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origin_api.go
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/
origin_api.go
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/***************************************************************
*
* Copyright (C) 2024, Pelican Project, Morgridge Institute for Research
*
* 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 origin
import (
"context"
"os"
"path/filepath"
"strings"
"time"
"github.com/pkg/errors"
log "github.com/sirupsen/logrus"
"golang.org/x/sync/errgroup"
"github.com/pelicanplatform/pelican/config"
"github.com/pelicanplatform/pelican/param"
"github.com/pelicanplatform/pelican/server_utils"
)
// Configure XrootD directory for both self-based and director-based file transfer tests
func ConfigureXrootdMonitoringDir() error {
pelicanMonitoringPath := filepath.Join(param.Origin_RunLocation.GetString(),
"export", "pelican", "monitoring")
uid, err := config.GetDaemonUID()
if err != nil {
return err
}
gid, err := config.GetDaemonGID()
if err != nil {
return err
}
username, err := config.GetDaemonUser()
if err != nil {
return err
}
err = config.MkdirAll(pelicanMonitoringPath, 0755, uid, gid)
if err != nil {
return errors.Wrapf(err, "Unable to create pelican file transfer monitoring directory %v",
pelicanMonitoringPath)
}
if err = os.Chown(pelicanMonitoringPath, uid, -1); err != nil {
return errors.Wrapf(err, "Unable to change ownership of pelican file transfer monitoring directory %v"+
" to desired daemon user %v", pelicanMonitoringPath, username)
}
return nil
}
// Remove tmp files under ${Origin_RunLocation}/export/pelican/monitoring
// from diector-based/self tests. There could be dangling files due to
// error in testing
func LaunchOriginFileTestMaintenance(ctx context.Context) {
monitoringDir := filepath.Join(param.Origin_RunLocation.GetString(), "export", "pelican", "monitoring")
server_utils.LaunchWatcherMaintenance(
ctx,
[]string{monitoringDir},
"director-based origin tests clean up",
1*time.Minute,
func(notifyEvent bool) error {
entries, err := os.ReadDir(monitoringDir)
dirPrevFile := ""
selfPrevFile := ""
if err != nil {
return err
}
for _, entry := range entries {
if !entry.IsDir() {
fn := entry.Name()
if strings.HasPrefix(fn, "director") {
// Rolling basis to remove the previous item and leave the last item,
// since the last item is the latest test file (by timestamp in the file name)
// and that os.ReadDir sorted file name in the directory
if dirPrevFile != "" {
err := os.Remove(filepath.Join(monitoringDir, dirPrevFile))
if err != nil {
return err
}
}
dirPrevFile = fn
} else if strings.HasPrefix(fn, "self") {
if selfPrevFile != "" {
err := os.Remove(filepath.Join(monitoringDir, fn))
if err != nil {
return err
}
}
selfPrevFile = fn
} else {
err := os.Remove(filepath.Join(monitoringDir, fn))
if err != nil {
return err
}
}
}
}
return nil
},
)
}
func ConfigOriginTTLCache(ctx context.Context, egrp *errgroup.Group) {
go registrationsStatus.Start()
egrp.Go(func() error {
<-ctx.Done()
log.Info("Gracefully stopping origin TTL cache eviction...")
registrationsStatus.DeleteAll()
registrationsStatus.Stop()
log.Info("Origin TTL cache eviction has been stopped")
return nil
})
}