121 lines
3.3 KiB
Bash
121 lines
3.3 KiB
Bash
#!/bin/bash
|
|
#
|
|
### BEGIN INIT INFO
|
|
# Provides: kube-addons
|
|
# Required-Start: $local_fs $network $syslog kube-apiserver
|
|
# Required-Stop:
|
|
# Default-Start: 2 3 4 5
|
|
# Default-Stop: 0 1 6
|
|
# Short-Description: Kubernetes Addon Object Manager
|
|
# Description:
|
|
# Enforces installation of Kubernetes Addon Objects
|
|
### END INIT INFO
|
|
|
|
|
|
# PATH should only include /usr/* if it runs after the mountnfs.sh script
|
|
PATH=/sbin:/usr/sbin:/bin:/usr/bin
|
|
DESC="Kubernetes Addon Object Manager"
|
|
NAME=kube-addons
|
|
DAEMON_LOG_FILE=/var/log/${NAME}.log
|
|
PIDFILE=/var/run/${NAME}.pid
|
|
SCRIPTNAME=/etc/init.d/${NAME}
|
|
KUBE_ADDONS_SH=/etc/kubernetes/kube-addons.sh
|
|
|
|
# Define LSB log_* functions.
|
|
# Depend on lsb-base (>= 3.2-14) to ensure that this file is present
|
|
# and status_of_proc is working.
|
|
. /lib/lsb/init-functions
|
|
|
|
|
|
|
|
|
|
#
|
|
# Function that starts the daemon/service
|
|
#
|
|
do_start()
|
|
{
|
|
# use setsid to make sure the new daemon has its own group (I suppose
|
|
# start-stop-daemon does create a process group, but let's stay on the
|
|
# safe side).
|
|
setsid start-stop-daemon --start --verbose --background --no-close --make-pidfile --pidfile "${PIDFILE}" --startas "${KUBE_ADDONS_SH}" </dev/null >> ${DAEMON_LOG_FILE} 2>&1
|
|
}
|
|
|
|
#
|
|
# Function that stops the daemon/service
|
|
#
|
|
do_stop()
|
|
{
|
|
# start-stop-daemon is not used because we have to stop all children
|
|
# limitations:
|
|
# - stop does not work if the pid file is missing
|
|
# - stop does not work if the daemon process is missing (children will not
|
|
# be killed)
|
|
# This is sufficient - remaining processes will end after a while.
|
|
|
|
local pid
|
|
pid=$(cat "${PIDFILE}" 2> /dev/null)
|
|
if [[ $? != 0 ]]; then
|
|
return 1
|
|
fi
|
|
local pgrp
|
|
# find the process group for the service and kill entire group
|
|
# o - output format: pgpg - process group
|
|
pgrp=$(ps --no-headers --pid "${pid}" -o pgrp 2>/dev/null)
|
|
if [[ $? != 0 ]] || [[ "${pgrp}" == "" ]]; then
|
|
return 1
|
|
fi
|
|
pgrp=$(echo -e ${pgrp}) # strip whitespaces (that's why there are no quotes around pgrp)
|
|
# negative pid is for killing entire group
|
|
kill -- -${pgrp} 2> /dev/null
|
|
if [[ $? != 0 ]]; then
|
|
return 2
|
|
fi
|
|
rm -f "${PIDFILE}"
|
|
return
|
|
}
|
|
|
|
case "$1" in
|
|
start)
|
|
log_daemon_msg "Starting ${DESC}" "${NAME}"
|
|
do_start
|
|
case "$?" in
|
|
0|1) log_end_msg 0 || exit 0 ;;
|
|
2) log_end_msg 1 || exit 1 ;;
|
|
esac
|
|
;;
|
|
stop)
|
|
log_daemon_msg "Stopping ${DESC}" "${NAME}"
|
|
do_stop
|
|
case "$?" in
|
|
0|1) log_end_msg 0 || exit 0 ;;
|
|
2) log_end_msg 1 || exit 1 ;;
|
|
esac
|
|
;;
|
|
status)
|
|
status_of_proc -p "${PIDFILE}" "${KUBE_ADDONS_SH}" "${NAME}"
|
|
;;
|
|
|
|
restart|force-reload)
|
|
log_daemon_msg "Restarting ${DESC}" "${NAME}"
|
|
do_stop
|
|
case "$?" in
|
|
0|1)
|
|
do_start
|
|
case "$?" in
|
|
0) log_end_msg 0 ;;
|
|
1) log_end_msg 1 ;; # Old process is still running
|
|
*) log_end_msg 1 ;; # Failed to start
|
|
esac
|
|
;;
|
|
*)
|
|
# Failed to stop
|
|
log_end_msg 1
|
|
;;
|
|
esac
|
|
;;
|
|
*)
|
|
echo "Usage: ${SCRIPTNAME} {start|stop|status|restart|force-reload}" >&2
|
|
exit 3
|
|
;;
|
|
esac
|