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utils.go
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utils.go
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// SPDX-License-Identifier: Apache-2.0
// Copyright Authors of Cilium
package helpers
import (
"bytes"
"context"
"fmt"
"html/template"
"io"
"os"
"path/filepath"
"strconv"
"strings"
"time"
"github.com/blang/semver/v4"
"github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"golang.org/x/sys/unix"
"github.com/cilium/cilium/pkg/rand"
"github.com/cilium/cilium/pkg/versioncheck"
"github.com/cilium/cilium/test/config"
ginkgoext "github.com/cilium/cilium/test/ginkgo-ext"
)
// ensure that our random numbers are seeded differently on each run
var randGen = rand.NewSafeRand(time.Now().UnixNano())
// IsRunningOnJenkins detects if the currently running Ginkgo application is
// most likely running in a Jenkins environment. Returns true if certain
// environment variables that are present in Jenkins jobs are set, false
// otherwise.
func IsRunningOnJenkins() bool {
result := true
env := []string{"JENKINS_HOME", "NODE_NAME"}
for _, varName := range env {
if val := os.Getenv(varName); val == "" {
result = false
log.Infof("build is not running on Jenkins; environment variable '%v' is not set", varName)
}
}
return result
}
// Sleep sleeps for the specified duration in seconds
func Sleep(delay time.Duration) {
time.Sleep(delay * time.Second)
}
// CountValues returns the count of the occurrences of key in data, as well as
// the length of data.
func CountValues(key string, data []string) (int, int) {
var result int
for _, x := range data {
if x == key {
result++
}
}
return result, len(data)
}
// MakeUID returns a randomly generated string.
func MakeUID() string {
return fmt.Sprintf("%08x", randGen.Uint32())
}
// RenderTemplate renders a text/template string into a buffer.
// Returns eturn an error if the template cannot be validated.
func RenderTemplate(tmplt string) (*bytes.Buffer, error) {
t, err := template.New("").Parse(tmplt)
if err != nil {
return nil, err
}
content := new(bytes.Buffer)
err = t.Execute(content, nil)
if err != nil {
return nil, err
}
return content, nil
}
// TimeoutConfig represents the configuration for the timeout of a command.
type TimeoutConfig struct {
Ticker time.Duration // Check interval
Timeout time.Duration // Limit for how long to spend in the command
}
// Validate ensuires that the parameters for the TimeoutConfig are reasonable
// for running in tests.
func (c *TimeoutConfig) Validate() error {
if c.Timeout < 5*time.Second {
return fmt.Errorf("Timeout too short (must be at least 5 seconds): %v", c.Timeout)
}
if c.Ticker == 0 {
c.Ticker = 1 * time.Second
} else if c.Ticker < time.Second {
return fmt.Errorf("Timeout config Ticker interval too short (must be at least 1 second): %v", c.Ticker)
}
return nil
}
// WithTimeout executes body using the time interval specified in config until
// the timeout in config is reached. Returns an error if the timeout is
// exceeded for body to execute successfully.
func WithTimeout(body func() bool, msg string, config *TimeoutConfig) error {
err := RepeatUntilTrue(body, config)
if err != nil {
return fmt.Errorf("%s: %s", msg, err)
}
return nil
}
// RepeatUntilTrueDefaultTimeout calls RepeatUntilTrue with the default timeout
// HelperTimeout
func RepeatUntilTrueDefaultTimeout(body func() bool) error {
return RepeatUntilTrue(body, &TimeoutConfig{Timeout: HelperTimeout})
}
// RepeatUntilTrue repeatedly calls body until body returns true or the timeout
// expires
func RepeatUntilTrue(body func() bool, config *TimeoutConfig) error {
if err := config.Validate(); err != nil {
return err
}
bodyChan := make(chan bool, 1)
asyncBody := func(ch chan bool) {
defer ginkgo.GinkgoRecover()
success := body()
ch <- success
if success {
close(ch)
}
}
go asyncBody(bodyChan)
done := time.After(config.Timeout)
ticker := time.NewTicker(config.Ticker)
defer ticker.Stop()
for {
select {
case success := <-bodyChan:
if success {
return nil
}
// Provide some form of rate-limiting here before running next
// execution in case body() returns at a fast rate.
