Benchmark Steve list API while resources are being changed

run_test.sh

#!/bin/bash

set -euo pipefail

# Global variables
KUBECONFIG="../tofu/main/k3d/config/upstream.yaml"
CONTEXT="k3d-st-upstream"
KUBERNETES_BASE_URL="https://localhost:6445"
STEVE_BASE_URL="https://localhost:8444"
USERNAME="admin"
PASSWORD="adminadminadmin"
CONFIGMAPS=(1 1000 3000 6000)
CHANGES_PER_SECOND=(0 100 200 400)

rm -f prepare_config_maps.log
rm -f change_config_maps.log
rm -f api_benchmark.log

echo "base_config_maps,config_map_changes_per_vu_per_second,p(95)"

# Iterate over configmaps
for cm in "${CONFIGMAPS[@]}"; do
  # Prepare a set of configmaps which will not change
  k6 run -e KUBECONFIG=$KUBECONFIG -e CONTEXT=$CONTEXT -e BASE_URL=$KUBERNETES_BASE_URL -e CONFIG_MAP_COUNT=$cm -e SECRET_COUNT=10 create_k8s_resources.js 2>&1 >> prepare_config_maps.log

  # Iterate over changes per second
  for cps in "${CHANGES_PER_SECOND[@]}"; do

    # Run change_config_maps.js in the background
    if [[ $cps -gt 0 ]]; then
      k6 run -e KUBECONFIG=$KUBECONFIG -e CONTEXT=$CONTEXT -e BASE_URL=$KUBERNETES_BASE_URL -e RATE=$cps -e VUS=100 change_config_maps.js 2>&1 >> change_config_maps.log &
      change_pid=$!
      sleep 10
    fi

    # Run load_test in the foreground
    k6_output=$(k6 run -e BASE_URL=https://localhost:8444 -e USERNAME=admin -e PASSWORD=adminadminadmin -e RESOURCE=configmaps -e PER_VU_ITERATIONS=500 -e PAGINATION_STYLE=steve -e FIRST_PAGE_ONLY=true api_benchmark.js 2>&1 | tee -a api_benchmark.log)

    # extract http_req_duration's p(95) value
    p95_value=$(echo "$k6_output" | grep "http_req_duration" | awk '{for(i=1;i<=NF;i++) if ($i ~ /^p\(95\)=/) print $i}' | cut -d'=' -f2)
    echo "$cm,$cps,$p95_value"

    # Kill the background change_configmaps process
    if [[ $cps -gt 0 ]]; then
      kill $change_pid 2>/dev/null || true
    fi
  done
done