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Reduce image pull race.

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Signed-off-by: Lantao Liu <lantaol@google.com>
This commit is contained in:
Lantao Liu 2017-10-13 05:17:43 +00:00
parent c66fd83eae
commit 09c2bfadd2
1 changed files with 5 additions and 5 deletions
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10
client.go
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@ -250,19 +250,19 @@ func (c *Client) Pull(ctx context.Context, ref string, opts ...RemoteOpt) (Image
}
is := c.ImageService()
if updated, err := is.Update(ctx, imgrec, "target"); err != nil {
if !errdefs.IsNotFound(err) {
if created, err := is.Create(ctx, imgrec); err != nil {
if !errdefs.IsAlreadyExists(err) {
return nil, err
}
created, err := is.Create(ctx, imgrec)
updated, err := is.Update(ctx, imgrec)
if err != nil {
return nil, err
}
imgrec = created
} else {
imgrec = updated
} else {
imgrec = created
}
img := &image{