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upload.go
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upload.go
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// Copyright (c) 2022 The Parca Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package debuginfo
import (
"context"
"errors"
"fmt"
"os"
"time"
"github.com/cenkalti/backoff/v4"
"github.com/go-kit/log"
"github.com/go-kit/log/level"
"github.com/hashicorp/go-multierror"
"github.com/parca-dev/parca/pkg/debuginfo"
)
// Uploader uploads debug information to the Parca server.
type Uploader struct {
logger log.Logger
client Client
}
// NewUploader creates a new Uploader.
func NewUploader(logger log.Logger, client Client) *Uploader {
return &Uploader{
logger: log.With(logger, "component", "uploader"),
client: client,
}
}
// UploadAll uploads all debug information to the Parca server.
func (u *Uploader) UploadAll(ctx context.Context, dbgInfoFilePaths map[string]string) error {
var result *multierror.Error
for buildID, filePath := range dbgInfoFilePaths {
if filePath == "" {
continue
}
if err := u.Upload(ctx, buildID, filePath); err != nil {
level.Warn(u.logger).Log(
"msg", "failed to upload debug information",
"buildid", buildID, "file", filePath, "err", err,
)
result = multierror.Append(result, err)
continue
}
level.Debug(u.logger).Log(
"msg", "debug information uploaded successfully",
"buildid", buildID, "file", filePath,
)
}
return result.ErrorOrNil()
}
// Upload uploads the debug information to the Parca server.
func (u *Uploader) Upload(ctx context.Context, buildID, filePath string) error {
select {
case <-ctx.Done():
return ctx.Err()
default:
}
f, err := os.Open(filePath)
if err != nil {
return fmt.Errorf("failed to open temp file for debug information: %w", err)
}
expBackOff := backoff.NewExponentialBackOff()
expBackOff.InitialInterval = time.Second
expBackOff.MaxElapsedTime = time.Minute
err = backoff.Retry(func() error {
if _, err := u.client.Upload(ctx, buildID, f); err != nil {
if errors.Is(err, debuginfo.ErrDebugInfoAlreadyExists) {
// No need to retry.
return backoff.Permanent(err)
}
level.Debug(u.logger).Log(
"msg", "failed to upload debug information",
"buildid", buildID,
"path", filePath,
"retry", expBackOff.NextBackOff(),
"err", err,
)
}
return err
}, expBackOff)
if err != nil {
return fmt.Errorf("failed to upload debug information: %w", err)
}
return nil
}