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Move responsibility of ls/inspect to volume driver

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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>
This commit is contained in:
Brian Goff 2015-09-23 16:29:14 -04:00
parent 6c30931b06
commit d3eca4451d
30 changed files with 700 additions and 285 deletions
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2
errors/daemon.go
View file

@ -908,7 +908,7 @@ var (
// trying to create a volume that has existed using different driver.
ErrorVolumeNameTaken = errcode.Register(errGroup, errcode.ErrorDescriptor{
Value: "VOLUME_NAME_TAKEN",
Message: "A volume named %q already exists with the %q driver. Choose a different volume name.",
Message: "A volume named %s already exists. Choose a different volume name.",
Description: "An attempt to create a volume using a driver but the volume already exists with a different driver",
HTTPStatusCode: http.StatusInternalServerError,
})