<-ticker.C
go asyncBody(bodyChan)
case <-done:
return fmt.Errorf("%s timeout expired", config.Timeout)
}
}
}
// WithContext executes body with the given frequency. The function
// f is executed until bool returns true or the given context signalizes Done.
// `f` should stop if context is canceled.
func WithContext(ctx context.Context, f func(ctx context.Context) (bool, error), freq time.Duration) error {
ticker := time.NewTicker(freq)
defer ticker.Stop()
for {
select {
case <-ctx.Done():
return ctx.Err()
case <-ticker.C:
stop, err := f(ctx)
if err != nil {
select {
case <-ctx.Done():
return ctx.Err()
default:
return err
}
}
if stop {
select {
case <-ctx.Done():
return ctx.Err()
default:
return nil
}
}
}
}
}
// GetAppPods fetches app pod names for a namespace.
// For Http based tests, we identify pods with format id=<pod_name>, while
// for Kafka based tests, we identify pods with the format app=<pod_name>.
func GetAppPods(apps []string, namespace string, kubectl *Kubectl, appFmt string) map[string]string {
appPods := make(map[string]string)
for _, v := range apps {
res, err := kubectl.GetPodNames(namespace, fmt.Sprintf("%s=%s", appFmt, v))
Expect(err).Should(BeNil())
Expect(res).Should(Not(BeNil()))
appPods[v] = res[0]
log.Infof("GetAppPods: pod=%q assigned to %q", res[0], v)
}
return appPods
}
// HoldEnvironment prints the current test status, then pauses the test
// execution. Developers who are writing tests may wish to invoke this function
// directly from test code to assist troubleshooting and test development.
func HoldEnvironment(description ...string) {
test := ginkgo.CurrentGinkgoTestDescription()
pid := unix.Getpid()
fmt.Fprintf(os.Stdout, "\n---\n%s", test.FullTestText)
fmt.Fprintf(os.Stdout, "\nat %s:%d", test.FileName, test.LineNumber)
fmt.Fprintf(os.Stdout, "\n\n%s", description)
fmt.Fprintf(os.Stdout, "\n\nPausing test for debug, use vagrant to access test setup.")
fmt.Fprintf(os.Stdout, "\nRun \"kill -SIGCONT %d\" to continue.\n", pid)
unix.Kill(pid, unix.SIGSTOP)
time.Sleep(time.Millisecond)
fmt.Fprintf(os.Stdout, "Test resumed.\n")
}
// Fail is a Ginkgo failure handler which raises a SIGSTOP for the test process
// when there is a failure, so that developers can debug the live environment.
// It is only triggered if the developer provides a commandline flag.
func Fail(description string, callerSkip ...int) {
if len(callerSkip) > 0 {
callerSkip[0]++
} else {
callerSkip = []int{1}
}
if config.CiliumTestConfig.HoldEnvironment {
HoldEnvironment(description)
}
ginkgoext.Fail(description, callerSkip...)
}
// ReportDirectoryPath determines the directory path for exporting report
// commands in the case of test failure.
func ReportDirectoryPath() string {
prefix := ""
testName := ginkgoext.GetTestName()
if strings.HasPrefix(strings.ToLower(testName), K8s) {
prefix = fmt.Sprintf("%s-", strings.Replace(GetCurrentK8SEnv(), ".", "", -1))
}
return filepath.Join(TestResultsPath, prefix, testName)
}
// CreateReportDirectory creates and returns the directory path to export all report
// commands that need to be run in the case that a test has failed.
