| package utils |
| |
| import ( |
| "fmt" |
| "io/ioutil" |
| "log" |
| "os" |
| "strconv" |
| ) |
| |
| func CreatePidFile(pidfile string) error { |
| if pidString, err := ioutil.ReadFile(pidfile); err == nil { |
| pid, err := strconv.Atoi(string(pidString)) |
| if err == nil { |
| if _, err := os.Stat(fmt.Sprintf("/proc/%d/", pid)); err == nil { |
| return fmt.Errorf("pid file found, ensure docker is not running or delete %s", pidfile) |
| } |
| } |
| } |
| |
| file, err := os.Create(pidfile) |
| if err != nil { |
| return err |
| } |
| |
| defer file.Close() |
| |
| _, err = fmt.Fprintf(file, "%d", os.Getpid()) |
| return err |
| } |
| |
| func RemovePidFile(pidfile string) { |
| if err := os.Remove(pidfile); err != nil { |
| log.Printf("Error removing %s: %s", pidfile, err) |
| } |
| } |