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moby--moby/daemon/graphdriver/plugin.go
Daniel Nephin 62c1f0ef41 Add deadcode linter
Signed-off-by: Daniel Nephin <dnephin@docker.com>
2017-08-21 18:18:50 -04:00

33 lines
997 B
Go

package graphdriver
import (
"fmt"
"path/filepath"
"github.com/docker/docker/pkg/plugingetter"
"github.com/docker/docker/plugin/v2"
)
func lookupPlugin(name string, pg plugingetter.PluginGetter, config Options) (Driver, error) {
if !config.ExperimentalEnabled {
return nil, fmt.Errorf("graphdriver plugins are only supported with experimental mode")
}
pl, err := pg.Get(name, "GraphDriver", plugingetter.Acquire)
if err != nil {
return nil, fmt.Errorf("Error looking up graphdriver plugin %s: %v", name, err)
}
return newPluginDriver(name, pl, config)
}
func newPluginDriver(name string, pl plugingetter.CompatPlugin, config Options) (Driver, error) {
home := config.Root
if !pl.IsV1() {
if p, ok := pl.(*v2.Plugin); ok {
if p.PropagatedMount != "" {
home = p.PluginObj.Config.PropagatedMount
}
}
}
proxy := &graphDriverProxy{name, pl, Capabilities{}}
return proxy, proxy.Init(filepath.Join(home, name), config.DriverOptions, config.UIDMaps, config.GIDMaps)
}