restart-dashing

#!/bin/bash

#/******************************************************************************
# * Icinga 2 Dashing Restart Script                                            *
# * Copyright (C) 2016-2017 Icinga Development Team (https://www.icinga.com)   *
# *                                                                            *
# * This program is free software; you can redistribute it and/or              *
# * modify it under the terms of the GNU General Public License                *
# * as published by the Free Software Foundation; either version 2             *
# * of the License, or (at your option) any later version.                     *
# *                                                                            *
# * This program is distributed in the hope that it will be useful,            *
# * but WITHOUT ANY WARRANTY; without even the implied warranty of             *
# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
# * GNU General Public License for more details.                               *
# *                                                                            *
# * You should have received a copy of the GNU General Public License          *
# * along with this program; if not, write to the Free Software Foundation     *
# * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.             *
# ******************************************************************************/

if [ -d '/usr/share/dashing-icinga2' ]; then
  DASHING_PWD='/usr/share/dashing-icinga2'
else
  DASHING_PWD=`pwd`
fi

DASHING_PORT=8005
DASHING_PID_FILE="tmp/pids/thin.pid"
DASHING_BIN=dashing

usage(){
cat << EOF
usage: $0 options
 This script restarts the Dashing daemon.
 OPTIONS:
    -h        Show this message
    -p        Port where Dashing will listen (defaults to 3030)
    -P        PID file path (defaults to tmp/pids/thin.pid)
    -D        Change to this directory before starting the daemon (defaults to current directory)
    -b        Path to the dashing binary (defaults to just 'dashing' from system path)
EOF
}

while getopts ":p:P:D:b:h" opt; do
  case $opt in
    h)
      usage
      exit 1
      ;;
    p)
      DASHING_PORT=$OPTARG
      ;;
    P)
      DASHING_PID_FILE=$OPTARG
      ;;
    D)
      DASHING_PWD=$OPTARG
      ;;
    b)
      DASHING_BIN=$OPTARG
      ;;
    \?)
      echo "Invalid option: -$OPTARG" >&2
      usage
      exit 1
      ;;
    :)
      echo "Option -$OPTARG requires an argument." >&2
      usage
      exit 1
      ;;
  esac
done

# ensure that dashing runs with utf8
export LANG=en_US.UTF-8
export LC_CTYPE=en_US.UTF-8
export LC_ALL=en_US.UTF-8

export PATH="/usr/local/bin:$PATH"

cd $DASHING_PWD

if [ -f "$DASHING_PID_FILE" ]; then
  kill -9 $(<"$DASHING_PID_FILE") > /dev/null 2>&1
  rm -f $DASHING_PID_FILE
fi

$DASHING_BIN start -d -p $DASHING_PORT --pid $DASHING_PID_FILE
ERR=$?

if [ $ERR != 0 ]; then
    echo "Restart failed. Bailing out."
    exit $ERR
fi

# dashing might take a while to start
while [ ! -f "$DASHING_PID_FILE" ]; do
    sleep 1
done

PID=$(<"$DASHING_PID_FILE")

echo "Restarted Dashing with PID $PID listening on port $DASHING_PORT."
exit $ERR