node-exporter: use endpoints section and lookups to set port

This PS moves node-exporter to use the endpoints section and
lookups to set the ports it serves on.

Change-Id: Id6d71b12e531375e792384ac4410bce74170d033

prometheus-node-exporter/templates/daemonset.yaml

@@ -65,8 +65,8 @@ spec:
             - --collector.mountstats
           ports:
             - name: metrics
-              containerPort: {{ .Values.network.node_exporter.port }}
-              hostPort: {{ .Values.network.node_exporter.port }}
+              containerPort: {{ tuple "node_metrics" "internal" "metrics" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
+              hostPort: {{ tuple "node_metrics" "internal" "metrics" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
 {{ tuple $envAll $envAll.Values.pod.resources.node_exporter | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
           volumeMounts:
             - name: proc

prometheus-node-exporter/templates/service.yaml

@@ -33,8 +33,8 @@ spec:
   clusterIP: None
   ports:
   - name: metrics
-    port: {{ .Values.network.node_exporter.port }}
-    targetPort: {{ .Values.network.node_exporter.port }}
+    port: {{ tuple "node_metrics" "internal" "metrics" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
+    targetPort: {{ tuple "node_metrics" "internal" "metrics" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
   selector:
 {{ tuple $envAll "node_exporter" "metrics" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 4 }}
 {{- end }}

prometheus-node-exporter/values.yaml

@@ -103,10 +103,6 @@ monitoring:
     node_exporter:
       scrape: true
 
-network:
-  node_exporter:
-    port: 9100
-
 endpoints:
   cluster_domain_suffix: cluster.local
   local_image_registry:
@@ -134,8 +130,6 @@ endpoints:
     port:
       metrics:
         default: 9100
-      prometheus_port:
-        default: 9100
 
 manifests:
   configmap_bin: true