mirror of
https://github.com/kubeshark/kubeshark.git
synced 2026-03-16 16:41:06 +00:00
Compare commits
2 Commits
| Author | SHA1 | Date | |
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b50eced489 | ||
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5392475486 |
@@ -2,11 +2,13 @@ package cmd
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import (
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"errors"
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"fmt"
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"os"
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"github.com/up9inc/mizu/cli/config"
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"github.com/up9inc/mizu/cli/config/configStructs"
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"github.com/up9inc/mizu/cli/logger"
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"github.com/up9inc/mizu/cli/telemetry"
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"os"
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"github.com/creasty/defaults"
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"github.com/spf13/cobra"
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@@ -66,4 +68,7 @@ func init() {
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tapCmd.Flags().String(configStructs.HumanMaxEntriesDBSizeTapName, defaultTapConfig.HumanMaxEntriesDBSize, "Override the default max entries db size")
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tapCmd.Flags().Bool(configStructs.DryRunTapName, defaultTapConfig.DryRun, "Preview of all pods matching the regex, without tapping them")
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tapCmd.Flags().String(configStructs.EnforcePolicyFile, defaultTapConfig.EnforcePolicyFile, "Yaml file with policy rules")
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tapCmd.Flags().String(configStructs.EnforcePolicyFileDeprecated, defaultTapConfig.EnforcePolicyFileDeprecated, "Yaml file with policy rules")
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tapCmd.Flags().MarkDeprecated(configStructs.EnforcePolicyFileDeprecated, fmt.Sprintf("Use --%s instead", configStructs.EnforcePolicyFile))
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}
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@@ -47,14 +47,23 @@ func RunMizuTap() {
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logger.Log.Errorf(uiUtils.Error, fmt.Sprintf("Error parsing regex-masking: %v", errormessage.FormatError(err)))
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return
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}
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var mizuValidationRules string
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if config.Config.Tap.EnforcePolicyFile != "" {
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mizuValidationRules, err = readValidationRules(config.Config.Tap.EnforcePolicyFile)
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if config.Config.Tap.EnforcePolicyFile != "" || config.Config.Tap.EnforcePolicyFileDeprecated != "" {
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var trafficValidation string
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if config.Config.Tap.EnforcePolicyFile != "" {
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trafficValidation = config.Config.Tap.EnforcePolicyFile
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} else {
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trafficValidation = config.Config.Tap.EnforcePolicyFileDeprecated
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}
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mizuValidationRules, err = readValidationRules(trafficValidation)
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if err != nil {
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logger.Log.Errorf(uiUtils.Error, fmt.Sprintf("Error reading policy file: %v", errormessage.FormatError(err)))
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return
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}
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}
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kubernetesProvider, err := kubernetes.NewProvider(config.Config.KubeConfigPath())
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if err != nil {
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logger.Log.Error(err)
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@@ -109,7 +118,7 @@ func RunMizuTap() {
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}
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go goUtils.HandleExcWrapper(watchApiServerPod, ctx, kubernetesProvider, cancel)
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go goUtils.HandleExcWrapper(watchPodsForTapping, ctx, kubernetesProvider, targetNamespaces, cancel)
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go goUtils.HandleExcWrapper(watchPodsForTapping, ctx, kubernetesProvider, targetNamespaces, cancel, mizuApiFilteringOptions)
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//block until exit signal or error
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waitForFinish(ctx, cancel)
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@@ -135,7 +144,7 @@ func createMizuResources(ctx context.Context, kubernetesProvider *kubernetes.Pro
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return err
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}
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if err := updateMizuTappers(ctx, kubernetesProvider, nodeToTappedPodIPMap); err != nil {
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if err := updateMizuTappers(ctx, kubernetesProvider, nodeToTappedPodIPMap, mizuApiFilteringOptions); err != nil {
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return err
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}
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@@ -221,7 +230,7 @@ func getMizuApiFilteringOptions() (*api.TrafficFilteringOptions, error) {
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}, nil
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}
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func updateMizuTappers(ctx context.Context, kubernetesProvider *kubernetes.Provider, nodeToTappedPodIPMap map[string][]string) error {
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func updateMizuTappers(ctx context.Context, kubernetesProvider *kubernetes.Provider, nodeToTappedPodIPMap map[string][]string, mizuApiFilteringOptions *api.TrafficFilteringOptions) error {
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if len(nodeToTappedPodIPMap) > 0 {
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var serviceAccountName string
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if state.mizuServiceAccountExists {
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@@ -241,6 +250,7 @@ func updateMizuTappers(ctx context.Context, kubernetesProvider *kubernetes.Provi
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serviceAccountName,
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config.Config.Tap.TapperResources,
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config.Config.ImagePullPolicy(),
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mizuApiFilteringOptions,
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); err != nil {
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return err
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}
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@@ -347,7 +357,7 @@ func waitUntilNamespaceDeleted(ctx context.Context, cancel context.CancelFunc, k
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}
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}
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func watchPodsForTapping(ctx context.Context, kubernetesProvider *kubernetes.Provider, targetNamespaces []string, cancel context.CancelFunc) {
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func watchPodsForTapping(ctx context.Context, kubernetesProvider *kubernetes.Provider, targetNamespaces []string, cancel context.CancelFunc, mizuApiFilteringOptions *api.TrafficFilteringOptions) {
