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