// replicateImage replicates the given image through all nodes in the cluster.
func replicateImage(name string) error {
var buf safe.Buffer
if _, err := config.GetString("docker:registry"); err == nil {
pushOpts := docker.PushImageOptions{Name: name, OutputStream: &buf}
for i := 0; i < maxTry; i++ {
err = dockerCluster().PushImage(pushOpts, docker.AuthConfiguration{})
if err == nil {
buf.Reset()
break
}
log.Errorf("[docker] Failed to push image %q (%s): %s", name, err, buf.String())
buf.Reset()
}
if err != nil {
return err
}
pullOpts := docker.PullImageOptions{Repository: name, OutputStream: &buf}
for i := 0; i < maxTry; i++ {
err = dockerCluster().PullImage(pullOpts)
if err == nil {
break
}
buf.Reset()
}
if err != nil {
log.Errorf("[docker] Failed to replicate image %q through nodes (%s): %s", name, err, buf.String())
return err
}
}
return nil
}
