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Forked from sgreiner/node_debian_init.sh
Last active March 27, 2016 02:04
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#!/bin/bash
# ------------------------------------------------------------------------------
# SOME INFOS : fairly standard (debian) init script.
# Note that node doesn't create a PID file (hence --make-pidfile)
# has to be run in the background (hence --background)
# and NOT as root (hence --chuid)
#
# MORE INFOS : INIT SCRIPT http://www.debian.org/doc/debian-policy/ch-opersys.html#s-sysvinit
# INIT-INFO RULES http://wiki.debian.org/LSBInitScripts
# INSTALL/REMOVE http://www.debian-administration.org/articles/28
# ------------------------------------------------------------------------------
# #
# BEGIN <MODIFY TO REFLECT YOUR SETTINGS> #
# #
#
# 1) Don't forget to also modify the COMMENTED fields in the "### BEGIN INIT INFO"
# below (don't uncomment them) if you wish to install system-wide with update-rc.d
# eg: provides, Short-Description, Description
#
# 2) in case you have different node.js servers running, each init.d script should
# (obviously) have a UNIQUE BASE name so that PIDS do not conflict
# --> name them accordingly
# eg: node_static_server, node_express1, node_load_balancer.sh...
#
# 3) copy the renamed/modified script(s) to /etc/init.d
# chmod 755,
#
# 4) if you wish the Daemon to be lauched at boot / stopped at shutdown :
# INSTALL : update-rc.d scriptname defaults
# (UNINSTALL : update-rc.d -f scriptname remove)
#
# 5) based on : Debian /etc/init.d/skeleton
# modified by : Peter Host (www.oghme.com)
# modified by : Stefan Greiner (www.cadenas.de)
# ______________________________________________________________________________
### BEGIN INIT INFO
# Provides: uptime_node_debian_init
# Required-Start: $remote_fs $named $syslog $mongodb
# Required-Stop: $remote_fs $named $syslog $mongodb
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: DEBIAN initscript for uptime node.js servers/apps
# Description: DEBIAN initscript for uptime node.js servers/apps
# Place this file in /etc/init.d.
### END INIT INFO
# Author: Arthur Lutz <arthur@lutz.im>
#
# Please remove the "Author" lines above and replace them
# with your own name if you copy and modify this script.
# ______________________________________________________________________________
#
# PATH should only include /usr/* if it runs after the mountnfs.sh script
PATH=/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/bin # modify if you need
WORKING_DIR="/var/www/uptime" # path to your nodejs app
DAEMON_ARGS="app" # path to your node.js server/app
# NB: don't use ~/ in path
DESC="Uptime nodejs app" # whatever fancy description you like
NODEUSER=www-data:www-data # USER who OWNS the daemon process (no matter whoever runs the init script)
# user:group (if no group is specified, the primary GID for that user is used)
LOCAL_VAR_RUN=/var/run # in case the init script is run by non-root user, you need to
