#!/usr/bin/env bash

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# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you 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.


#run.sh runs the agent client.

cd `dirname "$0"`

SYSTEMJARS="@SYSTEMJARS@"
SCP=$(build-classpath $SYSTEMJARS) ; if [ $? != 0 ] ; then SCP="@SYSTEMCLASSPATH@" ; fi
DCP="@DEPSCLASSPATH@"
ACP="@AGENTCLASSPATH@"
export CLASSPATH=$SCP:$DCP:$ACP:@CPSYSCONFDIR@
for jarfile in "@PREMIUMJAVADIR@"/* ; do
	if [ ! -e "$jarfile" ] ; then continue ; fi
	CLASSPATH=$jarfile:$CLASSPATH
done
for plugin in "@PLUGINJAVADIR@"/* ; do
	if [ ! -e "$plugin" ] ; then continue ; fi
	CLASSPATH=$plugin:$CLASSPATH
done
export CLASSPATH

set -e
cd "@CPLIBDIR@"
echo Current directory is "$PWD"
echo CLASSPATH to run the console proxy: "$CLASSPATH"

export PATH=/sbin:/usr/sbin:"$PATH"
SERVICEARGS=
for x in private public ; do
	configuration=`grep -q "^$x.network.device" "@CPSYSCONFDIR@"/agent.properties || true`
	if [ -n "$CONFIGURATION" ] ; then
		echo "Using manually-configured network device $CONFIGURATION"
	else
		defaultroute=`ip route | grep ^default | cut -d ' ' -f 5`
		test -n "$defaultroute"
		echo "Using auto-discovered network device $defaultroute which is the default route"
		SERVICEARGS="$SERVICEARGS $x.network.device="$defaultroute
	fi
done

function termagent() {
    if [ "$agentpid" != "" ] ; then
	echo Killing VMOps Console Proxy "(PID $agentpid)" with SIGTERM >&2
	kill -TERM $agentpid
	echo Waiting for agent to exit >&2
	wait $agentpid
	ex=$?
	echo Agent exited with return code $ex >&2	
    else
	echo Agent PID is unknown >&2
    fi
}

trap termagent TERM
while true ; do
	java -Xms128M -Xmx384M -cp "$CLASSPATH" "$@" com.cloud.agent.AgentShell $SERVICEARGS &
	agentpid=$!
	echo "Console Proxy started.  PID: $!" >&2
	wait $agentpid
	ex=$?
	if [ $ex -gt 128 ]; then
		echo "wait on console proxy process interrupted by SIGTERM" >&2
		exit $ex
	fi
	echo "Console proxy exited with return code $ex" >&2
	if [ $ex -eq 0 ] || [ $ex -eq 1 ] || [ $ex -eq 66 ] || [ $ex -gt 128 ]; then
		echo "Exiting..." > /dev/stderr
		exit $ex
	fi
	echo "Restarting console proxy..." > /dev/stderr
	sleep 1
done