#! /bin/sh
#
# Microsoft Azure Linux Agent sysV init script
#
# Copyright 2013 Microsoft Corporation
# Copyright SUSE LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# /etc/init.d/waagent
#
#  and symbolic link
#
# /usr/sbin/rcwaagent
#
# System startup script for the waagent
#
### BEGIN INIT INFO
# Provides: MicrosoftAzureLinuxAgent
# Required-Start: $network sshd
# Required-Stop: $network sshd
# Default-Start: 3 5
# Default-Stop: 0 1 2 6
# Description: Start the MicrosoftAzureLinuxAgent
### END INIT INFO

PYTHON=/usr/bin/python
WAZD_BIN=/usr/sbin/waagent
WAZD_CONF=/etc/waagent.conf
WAZD_PIDFILE=/var/run/waagent.pid

test -x "$WAZD_BIN" || { echo "$WAZD_BIN not installed"; exit 5; }
test -e "$WAZD_CONF" || { echo "$WAZD_CONF not found"; exit 6; }

. /etc/rc.status

# First reset status of this service
rc_reset

# Return values acc. to LSB for all commands but status:
# 0 - success
# 1 - misc error
# 2 - invalid or excess args
# 3 - unimplemented feature (e.g. reload)
# 4 - insufficient privilege
# 5 - program not installed
# 6 - program not configured
#
# Note that starting an already running service, stopping
# or restarting a not-running service as well as the restart
# with force-reload (in case signalling is not supported) are
# considered a success.


case "$1" in
    start)
        echo -n "Starting MicrosoftAzureLinuxAgent"
        ## Start daemon with startproc(8). If this fails
        ## the echo return value is set appropriate.
        startproc -f ${PYTHON} ${WAZD_BIN} -start
        rc_status -v
        ;;
    stop)
        echo -n "Shutting down MicrosoftAzureLinuxAgent"
        ## Stop daemon with killproc(8) and if this fails
        ## set echo the echo return value.
        killproc -p ${WAZD_PIDFILE} ${PYTHON} ${WAZD_BIN}
        rc_status -v
        ;;
    try-restart)
        ## Stop the service and if this succeeds (i.e. the
        ## service was running before), start it again.
        $0 status >/dev/null && $0 restart
        rc_status
        ;;
    restart)
        ## Stop the service and regardless of whether it was
        ## running or not, start it again.
        $0 stop
        sleep 1
        $0 start
        rc_status
        ;;
    force-reload|reload)
        rc_status
        ;;
    status)
        echo -n "Checking for service MicrosoftAzureLinuxAgent "
        ## Check status with checkproc(8), if process is running
        ## checkproc will return with exit status 0.

        checkproc -p ${WAZD_PIDFILE} ${PYTHON} ${WAZD_BIN}
        rc_status -v
        ;;
    probe)
        ;;
    *)
        echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload}"
        exit 1
        ;;
esac
rc_exit