kops/upup/pkg/fi/secrets.go

70 lines
1.7 KiB
Go

/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package fi
import (
crypto_rand "crypto/rand"
"encoding/base64"
"fmt"
"k8s.io/kops/util/pkg/vfs"
"strings"
)
type SecretStore interface {
// Get a secret. Returns an error if not found
Secret(id string) (*Secret, error)
// Find a secret, if exists. Returns nil,nil if not found
FindSecret(id string) (*Secret, error)
// Create or replace a secret
GetOrCreateSecret(id string, secret *Secret) (current *Secret, created bool, err error)
// Lists the ids of all known secrets
ListSecrets() ([]string, error)
// VFSPath returns the path where the SecretStore is stored
VFSPath() vfs.Path
}
type Secret struct {
Data []byte
}
func (s *Secret) AsString() (string, error) {
// Nicer behaviour because this is called from templates
if s == nil {
return "", fmt.Errorf("AsString called on nil Secret")
}
return string(s.Data), nil
}
func CreateSecret() (*Secret, error) {
data := make([]byte, 128)
_, err := crypto_rand.Read(data)
if err != nil {
return nil, fmt.Errorf("error reading crypto_rand: %v", err)
}
s := base64.StdEncoding.EncodeToString(data)
r := strings.NewReplacer("+", "", "=", "", "/", "")
s = r.Replace(s)
s = s[:32]
return &Secret{
Data: []byte(s),
}, nil
}