Added scripts for liota as service

scripts/README.md

@@ -0,0 +1,29 @@
+# Autostarting Liota Daemon
+For starting liotad.py in background automatically at reboot perform the following steps:
+  - On Ubuntu 15.04 or above or any of [these](https://en.wikipedia.org/wiki/Systemd#Availability) operating systems that use systemd. You can also check using this command `[[ `systemctl` =~ -\.mount ]] && echo yes || echo no` in terminal.
+     - Place liotad.service from scripts folder in `/etc/systemd/system` folder.
+    - Make your script executable with:
+        `chmod u+x /path/to/spark/sbin/start-all.sh`
+    - Start it:
+        `sudo systemctl start myfirst`
+    - Enable it to run at boot:
+        `sudo systemctl enable myfirst`
+    - Stop it:
+        `sudo systemctl stop myfirst `
+- On Ubuntu 14.04 or [these](https://en.wikipedia.org/wiki/Upstart#Adoption) operating systems which use upstart. You can also check using `[[ `/sbin/init --version` =~ upstart ]] && echo yes || echo no` in terminal.
+    - Copy liotad.conf from scripts to `/etc/init/`.
+    - To start service `service liotad start`.
+    - To stop service `service liotad stop`.
+    - To check status `service liotad status`.
+- On sys-v init systems like Ubuntu 12.04 or older you can use autostartliota script. You can check sys-v init using `[[ -f /etc/init.d/cron && ! -h /etc/init.d/cron ]] && echo yes` :
+    * Place autostartliota in `/etc/init.d`
+    * Execute :
+        ```bash
+        $ sudo update-rc.d autostartliota defaults
+        $ sudo invoke-rc.d autostartliota start
+        ```
+
+    * To stop the script and remove it from different runlevels, execute:
+        ```bash
+        $ sudo update-rc.d -f autostartliota remove
+        ```

scripts/autostartliota

@@ -1,64 +1,70 @@
-#! /bin/sh
-# -*- coding: utf-8 -*-
-# ----------------------------------------------------------------------------#
-#  Copyright © 2015-2016 VMware, Inc. All Rights Reserved.                    #
-#                                                                             #
-#  Licensed under the BSD 2-Clause License (the “License”); you may not use   #
-#  this file except in compliance with the License.                           #
-#                                                                             #
-#  The BSD 2-Clause License                                                   #
-#                                                                             #
-#  Redistribution and use in source and binary forms, with or without         #
-#  modification, are permitted provided that the following conditions are met:#
-#                                                                             #
-#  - Redistributions of source code must retain the above copyright notice,   #
-#      this list of conditions and the following disclaimer.                  #
-#                                                                             #
-#  - Redistributions in binary form must reproduce the above copyright        #
-#      notice, this list of conditions and the following disclaimer in the    #
-#      documentation and/or other materials provided with the distribution.   #
-#                                                                             #
-#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"#
-#  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE  #
-#  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE #
-#  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE  #
-#  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR        #
-#  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF       #
-#  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS   #
-#  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN    #
-#  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)    #
-#  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF     #
-#  THE POSSIBILITY OF SUCH DAMAGE.                                            #
-# ----------------------------------------------------------------------------#
+#!/bin/sh
 
 ### BEGIN INIT INFO
-# Provides:          Autostarts liota.
-# Required-Start:    $all
-# Required-Stop:
+# Provides:          liotad
+# Required-Start:    $remote_fs $syslog
+# Required-Stop:     $remote_fs $syslog
 # Default-Start:     2 3 4 5
-# Default-Stop:
-# Short-Description: Starts liotad.py in background at reboot.
+# Default-Stop:      0 1 6
+# Description:       Starts liota daemon
 ### END INIT INFO
 
-PATH=/sbin:/usr/sbin:/bin:/usr/bin
+DIR=/usr/lib/liota/packages/liotad
+DAEMON=$DIR/liotad.py
+DAEMON_NAME=liotad
 
-do_start() {
-	sudo python /etc/liota/packages/liotad.py &
+# This next line determines what user the script runs as.
+# Root generally not recommended but necessary if you are using the Raspberry Pi GPIO from Python.
+DAEMON_USER=root
+
+# The process ID of the script when it runs is stored here:
+PIDFILE=/var/run/$DAEMON_NAME.pid
+
+#Get lsb functions
+. /lib/lsb/init-functions
+
+check_init() {
+    # see also init_is_upstart in /lib/lsb/init-functions (which isn't available in Ubuntu 12.04, or we'd use it directly)
+    if [ -x /sbin/initctl ] && /sbin/initctl version 2>/dev/null | grep -q upstart; then
+        log_failure_msg "$DAEMON_NAME is managed via upstart, try using service $DAEMON_NAME $1"
+        exit 1
+    fi
+}
+
+do_start () {
+    log_daemon_msg "Starting system $DAEMON_NAME daemon"
+    start-stop-daemon --start --background --pidfile $PIDFILE --make-pidfile --user $DAEMON_USER --chuid $DAEMON_USER --startas $DAEMON
+    log_end_msg $?
+}
+
+do_stop () {
+    log_daemon_msg "Stopping system $DAEMON_NAME daemon"
+    start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE
+    log_end_msg $?
 }
 
 case "$1" in
-    start)
-	do_start
+
+    start|stop)
+        check_init
+        do_${1}
         ;;
+
     restart|reload|force-reload)
-        echo "Error: argument '$1' not supported" >&2
-        exit 3
+        check_init
+        do_stop
+        do_start
         ;;
-    stop)
+
+    status)
+        check_init
+        status_of_proc "$DAEMON_NAME" "$DAEMON" && exit 0 || exit $?
         ;;
+
     *)
-        echo "Usage: $0 start|stop" >&2
-        exit 3
+        echo "Usage: /etc/init.d/$DAEMON_NAME {start|stop|restart|status}"
+        exit 1
         ;;
-esac
 
+esac
+exit 0

scripts/liotad.conf

@@ -0,0 +1,20 @@
+description "Liota daemon"
+author      "Prasha"
+
+start on runlevel [2345]
+stop on shutdown
+
+script
+
+    export HOME="/root"
+    exec /usr/bin/python /etc/liota/packages/liotad.py 
+    exec echo Liota service ran at `date` >> /var/log/liota/liota.log
+
+end script
+
+post-start script
+
+   # optionally put a script here that will notify liota has (re)started
+   echo "[`date`] Service liota running" >> /var/log/liota/liota.log
+
+end script

scripts/liotad.service

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+[Unit]
+Description=Liota
+
+[Service]
+Users=root
+ExecStart=/etc/liota/packages/liotad.py
+
+[Install]
+WantedBy=multi-user.target