Add random activity launcher

Author: niloysh

bin/k8s-ue-random_activity.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+
+# function to print usage message
+function usage {
+  echo "Usage: $0 [namespace]"
+  echo "       namespace (optional): the Kubernetes namespace where the pods are running"
+  echo "This script will ping google.com from all pods containing 'ue' in their names."
+}
+
+# Function to prompt the user to select a namespace from a list
+select_namespace() {
+  echo "Select a namespace:"
+  select NAMESPACE in $(kubectl get namespaces -o jsonpath='{range .items[*]}{.metadata.name}{"\n"}{end}')
+  do
+    if [ -n "$NAMESPACE" ]
+    then
+      break
+    fi
+  done
+}
+
+# Display help message if no namespace is provided
+if [ "$#" -eq 0 ]
+then
+  select_namespace
+else
+  NAMESPACE=$1
+fi
+
+PODS=$(kubectl get pods -n $NAMESPACE | grep "ueransim-ue" | awk '{print $1}')
+
+if [ -z "$PODS" ]
+then
+  echo "No pods found containing 'ueransim-ue' in namespace: $NAMESPACE"
+  exit 1
+fi
+
+echo "Initiating random activity from UE pods..."
+
+# Loop through all matching pods and execute ping command, logging output
+for POD in $PODS
+do
+  CONTAINER=$(kubectl get pod $POD -n $NAMESPACE -o jsonpath='{.spec.containers[0].name}')
+  echo "Pinging from pod: $POD, container: $CONTAINER"
+  # Creating a unique log file for each pod to avoid conflicts
+  LOGFILE="ping-$(date +%s)-$POD.log"
+  kubectl exec $POD -n $NAMESPACE -c $CONTAINER -- sh -c "python3 random_activity.py > /tmp/$LOGFILE 2>&1 &"
+  echo "Random activity initiated in pod: $POD, container: $CONTAINER. Logs at /tmp/$LOGFILE"
+done