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moby--moby/api/server/router/volume/volume_routes.go
Brian Goff d3eca4451d Move responsibility of ls/inspect to volume driver
Makes `docker volume ls` and `docker volume inspect` ask the volume
drivers rather than only using what is cached locally.

Previously in order to use a volume from an external driver, one would
either have to use `docker volume create` or have a container that is
already using that volume for it to be visible to the other volume
API's.

For keeping uniqueness of volume names in the daemon, names are bound to
a driver on a first come first serve basis. If two drivers have a volume
with the same name, the first one is chosen, and a warning is logged
about the second one.

Adds 2 new methods to the plugin API, `List` and `Get`.
If a plugin does not implement these endpoints, a user will not be able
to find the specified volumes as well requests go through the drivers.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
2016-01-05 16:28:38 -05:00

66 lines
1.8 KiB
Go

package volume
import (
"encoding/json"
"net/http"
"github.com/docker/docker/api/server/httputils"
"github.com/docker/docker/api/types"
"golang.org/x/net/context"
)
func (v *volumeRouter) getVolumesList(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
volumes, warnings, err := v.backend.Volumes(r.Form.Get("filters"))
if err != nil {
return err
}
return httputils.WriteJSON(w, http.StatusOK, &types.VolumesListResponse{Volumes: volumes, Warnings: warnings})
}
func (v *volumeRouter) getVolumeByName(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
volume, err := v.backend.VolumeInspect(vars["name"])
if err != nil {
return err
}
return httputils.WriteJSON(w, http.StatusOK, volume)
}
func (v *volumeRouter) postVolumesCreate(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
if err := httputils.CheckForJSON(r); err != nil {
return err
}
var req types.VolumeCreateRequest
if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
return err
}
volume, err := v.backend.VolumeCreate(req.Name, req.Driver, req.DriverOpts)
if err != nil {
return err
}
return httputils.WriteJSON(w, http.StatusCreated, volume)
}
func (v *volumeRouter) deleteVolumes(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
if err := v.backend.VolumeRm(vars["name"]); err != nil {
return err
}
w.WriteHeader(http.StatusNoContent)
return nil
}