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[TESTING] rbd-group-snapshots testing tool
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,285 @@ | ||
| package main | ||
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| import ( | ||
| "fmt" | ||
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| "github.com/ceph/go-ceph/rados" | ||
| "github.com/ceph/go-ceph/rbd" | ||
| ) | ||
|
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| var ( | ||
| imageNames = []string{ | ||
| "first-volume", | ||
| "second-volume", | ||
| } | ||
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| restoreName = "restored-image" | ||
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| pool = "ocs-storagecluster-cephblockpool" | ||
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| group = "all-the-volumes" | ||
| groupSnap = "all-the-snapshots" | ||
| ) | ||
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| type rbdGroupTest struct { | ||
| conn *rados.Conn | ||
| ioctx *rados.IOContext | ||
| } | ||
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| func main() { | ||
| rgt := &rbdGroupTest{} | ||
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| rgt.connect() | ||
| defer rgt.conn.Shutdown() | ||
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| rgt.createImages() | ||
| defer rgt.removeImages() | ||
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| rgt.createGroup() | ||
| defer rgt.removeGroup() | ||
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| rgt.addImagesToGroup() | ||
| defer rgt.removeImagesFromGroup() | ||
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| rgt.createGroupSnapshot() | ||
| defer rgt.removeGroupSnapshot() | ||
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| fmt.Println("images are still in the group") | ||
| rgt.listSnapshots() | ||
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| rgt.removeImagesFromGroup() | ||
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| fmt.Println("images have been removed from the group") | ||
| rgt.listSnapshots() | ||
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| rgt.removeGroup() // fails as there is still a group snapshot? | ||
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| fmt.Println("the group has been removed - expected to fail") | ||
| rgt.listSnapshots() | ||
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| fmt.Println("the group snapshot has been removed") | ||
| rgt.removeGroupSnapshot() | ||
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| rgt.listSnapshots() | ||
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| // rgt.restoreFromSnapshot() | ||
| // defer rgt.removeRestoredImage() | ||
| } | ||
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| func (rgt *rbdGroupTest) connect() { | ||
| conn, err := rados.NewConn() | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
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| err = conn.ReadDefaultConfigFile() | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
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| err = conn.Connect() | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
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| rgt.conn = conn | ||
|
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| ioctx, err := conn.OpenIOContext(pool) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
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| rgt.ioctx = ioctx | ||
| } | ||
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| func (rgt *rbdGroupTest) createImages() { | ||
| for _, name := range imageNames { | ||
| _, err := rbd.Create(rgt.ioctx, name, uint64(1<<22), 22) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| } | ||
| } | ||
|
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| func (rgt *rbdGroupTest) removeImages() { | ||
| fmt.Println("removing the images") | ||
|
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| for _, name := range imageNames { | ||
| err := rbd.RemoveImage(rgt.ioctx, name) | ||
| if err != nil { | ||
| fmt.Printf("failed to remove image %q: %v\n", name, err) | ||
| } | ||
| } | ||
| } | ||
|
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| func (rgt *rbdGroupTest) createGroup() { | ||
| err := rbd.GroupCreate(rgt.ioctx, group) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| } | ||
|
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| func (rgt *rbdGroupTest) removeGroup() { | ||
| fmt.Println("removing the group") | ||
|
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| err := rbd.GroupRemove(rgt.ioctx, group) | ||
| if err != nil { | ||
| fmt.Printf("failed to remove group %q: %v\n", group, err) | ||
| } | ||
| } | ||
|
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| func (rgt *rbdGroupTest) addImagesToGroup() { | ||
| for _, name := range imageNames { | ||
| err := rbd.GroupImageAdd(rgt.ioctx, group, rgt.ioctx, name) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| } | ||
| } | ||
|
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| func (rgt *rbdGroupTest) removeImagesFromGroup() { | ||
