func mountSharedVolumes(root string, p *stage1commontypes.Pod, ra *schema.RuntimeApp) error {
appName := ra.Name
sharedVolPath := common.SharedVolumesPath(root)
if err := os.MkdirAll(sharedVolPath, stage1initcommon.SharedVolPerm); err != nil {
return errwrap.Wrap(errors.New("could not create shared volumes directory"), err)
}
if err := os.Chmod(sharedVolPath, stage1initcommon.SharedVolPerm); err != nil {
return errwrap.Wrap(fmt.Errorf("could not change permissions of %q", sharedVolPath), err)
}
imageManifest := p.Images[appName.String()]
mounts, err := stage1initcommon.GenerateMounts(ra, p.Manifest.Volumes, stage1initcommon.ConvertedFromDocker(imageManifest))
if err != nil {
return err
}
for _, m := range mounts {
absRoot, err := filepath.Abs(p.Root) // Absolute path to the pod's rootfs.
if err != nil {
return errwrap.Wrap(errors.New("could not get pod's root absolute path"), err)
}
absAppRootfs := common.AppRootfsPath(absRoot, appName)
if err != nil {
return fmt.Errorf(`could not evaluate absolute path for application rootfs in app: %v`, appName)
}
mntPath, err := stage1initcommon.EvaluateSymlinksInsideApp(absAppRootfs, m.Mount.Path)
if err != nil {
return errwrap.Wrap(fmt.Errorf("could not evaluate path %v", m.Mount.Path), err)
}
absDestination := filepath.Join(absAppRootfs, mntPath)
shPath := filepath.Join(sharedVolPath, m.Volume.Name.String())
if err := stage1initcommon.PrepareMountpoints(shPath, absDestination, &m.Volume, m.DockerImplicit); err != nil {
return err
}
var source string
switch m.Volume.Kind {
case "host":
source = m.Volume.Source
case "empty":
source = filepath.Join(common.SharedVolumesPath(root), m.Volume.Name.String())
default:
return fmt.Errorf(`invalid volume kind %q. Must be one of "host" or "empty"`, m.Volume.Kind)
}
if cleanedSource, err := filepath.EvalSymlinks(source); err != nil {
return errwrap.Wrap(fmt.Errorf("could not resolve symlink for source: %v", source), err)
} else if err := ensureDestinationExists(cleanedSource, absDestination); err != nil {
return errwrap.Wrap(fmt.Errorf("could not create destination mount point: %v", absDestination), err)
} else if err := doBindMount(cleanedSource, absDestination, m.ReadOnly, m.Volume.Recursive); err != nil {
return errwrap.Wrap(fmt.Errorf("could not bind mount path %v (s: %v, d: %v)", m.Mount.Path, source, absDestination), err)
}
}
return nil
}
func mountSharedVolumes(p *stage1commontypes.Pod, ra *schema.RuntimeApp) error {
appName := ra.Name
sharedVolPath, err := common.CreateSharedVolumesPath(p.Root)
if err != nil {
return err
}
imageManifest := p.Images[appName.String()]
mounts, err := stage1initcommon.GenerateMounts(ra, p.Manifest.Volumes, stage1initcommon.ConvertedFromDocker(imageManifest))
if err != nil {
return err
}
for _, m := range mounts {
absRoot, err := filepath.Abs(p.Root) // Absolute path to the pod's rootfs.
if err != nil {
return errwrap.Wrap(errors.New("could not get pod's root absolute path"), err)
}
absAppRootfs := common.AppRootfsPath(absRoot, appName)
if err != nil {
return fmt.Errorf(`could not evaluate absolute path for application rootfs in app: %v`, appName)
}
mntPath, err := stage1initcommon.EvaluateSymlinksInsideApp(absAppRootfs, m.Mount.Path)
if err != nil {
return errwrap.Wrap(fmt.Errorf("could not evaluate path %v", m.Mount.Path), err)
}
absDestination := filepath.Join(absAppRootfs, mntPath)
shPath := filepath.Join(sharedVolPath, m.Volume.Name.String())
if err := stage1initcommon.PrepareMountpoints(shPath, absDestination, &m.Volume, m.DockerImplicit); err != nil {
return err
}
source := m.Source(p.Root)
if cleanedSource, err := filepath.EvalSymlinks(source); err != nil {
return errwrap.Wrap(fmt.Errorf("could not resolve symlink for source: %v", source), err)
} else if err := ensureDestinationExists(cleanedSource, absDestination); err != nil {
return errwrap.Wrap(fmt.Errorf("could not create destination mount point: %v", absDestination), err)
} else if err := doBindMount(cleanedSource, absDestination, m.ReadOnly, m.Volume.Recursive); err != nil {
return errwrap.Wrap(fmt.Errorf("could not bind mount path %v (s: %v, d: %v)", m.Mount.Path, source, absDestination), err)
}
}
return nil
}