I'm installing Prometheus on GKE with Helm using the standard chart as in
helm install -n prom stable/prometheus --namespace hal
but I need to be able to pull up the Prometheus UI in the browser. I know that I can do it with port forwarding, as in
kubectl port-forward -n hal svc/prom-prometheus-server 8000:80
but I'm being told "No, just expose it." Of course, there's already a service so just doing
kubectl expose deploy -n hal prom-prometheus-server
isn't going to work. I assume there's some value I can set in values.yaml that will give me an external IP, but I can't figure out what it is.
Or am I misunderstanding when they tell me "Just expose it"?
Agree that it's a bad idea to expose prom publicly, but if its a demo it's ok.
Run:
kubectl expose deploy -n hal prom-prometheus-server --type=LoadBalancerKubernetes will create a GCP Load Balancer with an external IP.
Hope it helps!
It is generally a very bad idea to expose Prometheus itself as it has no authentication mechanism, but you can absolutely set up a LoadBalancer service or Ingress aimed at the HTTP port if you want.
More commonly (and supported by the chart) you'll use Grafana for the public view and only connect to Prom itself via port-forward when needed for debugging.