// CreateVolume creates a volume from parameters, including the policy to copy.
func CreateVolume(vr *VolumeRequest) (*Volume, error) {
if vr.Name == "" {
return nil, errored.Errorf("Volume name was empty").Combine(errors.InvalidVolume)
}
if vr.Policy == nil {
return nil, errored.Errorf("Policy for volume %q was nil", vr.Name).Combine(errors.InvalidVolume)
}
var mount string
if vr.Options != nil {
mount = vr.Options["mount"]
delete(vr.Options, "mount")
}
if err := merge.Opts(vr.Policy, vr.Options); err != nil {
return nil, err
}
if vr.Policy.DriverOptions == nil {
vr.Policy.DriverOptions = map[string]string{}
}
if err := vr.Policy.Validate(); err != nil {
return nil, err
}
vc := &Volume{
Backends: vr.Policy.Backends,
DriverOptions: vr.Policy.DriverOptions,
CreateOptions: vr.Policy.CreateOptions,
RuntimeOptions: vr.Policy.RuntimeOptions,
Unlocked: vr.Policy.Unlocked,
PolicyName: vr.Policy.Name,
VolumeName: vr.Name,
MountSource: mount,
}
if err := vc.Validate(); err != nil {
return nil, err
}
if vc.CreateOptions.FileSystem == "" {
vc.CreateOptions.FileSystem = DefaultFilesystem
}
return vc, nil
}
// CreateVolume sets the appropriate config metadata for a volume creation
// operation, and returns the Volume that was copied in.
func (c *Client) CreateVolume(rc *VolumeRequest) (*Volume, error) {
resp, err := c.GetPolicy(rc.Policy)
if err != nil {
return nil, err
}
var mount string
if rc.Options != nil {
mount = rc.Options["mount"]
delete(rc.Options, "mount")
}
if err := merge.Opts(resp, rc.Options); err != nil {
return nil, err
}
if resp.DriverOptions == nil {
resp.DriverOptions = map[string]string{}
}
if err := resp.Validate(); err != nil {
return nil, err
}
vc := &Volume{
Backends: resp.Backends,
DriverOptions: resp.DriverOptions,
CreateOptions: resp.CreateOptions,
RuntimeOptions: resp.RuntimeOptions,
Unlocked: resp.Unlocked,
PolicyName: rc.Policy,
VolumeName: rc.Name,
MountSource: mount,
}
if err := vc.Validate(); err != nil {
return nil, err
}
if vc.CreateOptions.FileSystem == "" {
vc.CreateOptions.FileSystem = defaultFilesystem
}
return vc, nil
}