I deployed a Prometheus cluster as below with 2 Prometheus PODs.
prometheus-deployment-1 (master node)
The service is also deployed as below:
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
alertmanager ClusterIP 1.2.3.4 <none> 80/TCP
node-exporter ClusterIP 1.2.3.5 <none> 9100/TCP
prometheus-service NodePort 1.2.3.6 <none> 9090:30000/TCP