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-rw-r--r--extras/hs-test/infra/hst_suite.go544
1 files changed, 544 insertions, 0 deletions
diff --git a/extras/hs-test/infra/hst_suite.go b/extras/hs-test/infra/hst_suite.go
new file mode 100644
index 00000000000..46aede7b7ef
--- /dev/null
+++ b/extras/hs-test/infra/hst_suite.go
@@ -0,0 +1,544 @@
+package hst
+
+import (
+ "bufio"
+ "errors"
+ "flag"
+ "fmt"
+ "io"
+ "log"
+ "os"
+ "os/exec"
+ "path/filepath"
+ "runtime"
+ "strings"
+ "time"
+
+ "github.com/onsi/gomega/gmeasure"
+ "gopkg.in/yaml.v3"
+
+ "github.com/edwarnicke/exechelper"
+ . "github.com/onsi/ginkgo/v2"
+ . "github.com/onsi/gomega"
+)
+
+const (
+ DEFAULT_NETWORK_NUM int = 1
+)
+
+var IsPersistent = flag.Bool("persist", false, "persists topology config")
+var IsVerbose = flag.Bool("verbose", false, "verbose test output")
+var IsUnconfiguring = flag.Bool("unconfigure", false, "remove topology")
+var IsVppDebug = flag.Bool("debug", false, "attach gdb to vpp")
+var NConfiguredCpus = flag.Int("cpus", 1, "number of CPUs assigned to vpp")
+var VppSourceFileDir = flag.String("vppsrc", "", "vpp source file directory")
+var SuiteTimeout time.Duration
+
+type HstSuite struct {
+ Containers map[string]*Container
+ StartedContainers []*Container
+ Volumes []string
+ NetConfigs []NetConfig
+ NetInterfaces map[string]*NetInterface
+ Ip4AddrAllocator *Ip4AddressAllocator
+ TestIds map[string]string
+ CpuAllocator *CpuAllocatorT
+ CpuContexts []*CpuContext
+ CpuPerVpp int
+ Ppid string
+ ProcessIndex string
+ Logger *log.Logger
+ LogFile *os.File
+}
+
+func getTestFilename() string {
+ _, filename, _, _ := runtime.Caller(2)
+ return filepath.Base(filename)
+}
+
+func (s *HstSuite) SetupSuite() {
+ s.CreateLogger()
+ s.Log("Suite Setup")
+ RegisterFailHandler(func(message string, callerSkip ...int) {
+ s.HstFail()
+ Fail(message, callerSkip...)
+ })
+ var err error
+ s.Ppid = fmt.Sprint(os.Getppid())
+ // remove last number so we have space to prepend a process index (interfaces have a char limit)
+ s.Ppid = s.Ppid[:len(s.Ppid)-1]
+ s.ProcessIndex = fmt.Sprint(GinkgoParallelProcess())
+ s.CpuAllocator, err = CpuAllocator()
+ if err != nil {
+ Fail("failed to init cpu allocator: " + fmt.Sprint(err))
+ }
+ s.CpuPerVpp = *NConfiguredCpus
+}
+
+func (s *HstSuite) AllocateCpus() []int {
+ cpuCtx, err := s.CpuAllocator.Allocate(len(s.StartedContainers), s.CpuPerVpp)
+ s.AssertNil(err)
+ s.AddCpuContext(cpuCtx)
+ return cpuCtx.cpus
+}
+
+func (s *HstSuite) AddCpuContext(cpuCtx *CpuContext) {
+ s.CpuContexts = append(s.CpuContexts, cpuCtx)
+}
+
+func (s *HstSuite) TearDownSuite() {
+ defer s.LogFile.Close()
+ s.Log("Suite Teardown")
+ s.UnconfigureNetworkTopology()
+}
+
+func (s *HstSuite) TearDownTest() {
+ s.Log("Test Teardown")
+ if *IsPersistent {
+ return
+ }
+ s.ResetContainers()
+ s.RemoveVolumes()
+ s.Ip4AddrAllocator.DeleteIpAddresses()
+}
+
+func (s *HstSuite) SkipIfUnconfiguring() {
