheus-alerts.

  2. Set the required label on the namespace

    $ oc label namespace rook-ceph "openshift.io/cluster-monitoring=true"

Troubleshoot Monitoring Issues

Pre-req: Switch to rook-ceph namespace with oc project rook-ceph

  1. Ensure ceph-mgr pod is Running

    $ oc get pods -l app=rook-ceph-mgr

    NAME            READY   STATUS    RESTARTS   AGE
rook-ceph-mgr   1/1     Running   0          14h

  2. Ensure service monitor is present

    $ oc get servicemonitor rook-ceph-mgr

    NAME                          AGE
rook-ceph-mgr                 14h

  3. Ensure prometheus rules are present

    oc get prometheusrules -l prometheus=rook-prometheus

    NAME                    AGE
prometheus-ceph-rules   14h
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