update zfsnap behaviour
This commit is contained in:
shoopea
parent
a0cd2cdbcc
commit
6c3cd690de
87
backup.go
87
backup.go
@ -165,7 +165,7 @@ func (c *Config) Load() error {
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var b bytes.Buffer
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session.Stdout = &b
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err = session.Run("/usr/bin/uname -a")
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err = session.Run("/usr/sbin/zfsnap --version")
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if err != nil {
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if *debugFlag {
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log.Printf("Config.Load : client.NewSession(%s) : %s", k, err)
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@ -307,7 +307,7 @@ func (s *SSHConfig) getNextSnapshot(snapshot Snapshot) (Snapshot, error) {
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func (s *SSHConfig) getSnapshotList() error {
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if *debugFlag {
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log.Printf("SSHConfig.getSnapshotList : Start %s", s.name)
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log.Printf("SSHConfig.getSnapshotList : %s : Start", s.name)
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}
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if !s.logged {
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return fmt.Errorf("Client %s not logged in.", s.name)
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@ -316,7 +316,7 @@ func (s *SSHConfig) getSnapshotList() error {
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session, err := s.client.NewSession()
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if err != nil {
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if *debugFlag {
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log.Printf("SSHConfig.getSnapshotList : client.NewSession(%s) : %s", s.name, err)
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log.Printf("SSHConfig.getSnapshotList : %s : client.NewSession() : %s", s.name, err)
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}
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return err
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}
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@ -326,7 +326,7 @@ func (s *SSHConfig) getSnapshotList() error {
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err = session.Run("/usr/sbin/zfs list -H -t snapshot -o name")
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if err != nil {
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if *debugFlag {
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log.Printf("SSHConfig.getSnapshotList : session.Run(%s) : %s", s.name, err)
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log.Printf("SSHConfig.getSnapshotList : %s : session.Run() : %s", s.name, err)
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}
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return err
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}
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@ -340,7 +340,7 @@ func (s *SSHConfig) getSnapshotList() error {
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csvData, err := csvReader.ReadAll()
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if err != nil {
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if *debugFlag {
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log.Printf("SSHConfig.getSnapshotList : csvReader.ReadAll(%s) : %s", s.name, err)
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log.Printf("SSHConfig.getSnapshotList : %s : csvReader.ReadAll() : %s", s.name, err)
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}
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return err
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}
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@ -503,7 +503,7 @@ func (s *SSHConfig) createZFS(path string) error {
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func (a AppConfig) RunAppSchedule(schedule string) error {
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if *debugFlag {
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log.Printf("RunAppSchedule : Running %s(%s)", a.Name, schedule)
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log.Printf("RunAppSchedule(%s) : %s : Start", a.Name, schedule)
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}
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for _, src := range a.Sources {
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if !cfg.ssh[src.Box()].isZFS(src.Path()) {
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@ -514,7 +514,7 @@ func (a AppConfig) RunAppSchedule(schedule string) error {
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err := cfg.ssh[dest.Box()].createZFS(dest.Path() + "/" + src.Box() + "/" + src.Path())
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if err != nil {
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if *debugFlag {
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log.Printf("RunAppSchedule : Error creating %s on %s", dest.Path()+"/"+src.Box()+"/"+src.Path(), dest.Box())
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log.Printf("RunAppSchedule(%s) : %s : Error creating %s on %s", a.Name, schedule, dest.Path()+"/"+src.Box()+"/"+src.Path(), dest.Box())
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}
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return err
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}
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@ -527,7 +527,7 @@ func (a AppConfig) RunAppSchedule(schedule string) error {
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err := cfg.ssh[v.Box()].exec(v.Path())
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if err != nil {
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if *debugFlag {
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log.Printf("RunAppSchedule : Error executing %s", string(v))
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log.Printf("RunAppSchedule(%s) : %s : Error executing %s", a.Name, schedule, string(v))
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}
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return err
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}
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@ -536,19 +536,22 @@ func (a AppConfig) RunAppSchedule(schedule string) error {
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refreshSnapshot := make(map[string]bool)
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takeSnapshot := make(map[string]string)
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delSnapshot := make(map[string]string)
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for _, v := range a.Sources {
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takeSnapshot[v.Box()] = takeSnapshot[v.Box()] + " " + v.Path()
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refreshSnapshot[v.Box()] = true
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for _, v2 := range a.Destinations {
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delSnapshot[v2.Box()] = delSnapshot[v2.Box()] + " " + v2.Path() + "/" + v.Box() + "/" + v.Path()
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}
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}
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for k, v := range takeSnapshot {
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if *debugFlag {
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log.Printf("RunAppSchedule : taking %s snapshot on %s for%s", schedule, k, v)
