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65 lines
1.9 KiB
65 lines
1.9 KiB
package s3api
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import (
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"github.com/seaweedfs/seaweedfs/weed/filer"
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"github.com/seaweedfs/seaweedfs/weed/glog"
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"github.com/seaweedfs/seaweedfs/weed/pb"
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"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
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"github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants"
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"github.com/seaweedfs/seaweedfs/weed/util"
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)
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func (s3a *S3ApiServer) subscribeMetaEvents(clientName string, prefix string, lastTsNs int64) {
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processEventFn := func(resp *filer_pb.SubscribeMetadataResponse) error {
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message := resp.EventNotification
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if message.NewEntry == nil {
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return nil
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}
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dir := resp.Directory
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if message.NewParentPath != "" {
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dir = message.NewParentPath
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}
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fileName := message.NewEntry.Name
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content := message.NewEntry.Content
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_ = s3a.onIamConfigUpdate(dir, fileName, content)
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_ = s3a.onCircuitBreakerConfigUpdate(dir, fileName, content)
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return nil
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}
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var clientEpoch int32
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util.RetryForever("followIamChanges", func() error {
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clientEpoch++
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return pb.WithFilerClientFollowMetadata(s3a, clientName, s3a.randomClientId, clientEpoch, prefix, &lastTsNs, 0, 0, processEventFn, pb.FatalOnError)
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}, func(err error) bool {
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glog.V(0).Infof("iam follow metadata changes: %v", err)
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return true
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})
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}
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//reload iam config
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func (s3a *S3ApiServer) onIamConfigUpdate(dir, filename string, content []byte) error {
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if dir == filer.IamConfigDirecotry && filename == filer.IamIdentityFile {
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if err := s3a.iam.LoadS3ApiConfigurationFromBytes(content); err != nil {
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return err
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}
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glog.V(0).Infof("updated %s/%s", dir, filename)
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}
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return nil
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}
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//reload circuit breaker config
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func (s3a *S3ApiServer) onCircuitBreakerConfigUpdate(dir, filename string, content []byte) error {
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if dir == s3_constants.CircuitBreakerConfigDir && filename == s3_constants.CircuitBreakerConfigFile {
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if err := s3a.cb.LoadS3ApiConfigurationFromBytes(content); err != nil {
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return err
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}
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glog.V(0).Infof("updated %s/%s", dir, filename)
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}
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return nil
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}
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