/
template.sh
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/
template.sh
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#!/bin/bash
### BEGIN INIT INFO
# Provides: <NAME>
# Required-Start: $local_fs $network $named $time $syslog
# Required-Stop: $local_fs $network $named $time $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: <SHORT-DESCRIPTION>
# Description: <DESCRIPTION>
### END INIT INFO
#################################################################################
#
# start-stop-daemon template for creating service scripts out of executables
#
# Most of the installations can be achieved by changing the variables below.
#
# This template is meant to be used freely.
# This template derives from a common template that is found on the web.
# Unfortunately I could not find the original source to give the proper credits
#
# source: https://gist.github.com/bcap/5397674
# Feel free to contribute!
#################################################################################
#################################################################################
# Fill/change the following vars
#################################################################################
PATH=/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/bin
DESC="<SHORT-DESCRIPTION>" # String describing the service
NAME="<NAME>" # Name of the service, will be used in another vars
DAEMON="<COMMAND>" # Path to the service executable, e.g. /usr/bin/java
DAEMON_ARGS="<ARGS>" # Arguments passed to the service startup
RUN_AS="<USERNAME>" # Which user will run the service
LIB_LOG_FILENAME="<LIB-LOG_FILENAME>" # The custom name for the lib & log path
WORK_DIR="/var/lib/${LIB_LOG_FILENAME}" # Working directory where the service will be started, defaults to /var/lib/${NAME}
USER=${RUN_AS} # User that will spawn the process, defaults to the service name
GROUP=${RUN_AS} # Group that will spawn the process, defaults to the service name
PID_FILE=/var/run/${NAME}.pid # Pid file location, defaults to /var/run/${NAME}.pid
SCRIPT_NAME=/etc/init.d/${NAME} # Location of this init script
LOG_PATH=/var/log/${LIB_LOG_FILENAME} # Standard output and Standard error will be outputted here
START_STOP_DAEMON_OPTIONS="--chuid=$USER:$GROUP --background --chdir=$WORK_DIR"
#################################################################################
# Change the code below if needed
#################################################################################
# Exit if the package is not installed
[ -x "$DAEMON" ] || exit 0
# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME
# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.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()
{
# Return
# 0 if daemon has been started
# 1 if daemon was already running
# 2 if daemon could not be started
start-stop-daemon $START_STOP_DAEMON_OPTIONS --start --pidfile $PID_FILE --exec $DAEMON --test >> \
${LOG_PATH}/${NAME}.out 2>> ${LOG_PATH}/${NAME}.err || return 1
start-stop-daemon $START_STOP_DAEMON_OPTIONS --start --pidfile $PID_FILE --exec $DAEMON -- $DAEMON_ARGS >> \
${LOG_PATH}/${NAME}.out 2>> ${LOG_PATH}/${NAME}.err || return 2
sleep 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.
}
#
# 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 $PID_FILE
RETVAL="$?"
[ "$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=0/30/KILL/5 --exec $DAEMON
[ "$?" = 2 ] && return 2
# Many daemons don't delete their pidfiles when they exit.
rm -f ${PID_FILE}
return "$RETVAL"
}
uninstall() {
echo -n "Are you sure you want to uninstall this service? That cannot be undone [yes|no]: "
local SURE
read SURE
if [ "$SURE" = "yes" ]; then
do_stop
rm -f "$PID_FILE"
echo "Notice: log path was not removed: $LOG_PATH" >&2
update-rc.d -f "$NAME" remove
rm -fv "$0"
rm -r "$WORK_DIR"
else
echo "Aborting..."
fi
}
disable() {
printf "Disabling service from boot...\n"
printf "This will cause your service not running on boot and stopping it right now\n"
do_stop
update-rc.d -f "$NAME" remove
printf "Service correctly disabled\n"
}
enable_again() {
printf "Enabling service...\n"
printf "This will cause your service running on boot and restarting it right now\n"
do_stop
do_start
update-rc.d "$NAME" defaults
printf "Service correctly enabled\n"
}
case "$1" in
start)
[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
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 $DESC" "$NAME"
do_stop
case "$?" in
0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
esac
;;
status)
status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
;;
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
;;
uninstall)
uninstall
;;
disable)
disable
;;
enable)
enable_again
;;
*)
echo "Usage: $SCRIPT_NAME {start|stop|status|restart|force-reload|uninstall|disable|enable}" >&2
exit 3
;;
esac
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