10.3. 在 OpenShift 3.11 中启用 heketi 指标

# oc project app-storage
# oc annotate svc heketi-storage prometheus.io/scheme=http
# oc annotate svc heketi-storage prometheus.io/scrape=true

# cat heketi-app-sm.yml
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: heketi-app
  labels:
    k8s-app: heketi-app
  namespace: openshift-monitoring
spec:
  endpoints:
  - bearerTokenFile: /var/run/secrets/kubernetes.io/serviceaccount/token
    interval: 30s
    port: heketi
    scheme: http
    targetPort: 0
  namespaceSelector:
    matchNames:
    - app-storage
  selector:
    matchLabels:
      heketi: storage-service

# oc describe svc heketi-storage -n app-storage
Name:              heketi-storage
Namespace:         app-storage
Labels:            glusterfs=heketi-storage-service
                   heketi=storage-service
Annotations:       description=Exposes Heketi service
                   prometheus.io/scheme=http
                   prometheus.io/scrape=true
Selector:          glusterfs=heketi-storage-pod
Type:              ClusterIP
IP:                172.30.3.92
Port:              heketi  8080/TCP
TargetPort:        8080/TCP
Endpoints:         10.128.4.12:8080
Session Affinity:  None
Events:            <none>

# oc create -f heketi-app-sm.yml -n openshift-monitoring
servicemonitor.monitoring.coreos.com "heketi-app" created

# oc get servicemonitor -n openshift-monitoring
NAME                          AGE
alertmanager                  20d
cluster-monitoring-operator   20d
heketi-app                    1m
kube-apiserver                20d
kube-controllers              20d
kube-state-metrics            20d
kubelet                       20d
node-exporter                 20d
prometheus                    20d
prometheus-operator           20d

# oc adm policy add-cluster-role-to-user cluster-reader \
system:serviceaccount:openshift-monitoring:prometheus-k8s -n \
openshift-monitoring
cluster role "cluster-reader" added: "system:serviceaccount:openshift-monitoring:prometheus-k8s"