#!/bin/sh
#
# 2015-2018 Nico Schottelius (nico-cdist at schottelius.org)
# 2015 Steven Armstrong (steven-cdist at armstrong.cc)
#
# This file is part of cdist.
#
# cdist 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 3 of the License, or
# (at your option) any later version.
#
# cdist 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 cdist. If not, see <http://www.gnu.org/licenses/>.
#
### BEGIN INIT INFO
# Provides:          consul
# Required-Start:    $network $local_fs $remote_fs
# Required-Stop:     $local_fs
# Should-Start:
# Should-Stop:
# Short-Description: consul
# Description:       consul agent
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
### END INIT INFO

if [ -f "/etc/default/consul" ]; then
    # shellcheck disable=SC1091
    . /etc/default/consul
fi

# shellcheck disable=SC1091
. /lib/lsb/init-functions

NAME=consul
CONSUL=/usr/local/bin/consul
CONFIG=/etc/$NAME/conf.d
PID_FILE=/var/run/$NAME/pidfile

mkdir -p /var/run/$NAME
chown consul:consul /var/run/$NAME
chmod 2770 /var/run/$NAME

export PATH="${PATH:+$PATH:}/usr/sbin:/sbin"

case "$1" in
    start)
        log_daemon_msg "Starting consul agent" "consul" || true
        if start-stop-daemon --start --quiet --oknodo \
            --pidfile "$PID_FILE" --background \
            --exec $CONSUL -- agent -pid-file="$PID_FILE" -config-dir "$CONFIG"; then
            log_end_msg 0 || true
        else
            log_end_msg 1 || true
        fi
    ;;

    stop)
        log_daemon_msg "Stopping consul agent" "consul" || true
        if start-stop-daemon --stop --quiet --oknodo --pidfile $PID_FILE; then
            log_end_msg 0 || true
        else
            log_end_msg 1 || true
        fi
    ;;

    reload)
        log_daemon_msg "Reloading consul agent" "consul" || true
        if start-stop-daemon --stop --signal HUP --quiet --oknodo --pidfile $PID_FILE --exec $CONSUL; then
            log_end_msg 0 || true
        else
            log_end_msg 1 || true
        fi
    ;;

    restart)
        $0 stop && $0 start
    ;;

    status)
        status_of_proc -p $PID_FILE $CONSUL consul && exit 0 || exit $?
    ;;

    *)
        log_action_msg "Usage: /etc/init.d/consul {start|stop|reload|restart|status}"
        exit 1
    ;;
esac