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// Copyright (C) 2019-2023 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package logging
import (
"archive/tar"
"compress/gzip"
"fmt"
"io"
"os"
"path"
"path/filepath"
"sync"
"github.com/algorand/go-algorand/util/s3"
)
// CollectAndUploadData combines all of the data files that we want packaged up and uploaded
// for analysis and uploads the tarball to S3.
// dataDir: the node's data directory containing the files of interest
// bundleFilename: the name of the resulting tarball on S3
// targetFolder: the subfolder in the s3 bucket to store the file
func CollectAndUploadData(dataDir string, bundleFilename string, targetFolder string) <-chan error {
errorChannel := make(chan error, 1)
pipeReader, pipeWriter := io.Pipe()
go func() {
// Close the error channel to signal completion
defer close(errorChannel)
bucket := s3.GetS3UploadBucket()
s3Session, err := s3.MakeS3SessionForUploadWithBucket(bucket)
if err != nil {
errorChannel <- err
return
}
wg := sync.WaitGroup{}
wg.Add(1)
targetFilename := filepath.Join(targetFolder, path.Base(bundleFilename))
go func() {
fmt.Printf("Uploading to s3://%s/%s\n", bucket, targetFilename)
err = s3Session.UploadFileStream(targetFilename, pipeReader)
if err != nil {
errorChannel <- err
}
pipeReader.Close()
wg.Done()
}()
err = collectAndWrite(dataDir, pipeWriter)
if err != nil {
errorChannel <- err
}
// Close writer (our source) so reader knows there's no more data
pipeWriter.Close()
// Now wait for reader (S3 uploader) to finish uploading
wg.Wait()
}()
return errorChannel
}
func collectAndWrite(datadir string, writer io.Writer) error {
// set up the gzip writer
gw := gzip.NewWriter(writer)
defer gw.Close()
tw := tar.NewWriter(gw)
defer tw.Close()
logPaths, err := filepath.Glob(path.Join(datadir, "node*.log"))
if err != nil {
return err
}
paths := make([]string, 0)
paths = append(paths, logPaths...)
logPaths, err = filepath.Glob(path.Join(datadir, "algod-*.log"))
if err != nil {
return err
}
paths = append(paths, logPaths...)
logPaths, err = filepath.Glob(path.Join(datadir, "host*.log"))
if err != nil {
return err
}
paths = append(paths, logPaths...)
cadaverPaths, err := filepath.Glob(path.Join(datadir, "agreement.cdv*"))
if err != nil {
return err
}
paths = append(paths, cadaverPaths...)
// add each file as needed into the current tar archive
for i := range paths {
if err := addFile(tw, paths[i]); err != nil {
return err
}
}
return nil
}
func addFile(tw *tar.Writer, filePath string) error {
file, err := os.Open(filePath)
if err != nil {
return err
}
defer file.Close()
if stat, err := file.Stat(); err == nil {
// now create the header as needed for this file within the tarball
header := new(tar.Header)
_, header.Name = filepath.Split(filePath)
header.Size = stat.Size()
header.Mode = int64(stat.Mode())
header.ModTime = stat.ModTime()
// write the header to the tarball archive
if err := tw.WriteHeader(header); err != nil {
return err
}
// copy the file data to the tarball
if _, err := io.CopyN(tw, file, stat.Size()); err != nil {
return err
}
}
return nil
}
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