Chapter 9. Monitoring Data Grid with Prometheus

Procedure

1. Add an authentication secret to your Prometheus namespace.

   This secret allows Prometheus to authenticate with your Data Grid cluster. You can find Data Grid credentials in the authentication secret in your Data Grid Operator namespace.

   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 application user.

   2

   specifies a corresponding password.

2. Create a service monitor instance 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:
       - basicAuth:
           username:
             key: username
             name: basic-auth 

   3

   
           password:
             key: password
             name: basic-auth 

   4

   
         interval: 30s
         scheme: https 

   5

   
         tlsConfig:
           insecureSkipVerify: true
           serverName: certificate-CN 

   6

   
     namespaceSelector:
       matchNames:
         - infinispan 

   7

   
     selector:
       matchLabels:
         app: infinispan-service
         clusterName: cluster-name 

   8

   1

   names the service monitor.

   2

   specifies your Prometheus namespace.

   3

   specifies the name of the authentication secret that has Data Grid credentials.

   4

   specifies the name of the authentication secret that has Data Grid credentials.

   5

   specifies that Data Grid endpoints use encryption. If you do not use TLS, remove spec.endpoints.scheme.

   6

   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. If you do not use TLS, remove spec.endpoints.tlsConfig.

   7

   specifies the Data Grid Operator namespace.

   8

   specifies the name of the Data Grid cluster.