commit 26819c9e1ee90a26d3faa981dd7082b96b5fb4df Author: Arlo Breault arlolra@gmail.com Date: Sat Oct 26 13:38:37 2013 -0700
Add an init script for the check process.
Closes #17 --- scripts/check.init | 153 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 153 insertions(+)
diff --git a/scripts/check.init b/scripts/check.init new file mode 100755 index 0000000..28340e8 --- /dev/null +++ b/scripts/check.init @@ -0,0 +1,153 @@ +#! /bin/sh +### BEGIN INIT INFO +# Provides: check +# Required-Start: $local_fs $remote_fs $network $syslog $named +# Required-Stop: $local_fs $remote_fs $network $syslog $named +# Default-Start: 2 3 4 5 +# Default-Stop: 0 1 6 +# Short-Description: Start/Stop check +# Description: This file should be used to construct scripts to be +# placed in /etc/init.d. +### END INIT INFO + +# Do NOT "set -e" + +# PATH should only include /usr/* if it runs after the mountnfs.sh script +PATH=/sbin:/usr/sbin:/bin:/usr/bin +DESC="Start/Stop check" +NAME=check +PIDFILE=/var/run/$NAME.pid +LOGFILE=/var/log/$NAME.log +DAEMON=/usr/local/bin/$NAME +DAEMON_ARGS="-pid $PIDFILE -log $LOGFILE -port 8000 -base /opt/check" +SCRIPTNAME=/etc/init.d/$NAME + +# Exit if the package is not installed +[ -x "$DAEMON" ] || exit 0 + +# Read configuration variable file if it is present +#[ -r /etc/default/$NAME ] && . /etc/default/$NAME + +# Load the VERBOSE setting and other rcS variables +. /lib/init/vars.sh + +# Define LSB log_* functions. +# Depend on lsb-base (>= 3.2-14) to ensure that this file is present +# and status_of_proc is working. +. /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 --background --start --quiet --pidfile $PIDFILE --exec $DAEMON --test > /dev/null \ + || return 1 + start-stop-daemon --background --start --quiet --pidfile $PIDFILE --exec $DAEMON -- $DAEMON_ARGS \ + || return 2 + # Add code here, if necessary, that waits for the process to be ready + # to handle requests from services started subsequently which depend + # on this one. As a last resort, sleep for some time. +} + +# +# 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/30/KILL/5 --pidfile $PIDFILE + RETVAL="$?" + [ "$RETVAL" = 2 ] && return 2 + # Wait for children to finish too if this is a daemon that forks + # and if the daemon is only ever run from this initscript. + # If the above conditions are not satisfied then add some other code + # that waits for the process to drop all resources that could be + # needed by services started subsequently. A last resort is to + # sleep for some time. + start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec $DAEMON + [ "$?" = 2 ] && return 2 + # Many daemons don't delete their pidfiles when they exit. + 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 $? + ;; + #reload|force-reload) + # + # If do_reload() is not implemented then leave this commented out + # and leave 'force-reload' as an alias for 'restart'. + # + #log_daemon_msg "Reloading $DESC" "$NAME" + #do_reload + #log_end_msg $? + #;; + restart|force-reload) + # + # If the "reload" option is implemented then remove the + # 'force-reload' alias + # + 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 + +: \ No newline at end of file