// If the directory cannot be created it'll return an error
func CreateReportDirectory() (string, error) {
testPath := ReportDirectoryPath()
if _, err := os.Stat(testPath); err == nil {
return testPath, nil
}
err := os.MkdirAll(testPath, os.ModePerm)
return testPath, err
}
// CreateLogFile creates the ReportDirectory if it is not present, writes the
// given data to the given filename.
func CreateLogFile(filename string, data []byte) error {
path, err := CreateReportDirectory()
if err != nil {
log.WithError(err).Errorf("ReportDirectory cannot be created")
return err
}
finalPath := filepath.Join(path, filename)
return os.WriteFile(finalPath, data, LogPerm)
}
// WriteToReportFile writes data to filename. It appends to existing files.
func WriteToReportFile(data []byte, filename string) error {
testPath, err := CreateReportDirectory()
if err != nil {
log.WithError(err).Errorf("cannot create test results path '%s'", testPath)
return err
}
err = WriteOrAppendToFile(
filepath.Join(testPath, filename),
data,
LogPerm)
if err != nil {
log.WithError(err).Errorf("cannot create monitor log file %s", filename)
return err
}
return nil
}
// reportMap saves the output of the given commands to the specified filename.
// Function needs a directory path where the files are going to be written and
// a *SSHMeta instance to execute the commands
func reportMap(path string, reportCmds map[string]string, node *SSHMeta) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
reportMapContext(ctx, path, reportCmds, node)
}
// reportMap saves the output of the given commands to the specified filename.
// Function needs a directory path where the files are going to be written and
// a *SSHMeta instance to execute the commands
func reportMapContext(ctx context.Context, path string, reportCmds map[string]string, node *SSHMeta) {
if node == nil {
log.Errorf("cannot execute reportMap due invalid node instance")
return
}
for cmd, logfile := range reportCmds {
res := node.ExecContext(ctx, cmd, ExecOptions{SkipLog: true})
err := os.WriteFile(
fmt.Sprintf("%s/%s", path, logfile),
res.CombineOutput().Bytes(),
LogPerm)
if err != nil {
log.WithError(err).Errorf("cannot create test results for command '%s'", cmd)
}
}
}
// ManifestGet returns the full path of the given manifest corresponding to the
// Kubernetes version being tested, if such a manifest exists, if not it
// returns the global manifest file.
// The paths are checked in order:
// 1- base_path/integration/filename
// 2- base_path/k8s_version/integration/filename
// 3- base_path/k8s_version/filename
// 4- base_path/filename
func ManifestGet(base, manifestFilename string) string {
// Try dependent integration file only if we have one configured. This is
// needed since no integration is "" and that causes us to find the
// base_path/filename before we check the base_path/k8s_version/filename
if integration := GetCurrentIntegration(); integration != "" {
fullPath := filepath.Join(K8sManifestBase, integration, manifestFilename)
_, err := os.Stat(fullPath)
if err == nil {
return filepath.Join(base, fullPath)
}
// try dependent k8s version and integration file
fullPath = filepath.Join(K8sManifestBase, GetCurrentK8SEnv(), integration, manifestFilename)
_, err = os.Stat(fullPath)
if err == nil {
return filepath.Join(base, fullPath)
}
}
// try dependent k8s version
fullPath := filepath.Join(K8sManifestBase, GetCurrentK8SEnv(), manifestFilename)
_, err := os.Stat(fullPath)
if err == nil {
return filepath.Join(base, fullPath)
}
return filepath.Join(base, K8sManifestBase, manifestFilename)
}
// WriteOrAppendToFile writes data to a file named by filename.
// If the file does not exist, WriteFile creates it with permissions perm;
// otherwise WriteFile appends the data to the file
func WriteOrAppendToFile(filename string, data []byte, perm os.FileMode) error {
f, err := os.OpenFile(filename, os.O_APPEND|os.O_WRONLY|os.O_CREATE, perm)
if err != nil {
return err
}
n, err := f.Write(data)
if err == nil && n < len(data) {
err = io.ErrShortWrite
}
if err1 := f.Close(); err == nil {
err = err1
}
return err
}
// DNSDeployment returns the manifest to install dns engine on the server.