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added, modified, removed, errorChan := kubernetes.FilteredWatch(ctx, kubernetesProvider, targetNamespaces, config.Config.Tap.PodRegex())
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restartTappers := func() {
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@@ -371,7 +381,7 @@ func watchPodsForTapping(ctx context.Context, kubernetesProvider *kubernetes.Pro
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logger.Log.Errorf(uiUtils.Error, fmt.Sprintf("Error building node to ips map: %v", errormessage.FormatError(err)))
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cancel()
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}
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if err := updateMizuTappers(ctx, kubernetesProvider, nodeToTappedPodIPMap); err != nil {
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if err := updateMizuTappers(ctx, kubernetesProvider, nodeToTappedPodIPMap, mizuApiFilteringOptions); err != nil {
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logger.Log.Errorf(uiUtils.Error, fmt.Sprintf("Error updating daemonset: %v", errormessage.FormatError(err)))
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cancel()
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}
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@@ -16,7 +16,8 @@ const (
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DisableRedactionTapName = "no-redact"
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HumanMaxEntriesDBSizeTapName = "max-entries-db-size"
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DryRunTapName = "dry-run"
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EnforcePolicyFile = "test-rules"
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EnforcePolicyFile = "traffic-validation"
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EnforcePolicyFileDeprecated = "test-rules"
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)
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type TapConfig struct {
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@@ -32,7 +33,8 @@ type TapConfig struct {
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DisableRedaction bool `yaml:"no-redact" default:"false"`
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HumanMaxEntriesDBSize string `yaml:"max-entries-db-size" default:"200MB"`
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DryRun bool `yaml:"dry-run" default:"false"`
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EnforcePolicyFile string `yaml:"test-rules"`
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EnforcePolicyFile string `yaml:"traffic-validation"`
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EnforcePolicyFileDeprecated string `yaml:"test-rules"`
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ApiServerResources Resources `yaml:"api-server-resources"`
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TapperResources Resources `yaml:"tapper-resources"`
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}
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@@ -576,7 +576,7 @@ func (provider *Provider) CreateConfigMap(ctx context.Context, namespace string,
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return nil
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}
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func (provider *Provider) ApplyMizuTapperDaemonSet(ctx context.Context, namespace string, daemonSetName string, podImage string, tapperPodName string, apiServerPodIp string, nodeToTappedPodIPMap map[string][]string, serviceAccountName string, resources configStructs.Resources, imagePullPolicy core.PullPolicy) error {
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func (provider *Provider) ApplyMizuTapperDaemonSet(ctx context.Context, namespace string, daemonSetName string, podImage string, tapperPodName string, apiServerPodIp string, nodeToTappedPodIPMap map[string][]string, serviceAccountName string, resources configStructs.Resources, imagePullPolicy core.PullPolicy, mizuApiFilteringOptions *api.TrafficFilteringOptions) error {
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logger.Log.Debugf("Applying %d tapper daemon sets, ns: %s, daemonSetName: %s, podImage: %s, tapperPodName: %s", len(nodeToTappedPodIPMap), namespace, daemonSetName, podImage, tapperPodName)
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if len(nodeToTappedPodIPMap) == 0 {
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@@ -588,6 +588,11 @@ func (provider *Provider) ApplyMizuTapperDaemonSet(ctx context.Context, namespac
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return err
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}
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marshaledFilteringOptions, err := json.Marshal(mizuApiFilteringOptions)
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if err != nil {
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return err
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}
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mizuCmd := []string{
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"./mizuagent",
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"-i", "any",
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@@ -606,6 +611,7 @@ func (provider *Provider) ApplyMizuTapperDaemonSet(ctx context.Context, namespac
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applyconfcore.EnvVar().WithName(shared.HostModeEnvVar).WithValue("1"),
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applyconfcore.EnvVar().WithName(shared.TappedAddressesPerNodeDictEnvVar).WithValue(string(nodeToTappedPodIPMapJsonStr)),
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applyconfcore.EnvVar().WithName(shared.GoGCEnvVar).WithValue("12800"),
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applyconfcore.EnvVar().WithName(shared.MizuFilteringOptionsEnvVar).WithValue(string(marshaledFilteringOptions)),
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)
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agentContainer.WithEnv(
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applyconfcore.EnvVar().WithName(shared.NodeNameEnvVar).WithValueFrom(
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@@ -24,14 +24,14 @@ To use this feature - create simple rules file (see details below) and pass this
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```shell
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mizu tap --test-rules rules.yaml PODNAME
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mizu tap --traffic-validation rules.yaml PODNAME
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```
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## Rules file structure
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The structure of the test-rules-file is:
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The structure of the traffic-validation-file is:
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* `name`: string, name of the rule
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* `type`: string, type of the rule, must be `json` or `header` or `latency`
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@@ -14,7 +14,9 @@ import (
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)
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func filterAndEmit(item *api.OutputChannelItem, emitter api.Emitter, options *api.TrafficFilteringOptions) {
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FilterSensitiveData(item, options)
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if !options.DisableRedaction {
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FilterSensitiveData(item, options)
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}
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emitter.Emit(item)
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}
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