func (client *clientImpl) FetchAndDeployInstance(pin common.Pin) error {
err := common.ValidatePin(pin)
if err != nil {
return err
}
// Use temp file for storing package file. Delete it when done.
var instance local.PackageInstance
f, err := client.deployer.TempFile(pin.InstanceID)
if err != nil {
return err
}
defer func() {
// Instance takes ownership of the file, no need to close it separately.
if instance == nil {
f.Close()
}
os.Remove(f.Name())
}()
// Fetch the package data to the provided storage.
err = client.FetchInstance(pin, f)
if err != nil {
return err
}
// Open the instance, verify the instance ID.
instance, err = local.OpenInstance(f, pin.InstanceID)
if err != nil {
return err
}
defer instance.Close()
// Deploy it. 'defer' will take care of removing the temp file if needed.
_, err = client.deployer.DeployInstance(instance)
return err
}
