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d63582c131
Currently the plugin initialization is too late for a loaded v2 plugin
to be usable as a graph driver.
This moves the initialization up before we create the graph driver.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit 020b051dfb)
Signed-off-by: Victor Vieux <victorvieux@gmail.com>
31 lines
1 KiB
Go
31 lines
1 KiB
Go
package graphdriver
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import (
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"fmt"
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"io"
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"path/filepath"
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"github.com/docker/docker/pkg/plugingetter"
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)
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type pluginClient interface {
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// Call calls the specified method with the specified arguments for the plugin.
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Call(string, interface{}, interface{}) error
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// Stream calls the specified method with the specified arguments for the plugin and returns the response IO stream
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Stream(string, interface{}) (io.ReadCloser, error)
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// SendFile calls the specified method, and passes through the IO stream
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SendFile(string, io.Reader, interface{}) error
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}
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func lookupPlugin(name, home string, opts []string, pg plugingetter.PluginGetter) (Driver, error) {
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pl, err := pg.Get(name, "GraphDriver", plugingetter.LOOKUP)
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if err != nil {
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return nil, fmt.Errorf("Error looking up graphdriver plugin %s: %v", name, err)
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}
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return newPluginDriver(name, home, opts, pl.Client())
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}
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func newPluginDriver(name, home string, opts []string, c pluginClient) (Driver, error) {
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proxy := &graphDriverProxy{name, c}
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return proxy, proxy.Init(filepath.Join(home, name), opts)
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}
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