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This commit is contained in:
M. Mert Yildiran 2023-06-29 02:13:47 +03:00
parent 242a276c5f
commit 261e850a59
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GPG Key ID: DA5D6DCBB758A461
2 changed files with 33 additions and 28 deletions
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2
cmd/tap.go
View File

@ -56,7 +56,7 @@ func init() {
tapCmd.Flags().String(configStructs.StorageLimitLabel, defaultTapConfig.StorageLimit, "Override the default storage limit (per node)")
tapCmd.Flags().String(configStructs.StorageClassLabel, defaultTapConfig.StorageClass, "Override the default storage class of the PersistentVolumeClaim (per node)")
tapCmd.Flags().Bool(configStructs.DryRunLabel, defaultTapConfig.DryRun, "Preview of all pods matching the regex, without tapping them")
tapCmd.Flags().StringP(configStructs.PcapLabel, "p", defaultTapConfig.Pcap, fmt.Sprintf("Capture from a PCAP snapshot of %s (.tar.gz) using your Docker Daemon instead of Kubernetes. TAR path, S3 URL (object or bucket)", misc.Software))
tapCmd.Flags().StringP(configStructs.PcapLabel, "p", defaultTapConfig.Pcap, fmt.Sprintf("Capture from a PCAP snapshot of %s (.tar.gz) using your Docker Daemon instead of Kubernetes. TAR path from the file system or an S3 URL (object, folder or the bucket)", misc.Software))
tapCmd.Flags().Bool(configStructs.ServiceMeshLabel, defaultTapConfig.ServiceMesh, "Capture the encrypted traffic if the cluster is configured with a service mesh and with mTLS")
tapCmd.Flags().Bool(configStructs.TlsLabel, defaultTapConfig.Tls, "Capture the traffic that's encrypted with OpenSSL or Go crypto/tls libraries")
tapCmd.Flags().Bool(configStructs.IgnoreTaintedLabel, defaultTapConfig.IgnoreTainted, "Ignore tainted pods while running Worker DaemonSet")

59
cmd/tapPcapRunner.go
View File

@ -306,7 +306,23 @@ func downloadTarFromS3(s3Url string) (tarPath string, err error) {
return
}
if key == "" {
var file *os.File
file, err = os.CreateTemp(os.TempDir(), filepath.Base(key))
if err != nil {
return
}
defer file.Close()
log.Info().Str("bucket", bucket).Str("key", key).Msg("Downloading from S3")
downloader := manager.NewDownloader(client)
_, err = downloader.Download(context.TODO(), file, &s3.GetObjectInput{
Bucket: aws.String(bucket),
Key: aws.String(key),
})
if err != nil {
log.Info().Err(err).Msg("S3 object is not found. Assuming URL is not a single object. Listing the objects in given folder or the bucket to download...")
var tempDirPath string
tempDirPath, err = os.MkdirTemp(os.TempDir(), "kubeshark_*")
if err != nil {
@ -314,25 +330,30 @@ func downloadTarFromS3(s3Url string) (tarPath string, err error) {
}
for _, object := range listObjectsOutput.Contents {
key = *object.Key
fullPath := filepath.Join(tempDirPath, key)
objectKey := *object.Key
if !strings.HasPrefix(objectKey, key) {
continue
}
fullPath := filepath.Join(tempDirPath, objectKey)
err = os.MkdirAll(filepath.Dir(fullPath), os.ModePerm)
if err != nil {
return
}
var file *os.File
file, err = os.Create(fullPath)
var objectFile *os.File
objectFile, err = os.Create(fullPath)
if err != nil {
return
}
defer objectFile.Close()
log.Info().Str("bucket", bucket).Str("key", key).Msg("Downloading from S3")
log.Info().Str("bucket", bucket).Str("key", objectKey).Msg("Downloading from S3")
downloader := manager.NewDownloader(client)
_, err = downloader.Download(context.TODO(), file, &s3.GetObjectInput{
_, err = downloader.Download(context.TODO(), objectFile, &s3.GetObjectInput{
Bucket: aws.String(bucket),
Key: aws.String(key),
Key: aws.String(objectKey),
})
if err != nil {
return
@ -340,27 +361,11 @@ func downloadTarFromS3(s3Url string) (tarPath string, err error) {
}
tarPath, err = tarDirectory(tempDirPath)
} else {
var file *os.File
file, err = os.CreateTemp(os.TempDir(), filepath.Base(key))
if err != nil {
return
}
log.Info().Str("bucket", bucket).Str("key", key).Msg("Downloading from S3")
downloader := manager.NewDownloader(client)
_, err = downloader.Download(context.TODO(), file, &s3.GetObjectInput{
Bucket: aws.String(bucket),
Key: aws.String(key),
})
if err != nil {
return
}
tarPath = file.Name()
return
}
tarPath = file.Name()
return
}