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moby--moby/client/volume_inspect.go

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package client // import "github.com/docker/docker/client"
import (
"bytes"
"encoding/json"
"io/ioutil"
"path"
"github.com/docker/docker/api/types"
"golang.org/x/net/context"
)
// VolumeInspect returns the information about a specific volume in the docker host.
func (cli *Client) VolumeInspect(ctx context.Context, volumeID string) (types.Volume, error) {
volume, _, err := cli.VolumeInspectWithRaw(ctx, volumeID)
return volume, err
}
// VolumeInspectWithRaw returns the information about a specific volume in the docker host and its raw representation
func (cli *Client) VolumeInspectWithRaw(ctx context.Context, volumeID string) (types.Volume, []byte, error) {
// The empty ID needs to be handled here because with an empty ID the
// request url will not contain a trailing / which calls the volume list API
// instead of volume inspect
if volumeID == "" {
return types.Volume{}, nil, objectNotFoundError{object: "volume", id: volumeID}
}
var volume types.Volume
resp, err := cli.get(ctx, path.Join("/volumes", volumeID), nil, nil)
if err != nil {
return volume, nil, wrapResponseError(err, resp, "volume", volumeID)
}
defer ensureReaderClosed(resp)
body, err := ioutil.ReadAll(resp.body)
if err != nil {
return volume, nil, err
}
rdr := bytes.NewReader(body)
err = json.NewDecoder(rdr).Decode(&volume)
return volume, body, err
}