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log.Printf("RunAppSchedule(%s) : %s : taking snapshot on %s for %s", a.Name, schedule, k, v)
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}
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err := cfg.ssh[k].exec("/usr/sbin/zfsnap snapshot -p '" + schedule + "-' -a " + cfg.Zfsnap[schedule] + v)
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err := cfg.ssh[k].exec("/usr/sbin/zfsnap snapshot -a " + cfg.Zfsnap[schedule] + v)
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if err != nil {
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if *debugFlag {
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log.Printf("RunAppSchedule : Error executing zfsnap on %s", k)
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log.Printf("RunAppSchedule(%s) : %s : Error executing zfsnap on %s", a.Name, schedule, k)
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}
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return err
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}
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@ -558,12 +561,12 @@ func (a AppConfig) RunAppSchedule(schedule string) error {
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}
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for k, _ := range refreshSnapshot {
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if *debugFlag {
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log.Printf("RunAppSchedule : refreshing snapshots for source %s", k)
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log.Printf("RunAppSchedule(%s) : %s : refreshing snapshots for source %s", a.Name, schedule, k)
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}
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err := cfg.ssh[k].getSnapshotList()
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if err != nil {
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if *debugFlag {
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log.Printf("RunAppSchedule : Error getting snapshots on %s", k)
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log.Printf("RunAppSchedule(%s) : %s : Error getting snapshots on %s", a.Name, schedule, k)
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}
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return err
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}
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@ -571,27 +574,27 @@ func (a AppConfig) RunAppSchedule(schedule string) error {
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for _, src := range a.Sources {
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for _, dest := range a.Destinations {
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if *debugFlag {
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log.Printf("RunAppSchedule : Sending snapshots from %s to %s", string(src), string(dest))
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log.Printf("RunAppSchedule(%s) : %s : Sending snapshots from %s to %s", a.Name, schedule, string(src), string(dest))
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}
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dLastSnapshot, err := cfg.ssh[dest.Box()].getLastSnapshot(dest.Path() + "/" + src.Box() + "/" + src.Path())
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if err != nil {
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if *debugFlag {
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log.Printf("RunAppSchedule : No snapshot for %s on %s", string(src), dest.Box())
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log.Printf("RunAppSchedule(%s) : %s : No snapshot for %s on %s", a.Name, schedule, string(src), dest.Box())
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}
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sFirstSnapshot, err := cfg.ssh[src.Box()].getFirstSnapshot(src.Path())
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if err != nil {
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if *debugFlag {
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log.Printf("RunAppSchedule : No snapshot for %s", string(src))
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log.Printf("RunAppSchedule(%s) : %s : No snapshot for %s", a.Name, schedule, string(src))
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}
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return err
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} else {
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}
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if *debugFlag {
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log.Printf("RunAppSchedule : Initializing snapshot on %s from %s", dest.Box(), string(sFirstSnapshot))
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log.Printf("RunAppSchedule(%s) : %s : Initializing snapshot on %s from %s", a.Name, schedule, dest.Box(), string(sFirstSnapshot))
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}
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err = cfg.ssh[dest.Box()].exec("/usr/bin/ssh root@" + src.Box() + " /sbin/zfs send " + string(sFirstSnapshot) + " | /sbin/zfs recv -F " + dest.Path() + "/" + src.Box() + "/" + src.Path())
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if err != nil {
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if *debugFlag {
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log.Printf("RunAppSchedule : Initializing snapshot on %s from %s failed (%s)", dest.Box(), string(sFirstSnapshot), err)
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log.Printf("RunAppSchedule(%s) : %s : Initializing snapshot on %s from %s failed (%s)", a.Name, schedule, dest.Box(), string(sFirstSnapshot), err)
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}
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return err
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}
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@ -601,23 +604,23 @@ func (a AppConfig) RunAppSchedule(schedule string) error {
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sCurrSnapshot = sNextSnapshot
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sNextSnapshot, err = cfg.ssh[src.Box()].getNextSnapshot(sNextSnapshot)
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if *debugFlag {
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log.Printf("RunAppSchedule : Sending incrementally %s to %s", string(sNextSnapshot), dest.Box())
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log.Printf("RunAppSchedule(%s) : %s : Sending incrementally %s to %s", a.Name, schedule, string(sNextSnapshot), dest.Box())
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}
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err = cfg.ssh[dest.Box()].exec("/usr/bin/ssh root@" + src.Box() + " /sbin/zfs send -I " + string(sCurrSnapshot) + " " + string(sNextSnapshot) + " | /sbin/zfs recv " + dest.Path() + "/" + src.Box() + "/" + src.Path())
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if err != nil {
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if *debugFlag {
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log.Printf("RunAppSchedule : Sending snapshot on %s from %s failed (%s)", dest.Box(), string(sNextSnapshot), err)
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log.Printf("RunAppSchedule(%s) : %s : Sending snapshot on %s from %s failed (%s)", a.Name, schedule, dest.Box(), string(sNextSnapshot), err)
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}
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return err
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}
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}
