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my-rook-config/Documentation/openshift-issues.md
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Travis Nielsen a988dd23ae ceph: document monitoring namespace for OpenShift 
OpenShift requires the monitoring to be bound to the openshift-monitoring
namespace instead of the rook default

Signed-off-by: Travis Nielsen <tnielsen@redhat.com>
2020-03-18 11:55:07 -06:00

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OpenShift Common Issues 10620 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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