metrics: Add sysbench performance test

This PR adds the sysbench performance test for kata CI.

Fixes #7485

Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>

tests/metrics/density/k8s-sysbench.sh

@@ -0,0 +1,81 @@
+#!/bin/bash
+#
+# Copyright (c) 2022-2023 Intel Corporation
+#
+# SPDX-License-Identifier: Apache-2.0
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+SCRIPT_PATH=$(dirname "$(readlink -f "$0")")
+
+source "${SCRIPT_PATH}/../../.ci/lib.sh"
+source "${SCRIPT_PATH}/../lib/common.bash"
+sysbench_file=$(mktemp sysbenchresults.XXXXXXXXXX)
+TEST_NAME="${TEST_NAME:-sysbench}"
+CI_JOB="${CI_JOB:-}"
+IMAGE="docker.io/library/local-sysbench:latest"
+DOCKERFILE="${SCRIPT_PATH}/sysbench-dockerfile/Dockerfile"
+
+function remove_tmp_file() {
+	rm -rf "${sysbench_file}"
+}
+
+trap remove_tmp_file EXIT
+
+function sysbench_memory() {
+	kubectl exec -i "$pod_name" -- sh -c "sysbench memory --threads=2 run" > "${sysbench_file}"
+	metrics_json_init
+	local memory_latency_sum=$(cat "$sysbench_file" | grep sum | cut -f2 -d':' | sed 's/[[:blank:]]//g')
+	metrics_json_start_array
+	local json="$(cat << EOF
+	{
+		"memory-latency-sum": {
+			"Result" : $memory_latency_sum,
+			"Units" : "ms"
+		}
+	}
+EOF
+)"
+	metrics_json_add_array_element "$json"
+	metrics_json_end_array "Results"
+	metrics_json_save
+}
+
+function sysbench_start_deployment() {
+	cmds=("bc" "jq")
+	check_cmds "${cmds[@]}"
+
+	# Check no processes are left behind
+	check_processes
+
+	if [ -z "${CI_JOB}" ]; then
+		# Start kubernetes
+		start_kubernetes
+	fi
+
+	export KUBECONFIG="$HOME/.kube/config"
+	export pod_name="test-sysbench"
+
+	kubectl create -f "${SCRIPT_PATH}/runtimeclass_workloads/sysbench-pod.yaml"
+	kubectl wait --for=condition=Ready --timeout=120s pod "$pod_name"
+
+}
+
+function sysbench_cleanup() {
+	kubectl delete pod "$pod_name"
+	if [ -z "${CI_JOB}" ]; then
+		end_kubernetes
+		check_processes
+	fi
+}
+
+function main() {
+	init_env
+	sysbench_start_deployment
+	sysbench_memory
+	sysbench_cleanup
+}
+
+main "$@"