+ if *IsUnconfiguring {
+ s.Skip("skipping to unconfigure")
+ }
+}
+
+func (s *HstSuite) SetupTest() {
+ s.Log("Test Setup")
+ s.StartedContainers = s.StartedContainers[:0]
+ s.SkipIfUnconfiguring()
+ s.SetupVolumes()
+ s.SetupContainers()
+}
+
+func (s *HstSuite) SetupVolumes() {
+ for _, volume := range s.Volumes {
+ cmd := "docker volume create --name=" + volume
+ s.Log(cmd)
+ exechelper.Run(cmd)
+ }
+}
+
+func (s *HstSuite) SetupContainers() {
+ for _, container := range s.Containers {
+ if !container.IsOptional {
+ container.Run()
+ }
+ }
+}
+
+func (s *HstSuite) LogVppInstance(container *Container, maxLines int) {
+ if container.VppInstance == nil {
+ return
+ }
+
+ logSource := container.GetHostWorkDir() + defaultLogFilePath
+ file, err := os.Open(logSource)
+
+ if err != nil {
+ return
+ }
+ defer file.Close()
+
+ scanner := bufio.NewScanner(file)
+ var lines []string
+ var counter int
+
+ for scanner.Scan() {
+ lines = append(lines, scanner.Text())
+ counter++
+ if counter > maxLines {
+ lines = lines[1:]
+ counter--
+ }
+ }
+
+ s.Log("vvvvvvvvvvvvvvv " + container.Name + " [VPP instance]:")
+ for _, line := range lines {
+ s.Log(line)
+ }
+ s.Log("^^^^^^^^^^^^^^^\n\n")
+}
+
+func (s *HstSuite) HstFail() {
+ for _, container := range s.StartedContainers {
+ out, err := container.log(20)
+ if err != nil {
+ s.Log("An error occured while obtaining '" + container.Name + "' container logs: " + fmt.Sprint(err))
+ s.Log("The container might not be running - check logs in " + container.getLogDirPath())
+ continue
+ }
+ s.Log("\nvvvvvvvvvvvvvvv " +
+ container.Name + ":\n" +
+ out +
+ "^^^^^^^^^^^^^^^\n\n")
+ s.LogVppInstance(container, 20)
+ }
+}
+
+func (s *HstSuite) AssertNil(object interface{}, msgAndArgs ...interface{}) {
+ Expect(object).To(BeNil(), msgAndArgs...)
+}
+
+func (s *HstSuite) AssertNotNil(object interface{}, msgAndArgs ...interface{}) {
+ Expect(object).ToNot(BeNil(), msgAndArgs...)
+}
+
+func (s *HstSuite) AssertEqual(expected, actual interface{}, msgAndArgs ...interface{}) {
+ Expect(actual).To(Equal(expected), msgAndArgs...)
+}
+
+func (s *HstSuite) AssertNotEqual(expected, actual interface{}, msgAndArgs ...interface{}) {
+ Expect(actual).ToNot(Equal(expected), msgAndArgs...)
+}
+
+func (s *HstSuite) AssertContains(testString, contains interface{}, msgAndArgs ...interface{}) {
+ Expect(testString).To(ContainSubstring(fmt.Sprint(contains)), msgAndArgs...)
+}
+
+func (s *HstSuite) AssertNotContains(testString, contains interface{}, msgAndArgs ...interface{}) {
+ Expect(testString).ToNot(ContainSubstring(fmt.Sprint(contains)), msgAndArgs...)
+}
+
+func (s *HstSuite) AssertNotEmpty(object interface{}, msgAndArgs ...interface{}) {
+ Expect(object).ToNot(BeEmpty(), msgAndArgs...)
+}
+
+func (s *HstSuite) CreateLogger() {
+ suiteName := s.GetCurrentSuiteName()
+ var err error
+ s.LogFile, err = os.Create("summary/" + suiteName + ".log")
+ if err != nil {
+ Fail("Unable to create log file.")
