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add pidfile support to hupper

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Signed-off-by: Justin Cormack <justin.cormack@docker.com>
This commit is contained in:
Justin Cormack 2016-01-26 11:24:10 +00:00
parent b24ce0d678
commit c0c14ebf23
2 changed files with 12 additions and 6 deletions
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4
alpine/packages/hupper/etc/init.d/hupper
View File

@ -14,7 +14,7 @@ start()
ebegin "Starting docker config update manager" ebegin "Starting docker config update manager"
[ -n "${PIDFILE}" ] || PIDFILE=/var/run/hupper.pid [ -n "${PIDFILE}" ] || PIDFILE=/run/hupper.pid
start-stop-daemon --start --quiet \ start-stop-daemon --start --quiet \
--background \ --background \
@ -31,7 +31,7 @@ stop()
ebegin "Stopping docker config update manager" ebegin "Stopping docker config update manager"
[ -n "${PIDFILE}" ] || PIDFILE=/var/run/hupper.pid [ -n "${PIDFILE}" ] || PIDFILE=/run/hupper.pid
start-stop-daemon --stop --quiet --pidfile ${PIDFILE} start-stop-daemon --stop --quiet --pidfile ${PIDFILE}

14
alpine/packages/hupper/main.go
View File

@ -10,19 +10,25 @@ import (
) )
var ( var (
path string path string
pidfile string huppidfile string
pidfile string
) )
func init() { func init() {
flag.StringVar(&path, "path", "/Database/branch/master/watch/com.docker.driver.amd64-linux.node/etc.node/docker.node/daemon.json.node/tree.live", "path of the file to watch") flag.StringVar(&path, "path", "/Database/branch/master/watch/com.docker.driver.amd64-linux.node/etc.node/docker.node/daemon.json.node/tree.live", "path of the file to watch")
flag.StringVar(&pidfile, "pidfile", "/run/docker.pid", "pidfile for process to signal") flag.StringVar(&huppidfile, "huppidfile", "/run/docker.pid", "pidfile for process to signal")
flag.StringVar(&pidfile, "pidfile", "/run/hupper.pid", "my pidfile")
} }
func main() { func main() {
log.SetFlags(0) log.SetFlags(0)
flag.Parse() flag.Parse()
pid := os.Getpid()
pidbytes := []byte(strconv.Itoa(pid))
_ = ioutil.WriteFile(pidfile, pidbytes, 0644)
watch, err := os.Open(path) watch, err := os.Open(path)
if err != nil { if err != nil {
log.Fatalln("Failed to open file", path, err) log.Fatalln("Failed to open file", path, err)
@ -37,7 +43,7 @@ func main() {
if n == 0 { if n == 0 {
continue continue
} }
bytes, err := ioutil.ReadFile(pidfile) bytes, err := ioutil.ReadFile(huppidfile)
if err != nil { if err != nil {
continue continue
} }