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d3eca4451d
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>
48 lines
1.3 KiB
Go
48 lines
1.3 KiB
Go
package daemon
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import (
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"strings"
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"github.com/docker/docker/container"
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derr "github.com/docker/docker/errors"
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volumestore "github.com/docker/docker/volume/store"
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)
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func (daemon *Daemon) prepareMountPoints(container *container.Container) error {
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for _, config := range container.MountPoints {
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if len(config.Driver) > 0 {
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v, err := daemon.volumes.GetWithRef(config.Name, config.Driver, container.ID)
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if err != nil {
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return err
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}
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config.Volume = v
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}
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}
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return nil
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}
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func (daemon *Daemon) removeMountPoints(container *container.Container, rm bool) error {
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var rmErrors []string
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for _, m := range container.MountPoints {
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if m.Volume == nil {
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continue
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}
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daemon.volumes.Dereference(m.Volume, container.ID)
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if rm {
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err := daemon.volumes.Remove(m.Volume)
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// Ignore volume in use errors because having this
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// volume being referenced by other container is
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// not an error, but an implementation detail.
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// This prevents docker from logging "ERROR: Volume in use"
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// where there is another container using the volume.
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if err != nil && !volumestore.IsInUse(err) {
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rmErrors = append(rmErrors, err.Error())
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}
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}
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}
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if len(rmErrors) > 0 {
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return derr.ErrorCodeRemovingVolume.WithArgs(strings.Join(rmErrors, "\n"))
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}
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return nil
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}
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