mirror of https://github.com/helm/helm
fibonacci1729
8 years ago
parent
d7cb50bf91
commit
735f4e3d4a
@ -0,0 +1,79 @@
|
||||
/*
|
||||
Copyright 2016 The Kubernetes Authors All rights reserved.
|
||||
|
||||
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 tlsutil
|
||||
|
||||
import (
|
||||
"crypto/tls"
|
||||
"crypto/x509"
|
||||
"fmt"
|
||||
"os"
|
||||
)
|
||||
|
||||
// Options represents configurable options used to create client and server TLS configurations.
|
||||
type Options struct {
|
||||
CaCertFile string
|
||||
// If either the KeyFile or CertFile is empty, ClientConfig() will not load them,
|
||||
// preventing helm from authenticating to Tiller. They are required to be non-empty
|
||||
// when calling ServerConfig, otherwise an error is returned.
|
||||
KeyFile string
|
||||
CertFile string
|
||||
// Client-only options
|
||||
InsecureSkipVerify bool
|
||||
// Server-only options
|
||||
ClientAuth tls.ClientAuthType
|
||||
}
|
||||
|
||||
// ClientConfig retusn a TLS configuration for use by a Helm client.
|
||||
func ClientConfig(opts Options) (cfg *tls.Config, err error) {
|
||||
var cert *tls.Certificate
|
||||
var pool *x509.CertPool
|
||||
|
||||
if opts.CertFile != "" || opts.KeyFile != "" {
|
||||
if cert, err = CertFromFilePair(opts.CertFile, opts.KeyFile); err != nil {
|
||||
return nil, fmt.Errorf("could not load x509 key pair (cert: %q, key: %q): %v", opts.CertFile, opts.KeyFile, err)
|
||||
}
|
||||
}
|
||||
if !opts.InsecureSkipVerify && opts.CaCertFile != "" {
|
||||
if pool, err = CertPoolFromFile(opts.CaCertFile); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
cfg = &tls.Config{InsecureSkipVerify: opts.InsecureSkipVerify, Certificates: []tls.Certificate{*cert}, RootCAs: pool}
|
||||
return cfg, nil
|
||||
}
|
||||
|
||||
// ServerConfig returns a TLS configuration for use by the Tiller server.
|
||||
func ServerConfig(opts Options) (cfg *tls.Config, err error) {
|
||||
var cert *tls.Certificate
|
||||
var pool *x509.CertPool
|
||||
|
||||
if cert, err = CertFromFilePair(opts.CertFile, opts.KeyFile); err != nil {
|
||||
if os.IsNotExist(err) {
|
||||
return nil, fmt.Errorf("could not load x509 key pair (cert: %q, key: %q): %v", opts.CertFile, opts.KeyFile, err)
|
||||
}
|
||||
return nil, fmt.Errorf("could not read x509 key pair (cert: %q, key: %q): %v", opts.CertFile, opts.KeyFile, err)
|
||||
}
|
||||
if opts.ClientAuth >= tls.VerifyClientCertIfGiven && opts.CaCertFile != "" {
|
||||
if pool, err = CertPoolFromFile(opts.CaCertFile); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
cfg = &tls.Config{MinVersion: tls.VersionTLS12, ClientAuth: opts.ClientAuth, Certificates: []tls.Certificate{*cert}, ClientCAs: pool}
|
||||
return cfg, nil
|
||||
}
|
||||
Loading…
Reference in new issue