fix: exit 0 when gracefully shutting down (#5555)

errors/errors.go

@@ -3,15 +3,6 @@ package errors
 import (
 	"errors"
 	"fmt"
-	"os"
-	"syscall"
-)
-
-const (
-	ExitCodeSigTerm = 128 + int(syscall.SIGTERM)
-	ExitCodeSighup  = 128 + int(syscall.SIGHUP)
-	ExitCodeSigint  = 128 + int(syscall.SIGINT)
-	ExitCodeSigquit = 128 + int(syscall.SIGQUIT)
 )
 
 var (
@@ -31,10 +22,6 @@ var (
 	ErrInvalidRequestParams = errors.New("invalid request params")
 	ErrSourceIsParent       = errors.New("source is parent")
 	ErrRootUserDeletion     = errors.New("user with id 1 can't be deleted")
-	ErrSigTerm              = errors.New("exit on signal: sigterm")
-	ErrSighup               = errors.New("exit on signal: sighup")
-	ErrSigint               = errors.New("exit on signal: sigint")
-	ErrSigquit              = errors.New("exit on signal: sigquit")
 )
 
 type ErrShortPassword struct {
@@ -44,44 +31,3 @@ type ErrShortPassword struct {
 func (e ErrShortPassword) Error() string {
 	return fmt.Sprintf("password is too short, minimum length is %d", e.MinimumLength)
 }
-
-// GetExitCode returns the exit code for a given error.
-func GetExitCode(err error) int {
-	if err == nil {
-		return 0
-	}
-
-	exitCodeMap := map[error]int{
-		ErrSigTerm: ExitCodeSigTerm,
-		ErrSighup:  ExitCodeSighup,
-		ErrSigint:  ExitCodeSigint,
-		ErrSigquit: ExitCodeSigquit,
-	}
-
-	for e, code := range exitCodeMap {
-		if errors.Is(err, e) {
-			return code
-		}
-	}
-
-	if exitErr, ok := err.(interface{ ExitCode() int }); ok {
-		return exitErr.ExitCode()
-	}
-
-	var pathErr *os.PathError
-	if errors.As(err, &pathErr) {
-		return 1
-	}
-
-	var syscallErr *os.SyscallError
-	if errors.As(err, &syscallErr) {
-		return 1
-	}
-
-	var errno syscall.Errno
-	if errors.As(err, &errno) {
-		return 1
-	}
-
-	return 1
-}