icinga/rcido2db

#!/bin/sh
#
# Startup script for IDO2DB
#
# /etc/init.d/ido2db
# and its symbolic link
# /usr/sbin/rcido2db
#
### BEGIN INIT INFO
# Provides:         ido2db
# Required-Start:   $syslog $remote_fs
# Should-Start:     mysql
# Required-Stop:    $syslog $remote_fs
# Should-Stop:      mysql
# Default-Start:    3 5
# Default-Stop:     0 1 2 6
# Short-Description: Icinga Data Output Utilities
# Description: Automatic startup and shutdown of Icinga IDO2DB.
#   IDOUtils is an Icinga addon allowing you to store Icinga data (current status
#   information, state history, notification history, etc.) in a MySQL database.
### END INIT INFO

# Note on runlevels:
# 0 - halt/poweroff                     6 - reboot
# 1 - single user                       2 - multiuser without network exported
# 3 - multiuser w/ network (text mode)  5 - multiuser w/ network and X11 (xdm)

. /etc/rc.status

IDO2DB_BIN="/usr/sbin/ido2db"
IDO2DB_CFG="/etc/icinga/ido2db.cfg"
ICINGA_SYSCONFIG="/etc/sysconfig/icinga"

# grab a config option
get_var() {
    if [ -n "$2" ]; then
        set -- `grep ^$1 $2 | sed 's@=@ @' | tr -d '[:cntrl:]'`
    else
        set -- `grep ^$1 "$IDO2DB_CFG" | sed 's@=@ @' | tr -d '[:cntrl:]'`
    fi
    shift # remove first ARG => search-string
    echo $*
}

# check some default files and directories
check_files() {
    # remove some perhaps left over files
    for file in "$lock_file" "$socket_name"; do
        test -e "$file" && rm -f "$file"
    done

    # create lock directory if it doesn't exist
    PIDDIR=$(dirname $lock_file)
    test -d "$PIDDIR" || install -d -m755 -o$ido2db_user -g$ido2db_group "$PIDDIR"
}

test -x $IDO2DB_BIN || { echo "$IDO2DB_BIN not installed";
    if [ "$1" = "stop" ]; then exit 0;
    else exit 5; fi; }


test -r $IDO2DB_CFG || { echo "$IDO2DB_CFG not existing";
    if [ "$1" = "stop" ]; then exit 0;
    else exit 6; fi; }

# Check for existence of sysconfig file and read it
test -r "$ICINGA_SYSCONFIG" || { echo "$ICINGA_SYSCONFIG not existing or readable.";
    if [ "$1" = "stop" ]; then exit 0;
    else exit 6; fi; }

. "$ICINGA_SYSCONFIG"

# set values for sysconfig vars
if [ -n "$IDO2DB_NICELEVEL" ]; then
    NICELEVEL="-n $IDO2DB_NICELEVEL"
else
    NICELEVEL="-n 0"
fi
if [ -z "$IDO2DB_TIMEOUT" ]; then
    IDO2DB_TIMEOUT=10
fi

#
# get variables from config file
#
lock_file="$(get_var lock_file)"
socket_name="$(get_var socket_name)"
ido2db_user="$(get_var ido2db_user)"
ido2db_group="$(get_var ido2db_group)"

#
# use default values if above check doesn't work
#
: ${lock_file:=/var/run/icinga/ido2db.pid}
: ${socket_name:=/var/run/icinga/ido2db.sock}
: ${ido2db_user:=icinga}
: ${ido2db_group:=icinga}

# Reset status of this service
rc_reset

case "$1" in
    start)
        echo -n "Starting Ido2db "
        IDO2DBPID=$(pidof "$IDO2DB_BIN")
        if [ -z "$IDO2DBPID" ]; then
            check_files
        fi
        startproc $NICELEVEL -p "$lock_file" "$IDO2DB_BIN" -c "$IDO2DB_CFG"

        # Remember status and be verbose
        rc_status -v
    ;;
    stop)
        echo -n "Shutting down Ido2db "

        if checkproc "$IDO2DB_BIN" ; then
            killproc -p "$lock_file" -TERM "$IDO2DB_BIN"
            sleep 1
            if [ -e "$lock_file" ]; then
                echo "Warning - Ido2db did not exit in a timely manner. Waiting..."
                while [ -e "$lock_file" ] && [ $IDO2DB_TIMEOUT -gt 0 ] ; do
                    sleep 1
                    IDO2DB_TIMEOUT=$(($IDO2DB_TIMEOUT - 1))
                    echo -n '.'
                    [ $IDO2DB_TIMEOUT -eq 41 ] && echo
                done
            fi
            if checkproc "$IDO2DB_BIN" ; then
                killproc -p "$lock_file" -SIGKILL "$IDO2DB_BIN"
                echo -n "Warning: Ido2db killed"
            fi
        else
            echo -n "Ido2db not running"
            rc_failed 7
        fi
        check_files
        rc_reset

        # Remember status and be verbose
        rc_status -v
    ;;
    try-restart)
        ## Do a restart only if the service was active before.
        $0 status
        if test $? = 0; then
            $0 restart
        else
            rc_reset        # Not running is not a failure.
        fi
        rc_status
    ;;
    restart)
        $0 stop
        $0 start
        rc_status
    ;;
    reload|force-reload)
        echo -n "Reload service Ido2db "
        config_check
        if [ $? -eq 0 ]; then
            echo -n "Passed configuration check - reloading..."
            killproc -HUP -p "$lock_file" "$IDO2DB_BIN"
        else
            echo "- Error in configuration files"
            echo -n "- aborting reload - please read $IDO2DB_CFG_ERR_LOG"
            rc_failed
        fi
        rc_status -v
    ;;
    status)
        echo -n "Checking for Ido2db "
        checkproc -p "$lock_file" "$IDO2DB_BIN"
        rc_status -v
    ;;
    check)
        echo -n "Starting configuration check "
        config_check
        if [ $? -eq 0 ]; then
            echo "- passed configuration check"
            test -f $IDO2DB_CFG_ERR_LOG && rm $IDO2DB_CFG_ERR_LOG
            rc_reset
        else
            echo "- detected Error in configuration files"
            echo "Please read $IDO2DB_CFG_ERR_LOG"
            rc_failed
        fi
        rc_status -v
    ;;
    check_verbose)
        echo "Running verbose configuration check..."
        config_check verbose
        exitcode=$?
        cat "$IDO2DB_CFG_ERR_LOG"
        rc_failed $exitcode
        rc_status -v
        rc_exit
    ;;
    *)
        echo "Usage: $0 {start|stop|status|try-restart|restart|reload|check|check_verbose}"
        exit 1
        ;;
esac
rc_exit