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https://github.com/optim-enterprises-bv/kubernetes.git
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39 lines
1.1 KiB
Go
39 lines
1.1 KiB
Go
/*
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Copyright 2015 Google Inc. All rights reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package util
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import (
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"os/exec"
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"strings"
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"github.com/golang/glog"
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)
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func GetHostname(hostnameOverride string) string {
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hostname := []byte(hostnameOverride)
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if string(hostname) == "" {
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// Note: We use exec here instead of os.Hostname() because we
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// want the FQDN, and this is the easiest way to get it.
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fqdn, err := exec.Command("hostname", "-f").Output()
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if err != nil {
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glog.Fatalf("Couldn't determine hostname: %v", err)
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}
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hostname = fqdn
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}
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return strings.TrimSpace(string(hostname))
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}
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