Added iperf2 script with yml build

iperf2-k8s.sh

@@ -0,0 +1,51 @@
+#!/usr/bin/env bash
+
+set -eu
+
+cd $(dirname $0)
+
+## <setup>
+
+kubectl create -f iperf2.yaml
+
+until $(kubectl get pods -l app=iperf2-server -o jsonpath='{.items[0].status.containerStatuses[0].ready}'); do
+    echo "Waiting for iperf server to start..."
+    sleep 5
+done
+
+echo "Server is running"
+echo
+
+CLIENTS=$(kubectl get pods -l app=iperf-client -o name | cut -d'/' -f2)
+
+for POD in ${CLIENTS}; do
+    until $(kubectl get pod "${POD}" -o jsonpath='{.status.containerStatuses[0].ready}'); do
+        echo "Waiting for ${POD} to start..."
+        sleep 5
+    done
+done
+
+echo "All clients are running"
+echo
+
+kubectl get pod -o=custom-columns=NAME:.metadata.name,NODE:.spec.nodeName,IP-NODE:.status.hostIP,IP-POD:status.podIP
+
+echo
+
+## </setup>
+## <run>
+
+CLIENTS=$(kubectl get pods -l app=iperf-client -o name | cut -d'/' -f2)
+
+for POD in ${CLIENTS}; do
+    HOST=$(kubectl get pod "${POD}" -o jsonpath='{.status.hostIP}')
+    kubectl exec -it "${POD}" -- iperf -c iperf2-server -T "Client on ${HOST}" "$@"
+    echo
+done
+
+## </run>
+## <clean>
+
+kubectl delete --cascade -f iperf2.yaml
+
+## </clean>

iperf2.yaml

@@ -0,0 +1,89 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: iperf2-server-deployment
+  labels:
+    app: iperf2-server
+spec:
+  replicas: 10
+  selector:
+    matchLabels:
+      app: iperf2-server
+  template:
+    metadata:
+      labels:
+        app: iperf2-server
+    spec:
+      affinity:
+        nodeAffinity:
+          preferredDuringSchedulingIgnoredDuringExecution:
+          - weight: 1
+            preference:
+              matchExpressions:
+              - key: kubernetes.io/role
+                operator: In
+                values:
+                - master
+      tolerations:
+        - key: node-role.kubernetes.io/master
+          operator: Exists
+          effect: NoSchedule
+      containers:
+      - name: iperf2-server
+        image: mlabbe/iperf
+        args: ['-s']
+        ports:
+        - containerPort: 5001
+          protocol: TCP
+          name: server-tcp
+        - containerPort: 5001
+          protocol: UDP
+          name: server-udp
+      terminationGracePeriodSeconds: 0
+
+---
+
+apiVersion: v1
+kind: Service
+metadata:
+  name: iperf2-server
+spec:
+  selector:
+    app: iperf2-server
+  ports:
+  - protocol: TCP
+    port: 5001
+    name: crappy-tcp
+    targetPort: server-tcp
+  - protocol: UDP
+    port: 5001
+    name: crappy-udp
+    targetPort: server-udp
+    
+---
+    
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: iperf2-clients
+  labels:
+    app: iperf2-client
+spec:
+  selector:
+    matchLabels:
+      app: iperf2-client
+  template:
+    metadata:
+      labels:
+        app: iperf2-client
+    spec:
+      tolerations:
+        - key: node-role.kubernetes.io/master
+          operator: Exists
+          effect: NoSchedule
+      containers:
+      - name: iperf2-client
+        image: mlabbe/iperf
+        command: ['/bin/sh', '-c', 'sleep infinity']
+        # To benchmark manually: kubectl exec iperf2-clients-jlfxq -- /bin/sh -c 'iperf -c iperf2-server'
+      terminationGracePeriodSeconds: 0

iperf3.yaml

@@ -5,7 +5,7 @@ metadata:
   labels:
     app: iperf3-server
 spec:
-  replicas: 10
+  replicas: 1
   selector:
     matchLabels:
       app: iperf3-server