open-consul/testutil/keyring.go

44 lines
812 B
Go

package testutil
import (
"encoding/base64"
"encoding/json"
"fmt"
"os"
"path/filepath"
)
// InitKeyring will create a keyring file at a given path.
func InitKeyring(path, key string) error {
if _, err := base64.StdEncoding.DecodeString(key); err != nil {
return fmt.Errorf("Invalid key: %s", err)
}
keys := []string{key}
keyringBytes, err := json.Marshal(keys)
if err != nil {
return err
}
if err := os.MkdirAll(filepath.Dir(path), 0700); err != nil {
return err
}
if _, err := os.Stat(path); err == nil {
return fmt.Errorf("File already exists: %s", path)
}
fh, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0600)
if err != nil {
return err
}
defer fh.Close()
if _, err := fh.Write(keyringBytes); err != nil {
os.Remove(path)
return err
}
return nil
}