update example

docs/EKS-cni-support.md

@@ -5,14 +5,60 @@ AWS EKS uses [CNI](https://github.com/aws/amazon-vpc-cni-k8s) networking plugin
 One fatal issue that can occur is that you run out of IP addresses in your eks cluster. (Generally happens due to error configs where pods keep scheduling).
 
 You can monitor the `awscni` using kube-promethus with : 
-```
-local kp = (import 'kube-prometheus/kube-prometheus.libsonnet') +
-    (import 'kube-prometheus/kube-prometheus-aws-eks-cni.libsonnet') +
-	{
-        _config+:: {
-		# ... config here
-		}
-    };
+[embedmd]:# (../examples/eks-cni-example.jsonnet)
+```jsonnet
+local kp = (import 'kube-prometheus/kube-prometheus-eks.libsonnet') + {
+  local service = kp.core.v1.service,
+  local servicePort = kp.core.v1.service.mixin.spec.portsType,
+  _config+:: {
+    namespace: 'monitoring',
+  },
+  prometheus+: {
+    AwsEksCniMetricService:
+        service.new('aws-node', { 'k8s-app' : 'aws-node' } , servicePort.newNamed('cni-metrics-port', 61678, 61678)) +
+        service.mixin.metadata.withNamespace('kube-system') +
+        service.mixin.metadata.withLabels({ 'k8s-app': 'aws-node' }) +
+        service.mixin.spec.withClusterIp('None'),
+    serviceMonitorAwsEksCNI:
+      {
+        apiVersion: 'monitoring.coreos.com/v1',
+        kind: 'ServiceMonitor',
+        metadata: {
+          name: 'awsekscni',
+          namespace: kp.namespace,
+          labels: {
+            'k8s-app': 'eks-cni',
+          },
+        },
+        spec: {
+          jobLabel: 'k8s-app',
+          selector: {
+            matchLabels: {
+              'k8s-app': 'aws-node',
+            },
+          },
+          namespaceSelector: {
+            matchNames: [
+              'kube-system',
+            ],
+          },
+          endpoints: [
+            {
+              port: 'cni-metrics-port',
+              interval: '30s',
+              path: '/metrics',
+            },
+          ],
+        },
+      },
+  },
+};
+
+{ ['00namespace-' + name]: kp.kubePrometheus[name] for name in std.objectFields(kp.kubePrometheus) } +
+{ ['0prometheus-operator-' + name]: kp.prometheusOperator[name] for name in std.objectFields(kp.prometheusOperator) } +
+{ ['alertmanager-' + name]: kp.alertmanager[name] for name in std.objectFields(kp.alertmanager) } +
+{ ['prometheus-' + name]: kp.prometheus[name] for name in std.objectFields(kp.prometheus) } +
+{ ['prometheus-adapter-' + name]: kp.prometheusAdapter[name] for name in std.objectFields(kp.prometheusAdapter) }
 ```
 
 After you have the required yaml file please run