test: Add VM cache test

This will add a VM cache test, where we will enable this
feature and then we will run a container.

Fixes kata-containers#1259

Signed-off-by: Gabriela Cervantes <[email protected]>

Makefile

@@ -15,9 +15,7 @@ ifeq (${CI}, true)
 endif
 
 # union for 'make test'
-UNION := functional debug-console $(DOCKER_DEPENDENCY) openshift crio docker-compose network \
-	docker-stability oci netmon kubernetes swarm vm-factory \
-	entropy ramdisk shimv2 tracing time-drift
+UNION := functional vm-cache
 
 # filter scheme script for docker integration test suites
 FILTER_FILE = .ci/filter/filter_docker_test.sh
@@ -150,6 +148,8 @@ pentest:
 vm-factory:
 	bash -f integration/vm_factory/vm_templating_test.sh
 
+vm-cache:
+	bash -f integration/vm_cache/vm_cache_test.sh
 
 network:
 	systemctl is-active --quiet docker || sudo systemctl start docker

integration/vm_cache/vm_cache_test.sh

@@ -0,0 +1,77 @@
+#!/bin/bash
+#
+# Copyright (c) 2019 Intel Corporation.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# This test will perform several tests to validate kata containers with
+# vm cache.
+
+set -e
+
+cidir=$(dirname "$0")
+
+source "${cidir}/../../metrics/lib/common.bash"
+
+# Environment variables
+IMAGE="${IMAGE:-busybox}"
+PAYLOAD_ARGS="${PAYLOAD_ARGS:-tail -f /dev/null}"
+kata_runtime_bin=$(command -v kata-runtime)
+
+if [ -z $INITRD_PATH ]; then
+	echo "Skipping vm templating test as initrd is not set"
+	exit 0
+fi
+
+enable_vm_cache_config() {
+	echo "enable vm cache config"
+	sudo sed -i 's/#vm_cache_number = 0/vm_cache_number = 1/g' "${RUNTIME_CONFIG_PATH}"
+	sudo sed -i -e 's/^#\(use_vsock\).*=.*$/\1 = true/g' "${RUNTIME_CONFIG_PATH}"
+}
+
+disable_vm_cache_config() {
+	echo "disable vm cache config"
+	sudo sed -i 's/vm_cache_number = 1/#vm_cache_number = 0/g' "${RUNTIME_CONFIG_PATH}"
+	sudo sed -i -e 's/^\(use_vsock\).*=.*$/#\1 = true/g' "${RUNTIME_CONFIG_PATH}"
+}
+
+init_vm_template() {
+	sudo sed -i -e 's/^#enable_template.*$/enable_template = true/g' "${RUNTIME_CONFIG_PATH}"
+	echo "init vm template"
+	sudo -E PATH=$PATH "$kata_runtime_bin" factory init &
+	pid=$!
+	sudo kill -9 $pid
+}
+
+destroy_vm_template() {
+	echo "destroy vm template"
+	sudo -E PATH=$PATH "$kata_runtime_bin" factory destroy
+}
+
+setup() {
+	clean_env
+	extract_kata_env
+	enable_vm_cache_config
+	init_vm_template
+}
+
+test_docker_vm_cache() {
+	docker run -d --runtime $RUNTIME $IMAGE $PAYLOAD_ARGS
+	check_initrd=$(ps aux | grep ${HYPERVISOR_PATH} | grep initrd)
+	[ ! -z "${check_initrd}" ] || die "vm cache not running properly"
+}
+
+teardown() {
+	clean_env
+	disable_vm_cache_config
+}
+
+
+echo "Starting vm cache test"
+setup
+
+echo "Running vm cache test"
+test_docker_vm_cache
+
+echo "Ending vm cache test"
+teardown