# indicate a directory writeable by $NODEUSER to store the PID file
# NB : 1) /usr/local/var/run does not exist by DEFAULT. Either create it
# or choose one of your own liking.
# 2) node, npm,... are best NOT installed/run as ROOT.
# (see here: https://github.com/isaacs/npm/blob/master/README.md)
NAME=node # name of the node.js executable
DAEMON=/usr/bin/$NAME # this SHOULD POINT TO where your node executable is
#
# #
# END </MODIFY TO REFLECT YOUR SETTINGS> #
# (Nothing else to modify from this point on...) #
# ------------------------------------------------------------------------------
# Do NOT "set -e"
set -x
[ $UID -eq "0" ] && LOCAL_VAR_RUN=/var/run # in case this script is run by root, override user setting
THIS_ARG=$0
INIT_SCRIPT_NAME=`basename $THIS_ARG`
[ -h $THIS_ARG ] && INIT_SCRIPT_NAME=`basename $(readlink $THIS_ARG)` # in case of symlink
INIT_SCRIPT_NAME_NOEXT=${INIT_SCRIPT_NAME%.*}
PIDFILE="$LOCAL_VAR_RUN/$INIT_SCRIPT_NAME_NOEXT.pid"
SCRIPTNAME=/etc/init.d/$INIT_SCRIPT_NAME
# Exit if the package is not installed
[ -x "$DAEMON" ] || { echo "can't find Node.js ($DAEMON)" >&2; exit 0; }
# Exit if the 'run' folder is not present
[ -d "$LOCAL_VAR_RUN" ] || { echo "Directory $LOCAL_VAR_RUN does not exist. Modify the '$INIT_SCRIPT_NAME_NOEXT' init.d script ($THIS_ARG) accordingly" >&2; exit 0; }
# Read configuration variable file if it is present
[ -r /etc/default/$INIT_SCRIPT_NAME ] && . /etc/default/$INIT_SCRIPT_NAME
# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh
# Define LSB log_* functions.
# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
. /lib/lsb/init-functions
# uncomment to override system setting
VERBOSE=yes
#
# Function that starts the daemon/service
#
do_start()
{
# Return
# 0 if daemon has been started
# 1 if daemon was already running
# 2 if daemon could not be started
start-stop-daemon --start --quiet --pidfile $PIDFILE --chuid $NODEUSER --background --chdir $WORKING_DIR --exec $DAEMON --test > /dev/null \
|| { [ "$VERBOSE" != no ] && log_progress_msg "---> Daemon already running.."; return 1; }
start-stop-daemon --start --quiet --chuid $NODEUSER --make-pidfile --pidfile $PIDFILE --background --chdir $WORKING_DIR --exec $DAEMON -- \
$DAEMON_ARGS \
|| { [ "$VERBOSE" != no ] && log_progress_msg "---> could not be started"; return 2; }
# Add code here, if necessary, that waits for the process to be ready
# to handle requests from services started subsequently which depend
# on this one. As a last resort, sleep for some time.
[ "$VERBOSE" != no ] && log_progress_msg "---> started"
return 0
}
#
# Function that stops the daemon/service
#
do_stop()
{
# Return
# 0 if daemon has been stopped
# 1 if daemon was already stopped
# 2 if daemon could not be stopped
# other if a failure occurred
start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --chuid $NODEUSER --exec $DAEMON
RETVAL="$?"
#[ "$VERBOSE" != no ] && [ "$RETVAL" = 1 ] && log_daemon_msg " ---> SIGKILL failed => hardkill $DESC" "$INIT_SCRIPT_NAME_NOEXT"
[ "$RETVAL" = 2 ] && return 2
# Wait for children to finish too if this is a daemon that forks
# and if the daemon is only ever run from this initscript.
# If the above conditions are not satisfied then add some other code
# that waits for the process to drop all resources that could be
# needed by services started subsequently. A last resort is to
# sleep for some time.
start-stop-daemon --stop --quiet --oknodo --retry=0/3/KILL/5 --pidfile $PIDFILE --chuid $NODEUSER --exec $DAEMON -- $DAEMON_ARGS
[ "$?" = 2 ] && return 2
# Many daemons don't delete their pidfiles when they exit.
rm -f $PIDFILE
[ "$VERBOSE" != no ] && [ "$RETVAL" = 1 ] && log_progress_msg "---> was not running.."