+ }
+ s.Logger = log.New(io.Writer(s.LogFile), "", log.LstdFlags)
+}
+
+// Logs to files by default, logs to stdout when VERBOSE=true with GinkgoWriter
+// to keep console tidy
+func (s *HstSuite) Log(arg any) {
+ logs := strings.Split(fmt.Sprint(arg), "\n")
+ for _, line := range logs {
+ s.Logger.Println(line)
+ }
+ if *IsVerbose {
+ GinkgoWriter.Println(arg)
+ }
+}
+
+func (s *HstSuite) Skip(args string) {
+ Skip(args)
+}
+
+func (s *HstSuite) SkipIfMultiWorker(args ...any) {
+ if *NConfiguredCpus > 1 {
+ s.Skip("test case not supported with multiple vpp workers")
+ }
+}
+
+func (s *HstSuite) SkipUnlessExtendedTestsBuilt() {
+ imageName := "hs-test/nginx-http3"
+
+ cmd := exec.Command("docker", "images", imageName)
+ byteOutput, err := cmd.CombinedOutput()
+ if err != nil {
+ s.Log("error while searching for docker image")
+ return
+ }
+ if !strings.Contains(string(byteOutput), imageName) {
+ s.Skip("extended tests not built")
+ }
+}
+
+func (s *HstSuite) ResetContainers() {
+ for _, container := range s.StartedContainers {
+ container.stop()
+ exechelper.Run("docker rm " + container.Name)
+ }
+}
+
+func (s *HstSuite) RemoveVolumes() {
+ for _, volumeName := range s.Volumes {
+ cmd := "docker volume rm " + volumeName
+ exechelper.Run(cmd)
+ os.RemoveAll(volumeName)
+ }
+}
+
+func (s *HstSuite) GetNetNamespaceByName(name string) string {
+ return s.ProcessIndex + name + s.Ppid
+}
+
+func (s *HstSuite) GetInterfaceByName(name string) *NetInterface {
+ return s.NetInterfaces[s.ProcessIndex+name+s.Ppid]
+}
+
+func (s *HstSuite) GetContainerByName(name string) *Container {
+ return s.Containers[s.ProcessIndex+name+s.Ppid]
+}
+
+/*
+ * Create a copy and return its address, so that individial tests which call this
+ * are not able to modify the original container and affect other tests by doing that
+ */
+func (s *HstSuite) GetTransientContainerByName(name string) *Container {
+ containerCopy := *s.Containers[s.ProcessIndex+name+s.Ppid]
+ return &containerCopy
+}
+
+func (s *HstSuite) LoadContainerTopology(topologyName string) {
+ data, err := os.ReadFile(containerTopologyDir + topologyName + ".yaml")
+ if err != nil {
+ Fail("read error: " + fmt.Sprint(err))
+ }
+ var yamlTopo YamlTopology
+ err = yaml.Unmarshal(data, &yamlTopo)
+ if err != nil {
+ Fail("unmarshal error: " + fmt.Sprint(err))
+ }
+
+ for _, elem := range yamlTopo.Volumes {
+ volumeMap := elem["volume"].(VolumeConfig)
+ hostDir := volumeMap["host-dir"].(string)
+ workingVolumeDir := logDir + s.GetCurrentTestName() + volumeDir
+ volDirReplacer := strings.NewReplacer("$HST_VOLUME_DIR", workingVolumeDir)
+ hostDir = volDirReplacer.Replace(hostDir)
+ s.Volumes = append(s.Volumes, hostDir)
+ }
+
+ s.Containers = make(map[string]*Container)
+ for _, elem := range yamlTopo.Containers {
+ newContainer, err := newContainer(s, elem)
+ newContainer.Suite = s
+ newContainer.Name = newContainer.Suite.ProcessIndex + newContainer.Name + newContainer.Suite.Ppid
+ if err != nil {
+ Fail("container config error: " + fmt.Sprint(err))
