Created
December 31, 2011 15:02
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init script for vcap components
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#! /bin/sh | |
### BEGIN INIT INFO | |
# Provides: nats_server | |
# Default-Start: 2 3 4 5 | |
# Default-Stop: 0 1 6 | |
# Description: Starts the nats message bus server | |
### END INIT INFO | |
export RUBY_PATH=/home/ubuntu/.rvm/rubies/ruby-1.9.2-p180 | |
export GEM_PATH=/home/ubuntu/.rvm/gems/ruby-1.9.2-p180 | |
EXEC_USER=ubuntu | |
COMPONENT=router | |
CF_ROOT=/home/ubuntu/cloudfoundry/vcap | |
CONFIG_PATH=/home/ubuntu/cloudfoundry/config/$COMPONENT.yml | |
SCRIPT_PATH=$CF_ROOT/$COMPONENT/bin/$COMPONENT | |
PATH=$CF_ROOT/$COMPONENT/bin:$RUBY_PATH/bin:$GEM_PATH/bin:/sbin:/usr/sbin:/bin:/usr/bin | |
DESC="vcap-$COMPONENT" | |
NAME="vcap-$COMPONENT" | |
DAEMON=$RUBY_PATH/bin/ruby | |
DAEMON_NAME=ruby | |
DAEMON_ARGS="$SCRIPT_PATH -c $CONFIG_PATH" | |
PIDFILE=/var/vcap/sys/run/router.pid | |
SCRIPTNAME=/etc/init.d/$NAME | |
# Exit if the package is not installed | |
[ -x "$SCRIPT_PATH" ] || exit 0 | |
# Read configuration variable file if it is present | |
[ -r /etc/default/$NAME ] && . /etc/default/$NAME | |
# Load the VERBOSE setting and other rcS variables | |
. /lib/init/vars.sh | |
# Define LSB log_* functions. | |
# Depend on lsb-base (>= 3.0-6) to ensure that this file is present. | |
. /lib/lsb/init-functions | |
# | |
# Function that starts the daemon/service | |
# | |
do_start() | |
{ | |
# Return | |
# 0 if daemon has been started | |
# 1 if daemon was already running | |
# 2 if daemon could not be started | |
start-stop-daemon --start --user $EXEC_USER --chuid $EXEC_USER \ | |
--quiet --pidfile $PIDFILE --exec $DAEMON --test > /dev/null \ | |
|| return 1 | |
start-stop-daemon --start --user $EXEC_USER --chuid $EXEC_USER \ | |
--quiet --pidfile $PIDFILE --exec $DAEMON --background -- \ | |
$DAEMON_ARGS || return 2 | |
} | |
# | |
# Function that stops the daemon/service | |
# | |
do_stop() | |
{ | |
# Return | |
# 0 if daemon has been stopped | |
# 1 if daemon was already stopped | |
# 2 if daemon could not be stopped | |
# other if a failure occurred | |
start-stop-daemon --stop --quiet --retry=TERM/5/KILL/5 --pidfile $PIDFILE --name $DAEMON_NAME | |
RETVAL="$?" | |
[ "$RETVAL" = 2 ] && return 2 | |
start-stop-daemon --stop --quiet --oknodo --retry=0/10/KILL/5 --pidfile $PIDFILE --exec $DAEMON | |
[ "$?" = 2 ] && return 2 | |
rm -f $PIDFILE | |
return "$RETVAL" | |
} | |
# | |
# Function that sends a SIGHUP to the daemon/service | |
# | |
do_reload() { | |
# | |
# If the daemon can reload its configuration without | |
# restarting (for example, when it is sent a SIGHUP), | |
# then implement that here. | |
# | |
start-stop-daemon --stop --signal 1 --quiet --pidfile $PIDFILE | |
return 0 | |
} | |
case "$1" in | |
start) | |
[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME" | |
do_start | |
case "$?" in | |
0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;; | |
2) [ "$VERBOSE" != no ] && log_end_msg 1 ;; | |
esac | |
;; | |
stop) | |
[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME" | |
do_stop | |
case "$?" in | |
0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;; | |
2) [ "$VERBOSE" != no ] && log_end_msg 1 ;; | |
esac | |
;; | |
status) | |
status_of_proc -p $PIDFILE "$DAEMON" "$NAME" && exit 0 || exit $? | |
;; | |
restart|force-reload) | |
log_daemon_msg "Restarting $DESC" "$NAME" | |
do_stop | |
case "$?" in | |
0|1) | |
do_start | |
case "$?" in | |
0) log_end_msg 0 ;; | |
1) log_end_msg 1 ;; # Old process is still running | |
*) log_end_msg 1 ;; # Failed to start | |
esac | |
;; | |
*) | |
# Failed to stop | |
log_end_msg 1 | |
;; | |
esac | |
;; | |
*) | |
echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2 | |
exit 3 | |
;; | |
esac |
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