51 lines
1.4 KiB
Go
51 lines
1.4 KiB
Go
// 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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package etcdmain
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import (
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"fmt"
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"os"
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"github.com/coreos/etcd/client"
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"github.com/coreos/etcd/pkg/transport"
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)
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func discoverEndpoints(dns string, ca string, insecure bool) (endpoints []string) {
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if dns == "" {
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return nil
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}
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endpoints, err := client.NewSRVDiscover().Discover(dns)
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if err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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plog.Infof("discovered the cluster %s from %s", endpoints, dns)
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if insecure {
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return endpoints
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}
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// confirm TLS connections are good
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tlsInfo := transport.TLSInfo{
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TrustedCAFile: ca,
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ServerName: dns,
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}
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plog.Infof("validating discovered endpoints %v", endpoints)
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endpoints, err = transport.ValidateSecureEndpoints(tlsInfo, endpoints)
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if err != nil {
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plog.Warningf("%v", err)
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}
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plog.Infof("using discovered endpoints %v", endpoints)
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return endpoints
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}
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