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TRA-3360 Fix: Mizu ignores -n namespace flag and records traffic from all pods (#75)

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Do not tap pods in namespaces which were not requested.
This commit is contained in:
nimrod-up9
2021-06-21 12:07:25 +03:00
committed by GitHub
parent 9a1c17cc61
commit 756f5f5720
2 changed files with 8 additions and 6 deletions
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9
cli/cmd/tapRunner.go
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@@ -38,7 +38,8 @@ func RunMizuTap(podRegexQuery *regexp.Regexp, tappingOptions *MizuTapOptions) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel() // cancel will be called when this function exits
if matchingPods, err := kubernetesProvider.GetAllPodsMatchingRegex(ctx, podRegexQuery); err != nil {
targetNamespace := getNamespace(tappingOptions, kubernetesProvider)
if matchingPods, err := kubernetesProvider.GetAllPodsMatchingRegex(ctx, podRegexQuery, targetNamespace); err != nil {
return
} else {
currentlyTappedPods = matchingPods
@@ -146,10 +147,12 @@ func cleanUpMizuResources(kubernetesProvider *kubernetes.Provider) {
}
func watchPodsForTapping(ctx context.Context, kubernetesProvider *kubernetes.Provider, cancel context.CancelFunc, podRegex *regexp.Regexp, tappingOptions *MizuTapOptions) {
added, modified, removed, errorChan := kubernetes.FilteredWatch(ctx, kubernetesProvider.GetPodWatcher(ctx, getNamespace(tappingOptions, kubernetesProvider)), podRegex)
targetNamespace := getNamespace(tappingOptions, kubernetesProvider)
added, modified, removed, errorChan := kubernetes.FilteredWatch(ctx, kubernetesProvider.GetPodWatcher(ctx, targetNamespace), podRegex)
restartTappers := func() {
if matchingPods, err := kubernetesProvider.GetAllPodsMatchingRegex(ctx, podRegex); err != nil {
if matchingPods, err := kubernetesProvider.GetAllPodsMatchingRegex(ctx, podRegex, targetNamespace); err != nil {
fmt.Printf("Error getting pods by regex: %s (%v,%+v)\n", err, err, err)
cancel()
} else {