62 lines
1.8 KiB
Go
62 lines
1.8 KiB
Go
// Copyright 2023 Woodpecker Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package encryption
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import (
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"fmt"
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"github.com/fsnotify/fsnotify"
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"github.com/rs/zerolog/log"
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)
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// Watch keyset file events to detect key rotations and hot reload keys.
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func (svc *tinkEncryptionService) initFileWatcher() error {
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watcher, err := fsnotify.NewWatcher()
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if err != nil {
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return fmt.Errorf(errTemplateTinkFailedSubscribeKeysetFileChanges, err)
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}
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err = watcher.Add(svc.keysetFilePath)
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if err != nil {
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return fmt.Errorf(errTemplateTinkFailedSubscribeKeysetFileChanges, err)
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}
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svc.keysetFileWatcher = watcher
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go svc.handleFileEvents()
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return nil
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}
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func (svc *tinkEncryptionService) handleFileEvents() {
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for {
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select {
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case event, ok := <-svc.keysetFileWatcher.Events:
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if !ok {
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log.Fatal().Msg(errMessageTinkKeysetFileWatchFailed) //nolint:forbidigo
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}
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if (event.Op == fsnotify.Write) || (event.Op == fsnotify.Create) {
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log.Warn().Msgf(logTemplateTinkKeysetFileChanged, event.Name)
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err := svc.rotate()
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if err != nil {
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log.Fatal().Err(err).Msg(errMessageFailedRotatingEncryption) //nolint:forbidigo
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}
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return
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}
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case err, ok := <-svc.keysetFileWatcher.Errors:
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if !ok {
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log.Fatal().Err(err).Msg(errMessageTinkKeysetFileWatchFailed) //nolint:forbidigo
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}
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}
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}
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}
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