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* add local attach support * use os.Mode* for backwards compatability * fix incorrect driver naming for attach local * fix some incorrect pointer references in log messages * log message tweaks for attach-local
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| package api | ||
|
|
||
| import ( | ||
| "os" | ||
|
|
||
| "github.com/kraken-hpc/imageapi/models" | ||
| "github.com/sirupsen/logrus" | ||
| ) | ||
|
|
||
| func init() { | ||
| AttachDrivers[models.AttachKindLocal] = &AttachDriverLocal{} | ||
| } | ||
|
|
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| type AttachDriverLocal struct { | ||
| log *logrus.Entry | ||
| } | ||
|
|
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| func (a *AttachDriverLocal) Init(log *logrus.Entry) { | ||
| a.log = log | ||
| a.log.Trace("initialized") | ||
| } | ||
|
|
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| func (a *AttachDriverLocal) Attach(att *Attach) (ret *Attach, err error) { | ||
| // sanity check | ||
| l := a.log.WithField("operation", "attach") | ||
| if att.Local == nil { | ||
| l.Trace("attempted to attach local with no local definition") | ||
| return nil, ERRINVALDAT | ||
| } | ||
| l = l.WithField("path", *att.Local.Path) | ||
|
|
||
| finfo, err := os.Stat(*att.Local.Path) | ||
| if err != nil { | ||
| l.WithError(err).Debug("failed to stat device file") | ||
| return nil, ERRFAIL | ||
| } | ||
|
|
||
| if finfo.Mode()&os.ModeDevice == 0 { | ||
| l.Trace("path is not a device file") | ||
| return nil, ERRINVALDAT | ||
| } | ||
|
|
||
| if finfo.Mode()&os.ModeCharDevice != 0 { | ||
| l.Trace("path points to character device") | ||
| return nil, ERRINVALDAT | ||
| } | ||
| att.DeviceFile = *att.Local.Path | ||
|
|
||
| l.Info("successfully attached") | ||
| return att, nil | ||
| } | ||
|
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| func (a *AttachDriverLocal) Detach(att *Attach) (ret *Attach, err error) { | ||
| // this is a dummy operation | ||
| l := a.log.WithFields(logrus.Fields{ | ||
| "operation": "detach", | ||
| "id": att.ID, | ||
| "path": *att.Local.Path, | ||
| }) | ||
| l.Info("successfully detached") | ||
| return att, nil | ||
| } |
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