+ }
+ s.Containers[newContainer.Name] = newContainer
+ }
+}
+
+func (s *HstSuite) LoadNetworkTopology(topologyName string) {
+ data, err := os.ReadFile(networkTopologyDir + topologyName + ".yaml")
+ if err != nil {
+ Fail("read error: " + fmt.Sprint(err))
+ }
+ var yamlTopo YamlTopology
+ err = yaml.Unmarshal(data, &yamlTopo)
+ if err != nil {
+ Fail("unmarshal error: " + fmt.Sprint(err))
+ }
+
+ s.Ip4AddrAllocator = NewIp4AddressAllocator()
+ s.NetInterfaces = make(map[string]*NetInterface)
+
+ for _, elem := range yamlTopo.Devices {
+ if _, ok := elem["name"]; ok {
+ elem["name"] = s.ProcessIndex + elem["name"].(string) + s.Ppid
+ }
+
+ if peer, ok := elem["peer"].(NetDevConfig); ok {
+ if peer["name"].(string) != "" {
+ peer["name"] = s.ProcessIndex + peer["name"].(string) + s.Ppid
+ }
+ if _, ok := peer["netns"]; ok {
+ peer["netns"] = s.ProcessIndex + peer["netns"].(string) + s.Ppid
+ }
+ }
+
+ if _, ok := elem["netns"]; ok {
+ elem["netns"] = s.ProcessIndex + elem["netns"].(string) + s.Ppid
+ }
+
+ if _, ok := elem["interfaces"]; ok {
+ interfaceCount := len(elem["interfaces"].([]interface{}))
+ for i := 0; i < interfaceCount; i++ {
+ elem["interfaces"].([]interface{})[i] = s.ProcessIndex + elem["interfaces"].([]interface{})[i].(string) + s.Ppid
+ }
+ }
+
+ switch elem["type"].(string) {
+ case NetNs:
+ {
+ if namespace, err := newNetNamespace(elem); err == nil {
+ s.NetConfigs = append(s.NetConfigs, &namespace)
+ } else {
+ Fail("network config error: " + fmt.Sprint(err))
+ }
+ }
+ case Veth, Tap:
+ {
+ if netIf, err := newNetworkInterface(elem, s.Ip4AddrAllocator); err == nil {
+ s.NetConfigs = append(s.NetConfigs, netIf)
+ s.NetInterfaces[netIf.Name()] = netIf
+ } else {
+ Fail("network config error: " + fmt.Sprint(err))
+ }
+ }
+ case Bridge:
+ {
+ if bridge, err := newBridge(elem); err == nil {
+ s.NetConfigs = append(s.NetConfigs, &bridge)
+ } else {
+ Fail("network config error: " + fmt.Sprint(err))
+ }
+ }
+ }
+ }
+}
+
+func (s *HstSuite) ConfigureNetworkTopology(topologyName string) {
+ s.LoadNetworkTopology(topologyName)
+
+ if *IsUnconfiguring {
+ return
+ }
+
+ for _, nc := range s.NetConfigs {
+ s.Log(nc.Name())
+ if err := nc.configure(); err != nil {
+ Fail("Network config error: " + fmt.Sprint(err))
+ }
+ }
+}
+
+func (s *HstSuite) UnconfigureNetworkTopology() {
+ if *IsPersistent {
+ return
+ }
+ for _, nc := range s.NetConfigs {
+ nc.unconfigure()
+ }
+}
+
+func (s *HstSuite) GetTestId() string {
+ testName := s.GetCurrentTestName()
+
+ if s.TestIds == nil {
+ s.TestIds = map[string]string{}
+ }
+
+ if _, ok := s.TestIds[testName]; !ok {
+ s.TestIds[testName] = time.Now().Format("2006-01-02_15-04-05")
+ }
+
+ return s.TestIds[testName]
+}
+
+func (s *HstSuite) GetCurrentTestName() string {
+ return strings.Split(CurrentSpecReport().LeafNodeText, "/")[1]
+}
+
+func (s *HstSuite) GetCurrentSuiteName() string {
+ return CurrentSpecReport().ContainerHierarchyTexts[0]
+}
+
+// Returns last 3 digits of PID + Ginkgo process index as the 4th digit