func DNSDeployment(base string) string {
var DNSEngine = "coredns"
k8sVersion := GetCurrentK8SEnv()
switch k8sVersion {
case "1.8", "1.9", "1.10":
DNSEngine = "kubedns"
}
if integration := GetCurrentIntegration(); integration != "" {
fullPath := filepath.Join("provision", "manifest", k8sVersion, integration, DNSEngine+"_deployment.yaml")
_, err := os.Stat(fullPath)
if err == nil {
return filepath.Join(base, fullPath)
}
}
fullPath := filepath.Join("provision", "manifest", k8sVersion, DNSEngine+"_deployment.yaml")
_, err := os.Stat(fullPath)
if err == nil {
return filepath.Join(base, fullPath)
}
return filepath.Join(base, "provision", "manifest", DNSEngine+"_deployment.yaml")
}
// getK8sSupportedConstraints returns the Kubernetes versions supported by
// a specific Cilium version.
func getK8sSupportedConstraints(ciliumVersion string) (semver.Range, error) {
cst, err := versioncheck.Version(ciliumVersion)
if err != nil {
return nil, err
}
switch {
case IsCiliumV1_16(cst):
return versioncheck.MustCompile(">=1.16.0 <1.30.0"), nil
case IsCiliumV1_15(cst):
return versioncheck.MustCompile(">=1.16.0 <1.30.0"), nil
case IsCiliumV1_14(cst):
return versioncheck.MustCompile(">=1.16.0 <1.28.0"), nil
case IsCiliumV1_13(cst):
return versioncheck.MustCompile(">=1.16.0 <1.27.0"), nil
case IsCiliumV1_12(cst):
return versioncheck.MustCompile(">=1.16.0 <1.25.0"), nil
case IsCiliumV1_11(cst):
return versioncheck.MustCompile(">=1.16.0 <1.24.0"), nil
case IsCiliumV1_10(cst):
return versioncheck.MustCompile(">=1.16.0 <1.22.0"), nil
case IsCiliumV1_9(cst):
return versioncheck.MustCompile(">=1.12.0 <1.20.0"), nil
case IsCiliumV1_8(cst):
return versioncheck.MustCompile(">=1.10.0 <1.19.0"), nil
default:
return nil, fmt.Errorf("unrecognized version '%s'", ciliumVersion)
}
}
// CanRunK8sVersion returns true if the givel ciliumVersion can run in the given
// Kubernetes version. If any version is unparsable, an error is returned.
func CanRunK8sVersion(ciliumVersion, k8sVersionStr string) (bool, error) {
k8sVersion, err := versioncheck.Version(k8sVersionStr)
if err != nil {
return false, err
}
constraint, err := getK8sSupportedConstraints(ciliumVersion)
if err != nil {
return false, err
}
return constraint(k8sVersion), nil
}
// failIfContainsBadLogMsg makes a test case to fail if any message from
// given log messages contains an entry from the blacklist (map key) AND
// does not contain ignore messages (map value).
func failIfContainsBadLogMsg(logs, label string, blacklist map[string][]string) {
uniqueFailures := make(map[string]int)
for _, msg := range strings.Split(logs, "\n") {
for fail, ignoreMessages := range blacklist {
if strings.Contains(msg, fail) {
ok := false
for _, ignore := range ignoreMessages {
if strings.Contains(msg, ignore) {
ok = true
break
}
}
if !ok {
count := uniqueFailures[msg]
uniqueFailures[msg] = count + 1
}
}
}
}
if len(uniqueFailures) > 0 {
failures := make([]string, 0, len(uniqueFailures))
for f, c := range uniqueFailures {
failures = append(failures, f)
fmt.Fprintf(CheckLogs, "⚠️ Found %q in logs %d times\n", f, c)
}
failureMsgs := strings.Join(failures, "\n")
Fail(fmt.Sprintf("Found %d %s logs matching list of errors that must be investigated:\n%s", len(uniqueFailures), label, failureMsgs))
}
}
// RunsOnNetNextKernel checks whether a test case is running on the net-next
// kernel (depending on the image, it's the latest kernel either from net-next.git
// or bpf-next.git tree).