[ "$VERBOSE" != no -a "$RETVAL" = 0 ] && log_progress_msg "---> stopped"
return "$RETVAL"
}
#
# Function that sends a SIGHUP to the daemon/service
#
do_reload() {
#
# If the daemon can reload its configuration without
# restarting (for example, when it is sent a SIGHUP),
# then implement that here.
#
start-stop-daemon --stop --quiet --signal 1 --pidfile $PIDFILE --chuid $NODEUSER --name $NAME
return 0
}
#
# Function that returns the daemon
#
do_status() {
#
# http://refspecs.freestandards.org/LSB_3.1.1/LSB-Core-generic/LSB-Core-generic/iniscrptact.html
# 0 program is running or service is OK
# 1 program is dead and /var/run pid file exists
# (2 program is dead and /var/lock lock file exists) (not used here)
# 3 program is not running
# 4 program or service status is unknown
RUNNING=$(running)
# $PIDFILE corresponds to a live $NAME process
ispidactive=$(pidof $NAME | grep `cat $PIDFILE 2>&1` >/dev/null 2>&1)
ISPIDACTIVE=$?
if [ -n "$RUNNING" ]; then
if [ $ISPIDACTIVE ]; then
log_success_msg "$INIT_SCRIPT_NAME_NOEXT launched by $NODEUSER is running"
exit 0
fi
else
if [ -f $PIDFILE ]; then
log_success_msg "$INIT_SCRIPT_NAME_NOEXT launched by $NODEUSER is not running, phantom pidfile $PIDFILE"
exit 1
else
log_success_msg "Not running. No instance of $INIT_SCRIPT_NAME_NOEXT launched by $NODEUSER found"
exit 3
fi
fi
}
running() {
RUNSTAT=$(start-stop-daemon --start --quiet --pidfile $PIDFILE --chuid $NODEUSER --background --exec $DAEMON --test > /dev/null)
if [ "$?" = 1 ]; then
echo y
fi
}
case "$1" in
start)
[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$INIT_SCRIPT_NAME_NOEXT"
do_start
case "$?" in
0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
esac
;;
stop)
[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$INIT_SCRIPT_NAME_NOEXT"
do_stop
case "$?" in
0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
esac
;;
#reload|force-reload)
#
# If do_reload() is not implemented then leave this commented out
# and leave 'force-reload' as an alias for 'restart'.
#
#log_daemon_msg "Reloading $DESC" "$NAME"
#do_reload
#log_end_msg $?
#;;
restart|force-reload)
#
# If the "reload" option is implemented then remove the
# 'force-reload' alias
#
[ "$VERBOSE" != no ] && log_daemon_msg "Restarting $DESC" "$INIT_SCRIPT_NAME_NOEXT"
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
;;
status)
do_status
;;
*)
#echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2
echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload}" >&2
exit 3
;;
esac
exit 0
@Humphreybas
Copy link

Thank you for this script (picked it up from your debian package issue on uptime).
In ubuntu 14.04 I get alot of output when I do a sudo service uptime start|stop|restart, do you know how this is caused?

+ '[' 0 -eq 0 ']'
+ LOCAL_VAR_RUN=/var/run
+ THIS_ARG=/etc/init.d/uptime
++ basename /etc/init.d/uptime
+ INIT_SCRIPT_NAME=uptime
+ '[' -h /etc/init.d/uptime ']'
+ INIT_SCRIPT_NAME_NOEXT=uptime
+ PIDFILE=/var/run/uptime.pid
+ SCRIPTNAME=/etc/init.d/uptime
+ '[' -x /usr/bin/nodejs ']'
+ '[' -d /var/run ']'
+ '[' -r /etc/default/uptime ']'
+ . /lib/init/vars.sh
++ TMPTIME=0
++ SULOGIN=no
++ DELAYLOGIN=no
++ UTC=yes