+func (s *HstSuite) GetPortFromPpid() string {
+ port := s.Ppid
+ for len(port) < 3 {
+ port += "0"
+ }
+ return port[len(port)-3:] + s.ProcessIndex
+}
+
+func (s *HstSuite) StartServerApp(running chan error, done chan struct{}, env []string) {
+ cmd := exec.Command("iperf3", "-4", "-s", "-p", s.GetPortFromPpid())
+ if env != nil {
+ cmd.Env = env
+ }
+ s.Log(cmd)
+ err := cmd.Start()
+ if err != nil {
+ msg := fmt.Errorf("failed to start iperf server: %v", err)
+ running <- msg
+ return
+ }
+ running <- nil
+ <-done
+ cmd.Process.Kill()
+}
+
+func (s *HstSuite) StartClientApp(ipAddress string, env []string, clnCh chan error, clnRes chan string) {
+ defer func() {
+ clnCh <- nil
+ }()
+
+ nTries := 0
+
+ for {
+ cmd := exec.Command("iperf3", "-c", ipAddress, "-u", "-l", "1460", "-b", "10g", "-p", s.GetPortFromPpid())
+ if env != nil {
+ cmd.Env = env
+ }
+ s.Log(cmd)
+ o, err := cmd.CombinedOutput()
+ if err != nil {
+ if nTries > 5 {
+ clnCh <- fmt.Errorf("failed to start client app '%s'.\n%s", err, o)
+ return
+ }
+ time.Sleep(1 * time.Second)
+ nTries++
+ continue
+ } else {
+ clnRes <- fmt.Sprintf("Client output: %s", o)
+ }
+ break
+ }
+}
+
+func (s *HstSuite) StartHttpServer(running chan struct{}, done chan struct{}, addressPort, netNs string) {
+ cmd := newCommand([]string{"./http_server", addressPort, s.Ppid, s.ProcessIndex}, netNs)
+ err := cmd.Start()
+ s.Log(cmd)
+ if err != nil {
+ s.Log("Failed to start http server: " + fmt.Sprint(err))
+ return
+ }
+ running <- struct{}{}
+ <-done
+ cmd.Process.Kill()
+}
+
+func (s *HstSuite) StartWget(finished chan error, server_ip, port, query, netNs string) {
+ defer func() {
+ finished <- errors.New("wget error")
+ }()
+
+ cmd := newCommand([]string{"wget", "--timeout=10", "--no-proxy", "--tries=5", "-O", "/dev/null", server_ip + ":" + port + "/" + query},
+ netNs)
+ s.Log(cmd)
+ o, err := cmd.CombinedOutput()
+ if err != nil {
+ finished <- fmt.Errorf("wget error: '%v\n\n%s'", err, o)
+ return
+ } else if !strings.Contains(string(o), "200 OK") {
+ finished <- fmt.Errorf("wget error: response not 200 OK")
+ return
+ }
+ finished <- nil
+}
+
+/*
+runBenchmark creates Gomega's experiment with the passed-in name and samples the passed-in callback repeatedly (samplesNum times),
+passing in suite context, experiment and your data.
+
+You can also instruct runBenchmark to run with multiple concurrent workers.
+You can record multiple named measurements (float64 or duration) within passed-in callback.
+runBenchmark then produces report to show statistical distribution of measurements.
+*/
+func (s *HstSuite) RunBenchmark(name string, samplesNum, parallelNum int, callback func(s *HstSuite, e *gmeasure.Experiment, data interface{}), data interface{}) {
+ experiment := gmeasure.NewExperiment(name)
+
+ experiment.Sample(func(idx int) {
+ defer GinkgoRecover()
+ callback(s, experiment, data)
+ }, gmeasure.SamplingConfig{N: samplesNum, NumParallel: parallelNum})
+ AddReportEntry(experiment.Name, experiment)
+}