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contrib-munin/plugins/sensors/sequoia_websens

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2010-03-24 10:15:06 +01:00
#!/bin/sh
#
# Copyright (C) 2010 Mohammad ALI. All rights reserved.
#
# munin plugin that logs temperature and humidity from EM01b-STN (Sequoia Websensor)
#
# To install the plugin, copy or move the plugin to /usr/share/munin/plugins/ set
# the chmod to 755 and create a symbolic link:
# ln -s /usr/share/munin/plugins/sequoia_websens /etc/munin/plugins/sequoia_websens
#
# Configuration variables:
#
# host - host (default "localhost")
# port - port (default "80")
#
# If your environment has a average temperature which differs from the default
# waring and critical value than feel free to configure the warning and critical value
#
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#
# Author
# Mohammad Ali
#
# Version 1.0
# March 19, 2010
# 01:17:14 PM
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#
#%# family=auto
#%# capabilities=autoconf
# These variables are defined in /etc/munin/plugin-conf.d/munin-node
# Define the host (hostname or IP) and the port
host=${host:-localhost}
port=${port:-80}
# Configuration of Munin for graphs and fetching data
if [ "$1" = "config" ]; then
echo "graph_title Sequoia Websensor"
echo "graph_info This graph shows the temperature and humidity"
echo "graph_category sensors"
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echo "graph_args -l 0 -u 100 -r"
echo "graph.scale no"
echo "graph_vlabel % and C°"
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echo "tempsens.label Temperature"
echo "humsens.label Humidity"
echo "tempsens.warning 19:24"
echo "humsens.warning :50"
echo "tempsens.critical 18:25"
echo "humsens.critical :60"
exit 0
fi
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# HTTP GET REQUEST to retrieve the data from the WebSensor
WEBSENS_DATA_FULL=$(printf "GET $host/index.html?em345678 HTTP/1.0 \n\n" | nc $host $port )
# Selecting line of output (in this case body)
WEBSENS_DATA=$(echo "$WEBSENS_DATA_FULL" | grep body)
# Custom formatting for each type to trace only necessary
WEBSENS_TEMP=$(echo "$WEBSENS_DATA" | cut -d ' ' -f11 | cut -d 'H' -f1)
WEBSENS_HUM=$(echo "$WEBSENS_DATA" | cut -d ' ' -f11 | cut -d ':' -f2 | cut -d '%' -f1)
# Sending custom formatted data to munin to create the graphs
echo "tempsens.value $WEBSENS_TEMP"
echo "humsens.value $WEBSENS_HUM"