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volume.go
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volume.go
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// Copyright 2017 tsuru authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package swarm
import (
"strings"
"github.com/docker/docker/api/types/mount"
"github.com/pkg/errors"
"github.com/tsuru/tsuru/provision"
"github.com/tsuru/tsuru/volume"
)
type volumeOptions struct {
Driver string
Opts []string
}
func mountsForApp(app provision.App) ([]mount.Mount, error) {
volumes, err := volume.ListByApp(app.GetName())
if err != nil {
return nil, errors.WithStack(err)
}
var mounts []mount.Mount
for _, v := range volumes {
m, err := mountsForVolume(v, app)
if err != nil {
return nil, err
}
mounts = append(mounts, m...)
}
return mounts, nil
}
func mountsForVolume(v volume.Volume, app provision.App) ([]mount.Mount, error) {
var volumeOpts volumeOptions
err := v.UnmarshalPlan(&volumeOpts)
if err != nil {
return nil, errors.WithStack(err)
}
optsMap := make(map[string]string)
for k, v := range v.Opts {
optsMap[k] = v
}
for _, o := range volumeOpts.Opts {
parts := strings.SplitN(o, "=", 2)
if len(parts) != 2 {
return nil, errors.New("driver option must be on the form of key=value")
}
optsMap[parts[0]] = parts[1]
}
binds, err := v.LoadBindsForApp(app.GetName())
if err != nil {
return nil, errors.WithStack(err)
}
labelSet := provision.VolumeLabels(provision.VolumeLabelsOpts{
Name: v.Name,
Provisioner: provisionerName,
Prefix: tsuruLabelPrefix,
Pool: v.Pool,
Plan: v.Plan.Name,
})
var mounts []mount.Mount
for _, b := range binds {
m := mount.Mount{
Source: v.Name,
Target: b.ID.MountPoint,
ReadOnly: b.ReadOnly,
Type: mount.TypeVolume,
VolumeOptions: &mount.VolumeOptions{
Labels: labelSet.ToLabels(),
DriverConfig: &mount.Driver{
Name: volumeOpts.Driver,
Options: optsMap,
},
},
}
mounts = append(mounts, m)
}
return mounts, nil
}