func unmountAllVols() {
for _, v := range VolData.Volumes {
if v.mntCount > 0 {
if err := revelo.Unmount(v.MntDir); err != nil {
log.Errorf("Cannot unmount vol: %v, error: %v", v.DvName, err)
} else {
log.Errorf("Unmounted vol: %v", v.DvName)
}
}
}
}
func handleSignals(mntDir string) {
sigConn := make(chan os.Signal, 10)
signal.Notify(sigConn, os.Interrupt)
signal.Notify(sigConn, syscall.SIGTERM)
signal.Notify(sigConn, syscall.SIGUSR1)
signal.Notify(sigConn, syscall.SIGUSR2)
go func() {
for {
sig := <-sigConn
if sig == syscall.SIGUSR1 {
old := log.GetLevel()
new := old + 1
if new > log.DebugLevel {
new = log.DebugLevel
}
if new != old {
log.SetLevel(new)
log.WithFields(log.Fields{"old": old, "new": new}).Error("Increased logging")
}
} else if sig == syscall.SIGUSR2 {
old := log.GetLevel()
new := old - 1
if new < log.FatalLevel {
new = log.FatalLevel
}
if new != old {
log.WithFields(log.Fields{"old": old, "new": new}).Error("Decreased logging")
log.SetLevel(new)
}
} else {
log.Error("Interrupted... exiting")
log.Infof("Unmounting %s ... ", mntDir)
revelo.Unmount(mntDir)
os.Exit(1)
}
}
}()
}
func UnmountHandler(req *DockerRequest) *DockerResponse {
log.WithFields(log.Fields{"Req": req}).Debug("dv: UNmount Handler")
VolData.lock.RLock()
v, ok := VolData.Volumes[req.Name]
VolData.lock.RUnlock()
if !ok {
log.WithFields(log.Fields{"Volume": v}).Error("dv: UNmount: Volume not found")
return &DockerResponse{Err: " Volume " + req.Name + " not found"}
}
if v.mntCount <= 0 {
log.WithFields(log.Fields{"Volume": v}).Error("dv: UNmount: Volume not mounted")
return &DockerResponse{Err: " Volume " + v.DvName + " not mounted"}
}
v.mntCount--
VolData.lock.Lock()
VolData.Volumes[req.Name] = v
VolData.lock.Unlock()
if v.mntCount == 0 {
err := revelo.Unmount(v.MntDir)
if err != nil {
log.WithFields(log.Fields{"Volume": v, "Error": err}).Error("dv: UNmount: Cannot mount")
return &DockerResponse{Err: " Volume " + v.DvName + " cannot UNmount"}
}
}
log.Infof("UNMounted volume %v", v)
listAllVols()
return &DockerResponse{Err: ""}
}