func (c *Cluster) saveState() error {
dt, err := json.Marshal(state{ListenAddr: c.listenAddr})
if err != nil {
return err
}
return ioutils.AtomicWriteFile(filepath.Join(c.root, stateFile), dt, 0600)
}
func calculateLayerChecksum(graphDir, id string, ls checksumCalculator) error {
diffIDFile := filepath.Join(graphDir, id, migrationDiffIDFileName)
if _, err := os.Lstat(diffIDFile); err == nil {
return nil
} else if !os.IsNotExist(err) {
return err
}
parent, err := getParent(filepath.Join(graphDir, id))
if err != nil {
return err
}
diffID, size, err := ls.ChecksumForGraphID(id, parent, filepath.Join(graphDir, id, tarDataFileName), filepath.Join(graphDir, id, migrationTarDataFileName))
if err != nil {
return err
}
if err := ioutil.WriteFile(filepath.Join(graphDir, id, migrationSizeFileName), []byte(strconv.Itoa(int(size))), 0600); err != nil {
return err
}
if err := ioutils.AtomicWriteFile(filepath.Join(graphDir, id, migrationDiffIDFileName), []byte(diffID), 0600); err != nil {
return err
}
logrus.Infof("calculated checksum for layer %s: %s", id, diffID)
return nil
}
func (c *Cluster) saveState(config nodeStartConfig) error {
dt, err := json.Marshal(config)
if err != nil {
return err
}
return ioutils.AtomicWriteFile(filepath.Join(c.root, stateFile), dt, 0600)
}
func savePersistentState(root string, config nodeStartConfig) error {
dt, err := json.Marshal(config)
if err != nil {
return err
}
return ioutils.AtomicWriteFile(filepath.Join(root, stateFile), dt, 0600)
}
func (store *store) save() error {
// Store the json
jsonData, err := json.Marshal(store)
if err != nil {
return err
}
return ioutils.AtomicWriteFile(store.jsonPath, jsonData, 0600)
}
// Callers are expected to hold the store lock.
func (ps *Store) updatePluginDB() error {
jsonData, err := json.Marshal(ps.plugins)
if err != nil {
logrus.Debugf("Error in json.Marshal: %v", err)
return err
}
ioutils.AtomicWriteFile(ps.plugindb, jsonData, 0600)
return nil
}
// Set writes data indexed by namespace and key. The data is written to a file
// named after the key, stored in the namespace's directory.
func (store *FSMetadataStore) Set(namespace, key string, value []byte) error {
store.Lock()
defer store.Unlock()
path := store.path(namespace, key)
if err := os.MkdirAll(filepath.Dir(path), 0755); err != nil {
return err
}
return ioutils.AtomicWriteFile(path, value, 0644)
}
func (pm *Manager) save(p *v2.Plugin) error {
pluginJSON, err := json.Marshal(p)
if err != nil {
return errors.Wrap(err, "failed to marshal plugin json")
}
if err := ioutils.AtomicWriteFile(filepath.Join(pm.config.Root, p.GetID(), configFileName), pluginJSON, 0600); err != nil {
return err
}
return nil
}
// fixme: not safe
func (pm *Manager) save() error {
filePath := filepath.Join(pm.libRoot, "plugins.json")
jsonData, err := json.Marshal(pm.plugins)
if err != nil {
logrus.Debugf("Error in json.Marshal: %v", err)
return err
}
ioutils.AtomicWriteFile(filePath, jsonData, 0600)
return nil
}
func (c *Cluster) saveState() error {
dt, err := json.Marshal(state{
LocalAddr: c.localAddr,
RemoteAddr: c.remoteAddr,
ListenAddr: c.listenAddr,
AdvertiseAddr: c.advertiseAddr,
})
if err != nil {
return err
}
return ioutils.AtomicWriteFile(filepath.Join(c.root, stateFile), dt, 0600)
}
// SetMetadata sets metadata for a given ID. It fails if there's no base file.
func (s *fs) SetMetadata(dgst digest.Digest, key string, data []byte) error {
s.Lock()
defer s.Unlock()
if _, err := s.get(dgst); err != nil {
return err
}
baseDir := filepath.Join(s.metadataDir(dgst))
if err := os.MkdirAll(baseDir, 0700); err != nil {
return err
}
return ioutils.AtomicWriteFile(filepath.Join(s.metadataDir(dgst), key), data, 0600)
}
// Set stores content by checksum.
func (s *fs) Set(data []byte) (digest.Digest, error) {
s.Lock()
defer s.Unlock()
if len(data) == 0 {
return "", fmt.Errorf("invalid empty data")
}
dgst := digest.FromBytes(data)
if err := ioutils.AtomicWriteFile(s.contentFile(dgst), data, 0600); err != nil {
return "", err
}
return dgst, nil
}
// Set stores content under a given ID.
func (s *fs) Set(data []byte) (ID, error) {
s.Lock()
defer s.Unlock()
if len(data) == 0 {
return "", fmt.Errorf("Invalid empty data")
}
id := ID(digest.FromBytes(data))
if err := ioutils.AtomicWriteFile(s.contentFile(id), data, 0600); err != nil {
return "", err
}
return id, nil
}
// LoadOrCreateTrustKey attempts to load the libtrust key at the given path,
// otherwise generates a new one
func LoadOrCreateTrustKey(trustKeyPath string) (libtrust.PrivateKey, error) {
err := system.MkdirAll(filepath.Dir(trustKeyPath), 0700)
if err != nil {
return nil, err
}
trustKey, err := libtrust.LoadKeyFile(trustKeyPath)
if err == libtrust.ErrKeyFileDoesNotExist {
trustKey, err = libtrust.GenerateECP256PrivateKey()
if err != nil {
return nil, fmt.Errorf("Error generating key: %s", err)
}
encodedKey, err := serializePrivateKey(trustKey, filepath.Ext(trustKeyPath))
if err != nil {
return nil, fmt.Errorf("Error serializing key: %s", err)
}
if err := ioutils.AtomicWriteFile(trustKeyPath, encodedKey, os.FileMode(0600)); err != nil {
return nil, fmt.Errorf("Error saving key file: %s", err)
}
} else if err != nil {
return nil, fmt.Errorf("Error loading key file %s: %s", trustKeyPath, err)
}
return trustKey, nil
}