func RunsOnNetNextKernel() bool {
netNext := os.Getenv("NETNEXT")
if netNext == "true" || netNext == "1" {
return true
}
netNext = os.Getenv("KERNEL")
return netNext == "net-next"
}
// DoesNotRunOnNetNextKernel is the complement function of RunsOnNetNextKernel.
func DoesNotRunOnNetNextKernel() bool {
return !RunsOnNetNextKernel()
}
// RunsOn54Kernel checks whether a test case is running on the 5.4 kernel.
func RunsOn54Kernel() bool {
return os.Getenv("KERNEL") == "54"
}
// DoesNotRunOn54Kernel is the complement function of RunsOn54Kernel.
func DoesNotRunOn54Kernel() bool {
return !RunsOn54Kernel()
}
// RunsOn419Kernel checks whether a test case is running on the 4.19 kernel.
func RunsOn419Kernel() bool {
return os.Getenv("KERNEL") == "419"
}
func NativeRoutingCIDR() string {
return os.Getenv("NATIVE_CIDR")
}
// DoesNotRunOn419Kernel is the complement function of RunsOn419Kernel.
func DoesNotRunOn419Kernel() bool {
return !RunsOn419Kernel()
}
// RunsOn419OrLaterKernel checks whether a test case is running on 4.19.x (x > 57) or later kernel
func RunsOn419OrLaterKernel() bool {
return RunsOnNetNextKernel() || RunsOn419Kernel() || RunsOn54Kernel()
}
// DoesNotRunOn419OrLaterKernel is the complement function of
// RunsOn419OrLaterKernel.
func DoesNotRunOn419OrLaterKernel() bool {
return !RunsOn419OrLaterKernel()
}
// RunsOn54OrLaterKernel checks whether a test case is running on 5.4 or later kernel
func RunsOn54OrLaterKernel() bool {
return RunsOnNetNextKernel() || RunsOn54Kernel()
}
// DoesNotRunOn54OrLaterKernel is the complement function of RunsOn54OrLaterKernel
func DoesNotRunOn54OrLaterKernel() bool {
return !RunsOn54OrLaterKernel()
}
// RunsOnGKE returns true if the tests are running on GKE.
func RunsOnGKE() bool {
return GetCurrentIntegration() == CIIntegrationGKE
}
// DoesNotRunOnGKE is the complement function of DoesNotRunOnGKE.
func DoesNotRunOnGKE() bool {
return !RunsOnGKE()
}
// RunsOnAKS returns true if the tests are running on AKS.
func RunsOnAKS() bool {
return GetCurrentIntegration() == CIIntegrationAKS
}
// DoesNotRunOnAKS is the complement function of DoesNotRunOnAKS.
func DoesNotRunOnAKS() bool {
return !RunsOnAKS()
}
// RunsOnEKS returns true if the tests are running on EKS.
func RunsOnEKS() bool {
return GetCurrentIntegration() == CIIntegrationEKS
}
// DoesNotRunOnEKS is the complement function of DoesNotRunOnEKS.
func DoesNotRunOnEKS() bool {
return !RunsOnEKS()
}
// RunsWithKubeProxyReplacement returns true if the kernel supports our
// kube-proxy replacement. Note that kube-proxy may still be running
// alongside Cilium.
func RunsWithKubeProxyReplacement() bool {
return RunsOnGKE() || RunsOn54OrLaterKernel()
}
// DoesNotRunWithKubeProxyReplacement is the complement function of
// RunsWithKubeProxyReplacement.
func DoesNotRunWithKubeProxyReplacement() bool {
return !RunsWithKubeProxyReplacement()
}
// DoesNotHaveHosts returns a function which returns true if a CI job
// has less VMs than the given count.
func DoesNotHaveHosts(count int) func() bool {
return func() bool {
if c, err := strconv.Atoi(os.Getenv("K8S_NODES")); err != nil {
return true
} else {
return c < count
}
}
}
// RunsWithHostFirewall returns true is Cilium runs with the host firewall enabled.
