v-update-sys-rrd-nginx

#!/bin/bash
# info: update nginx rrd
# options: PERIOD
#
# The function is for updating nginx rrd database and graphic.


#----------------------------------------------------------#
#                    Variable&Function                     #
#----------------------------------------------------------#

# Argument defenition
period=${1-daily}

# Includes
source $VESTA/func/main.sh
source $VESTA/conf/vesta.conf


#----------------------------------------------------------#
#                       Action                             #
#----------------------------------------------------------#

# Switching on time period
case $period in
    daily)   start='-1d'; end='now'; grid='MINUTE:30:HOUR:1:HOUR:4:0:%H:%M';;
    weekly)  start='-7d'; end='now'; grid='HOUR:8:DAY:1:DAY:1:0:%a %d';;
    monthly) start='-1m'; end='now'; grid='WEEK:1:WEEK:1:WEEK:1:0:%b %d';;
    yearly)  start='-1y'; end='now'; grid='MONTH:1:YEAR:1:MONTH:2:2419200:%b';;
    *) exit $E_RRD ;;
esac

# Checking directory
if [ ! -d "$RRD/web" ]; then
    mkdir $RRD/web
fi

# Checking database
if [ ! -e "$RRD/web/nginx.rrd" ]; then
    # Adding database
    rrdtool create $RRD/web/nginx.rrd --step $RRD_STEP \
        DS:A:GAUGE:600:U:U \
        RRA:AVERAGE:0.5:1:600 \
        RRA:AVERAGE:0.5:6:700 \
        RRA:AVERAGE:0.5:24:775 \
        RRA:AVERAGE:0.5:288:797 \
        RRA:MAX:0.5:1:600 \
        RRA:MAX:0.5:6:700 \
        RRA:MAX:0.5:24:775 \
        RRA:MAX:0.5:288:797
fi

# Parsing data
if [ "$period" = 'daily' ]; then
    a=$(wget -qO-  http://localhost:8084/|head -n1|cut -f 3 -d ' ')

    # Updating rrd database
    rrdtool update $RRD/web/nginx.rrd N:$a
fi

# Updating rrd graph
rrdtool graph $RRD/web/$period-nginx.png \
    --imgformat PNG \
    --height="150" \
    --width="670" \
    --start "$start" \
    --end "$end" \
    --vertical-label "Connections" \
    --x-grid "$grid" \
    -c "BACK#ffffff" \
    -c "SHADEA#ffffff" \
    -c "SHADEB#ffffff" \
    -c "FONT#555555" \
    -c "CANVAS#302c2d" \
    -c "GRID#666666" \
    -c "MGRID#AAAAAA" \
    -c "FRAME#302c2d" \
    -c "ARROW#FFFFFF" \
    DEF:a=$RRD/web/nginx.rrd:A:AVERAGE \
    COMMENT:'\r' \
    LINE1:a#fefda0:"Connections " \
    GPRINT:a:'LAST:Current\:''%8.0lf' \
    GPRINT:a:'MIN:Min\:''%8.0lf' \
    GPRINT:a:'MAX:Max\:''%8.0lf\j' &>/dev/null; result=$?


#----------------------------------------------------------#
#                       Vesta                              #
#----------------------------------------------------------#

if [ "$result" -ne 0 ]; then
    exit $E_RRD
fi

exit