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51 lines
1.8 KiB
51 lines
1.8 KiB
3 months ago
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# CNI monitoring special configuration updates for EKS
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AWS EKS uses [CNI](https://github.com/aws/amazon-vpc-cni-k8s) networking plugin for pod networking in Kubernetes using Elastic Network Interfaces on AWS
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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).
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You can monitor the `awscni` using kube-promethus with :
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[embedmd]:# (../examples/eks-cni-example.jsonnet)
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```jsonnet
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local kp = (import 'kube-prometheus/main.libsonnet') + {
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values+:: {
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common+: {
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namespace: 'monitoring',
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},
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kubePrometheus+: {
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platform: 'eks',
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},
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},
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kubernetesControlPlane+: {
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prometheusRuleEksCNI+: {
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spec+: {
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groups+: [
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{
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name: 'example-group',
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rules: [
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{
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record: 'aws_eks_available_ip',
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expr: 'sum by(instance) (awscni_total_ip_addresses) - sum by(instance) (awscni_assigned_ip_addresses) < 10',
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},
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],
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},
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],
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},
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},
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},
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};
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{ ['00namespace-' + name]: kp.kubePrometheus[name] for name in std.objectFields(kp.kubePrometheus) } +
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{ ['0prometheus-operator-' + name]: kp.prometheusOperator[name] for name in std.objectFields(kp.prometheusOperator) } +
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{ ['node-exporter-' + name]: kp.nodeExporter[name] for name in std.objectFields(kp.nodeExporter) } +
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{ ['kube-state-metrics-' + name]: kp.kubeStateMetrics[name] for name in std.objectFields(kp.kubeStateMetrics) } +
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{ ['prometheus-' + name]: kp.prometheus[name] for name in std.objectFields(kp.prometheus) } +
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{ ['prometheus-adapter-' + name]: kp.prometheusAdapter[name] for name in std.objectFields(kp.prometheusAdapter) }
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```
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After you have the required yaml file please run
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```
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kubectl apply -f manifests/prometheus-serviceMonitorAwsEksCNI.yaml
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```
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