func RunsWithHostFirewall() bool {
return os.Getenv("HOST_FIREWALL") != "0" && os.Getenv("HOST_FIREWALL") != ""
}
// RunsWithKubeProxy returns true if cilium runs together with k8s' kube-proxy.
func RunsWithKubeProxy() bool {
return os.Getenv("KUBEPROXY") != "0"
}
// RunsWithoutKubeProxy is the complement function of RunsWithKubeProxy.
func RunsWithoutKubeProxy() bool {
return !RunsWithKubeProxy()
}
// ExistNodeWithoutCilium returns true if there is a node in a cluster which does
// not run Cilium.
func ExistNodeWithoutCilium() bool {
return len(GetNodesWithoutCilium()) > 0
}
// DoesNotExistNodeWithoutCilium is the complement function of ExistNodeWithoutCilium.
func DoesNotExistNodeWithoutCilium() bool {
return !ExistNodeWithoutCilium()
}
func RunsOnJenkins() bool {
return os.Getenv("JENKINS_HOME") != ""
}
// HasSocketLB returns true if the given Cilium pod has TCP and/or
// UDP host reachable services are enabled.
func (kub *Kubectl) HasSocketLB(pod string) bool {
status := kub.CiliumExecContext(context.TODO(), pod,
"cilium-dbg status -o jsonpath='{.kube-proxy-replacement.features.socketLB}'")
status.ExpectSuccess("Failed to get status: %s", status.OutputPrettyPrint())
lines := status.ByLines()
Expect(len(lines)).ShouldNot(Equal(0), "Failed to get socketLB status")
return strings.Contains(lines[0], "true")
}
// HasBPFNodePort returns true if the given Cilium pod has BPF NodePort enabled.
func (kub *Kubectl) HasBPFNodePort(pod string) bool {
status := kub.CiliumExecContext(context.TODO(), pod,
"cilium-dbg status -o jsonpath='{.kube-proxy-replacement.features.nodePort.enabled}'")
status.ExpectSuccess("Failed to get status: %s", status.OutputPrettyPrint())
lines := status.ByLines()
Expect(len(lines)).ShouldNot(Equal(0), "Failed to get nodePort status")
return strings.Contains(lines[0], "true")
}
// GetNodesWithoutCilium returns a slice of names for nodes that do not run
// Cilium.
func GetNodesWithoutCilium() []string {
if os.Getenv("NO_CILIUM_ON_NODES") == "" {
if os.Getenv("NO_CILIUM_ON_NODE") == "" {
return []string{}
}
return []string{os.Getenv("NO_CILIUM_ON_NODE")}
}
return strings.Split(os.Getenv("NO_CILIUM_ON_NODES"), ",")
}
// GetFirstNodeWithoutCilium returns the first node that does not run Cilium.
// It's the responsibility of the caller to check that there are nodes without
// Cilium.
func GetFirstNodeWithoutCilium() string {
noCiliumNodes := GetNodesWithoutCilium()
return noCiliumNodes[0]
}
// GetFirstNodeWithoutCiliumLabel returns the ci-node label value of the first node
// which is running without Cilium.
func (kub *Kubectl) GetFirstNodeWithoutCiliumLabel() string {
nodeName := GetFirstNodeWithoutCilium()
return kub.GetNodeCILabel(nodeName)
}
// GetNodeCILabel returns the ci-node label value of the given node.
func (kub *Kubectl) GetNodeCILabel(nodeName string) string {
cmd := fmt.Sprintf("%s get node %s -o jsonpath='{.metadata.labels.cilium\\.io/ci-node}'",
KubectlCmd, nodeName)
res := kub.ExecShort(cmd)
if !res.WasSuccessful() {
return ""
}
return res.SingleOut()
}
// IsNodeWithoutCilium returns true if node node doesn't run Cilium.
