e34280e7af
* Changed reference to Caddy over to CoreDNS * Removing references to caddy * Fixed misleading error message to reference coredns * Cleaning up references to caddy * Adding clean and deps targets Muscle memory is resulting in "make clean" commands. * Adding test target to makefile * More "Caddy" cleanup
79 lines
1.7 KiB
Go
79 lines
1.7 KiB
Go
// +build !windows
|
|
|
|
package core
|
|
|
|
import (
|
|
"io/ioutil"
|
|
"log"
|
|
"os"
|
|
"os/signal"
|
|
"syscall"
|
|
)
|
|
|
|
// trapSignalsPosix captures POSIX-only signals.
|
|
func trapSignalsPosix() {
|
|
go func() {
|
|
sigchan := make(chan os.Signal, 1)
|
|
signal.Notify(sigchan, syscall.SIGTERM, syscall.SIGHUP, syscall.SIGQUIT, syscall.SIGUSR1)
|
|
|
|
for sig := range sigchan {
|
|
switch sig {
|
|
case syscall.SIGTERM:
|
|
log.Println("[INFO] SIGTERM: Terminating process")
|
|
if PidFile != "" {
|
|
os.Remove(PidFile)
|
|
}
|
|
os.Exit(0)
|
|
|
|
case syscall.SIGQUIT:
|
|
log.Println("[INFO] SIGQUIT: Shutting down")
|
|
exitCode := executeShutdownCallbacks("SIGQUIT")
|
|
err := Stop()
|
|
if err != nil {
|
|
log.Printf("[ERROR] SIGQUIT stop: %v", err)
|
|
exitCode = 1
|
|
}
|
|
if PidFile != "" {
|
|
os.Remove(PidFile)
|
|
}
|
|
os.Exit(exitCode)
|
|
|
|
case syscall.SIGHUP:
|
|
log.Println("[INFO] SIGHUP: Hanging up")
|
|
err := Stop()
|
|
if err != nil {
|
|
log.Printf("[ERROR] SIGHUP stop: %v", err)
|
|
}
|
|
|
|
case syscall.SIGUSR1:
|
|
log.Println("[INFO] SIGUSR1: Reloading")
|
|
|
|
var updatedCorefile Input
|
|
|
|
corefileMu.Lock()
|
|
if corefile == nil {
|
|
// Hmm, did spawing process forget to close stdin? Anyhow, this is unusual.
|
|
log.Println("[ERROR] SIGUSR1: no Corefile to reload (was stdin left open?)")
|
|
corefileMu.Unlock()
|
|
continue
|
|
}
|
|
if corefile.IsFile() {
|
|
body, err := ioutil.ReadFile(corefile.Path())
|
|
if err == nil {
|
|
updatedCorefile = CorefileInput{
|
|
Filepath: corefile.Path(),
|
|
Contents: body,
|
|
RealFile: true,
|
|
}
|
|
}
|
|
}
|
|
corefileMu.Unlock()
|
|
|
|
err := Restart(updatedCorefile)
|
|
if err != nil {
|
|
log.Printf("[ERROR] SIGUSR1: %v", err)
|
|
}
|
|
}
|
|
}
|
|
}()
|
|
}
|