package config import ( "io" "os" "path/filepath" "github.com/docker/docker/api/types" "github.com/docker/docker/cli/config/configfile" "github.com/docker/docker/pkg/homedir" "github.com/pkg/errors" ) const ( // ConfigFileName is the name of config file ConfigFileName = "config.json" configFileDir = ".docker" oldConfigfile = ".dockercfg" ) var ( configDir = os.Getenv("DOCKER_CONFIG") ) func init() { if configDir == "" { configDir = filepath.Join(homedir.Get(), configFileDir) } } // Dir returns the directory the configuration file is stored in func Dir() string { return configDir } // SetDir sets the directory the configuration file is stored in func SetDir(dir string) { configDir = dir } // NewConfigFile initializes an empty configuration file for the given filename 'fn' func NewConfigFile(fn string) *configfile.ConfigFile { return &configfile.ConfigFile{ AuthConfigs: make(map[string]types.AuthConfig), HTTPHeaders: make(map[string]string), Filename: fn, } } // LegacyLoadFromReader is a convenience function that creates a ConfigFile object from // a non-nested reader func LegacyLoadFromReader(configData io.Reader) (*configfile.ConfigFile, error) { configFile := configfile.ConfigFile{ AuthConfigs: make(map[string]types.AuthConfig), } err := configFile.LegacyLoadFromReader(configData) return &configFile, err } // LoadFromReader is a convenience function that creates a ConfigFile object from // a reader func LoadFromReader(configData io.Reader) (*configfile.ConfigFile, error) { configFile := configfile.ConfigFile{ AuthConfigs: make(map[string]types.AuthConfig), } err := configFile.LoadFromReader(configData) return &configFile, err } // Load reads the configuration files in the given directory, and sets up // the auth config information and returns values. // FIXME: use the internal golang config parser func Load(configDir string) (*configfile.ConfigFile, error) { if configDir == "" { configDir = Dir() } configFile := configfile.ConfigFile{ AuthConfigs: make(map[string]types.AuthConfig), Filename: filepath.Join(configDir, ConfigFileName), } // Try happy path first - latest config file if _, err := os.Stat(configFile.Filename); err == nil { file, err := os.Open(configFile.Filename) if err != nil { return &configFile, errors.Errorf("%s - %v", configFile.Filename, err) } defer file.Close() err = configFile.LoadFromReader(file) if err != nil { err = errors.Errorf("%s - %v", configFile.Filename, err) } return &configFile, err } else if !os.IsNotExist(err) { // if file is there but we can't stat it for any reason other // than it doesn't exist then stop return &configFile, errors.Errorf("%s - %v", configFile.Filename, err) } // Can't find latest config file so check for the old one confFile := filepath.Join(homedir.Get(), oldConfigfile) if _, err := os.Stat(confFile); err != nil { return &configFile, nil //missing file is not an error } file, err := os.Open(confFile) if err != nil { return &configFile, errors.Errorf("%s - %v", confFile, err) } defer file.Close() err = configFile.LegacyLoadFromReader(file) if err != nil { return &configFile, errors.Errorf("%s - %v", confFile, err) } if configFile.HTTPHeaders == nil { configFile.HTTPHeaders = map[string]string{} } return &configFile, nil }