chore: #176 consistent prometheus namespaceName and serviceName

Signed-off-by: Rafael Brito <rafa@stormforge.io>

kubernetes/exporter/opencost-exporter.yaml

@@ -150,7 +150,7 @@ spec:
               memory: "1G"
           env:
             - name: PROMETHEUS_SERVER_ENDPOINT
-              value: "http://my-prometheus-server.prometheus.svc" # The endpoint should have the form http://<service-name>.<namespace-name>.svc
+              value: "http://prometheus-server.prometheus-system.svc" # The endpoint should have the form http://<service-name>.<namespace-name>.svc
             - name: CLOUD_PROVIDER_API_KEY
               value: "AIzaSyD29bGxmHAVEOBYtgd8sYM2gM2ekfxQX4U" # The GCP Pricing API requires a key. This is supplied just for evaluation.
             - name: CLUSTER_ID
@@ -189,4 +189,4 @@ spec:
     - name: opencost
       port: 9003
       targetPort: 9003
----
+---

kubernetes/opencost.yaml

@@ -153,7 +153,7 @@ spec:
               memory: "1G"
           env:
             - name: PROMETHEUS_SERVER_ENDPOINT
-              value: "http://my-prometheus-server.prometheus.svc" # The endpoint should have the form http://<service-name>.<namespace-name>.svc
+              value: "http://prometheus-server.prometheus-system.svc" # The endpoint should have the form http://<service-name>.<namespace-name>.svc
             - name: CLOUD_PROVIDER_API_KEY
               value: "AIzaSyD29bGxmHAVEOBYtgd8sYM2gM2ekfxQX4U" # The GCP Pricing API requires a key. This is supplied just for evaluation.
             - name: CLUSTER_ID

ui/README.md

@@ -5,8 +5,8 @@
 See https://www.opencost.io/docs/install for the full instructions.
 
 ```
-helm install my-prometheus --repo https://prometheus-community.github.io/helm-charts prometheus \
-  --namespace prometheus --create-namespace \
+helm install prometheus --repo https://prometheus-community.github.io/helm-charts prometheus \
+  --namespace prometheus-system --create-namespace \
   --set pushgateway.enabled=false \
   --set alertmanager.enabled=false \
   -f https://raw.githubusercontent.com/opencost/opencost/develop/kubernetes/prometheus/extraScrapeConfigs.yaml