Kube Proxy Details Test

Kube-proxy is a network component in Kubernetes that manages the communication between services and pods. It maintains network rules on each node, allowing for load balancing and routing traffic to the appropriate pod endpoints. Kube-proxy supports different modes, such as iptables and IPVS, enabling efficient handling of service requests while ensuring high availability and scalability in the cluster.

Monitoring kube-proxy is essential for ensuring efficient traffic routing and load balancing in a Kubernetes cluster. It helps identify issues like misconfigured services, performance bottlenecks, and unexpected downtime. By tracking kube-proxy's metrics and logs, you can maintain application availability, optimize network performance, and quickly troubleshoot connectivity problems.

The Kube Proxy Details Test continuously monitors the proxy and reports number of client certificate expiration metrics. Analysis of these numbers over a series of measurement give administrators vital information about the current status of Kube proxy and can easily notice any dips in performance.

Target of the test : A Kubernetes Worker Node

Agent deploying the test : A remote agent

Outputs of the test : One set of results for the target Kubernetes Worker node being monitored

Configurable parameters for the test

Parameter	Description
Test Period	How often should the test be executed.
Host	The IP address of the host for which this test is to be configured.
Port	Specify the port at which the specified Host listens. By default, this is 6443.
Timeout	Specify the duration (in seconds) beyond which the test will timeout in the Timeout text box. The default value is 10 seconds.
Metric URL	Each of the Kubernetes system components expose monitoring metrics through /metrics endpoint of the HTTP server. For components that don't expose endpoint by default, refer official Kubernetes distribution documentation site. Specify the metric URL textbox.

Measurements made by the test

Measurement	Description	Measurement Unit	Interpretation
Number of client certificate expiration	Indicates the total number of client certificates which are about to expire.	Number	If too many client certificates are bout to expire that may be an alarming situation.