func IsNodeWithoutCilium(node string) bool {
for _, n := range GetNodesWithoutCilium() {
if n == node {
return true
}
}
return false
}
// GetLatestImageVersion infers which docker tag should be used
func GetLatestImageVersion() string {
if len(config.CiliumTestConfig.CiliumTag) > 0 {
return config.CiliumTestConfig.CiliumTag
}
return "latest"
}
// SkipQuarantined returns whether test under quarantine should be skipped
func SkipQuarantined() bool {
return !config.CiliumTestConfig.RunQuarantined
}
// SkipRaceDetectorEnabled returns whether tests failing with race detector
// enabled should be skipped.
func SkipRaceDetectorEnabled() bool {
race := os.Getenv("RACE")
return race == "1" || race == "true"
}
// SkipK8sVersions returns true if the current K8s versions matched the
// constraints passed in argument.
func SkipK8sVersions(k8sVersions string) bool {
k8sVersion, err := versioncheck.Version(GetCurrentK8SEnv())
if err != nil {
return false
}
constraint := versioncheck.MustCompile(k8sVersions)
return constraint(k8sVersion)
}
// DualStackSupported returns whether the current environment has DualStack IPv6
// enabled or not for the cluster.
func DualStackSupported() bool {
supportedVersions := versioncheck.MustCompile(">=1.18.0")
kubeProxyOnlySupportedVersions := versioncheck.MustCompile(">=1.20.0")
k8sVersion, err := versioncheck.Version(GetCurrentK8SEnv())
if err != nil {
// If we cannot conclude the k8s version we assume that dual stack is not
// supported.
return false
}
// When running with kube-proxy only, some IPv6 family services are not
// provisioned in ip6tables on k8s < 1.20. Therefore, skip any DualStack
// tests on those versions/configurations.
if DoesNotRunWithKubeProxyReplacement() && !kubeProxyOnlySupportedVersions(k8sVersion) {
return false
}
// AKS does not support dual stack yet
if IsIntegration(CIIntegrationAKS) {
return false
}
// We only have DualStack enabled in Vagrant test env or on KIND.
return (GetCurrentIntegration() == "" || IsIntegration(CIIntegrationKind)) &&
supportedVersions(k8sVersion)
}
// DualStackSupportBeta returns true if the environment has a Kubernetes version that
// has support for k8s DualStack beta API types.
func DualStackSupportBeta() bool {
// DualStack support was promoted to beta with API types finalized in k8s 1.21
// The API types for dualstack services are same in k8s 1.20 and 1.21 so we include
// K8s version 1.20 as well.
// https://github.com/kubernetes/kubernetes/pull/98969
supportedVersions := versioncheck.MustCompile(">=1.20.0")
k8sVersion, err := versioncheck.Version(GetCurrentK8SEnv())
if err != nil {
return false
}
// AKS does not support dual stack yet
if IsIntegration(CIIntegrationAKS) {
return false
}
return (GetCurrentIntegration() == "" || IsIntegration(CIIntegrationKind)) &&
supportedVersions(k8sVersion)
}
// CiliumEndpointSliceFeatureEnabled returns true only if the environment has a kubernetes version
// greater than or equal to 1.21.
func CiliumEndpointSliceFeatureEnabled() bool {
k8sVersionGreaterEqual121 := versioncheck.MustCompile(">=1.21.0")
k8sVersion, err := versioncheck.Version(GetCurrentK8SEnv())
if err != nil {
return false
}
return k8sVersionGreaterEqual121(k8sVersion) && (GetCurrentIntegration() == "" ||
IsIntegration(CIIntegrationKind))
}
// SupportIPv6Connectivity returns true if the CI environment supports IPv6
// connectivity across pods.
func SupportIPv6Connectivity() bool {
supportedVersions := versioncheck.MustCompile(">=1.20.0")
k8sVersion, err := versioncheck.Version(GetCurrentK8SEnv())
if err != nil {
return false
}
if supportedVersions(k8sVersion) {
return true
}
if IsIntegration(CIIntegrationKind) {
return false
}
return true
}
// SupportIPv6ToOutside returns true if the CI environment supports IPv6
// connectivity to the outside world.
func SupportIPv6ToOutside() bool {
return os.Getenv("CILIUM_NO_IPV6_OUTSIDE") == ""
}