++ VERBOSE=no
++ FSCKFIX=no
++ '[' -f /etc/default/rcS ']'
++ . /etc/default/rcS
+++ UTC=yes
++ unset EDITMOTD
++ unset RAMRUN
++ unset RAMLOCK
++ '[' -r /proc/cmdline ']'
+++ cat /proc/cmdline
++ for ARG in '$(cat /proc/cmdline)'
++ case $ARG in
++ for ARG in '$(cat /proc/cmdline)'
++ case $ARG in
++ '[' '' ']'
+ . /lib/lsb/init-functions
+++ run-parts --lsbsysinit --list /lib/lsb/init-functions.d
++ for hook in '$(run-parts --lsbsysinit --list /lib/lsb/init-functions.d 2>/dev/null)'
++ '[' -r /lib/lsb/init-functions.d/20-left-info-blocks ']'
++ . /lib/lsb/init-functions.d/20-left-info-blocks
++ for hook in '$(run-parts --lsbsysinit --list /lib/lsb/init-functions.d 2>/dev/null)'
++ '[' -r /lib/lsb/init-functions.d/50-ubuntu-logging ']'
++ . /lib/lsb/init-functions.d/50-ubuntu-logging
+++ LOG_DAEMON_MSG=
++ FANCYTTY=
++ '[' -e /etc/lsb-base-logging.sh ']'
++ true
+ VERBOSE=yes
+ case "$1" in
+ '[' yes '!=' no ']'
+ log_daemon_msg 'Restarting Uptime nodejs app' uptime
+ '[' -z 'Restarting Uptime nodejs app' ']'
+ log_use_fancy_output
+ TPUT=/usr/bin/tput
+ EXPR=/usr/bin/expr
+ '[' -t 1 ']'
+ '[' xxterm '!=' x ']'
+ '[' xxterm '!=' xdumb ']'
+ '[' -x /usr/bin/tput ']'
+ '[' -x /usr/bin/expr ']'
+ /usr/bin/tput hpa 60
+ /usr/bin/tput setaf 1
+ '[' -z ']'
+ FANCYTTY=1
+ case "$FANCYTTY" in
+ true
+ /usr/bin/tput xenl
++ /usr/bin/tput cols
+ COLS=144
+ '[' 144 ']'
+ '[' 144 -gt 6 ']'
++ /usr/bin/expr 144 - 7
+ COL=137
+ log_use_plymouth
+ '[' n = y ']'
+ plymouth --ping
+ printf ' * Restarting Uptime nodejs app uptime       '
 * Restarting Uptime nodejs app uptime       ++ /usr/bin/expr 144 - 1
+ /usr/bin/tput hpa 143
                                                                                                                                               + printf ' '
 + do_stop
+ start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile /var/run/uptime.pid --chuid www-data:www-data --exec /usr/bin/nodejs
+ RETVAL=0
+ '[' 0 = 2 ']'
+ start-stop-daemon --stop --quiet --oknodo --retry=0/3/KILL/5 --pidfile /var/run/uptime.pid --chuid www-data:www-data --exec /usr/bin/nodejs -- app
+ '[' 0 = 2 ']'
+ rm -f /var/run/uptime.pid
+ '[' yes '!=' no ']'
+ '[' 0 = 1 ']'
+ '[' yes '!=' no -a 0 = 0 ']'
+ log_progress_msg '---> stopped'
+ :
+ return 0
+ case "$?" in
+ do_start
+ start-stop-daemon --start --quiet --pidfile /var/run/uptime.pid --chuid www-data:www-data --background --chdir /home/chocjet/uptime --exec /usr/bin/nodejs --test
+ start-stop-daemon --start --quiet --chuid www-data:www-data --make-pidfile --pidfile /var/run/uptime.pid --background --chdir /home/chocjet/uptime --exec /usr/bin/nodejs -- app
+ '[' yes '!=' no ']'
+ log_progress_msg '---> started'
+ :
+ return 0
+ case "$?" in
+ log_end_msg 0
+ '[' -z 0 ']'
+ '[' 137 ']'
+ '[' -x /usr/bin/tput ']'
+ log_use_plymouth
+ '[' n = y ']'
+ plymouth --ping
+ printf '\r'
+ /usr/bin/tput hpa 137
                                                                                                                                         + '[' 0 -eq 0 ']'
+ echo '[ OK ]'
[ OK ]
+ return 0
+ exit 0

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