Using Prometheus without ServiceMonitor
Enabling monitoring with the MATRIXX Helm chart global.monitoring.enabled
property installs a ServiceMonitor custom resource definition (CRD). When Prometheus is
installed with the Prometheus operator, it discovers this CRD and configures itself to collect metrics from MATRIXX endpoints. If you install Prometheus without the operator, you must manually
configure Prometheus to point to MATRIXX endpoints and configure the MATRIXX Helm chart to add annotations to the pods.