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package mesosutil
import (
"os"
"os/exec"
"strings"
log "github.com/golang/glog"
)
//TODO(jdef) copied from kubernetes/pkg/util/node.go
func GetHostname(hostnameOverride string) string {
hostname := hostnameOverride
if hostname == "" {
// Note: We use exec here instead of os.Hostname() because we
// want the FQDN, and this is the easiest way to get it.
fqdn, err := exec.Command("hostname", "-f").Output()
if err != nil || len(fqdn) == 0 {
log.Errorf("Couldn't determine hostname fqdn, failing back to hostname: %v", err)
hostname, err = os.Hostname()
if err != nil {
log.Fatalf("Error getting hostname: %v", err)
}
} else {
hostname = string(fqdn)
}
}
return strings.TrimSpace(hostname)
}
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