New init script that also evaluates "/etc/default/octoprint" for additional startup options and the like, courtesy of Sami Olmari

This commit is contained in:
Gina Häußge 2013-09-16 18:09:39 +02:00
parent 51ae782f02
commit 78972b1d40
2 changed files with 136 additions and 25 deletions

19
scripts/octoprint.default Normal file
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@ -0,0 +1,19 @@
# Configuration for /etc/init.d/octoprint
# The init.d script will only run if this variable non-empty.
OCTOPRINT_USER=pi
# On what port to run daemon, default is 5000
PORT=5000
# Path to the OctoPrint executable, use this to override the default setting "/usr/bin/octoprint"
#DAEMON=/path/to/octoprint/executable
# What arguments to pass to octoprint, usually no need to touch this
DAEMON_ARGS="--port=$PORT"
# Umask of files octoprint generates, Change this to 000 if running octoprint as its own, separate user
UMASK=022
# Should we run at startup?
START=yes

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#!/bin/sh
#
# Copy this script to /etc/init.d/octoprint and adjust the variables
# at the top to match your installation (should be okay for a Raspian
# setup). Then link it to the correct run levels. On Debian/Rasbian
# just call 'sudo update-rc.d octoprint defaults'
### BEGIN INIT INFO
# Provides: octoprint
# Required-Start: $local_fs networking
# Required-Stop:
# Should-Start:
# Should-Stop:
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Run octoprint
# Description: Octoprint provides a responsive web interface for
# controlling a 3D printer
# Short-Description: OctoPrint daemon
# Description: Starts the OctoPrint daemon with the user specified in
# /etc/default/octoprint.
### END INIT INFO
# Author: Sami Olmari
# OctoPrint's run script
DAEMON=/home/pi/OctoPrint/run
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DESC="Octoprint Daemon"
NAME="Octoprint"
DAEMON=/usr/bin/octoprint
PIDFILE=/var/run/$NAME.pid
PKGNAME=octoprint
SCRIPTNAME=/etc/init.d/$PKGNAME
# Port to use
PORT=5000
# Read configuration variable file if it is present
[ -r /etc/default/$PKGNAME ] && . /etc/default/$PKGNAME
# Run as this user
RUNAS=pi
# Exit if the run script is not found
# Exit if the octoprint is not installed
[ -x "$DAEMON" ] || exit 0
# Load the VERBOSE setting and other rcS variables
[ -f /etc/default/rcS ] && . /etc/default/rcS
# Define LSB log_* functions.
# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
. /lib/lsb/init-functions
if [ -z "$START" -o "$START" != "yes" ]
then
log_warning_msg "Not starting $PKGNAME, edit /etc/default/$PKGNAME to start it."
exit 0
fi
if [ -z "$OCTOPRINT_USER" ]
then
log_warning_msg "Not starting $PKGNAME, OCTOPRINT_USER not set in /etc/default/$PKGNAME."
exit 0
fi
#
# Function to verify if a pid is alive
#
is_alive()
{
pid=`cat $1` > /dev/null 2>&1
kill -0 $pid > /dev/null 2>&1
return $?
}
#
# 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
is_alive $PIDFILE
RETVAL="$?"
if [ $RETVAL != 0 ]; then
start-stop-daemon --start --background --quiet --pidfile $PIDFILE --make-pidfile \
--exec $DAEMON --chuid $OCTOPRINT_USER --user $OCTOPRINT_USER --umask $UMASK -- $DAEMON_ARGS
RETVAL="$?"
fi
}
#
# 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 --user $OCTOPRINT_USER --pidfile $PIDFILE
RETVAL="$?"
[ "$RETVAL" = "2" ] && return 2
rm -f $PIDFILE
[ "$RETVAL" = "0" ] && return 0 || return 1
}
case "$1" in
start)
su $RUNAS -c "$DAEMON --port=$PORT --daemon start"
[ "$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)
su $RUNAS -c "$DAEMON --port=$PORT --daemon stop"
[ "$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
;;
restart)
su $RUNAS -c "$DAEMON --port=$PORT --daemon restart"
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
;;
*)
echo "Usage: $0 {start|stop|restart}" >&2
# Failed to stop
log_end_msg 1
;;
esac
;;
*)
echo "Usage: $SCRIPTNAME {start|stop|restart}" >&2
exit 3
;;
esac
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