ab5e0e0b5c
This change appends the full hostname to the mirror pod name (instead of taking the first token) so that if the hostname is overriden, we'd not be creating unncessary name conflicts. An example would be that a user overrides the hostnames to be "127.0.0.1" and "127.0.0.2", and both of them were resolved to "127" for the mirror pod name suffix. Also, because `uname -n` could return a FQDN or not, this change takes only the first token of it as the hostname for consistency.
40 lines
1.1 KiB
Go
40 lines
1.1 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors 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 := hostnameOverride
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if string(hostname) == "" {
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nodename, err := exec.Command("uname", "-n").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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chunks := strings.Split(string(nodename), ".")
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// nodename could be a fully-qualified domain name or not. Take the first
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// word of nodename as the hostname for consistency.
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hostname = chunks[0]
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}
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return strings.ToLower(strings.TrimSpace(hostname))
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}
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