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rbd: discard flattening error if the image doesnt have parent

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if the image is created without flattening image-feature
the image will get few image-features by default, deep-flatten
is one of them. if the image doesnot have any parent
the rbd image flattening will fail, This commit discards
error message if the image doesnt have any parent.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
This commit is contained in:
Madhu Rajanna 2020-08-04 14:12:16 +05:30 committed by mergify[bot]
parent 3c6149b86e
commit d4186a6880
1 changed files with 45 additions and 5 deletions
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48
internal/rbd/rbd_util.go
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@ -458,6 +458,11 @@ func (rv *rbdVolume) flattenRbdImage(ctx context.Context, cr *util.Credentials,
supported, err := addRbdManagerTask(ctx, rv, args) supported, err := addRbdManagerTask(ctx, rv, args)
if supported { if supported {
if err != nil { if err != nil {
// discard flattening error if the image doesnot have any parent
rbdFlattenNoParent := fmt.Sprintf("Image %s/%s does not have a parent", rv.Pool, rv.RbdImageName)
if strings.Contains(err.Error(), rbdFlattenNoParent) {
return nil
}
klog.Errorf(util.Log(ctx, "failed to add task flatten for %s : %v"), rv, err) klog.Errorf(util.Log(ctx, "failed to add task flatten for %s : %v"), rv, err)
return err return err
} }
@ -472,16 +477,51 @@ func (rv *rbdVolume) flattenRbdImage(ctx context.Context, cr *util.Credentials,
if err != nil { if err != nil {
return err return err
} }
err := rv.flatten()
if err != nil {
klog.Errorf(util.Log(ctx, "rbd failed to flatten image %s %s: %v"), rv.Pool, rv.RbdImageName, err)
return err
}
}
}
}
return nil
}
func (rv *rbdVolume) getParentName() (string, error) {
rbdImage, err := rv.open()
if err != nil {
return "", err
}
defer rbdImage.Close()
parentPool := make([]byte, 128)
parentName := make([]byte, 128)
parentSnapname := make([]byte, 128)
err = rbdImage.GetParentInfo(parentPool, parentName, parentSnapname)
if err != nil {
return "", err
}
return string(parentName), nil
}
func (rv *rbdVolume) flatten() error {
rbdImage, err := rv.open() rbdImage, err := rv.open()
if err != nil { if err != nil {
return err return err
} }
defer rbdImage.Close() defer rbdImage.Close()
if err = rbdImage.Flatten(); err != nil {
klog.Errorf(util.Log(ctx, "rbd failed to flatten image %s %s: %v"), rv.Pool, rv.RbdImageName, err) err = rbdImage.Flatten()
return err if err != nil {
} // rbd image flatten will fail if the rbd image does not have a parent
parent, pErr := rv.getParentName()
if pErr != nil {
return util.JoinErrors(err, pErr)
} }
if parent == "" {
return nil
} }
} }
return nil return nil