2017-02-02 00:14:29 +03:00
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// Copyright 2017 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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2017-05-18 08:59:11 +03:00
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// Package yaml handles yaml-formatted clientv3 configuration data.
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2017-02-02 00:14:29 +03:00
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package yaml
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import (
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"crypto/tls"
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"crypto/x509"
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"io/ioutil"
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"github.com/ghodss/yaml"
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"github.com/coreos/etcd/clientv3"
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"github.com/coreos/etcd/pkg/tlsutil"
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)
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type yamlConfig struct {
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clientv3.Config
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InsecureTransport bool `json:"insecure-transport"`
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InsecureSkipTLSVerify bool `json:"insecure-skip-tls-verify"`
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Certfile string `json:"cert-file"`
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Keyfile string `json:"key-file"`
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2017-10-02 19:29:59 +03:00
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TrustedCAfile string `json:"trusted-ca-file"`
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// CAfile is being deprecated. Use 'TrustedCAfile' instead.
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// TODO: deprecate this in v4
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CAfile string `json:"ca-file"`
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2017-02-02 00:14:29 +03:00
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}
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// NewConfig creates a new clientv3.Config from a yaml file.
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func NewConfig(fpath string) (*clientv3.Config, error) {
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b, err := ioutil.ReadFile(fpath)
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if err != nil {
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return nil, err
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}
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yc := &yamlConfig{}
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err = yaml.Unmarshal(b, yc)
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if err != nil {
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return nil, err
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}
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if yc.InsecureTransport {
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return &yc.Config, nil
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}
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var (
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cert *tls.Certificate
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cp *x509.CertPool
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)
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if yc.Certfile != "" && yc.Keyfile != "" {
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cert, err = tlsutil.NewCert(yc.Certfile, yc.Keyfile, nil)
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if err != nil {
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return nil, err
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}
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}
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2017-10-02 19:29:59 +03:00
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if yc.TrustedCAfile != "" {
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cp, err = tlsutil.NewCertPool([]string{yc.TrustedCAfile})
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2017-02-02 00:14:29 +03:00
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if err != nil {
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return nil, err
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}
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}
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tlscfg := &tls.Config{
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2017-04-05 21:50:35 +03:00
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MinVersion: tls.VersionTLS12,
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2017-02-02 00:14:29 +03:00
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InsecureSkipVerify: yc.InsecureSkipTLSVerify,
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RootCAs: cp,
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}
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if cert != nil {
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tlscfg.Certificates = []tls.Certificate{*cert}
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}
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yc.Config.TLS = tlscfg
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return &yc.Config, nil
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}
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