package azure import ( "os" "path" "strconv" "strings" "github.com/restic/restic/internal/backend" "github.com/restic/restic/internal/errors" "github.com/restic/restic/internal/options" ) // Config contains all configuration necessary to connect to an azure compatible // server. type Config struct { AccountName string AccountSAS options.SecretString AccountKey options.SecretString ForceCliCredential bool EndpointSuffix string Container string Prefix string Connections uint `option:"connections" help:"set a limit for the number of concurrent connections (default: 5)"` } // NewConfig returns a new Config with the default values filled in. func NewConfig() Config { return Config{ Connections: 5, } } func init() { options.Register("azure", Config{}) } // ParseConfig parses the string s and extracts the azure config. The // configuration format is azure:containerName:/[prefix]. func ParseConfig(s string) (*Config, error) { if !strings.HasPrefix(s, "azure:") { return nil, errors.New("azure: invalid format") } // strip prefix "azure:" s = s[6:] // use the first entry of the path as the bucket name and the // remainder as prefix container, prefix, colon := strings.Cut(s, ":") if !colon { return nil, errors.New("azure: invalid format: bucket name or path not found") } prefix = strings.TrimPrefix(path.Clean(prefix), "/") cfg := NewConfig() cfg.Container = container cfg.Prefix = prefix return &cfg, nil } var _ backend.ApplyEnvironmenter = &Config{} // ApplyEnvironment saves values from the environment to the config. func (cfg *Config) ApplyEnvironment(prefix string) { if cfg.AccountName == "" { cfg.AccountName = os.Getenv(prefix + "AZURE_ACCOUNT_NAME") } if cfg.AccountKey.String() == "" { cfg.AccountKey = options.NewSecretString(os.Getenv(prefix + "AZURE_ACCOUNT_KEY")) } if cfg.AccountSAS.String() == "" { cfg.AccountSAS = options.NewSecretString(os.Getenv(prefix + "AZURE_ACCOUNT_SAS")) } var forceCliCred, err = strconv.ParseBool(os.Getenv(prefix + "AZURE_FORCE_CLI_CREDENTIAL")) if err == nil { cfg.ForceCliCredential = forceCliCred } if cfg.EndpointSuffix == "" { cfg.EndpointSuffix = os.Getenv(prefix + "AZURE_ENDPOINT_SUFFIX") } }