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Simple wrapper around iperf3 to measure network bandwidth from all nodes of a Kubernetes cluster
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Changed kind to ReplicaSet to clients in iperf2.yml 		4 years ago
LICENSE Repackaged script 4 years ago
README.md Repackaged script 4 years ago
iperf2-k8s-flood.sh Uncommented the keepalive loop 4 years ago
iperf2-k8s.sh Fixed script iperf2 flood 4 years ago
iperf2.yaml Changed kind to ReplicaSet to clients in iperf2.yml 4 years ago
iperf3-k8s.sh Repackaged script 4 years ago
iperf3.yaml Added iperf2 script with yml build 4 years ago
network-policy.yaml Repackaged script 4 years ago

README.md

iperf3-k8s

Simple wrapper around iperf3 to measure network bandwidth from all nodes of a Kubernetes cluster.

How to use

Make sure you are using the correct cluster context before running this script: kubectl config current-context

./iperf3.sh

Any options supported by iperf3 can be added, e.g.:

./iperf3.sh -t 2

NetworkPolicies

If you need NetworkPolicies you can install it:

kubectl apply -f network-policy.yaml

And cleanup afterwards:

kubectl delete -f network-policy.yaml

How it works

The script will run an iperf3 client inside a pod on every cluster node including the Kubernetes master. Each iperf3 client will then sequentially run the same benchmark against the iperf3 server running on the Kubernetes master.

All required Kubernetes resources will be created and removed after the benchmark finished successfully.

This has been tested with v1.9.6, v1.10.3 and v1.11.6 of Kubernetes.

The latest version of this Docker image is used to run iperf3: https://hub.docker.com/r/networkstatic/iperf3/

Details on how to use iperf3 can be found here: https://github.com/esnet/iperf

Thanks

Thanks to Pharb for the code. This is a repackaged version of his project adapted for my use cases.