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0f87337667
Hostname behavior across operating systems is inconsistent (Macs can have uppercase host names, so can some other systems). In general, always strings.ToLower(os.Hostname()).
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.ToLower(strings.TrimSpace(string(hostname)))
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}
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