Chapter 11. Monitoring Data Grid with Prometheus

Procedure

1. Create an authentication secret that contains Data Grid credentials so that Prometheus can authenticate with your Data Grid cluster.

   apiVersion: v1
   stringData:
     username: developer 1
     password: dIRs5cAAsHIeeRIL 2
   kind: Secret
   metadata:
     name: basic-auth
   type: Opaque

   1

   Specifies an application user. developer is the default.

   2

   Specifies the corresponding password.

2. Add the authentication secret to your Prometheus namespace.

   $ oc apply -f basic-auth.yaml

3. Create a service monitor that configures Prometheus to monitor your Data Grid cluster.

   apiVersion: monitoring.coreos.com/v1
   kind: ServiceMonitor
   metadata:
     labels:
       k8s-app: prometheus
     name: datagrid-monitoring 1
     namespace: infinispan-monitoring 2
   spec:
     endpoints:
       - targetPort: 11222 3
         path: /metrics 4
         honorLabels: true
         basicAuth:
           username:
             key: username
             name: basic-auth 5
           password:
             key: password
             name: basic-auth
         interval: 30s
         scrapeTimeout: 10s
         scheme: https 6
         tlsConfig:
           insecureSkipVerify: true
           serverName: example-infinispan 7
     namespaceSelector:
       matchNames:
         - infinispan 8
     selector:
       matchLabels:
         app: infinispan-service
         clusterName: example-infinispan 9

   1

   Names the service monitor instances.

   2

   Specifies the namespace of your Prometheus stack.

   3

   Sets the port of 11222 for the Data Grid metrics endpoint.

   4

   Sets the path where Data Grid exposes metrics.

   5

   Specifies the authentication secret with Data Grid credentials.

   6

   Specifies that Data Grid clusters use endpoint encryption.

   7

   Specifies the Common Name (CN) of the TLS certificate for Data Grid encryption. If you use an OpenShift service certificate, the CN matches the metadata.name resource for your Data Grid cluster.

   8

   Specifies the namespace of your Data Grid cluster.

   9

   Specifies the name of your Data Grid cluster.

4. Add the service monitor instance to your Prometheus namespace.

   $ oc apply -f service-monitor.yaml