| fmt.Println("removing images from the group") | ||
|
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| for _, name := range imageNames { | ||
| err := rbd.GroupImageRemove(rgt.ioctx, group, rgt.ioctx, name) | ||
| if err != nil { | ||
| fmt.Printf("failed to remove image %q from group %q: %v\n", name, group, err) | ||
| } | ||
| } | ||
| } | ||
|
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| func (rgt *rbdGroupTest) createGroupSnapshot() { | ||
| err := rbd.GroupSnapCreate(rgt.ioctx, group, groupSnap) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| } | ||
|
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| func (rgt *rbdGroupTest) removeGroupSnapshot() { | ||
| fmt.Println("removing the group snapshot") | ||
|
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| err := rbd.GroupSnapRemove(rgt.ioctx, group, groupSnap) | ||
| if err != nil { | ||
| fmt.Printf("failed to remove group snapshot %q: %v\n", groupSnap, err) | ||
| } | ||
| } | ||
|
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| func (rgt *rbdGroupTest) listSnapshots() { | ||
| img, err := rbd.OpenImage(rgt.ioctx, imageNames[0], rbd.NoSnapshot) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| defer img.Close() | ||
|
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| snaps, err := img.GetSnapshotNames() | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
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| fmt.Printf("listing %d snapshots for image %q\n", len(snaps), imageNames[0]) | ||
| for _, snap := range snaps { | ||
| fmt.Printf("Snapshot: %+v\n", snap) | ||
| } | ||
| } | ||
|
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| func (rgt *rbdGroupTest) restoreFromSnapshot() { | ||
| img, err := rbd.OpenImage(rgt.ioctx, imageNames[0], rbd.NoSnapshot) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| defer img.Close() | ||
|
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| snaps, err := img.GetSnapshotNames() | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
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| options := rbd.NewRbdImageOptions() | ||
| defer options.Destroy() | ||
| err = options.SetUint64(rbd.ImageOptionOrder, 22) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| // err = options.SetUint64(rbd.ImageOptionFeatures, 1) | ||
| // if err != nil { | ||
| // panic(err) | ||
| // } | ||
|
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| /* | ||
| fmt.Printf("restoring image %q from parent %q at snapshot %q\n", restoreName, imageNames[0], snaps[0].Name) | ||
| snap := img.GetSnapshot(snaps[0].Name) | ||
| err = snap.Protect() | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| defer snap.Unprotect() | ||
| err = rbd.CloneFromImage(img, snaps[0].Name, rgt.ioctx, restoreName, options) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| */ | ||
|
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| /* | ||
| // alternative to the above -- segfaults, needs a snapshot | ||
| fmt.Printf("restoring image %q from parent %q without a snapshot\n", restoreName, imageNames[0]) | ||
| err = rbd.CloneFromImage(img, rbd.NoSnapshot, rgt.ioctx, restoreName, options) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| defer rbd.RemoveImage(rgt.ioctx, restoreName) | ||
| restored, err := rbd.OpenImage(rgt.ioctx, restoreName, rbd.NoSnapshot) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| defer restored.Close() | ||
| //err = restored.SetSnapshot(snaps[0].Name) | ||
| err = restored.SetSnapByID(snaps[0].Id) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| */ | ||
|
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| // alternative to the above | ||
| snapname := "tmp-snap" | ||
| snap, err := img.CreateSnapshot(snapname) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| defer snap.Remove() | ||
|
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| err = snap.Protect() | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| defer snap.Unprotect() | ||
|
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| fmt.Printf("restoring image %q from parent %q at snapshot %q\n", restoreName, imageNames[0], snapname) | ||
| err = rbd.CloneFromImage(img, snapname, rgt.ioctx, restoreName, options) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| defer rbd.RemoveImage(rgt.ioctx, restoreName) | ||
|
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| restored, err := rbd.OpenImage(rgt.ioctx, restoreName, rbd.NoSnapshot) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| defer restored.Close() | ||
|
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| err = restored.SetSnapByID(snaps[0].Id) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| } | ||
|
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| func (rgt *rbdGroupTest) removeRestoredImage() { | ||
| fmt.Println("removing the restored image") | ||
|
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| err := rbd.RemoveImage(rgt.ioctx, restoreName) | ||
| if err != nil { | ||
| fmt.Printf("failed to remove image %q: %v\n", restoreName, err) | ||
| } | ||
| } |