func addHooks(c *container.Container, spec *specs.Spec) error {
prestart, err := loadHooks(prestartDir)
if err != nil {
return err
}
poststart, err := loadHooks(poststartDir)
if err != nil {
return err
}
poststop, err := loadHooks(poststopDir)
if err != nil {
return err
}
configPath, err := c.ConfigPath()
if err != nil {
return errors.Wrap(err, "config path")
}
hostConfigPath, err := c.HostConfigPath()
if err != nil {
return errors.Wrap(err, "host config path")
}
spec.Hooks.Prestart = appendHooksForContainer(configPath, hostConfigPath, c, prestart)
spec.Hooks.Poststart = appendHooksForContainer(configPath, hostConfigPath, c, poststart)
spec.Hooks.Poststop = appendHooksForContainer(configPath, hostConfigPath, c, poststop)
return nil
}
// verifyVolumesInfo ports volumes configured for the containers pre docker 1.7.
// It reads the container configuration and creates valid mount points for the old volumes.
func (daemon *Daemon) verifyVolumesInfo(container *container.Container) error {
// Inspect old structures only when we're upgrading from old versions
// to versions >= 1.7 and the MountPoints has not been populated with volumes data.
type volumes struct {
Volumes map[string]string
VolumesRW map[string]bool
}
cfgPath, err := container.ConfigPath()
if err != nil {
return err
}
f, err := os.Open(cfgPath)
if err != nil {
return errors.Wrap(err, "could not open container config")
}
defer f.Close()
var cv volumes
if err := json.NewDecoder(f).Decode(&cv); err != nil {
return errors.Wrap(err, "could not decode container config")
}
if len(container.MountPoints) == 0 && len(cv.Volumes) > 0 {
for destination, hostPath := range cv.Volumes {
vfsPath := filepath.Join(daemon.root, "vfs", "dir")
rw := cv.VolumesRW != nil && cv.VolumesRW[destination]
if strings.HasPrefix(hostPath, vfsPath) {
id := filepath.Base(hostPath)
v, err := daemon.volumes.CreateWithRef(id, volume.DefaultDriverName, container.ID, nil, nil)
if err != nil {
return err
}
if err := migrateVolume(id, hostPath); err != nil {
return err
}
container.AddMountPointWithVolume(destination, v, true)
} else { // Bind mount
m := volume.MountPoint{Source: hostPath, Destination: destination, RW: rw}
container.MountPoints[destination] = &m
}
}
return container.ToDisk()
}
return nil
}