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Merge pull request #19325 from mingqing/fix-pid-convert-error

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fix pidfile, pid is num use '/proc + string(pid)' can't found it
This commit is contained in:
Brian Goff 2016-01-14 16:49:20 -05:00
commit fa7ee8955f
1 changed files with 5 additions and 3 deletions
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8
pidfile/pidfile.go
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@ -9,6 +9,7 @@ import (
"os"
"path/filepath"
"strconv"
"strings"
)
// PIDFile is a file used to store the process ID of a running process.
@ -17,9 +18,10 @@ type PIDFile struct {
}
func checkPIDFileAlreadyExists(path string) error {
if pidString, err := ioutil.ReadFile(path); err == nil {
if pid, err := strconv.Atoi(string(pidString)); err == nil {
if _, err := os.Stat(filepath.Join("/proc", string(pid))); err == nil {
if pidByte, err := ioutil.ReadFile(path); err == nil {
pidString := strings.TrimSpace(string(pidByte))
if pid, err := strconv.Atoi(pidString); err == nil {
if _, err := os.Stat(filepath.Join("/proc", strconv.Itoa(pid))); err == nil {
return fmt.Errorf("pid file found, ensure docker is not running or delete %s", path)
}
}