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if *debugFlag {
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log.Printf("RunAppSchedule : All snapshots sent for %s", string(src))
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}
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log.Printf("RunAppSchedule(%s) : %s : All snapshots sent for %s", a.Name, schedule, string(src))
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}
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} else {
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if *debugFlag {
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log.Printf("RunAppSchedule : Last snapshot on %s is %s", dest.Box(), string(dLastSnapshot))
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log.Printf("RunAppSchedule(%s) : %s : Last snapshot on %s is %s", a.Name, schedule, dest.Box(), string(dLastSnapshot))
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}
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var sCurrSnapshot Snapshot
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sNextSnapshot := Snapshot(string(dLastSnapshot)[len(string(dest))+2:])
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@ -625,12 +628,12 @@ func (a AppConfig) RunAppSchedule(schedule string) error {
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sCurrSnapshot = sNextSnapshot
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sNextSnapshot, err = cfg.ssh[src.Box()].getNextSnapshot(sNextSnapshot)
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if *debugFlag {
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log.Printf("RunAppSchedule : Sending incrementally %s to %s", string(sNextSnapshot), dest.Box())
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log.Printf("RunAppSchedule(%s) : %s : Sending incrementally %s to %s", a.Name, schedule, string(sNextSnapshot), dest.Box())
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}
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err = cfg.ssh[dest.Box()].exec("/usr/bin/ssh root@" + src.Box() + " /sbin/zfs send -I " + string(sCurrSnapshot) + " " + string(sNextSnapshot) + " | /sbin/zfs recv " + dest.Path() + "/" + src.Box() + "/" + src.Path())
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if err != nil {
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if *debugFlag {
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log.Printf("RunAppSchedule : Sending snapshot on %s from %s failed (%s)", dest.Box(), string(sNextSnapshot), err)
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log.Printf("RunAppSchedule(%s) : %s : Sending snapshot on %s from %s failed (%s)", a.Name, schedule, dest.Box(), string(sNextSnapshot), err)
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}
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return err
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}
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@ -638,13 +641,37 @@ func (a AppConfig) RunAppSchedule(schedule string) error {
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}
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}
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}
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for k, v := range takeSnapshot {
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if *debugFlag {
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log.Printf("RunAppSchedule(%s) : %s : cleaning snapshot on %s for %s", a.Name, schedule, k, v)
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}
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err := cfg.ssh[k].exec("/usr/sbin/zfsnap destroy" + v)
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if err != nil {
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if *debugFlag {
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log.Printf("RunAppSchedule(%s) : %s : Error executing zfsnap on %s", a.Name, schedule, k)
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}
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return err
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}
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}
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for k, v := range delSnapshot {
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if *debugFlag {
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log.Printf("RunAppSchedule(%s) : %s : cleaning snapshot on %s for %s", a.Name, schedule, k, v)
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}
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err := cfg.ssh[k].exec("/usr/sbin/zfsnap destroy" + v)
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if err != nil {
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if *debugFlag {
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log.Printf("RunAppSchedule(%s) : %s : Error executing zfsnap on %s", a.Name, schedule, k)
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}
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return err
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}
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}
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for k, v := range a.After {
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re := regexp.MustCompile(k)
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if re.MatchString(schedule) {
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err := cfg.ssh[v.Box()].exec(v.Path())
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if err != nil {
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if *debugFlag {
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log.Printf("RunAppSchedule : Error executing %s on %s", v.Path(), v.Box())
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log.Printf("RunAppSchedule(%s) : %s : Error executing %s on %s", a.Name, schedule, v.Path(), v.Box())
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}
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return err
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}
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@ -687,7 +714,7 @@ func main() {
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//RunSchedule run all backup targets where schedule is registered
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func RunSchedule(schedule string) error {
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if *debugFlag {
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log.Printf("RunSchedule : Start %s", schedule)
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log.Printf("RunSchedule(%s) : Start", schedule)
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}
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if _, ok := cfg.Zfsnap[schedule]; !ok {
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return fmt.Errorf("No retention defined for %s schedule", schedule)
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@ -699,7 +726,7 @@ func RunSchedule(schedule string) error {
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err := app.RunAppSchedule(schedule)
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if err != nil {
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if *debugFlag {
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log.Printf("RunSchedule : Error running %s(%s)", app.Name, schedule)
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log.Printf("RunSchedule(%s) : Error running %s", schedule, app.Name)
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}
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return err
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}
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