octavia/elements/amphora-agent/install.d/amphora-agent-source-install/amphora-agent.init
Michael Johnson 1900ee71a5 Fix a potential race condition with certs-ramfs
There is a potential race condition in the start order for the
amphora-agent service and the certs-ramfs service.
This patch configures an explict ordering for the services.

Change-Id: I8e449b19af72d72f6effd52e0a2debb5754a19b3
Story: 2006823
Task: 37396
2019-11-11 13:45:35 -08:00

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### BEGIN INIT INFO
# Provides: amphora-agent
# Required-Start: $remote_fs $syslog $network certs-ramfs
# Required-Stop: $remote_fs $syslog $network
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Runs the Amphora Agent processes
# Description: This script runs Octavia Amphora Agent processes.
# This script will start the Amphora Agent services
# and kill them.
### END INIT INFO
# Using the lsb functions to perform the operations.
. /lib/lsb/init-functions
# Process name ( For display )
NAME=amphora-agent
# Daemon name, where is the actual executable
DAEMON=/usr/local/bin/amphora-agent
# pid file for the daemon
PIDFILE=/var/run/amphora-agent.pid
# If the daemon is not there, then exit.
test -x $DAEMON || exit 5
case $1 in
start)
# Checked the PID file exists and check the actual status of process
if [ -e $PIDFILE ]; then
status_of_proc -p $PIDFILE $DAEMON "$NAME process" && status="0" || status="$?"
# If the status is SUCCESS then don't need to start again.
if [ $status = "0" ]; then
exit # Exit
fi
fi
# Start the daemon.
log_daemon_msg "Starting the process" "$NAME"
# Start the daemon with the help of start-stop-daemon
# Log the message appropriately
if start-stop-daemon --start -m --quiet --oknodo --pidfile $PIDFILE --startas $DAEMON -- --config-file /etc/octavia/amphora-agent.conf ; then
log_end_msg 0
else
log_end_msg 1
fi
;;
stop)
# Stop the daemon.
if [ -e $PIDFILE ]; then
status_of_proc -p $PIDFILE $DAEMON "Stopping the $NAME process" && status="0" || status="$?"
if [ "$status" = 0 ]; then
start-stop-daemon --stop --quiet --oknodo --pidfile $PIDFILE
/bin/rm -rf $PIDFILE
fi
else
log_daemon_msg "$NAME process is not running"
log_end_msg 0
fi
;;
restart)
# Restart the daemon.
$0 stop && sleep 2 && $0 start
;;
*)
# For invalid arguments, print the usage message.
echo "Usage: $0 {start|stop|restart|reload|status}"
exit 2
;;
esac